My D16A9 DOHC tune up...
Thread Starter
Honda-Tech Member
Joined: Oct 2004
Posts: 822
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From: Finland, Europe, Finland
My D16A9 DOHC tune up...
Hi everybody, i thought i could introduce my upcoming D- series Dohc engine tune up. This EDM Crx is my first car, and it is equipped with potential 130hp Dohc engine. Dont ask me about B-series swap, cuz is just way too expensive, cuz they didint import B16A1- engined CRX to Finland at all. And B16A2's are very rare in here, i would not even talk about B18- series. So, the D-series is most common engine in here, and lot of people has tuned this engine. And i'm a poor student, so i dont have much money available. Only plus is that i study car mechanics.
My car
My plans to do are following:
-Replace exhaust header, i thought 4-1 would be nice, but pretty rare in here. So i think i have to choose Martelius Exhaust's 4-2-1.
-Build Ram- air system from under the bumper thru K&N- filter. This is the trick most of my mates have considered that it is better than cone filter.
-Replace my exhaust system to larger diameter, at least 2". This would be good example, but not sure what's it gonna be.
-Replace my cam gears with adjustable ones. This is also good trick to tune d- series engine.
-Replace camshafts with longer lift, 13mm would be nice. Without destroying idle and driveability. These would be made from old shafts.
-Lift compression ratio a bit taking slice off the head.
-Clean intake and exhaust- channels a bit.
-Plus other mods i have to do and something i dont remember now, 170bhp would be reasonable and i have some buddyes who has done over 180 from D- series.
What i ask from you guys is what you like about this. Post me recommenditions and some tips what would be useful when i start my project. I havent bought any parts yet, but soon i will. Next summer would be nice deadline to my project. In Finland we have loooong winter (always up to May).
Also some exterior tune up is made. First i paint black plastic parts to match body color. Mirrors also. But hey, nothing rice is on my mind. Lightweight f/g body panels are in mind also, my mate have done these a lot. What u think?
In d-series we trust...
Modified by Twilight at 12:09 AM 12/16/2004
My car
My plans to do are following:
-Replace exhaust header, i thought 4-1 would be nice, but pretty rare in here. So i think i have to choose Martelius Exhaust's 4-2-1.
-Build Ram- air system from under the bumper thru K&N- filter. This is the trick most of my mates have considered that it is better than cone filter.
-Replace my exhaust system to larger diameter, at least 2". This would be good example, but not sure what's it gonna be.
-Replace my cam gears with adjustable ones. This is also good trick to tune d- series engine.
-Replace camshafts with longer lift, 13mm would be nice. Without destroying idle and driveability. These would be made from old shafts.
-Lift compression ratio a bit taking slice off the head.
-Clean intake and exhaust- channels a bit.
-Plus other mods i have to do and something i dont remember now, 170bhp would be reasonable and i have some buddyes who has done over 180 from D- series.
What i ask from you guys is what you like about this. Post me recommenditions and some tips what would be useful when i start my project. I havent bought any parts yet, but soon i will. Next summer would be nice deadline to my project. In Finland we have loooong winter (always up to May).
Also some exterior tune up is made. First i paint black plastic parts to match body color. Mirrors also. But hey, nothing rice is on my mind. Lightweight f/g body panels are in mind also, my mate have done these a lot. What u think?
In d-series we trust...
Modified by Twilight at 12:09 AM 12/16/2004
Joined: Jul 2004
Posts: 1,786
Likes: 0
From: NJ
Re: My D16A9 DOHC tune up... (Twilight)
Car looks good but are those the only rims you people get in Europe..
I must have saw those same rims on different edm crx's like 5,000,000 times..
Although you probably say the same about our crx's and black rota slips..
I must have saw those same rims on different edm crx's like 5,000,000 times..
Although you probably say the same about our crx's and black rota slips..
Joined: Dec 2004
Posts: 4
Likes: 0
From: espoo, finland
Re: My D16A9 DOHC tune up... (Mrspeaker)
i think the easiest way to get more power to d16a9 is turbocharge it. In ebay is kits wich include; manifold, turbo, wastegate, and downpipe and it cost about 700$ and shipping in finland is like 100$ and now days when dollar is cheap for europeans it is very cheap. And you had only change the map-sensors location... and get some boost control. D16a9 engine is good because the compression is 9,5:1, so it could handle boost very well...
I was thinking to install mine car that turbo kit, with megasquirt injection and direct ignition and huge intercooler. It will give about 200-250 hp with new fuel and spark management. The biggest problem with the original honda injection is the reason that it doesnt understand boost...
Im also finnish guy so i hope you understand... we can talk about that problems in pm on finnish...
good links for turbocharging non v-tec engines is zc resource and junkyard turbo and homemade turbo sites...
I was thinking to install mine car that turbo kit, with megasquirt injection and direct ignition and huge intercooler. It will give about 200-250 hp with new fuel and spark management. The biggest problem with the original honda injection is the reason that it doesnt understand boost...
Im also finnish guy so i hope you understand... we can talk about that problems in pm on finnish...
good links for turbocharging non v-tec engines is zc resource and junkyard turbo and homemade turbo sites...
Thread Starter
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Joined: Oct 2004
Posts: 822
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From: Finland, Europe, Finland
Re: My D16A9 DOHC tune up... (uglyasscrx)
First thing, the car came up with those rims. Sorry if you dont like.
I'll post picture of the engine bay soon, when i get better camera.
And what for the turbo. I like more at naturally aspirated engine, turbo is always cheaper. But i have decided that my car will stay n/a. And what for 200+ power with turbo, i have saw few accidents caused by D- series con- rods witch arent the best choice for turbo- use.
And what comes from ordering at States is the customs agency. It is a good idea but have you ever ordered from U.S? The shipping takes ages and the tax for ordering outside EU is very high, i can talk about $1200 when it is in Finland. Good idea, but im staying in N/a.
And the biggest concern is the emissions, my car is low- emission 1991 Cat model, so its almost impossible to get my car legally run with turbo. Finland is very strict with the emissions, it could be almost possible with older CRX's. So lets forget the forced induction.
But please, give your comments and tips including tune up the engine!
Modified by Twilight at 5:58 PM 12/15/2004
Modified by Twilight at 6:21 PM 12/15/2004
I'll post picture of the engine bay soon, when i get better camera.
And what for the turbo. I like more at naturally aspirated engine, turbo is always cheaper. But i have decided that my car will stay n/a. And what for 200+ power with turbo, i have saw few accidents caused by D- series con- rods witch arent the best choice for turbo- use.
And what comes from ordering at States is the customs agency. It is a good idea but have you ever ordered from U.S? The shipping takes ages and the tax for ordering outside EU is very high, i can talk about $1200 when it is in Finland. Good idea, but im staying in N/a.
And the biggest concern is the emissions, my car is low- emission 1991 Cat model, so its almost impossible to get my car legally run with turbo. Finland is very strict with the emissions, it could be almost possible with older CRX's. So lets forget the forced induction.
But please, give your comments and tips including tune up the engine!
Modified by Twilight at 5:58 PM 12/15/2004
Modified by Twilight at 6:21 PM 12/15/2004
Joined: Dec 2004
Posts: 4
Likes: 0
From: espoo, finland
Re: My D16A9 DOHC tune up... (Twilight)
if your car is low emission vehicle it is not d16a9 engine. It is i think d16z5 or something like that. we have ordered turbos and turbo kits about worth of 8K€ so i think i know how to get stuff in here... My own crx is -89 so that i can turbocharge with easy... By the way your engines hp is like 124 hp... and that vehicle cannot give free breathing setup 160-180hp... It need big modifications to the engine to have that much power. con rods can easily hold boost about 0,7bar and been driven much.. over that con rods may be weak. With that boost engine will give that over 200hp... And if you became car mechanic you can make forself that turbo kit. Your standard manifold is good for a turbo, you need only make a adapter plate for it.
If you need i can sell for you turbo for that project. And i think that you can get everywhere as cheap new turbo.
here is picture of my car.
disko.irc-galleria.net/00/23/99/60/4021706.jpg
next mods will be kyb suspension with tein springs, black altezza rear lights, all black body panels and erebuni front bumber. and i think paint rims black...
Modified by Vinski at 5:04 AM 12/16/2004
Modified by Vinski at 5:05 AM 12/16/2004
Modified by Vinski at 5:07 AM 12/16/2004
Modified by Vinski at 5:17 AM 12/16/2004
If you need i can sell for you turbo for that project. And i think that you can get everywhere as cheap new turbo.
here is picture of my car.
disko.irc-galleria.net/00/23/99/60/4021706.jpg
next mods will be kyb suspension with tein springs, black altezza rear lights, all black body panels and erebuni front bumber. and i think paint rims black...
Modified by Vinski at 5:04 AM 12/16/2004
Modified by Vinski at 5:05 AM 12/16/2004
Modified by Vinski at 5:07 AM 12/16/2004
Modified by Vinski at 5:17 AM 12/16/2004
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Joined: Jun 2004
Posts: 10,812
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From: So Cal
Re: My D16A9 DOHC tune up... (Vinski)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Twilight »</TD></TR><TR><TD CLASS="quote">Hi everybody, i thought i could introduce my upcoming D- series Dohc engine tune up. This EDM Crx is my first car, and it is equipped with potential 130hp Dohc engine. Dont ask me about B-series swap, cuz is just way too expensive, cuz they didint import B16A1- engined CRX to Finland at all. And B16A2's are very rare in here, i would not even talk about B18- series. So, the D-series is most common engine in here, and lot of people has tuned this engine. And i'm a poor student, so i dont have much money available. Only plus is that i study car mechanics.
My plans to do are following:
-Replace exhaust header, i thought 4-1 would be nice, but pretty rare in here. So i think i have to choose Martelius Exhaust's 4-2-1.
-Build Ram- air system from under the bumper thru K&N- filter. This is the trick most of my mates have considered that it is better than cone filter.
-Replace my exhaust system to larger diameter, at least 2". This would be good example, but not sure what's it gonna be.
-Replace my cam gears with adjustable ones. This is also good trick to tune d- series engine.
-Replace camshafts with longer lift, 13mm would be nice. Without destroying idle and driveability. These would be made from old shafts.
-Lift compression ratio a bit taking slice off the head.
-Clean intake and exhaust- channels a bit.
-Plus other mods i have to do and something i dont remember now, 170bhp would be reasonable and i have some buddyes who has done over 180 from D- series.
What i ask from you guys is what you like about this. Post me recommenditions and some tips what would be useful when i start my project. I havent bought any parts yet, but soon i will. Next summer would be nice deadline to my project. In Finland we have loooong winter (always up to May).
Also some exterior tune up is made. First i paint black plastic parts to match body color. Mirrors also. But hey, nothing rice is on my mind. Lightweight f/g body panels are in mind also, my mate have done these a lot. What u think?
In d-series we trust... </TD></TR></TABLE>
lol you gonna do all that and you consider yourself poor?
My plans to do are following:
-Replace exhaust header, i thought 4-1 would be nice, but pretty rare in here. So i think i have to choose Martelius Exhaust's 4-2-1.
-Build Ram- air system from under the bumper thru K&N- filter. This is the trick most of my mates have considered that it is better than cone filter.
-Replace my exhaust system to larger diameter, at least 2". This would be good example, but not sure what's it gonna be.
-Replace my cam gears with adjustable ones. This is also good trick to tune d- series engine.
-Replace camshafts with longer lift, 13mm would be nice. Without destroying idle and driveability. These would be made from old shafts.
-Lift compression ratio a bit taking slice off the head.
-Clean intake and exhaust- channels a bit.
-Plus other mods i have to do and something i dont remember now, 170bhp would be reasonable and i have some buddyes who has done over 180 from D- series.
What i ask from you guys is what you like about this. Post me recommenditions and some tips what would be useful when i start my project. I havent bought any parts yet, but soon i will. Next summer would be nice deadline to my project. In Finland we have loooong winter (always up to May).
Also some exterior tune up is made. First i paint black plastic parts to match body color. Mirrors also. But hey, nothing rice is on my mind. Lightweight f/g body panels are in mind also, my mate have done these a lot. What u think?
In d-series we trust... </TD></TR></TABLE>
lol you gonna do all that and you consider yourself poor?
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Joined: Nov 2004
Posts: 160
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From: Medina, OH, USA
if i were you i wouldnt mate the 4-1 header with a dual tip exhaust. doing so your goign to see a lot of power shifted to higher RPMS, and your low end torque is just simply going to be less than desirable.
I personally liek the rims, if i owned them i would color the inner "rims" of them the same color as the body, and leave that deep lip polished.
Turbo isnt your only option, teres plenty of high HP d-series, it just takes more money and more tuning.
good luck, the car looks great.
I personally liek the rims, if i owned them i would color the inner "rims" of them the same color as the body, and leave that deep lip polished.
Turbo isnt your only option, teres plenty of high HP d-series, it just takes more money and more tuning.
good luck, the car looks great.
Thread Starter
Honda-Tech Member
Joined: Oct 2004
Posts: 822
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From: Finland, Europe, Finland
Re: (NONVTECSI)
Thanks guys, yup, turbo isint my only option. So i am going for n/a.
Yeah, i said 4-1 (hi rpm power) would be nice, but those are so rare that i have to take 4-2-1. I just showed that picture for example, the final exhaust is wide open whats it gonna be. And the exhaust system picture above, is updated to better option
Have you guys got any experience tune D16- engine without forced induction?
pls, dont hesitate to comment.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vinski »</TD></TR><TR><TD CLASS="quote">if your car is low emission vehicle it is not d16a9 engine. It is i think d16z5 or something like that.</TD></TR></TABLE>
For vinski:
And the story goes like this, my car is 1991 1.6i-16 model, it has came original with D16Z5- low emission engine, you're right. BUT, the previous owner has swapped older D16A9 engine for some reason under the hood. So ít is marked low- emission in here, but it is 130hp/6800rpm D16- dohc engine cuz nobody knows it has been swapped. Dont speak if you dont know anything. Got it?
And the only diffrence about Z5 and A9- engine is milder exhaust camshaft at Z5, catalytic convertor and some settings at ECU to pass low emission.
Sorry for offtopic messages, but somebody doesent know what's going on. No offence. Dont try to tell me what engine im running, i suppose to know whats under MY hood. I hope you guys understand
This topic is gone way too far from the point. So, lets get it back to what it should be. Tune the D16A9 naturally, not with turbos. So tell me guys about your experiences with D16. Thank you.
Modified by Twilight at 12:04 AM 12/16/2004
Modified by Twilight at 12:10 AM 12/16/2004
Yeah, i said 4-1 (hi rpm power) would be nice, but those are so rare that i have to take 4-2-1. I just showed that picture for example, the final exhaust is wide open whats it gonna be. And the exhaust system picture above, is updated to better option
Have you guys got any experience tune D16- engine without forced induction?
pls, dont hesitate to comment.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vinski »</TD></TR><TR><TD CLASS="quote">if your car is low emission vehicle it is not d16a9 engine. It is i think d16z5 or something like that.</TD></TR></TABLE>
For vinski:
And the story goes like this, my car is 1991 1.6i-16 model, it has came original with D16Z5- low emission engine, you're right. BUT, the previous owner has swapped older D16A9 engine for some reason under the hood. So ít is marked low- emission in here, but it is 130hp/6800rpm D16- dohc engine cuz nobody knows it has been swapped. Dont speak if you dont know anything. Got it?
And the only diffrence about Z5 and A9- engine is milder exhaust camshaft at Z5, catalytic convertor and some settings at ECU to pass low emission.
Sorry for offtopic messages, but somebody doesent know what's going on. No offence. Dont try to tell me what engine im running, i suppose to know whats under MY hood. I hope you guys understand
This topic is gone way too far from the point. So, lets get it back to what it should be. Tune the D16A9 naturally, not with turbos. So tell me guys about your experiences with D16. Thank you.
Modified by Twilight at 12:04 AM 12/16/2004
Modified by Twilight at 12:10 AM 12/16/2004
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Joined: May 2002
Posts: 1,285
Likes: 0
From: USA
Re: My D16A9 DOHC tune up... (Twilight)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">i think the easiest way to get more power to d16a9 is turbocharge it</TD></TR></TABLE>
exactly.. easy. whats the fun in that.
http://www.D-Series.org is a good resource, and there are a few heads there that could give you some good advice
If i were you, i would immediately Port and Polish the head,(any shops by you that could do this?) .. I think Skunk 2 .. Venom Etc makes Intake manifolds for your set-up....maybe shave it a bit and get yoursef a strong Head Gasket that might bump up compression a bit, but not unstable. Maybe Modify your injectors... but i'm not sure what options you have for that engine. Of course simple bolt ons like exhaust.. maybe Bizimoto Headers for D-Series(but you cant have AC
, and a nice 2' or 2 1/2 exhaust..... a nice aggressive Cam ... Crower?.. not sure if Crower makes Cams for the D16a9..... I've read they are making good power on SOHC set-ups.. ^_-
After you have done all that, take it to local (?) Dyno and get it tuned.
So i guess if your not taking the engine out completely, it would just entail taking off the head and getting work done?....
I'm bad with the D16a9 .. a8 etc... so these are just some suggestions.. but i'm leaning toward the JDM ZC parts being interchangeable with the A9 somwehat? or at least for aftermarket parts, but then again i dont know what is accessable to you.
http://www.d-series.org
Do a search and ask around... I've seen a few posts about your engine... and actually just untill recently.. i had no idea WTF a D16a9 was..
exactly.. easy. whats the fun in that.
http://www.D-Series.org is a good resource, and there are a few heads there that could give you some good advice
If i were you, i would immediately Port and Polish the head,(any shops by you that could do this?) .. I think Skunk 2 .. Venom Etc makes Intake manifolds for your set-up....maybe shave it a bit and get yoursef a strong Head Gasket that might bump up compression a bit, but not unstable. Maybe Modify your injectors... but i'm not sure what options you have for that engine. Of course simple bolt ons like exhaust.. maybe Bizimoto Headers for D-Series(but you cant have AC
, and a nice 2' or 2 1/2 exhaust..... a nice aggressive Cam ... Crower?.. not sure if Crower makes Cams for the D16a9..... I've read they are making good power on SOHC set-ups.. ^_-After you have done all that, take it to local (?) Dyno and get it tuned.
So i guess if your not taking the engine out completely, it would just entail taking off the head and getting work done?....
I'm bad with the D16a9 .. a8 etc... so these are just some suggestions.. but i'm leaning toward the JDM ZC parts being interchangeable with the A9 somwehat? or at least for aftermarket parts, but then again i dont know what is accessable to you.
http://www.d-series.org
Do a search and ask around... I've seen a few posts about your engine... and actually just untill recently.. i had no idea WTF a D16a9 was..
Joined: Dec 2004
Posts: 4
Likes: 0
From: espoo, finland
Re: My D16A9 DOHC tune up... (OptimusPrimeX)
ok, im wrong with the motor type of your car, im just curious but how you get registered it from finland if your car id:s says that is low emission? How was emissions?
Honda-club in finland make few d16a9 engines and they get up to 167hp at flywheel at not opening the motor this is list what they do:
Adjustable cam gear
lighter pulley gear
lightened flywheel
martelius xl headers and exhaust
adjustable fuel management (i think it is apexi but i dont know sure)
polishing the intake manifold for better flowing (polishing may not be the right name)
at looking that list seem that the horsepower came is top end horsepower... but you can get no more with easy, after that if you need more your changing list for con rods and pistons. I think engine can give much more horsepower out with that setup. D16A9 engines weakest part is the con rods, and high mileage engines are prone to crack. And same the reason came when you increase compression.
at a crx the stock exhaust is very sloppy, honda-club members get at dyno 17hp more when they changed martelius headers and exhaust.
Few guys in finland have invidia exhaust on their d16a9 engines and they said it is much better than martelius.
And if you change the compression, dont ever think to buy new headgasket motonet or other aftermarket companies. They be expensive for oem but many people had troubles with aftermarket gaskets especially in tuned engines. Some newer civic head gasket may be good also.
Honda-club in finland make few d16a9 engines and they get up to 167hp at flywheel at not opening the motor this is list what they do:
Adjustable cam gear
lighter pulley gear
lightened flywheel
martelius xl headers and exhaust
adjustable fuel management (i think it is apexi but i dont know sure)
polishing the intake manifold for better flowing (polishing may not be the right name)
at looking that list seem that the horsepower came is top end horsepower... but you can get no more with easy, after that if you need more your changing list for con rods and pistons. I think engine can give much more horsepower out with that setup. D16A9 engines weakest part is the con rods, and high mileage engines are prone to crack. And same the reason came when you increase compression.
at a crx the stock exhaust is very sloppy, honda-club members get at dyno 17hp more when they changed martelius headers and exhaust.
Few guys in finland have invidia exhaust on their d16a9 engines and they said it is much better than martelius.
And if you change the compression, dont ever think to buy new headgasket motonet or other aftermarket companies. They be expensive for oem but many people had troubles with aftermarket gaskets especially in tuned engines. Some newer civic head gasket may be good also.
Honda-Tech Member
Joined: Nov 2002
Posts: 17,227
Likes: 2
From: Illinois
Re: My D16A9 DOHC tune up... (Twilight)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Twilight »</TD></TR><TR><TD CLASS="quote">-Replace my cam gears with adjustable ones. This is also good trick to tune d- series engine.
</TD></TR></TABLE>
Just get 1 cam gear if your staying with a sohc
Anyways nice car
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NONVTECSI »</TD></TR><TR><TD CLASS="quote">Keep the exhaust to single if you lookin for power bro...</TD></TR></TABLE>
A muffler is not gonna give you or take away enough power to worry about, unless for some reason your muffler is a solid piece of metal.
</TD></TR></TABLE>
Just get 1 cam gear if your staying with a sohc
Anyways nice car
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NONVTECSI »</TD></TR><TR><TD CLASS="quote">Keep the exhaust to single if you lookin for power bro...</TD></TR></TABLE>
A muffler is not gonna give you or take away enough power to worry about, unless for some reason your muffler is a solid piece of metal.
Joined: Jul 2004
Posts: 1,786
Likes: 0
From: NJ
Re: My D16A9 DOHC tune up... (90blackcrx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx »</TD></TR><TR><TD CLASS="quote">
Just get 1 cam gear if your staying with a sohc
</TD></TR></TABLE>
His motor is a d16a9 ..Dohc..Its the EDM version of a ZC motor..
Just get 1 cam gear if your staying with a sohc
</TD></TR></TABLE>
His motor is a d16a9 ..Dohc..Its the EDM version of a ZC motor..
Honda-Tech Member
Joined: Nov 2002
Posts: 17,227
Likes: 2
From: Illinois
Re: My D16A9 DOHC tune up... (Mrspeaker)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mrspeaker »</TD></TR><TR><TD CLASS="quote">
His motor is a d16a9 ..Dohc..Its the EDM version of a ZC motor..
</TD></TR></TABLE>
lol then get 2, its late sorry for that mistake.
His motor is a d16a9 ..Dohc..Its the EDM version of a ZC motor..
</TD></TR></TABLE>
lol then get 2, its late sorry for that mistake.
Joined: Jul 2004
Posts: 1,786
Likes: 0
From: NJ
Re: My D16A9 DOHC tune up... (90blackcrx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx »</TD></TR><TR><TD CLASS="quote">
lol then get 2, its late sorry for that mistake.</TD></TR></TABLE>
Yeah it is late ..I dont know why the fu*k I'm up..
lol then get 2, its late sorry for that mistake.</TD></TR></TABLE>
Yeah it is late ..I dont know why the fu*k I'm up..
Thread Starter
Honda-Tech Member
Joined: Oct 2004
Posts: 822
Likes: 0
From: Finland, Europe, Finland
Re: My D16A9 DOHC tune up... (Mrspeaker)
Thanks guys for replies.
exactly.. easy. whats the fun in that.
http://www.D-Series.org is a good resource, and there are a few heads there that could give you some good advice
If i were you, i would immediately Port and Polish the head,(any shops by you that could do this?) .. I think Skunk 2 .. Venom Etc makes Intake manifolds for your set-up....maybe shave it a bit and get yoursef a strong Head Gasket that might bump up compression a bit, but not unstable. Maybe Modify your injectors... but i'm not sure what options you have for that engine. Of course simple bolt ons like exhaust.. maybe Bizimoto Headers for D-Series(but you cant have AC , and a nice 2' or 2 1/2 exhaust..... a nice aggressive Cam ... Crower?.. not sure if Crower makes Cams for the D16a9..... I've read they are making good power on SOHC set-ups.. ^_-
After you have done all that, take it to local (?) Dyno and get it tuned.
So i guess if your not taking the engine out completely, it would just entail taking off the head and getting work done?....
I'm bad with the D16a9 .. a8 etc... so these are just some suggestions.. but i'm leaning toward the JDM ZC parts being interchangeable with the A9 somwehat? or at least for aftermarket parts, but then again i dont know what is accessable to you.
Do a search and ask around... I've seen a few posts about your engine... and actually just untill recently.. i had no idea WTF a D16a9 was..
I will clean some intake/exhaust channels by my self, and i think i drop the head to mate of mine who has polished some heads. So i think that's not going to be a problem.
Hmm, i think i'm going to stay in orginal intake manifold. But i replace the exhaust header with martelius's one.
And what goes for camshafts, i got it covered. One of my mate does higher camshafts from old orginal camshafts by himself. So i have to pay something that he could do me a new performance camshafts, new are always so expensive. And the result is same, plus i can decide how big lift im gonna use.
Yeah, i have to run my car to local dyno, and tune it up.
I am member of HCoF.
I suppose i have to buy fuel pressure controller (witch honda-club of Finland used also in their 175hp d16a9), not fuel management. Yeah, i think 180-190bhp would be good enough to sprint my car so well.
But, i'd say 180 would be first point. 2nd point would be nice B- series. But, lets not talk about that.
I'm glad that my engine only does have 70.000km, cuz its have been swapped. And the clock has only 117.000km.
And what comes for compression ratio, i think i only would take 1.1mm from the surface, and then the compression would come aprx. 10:5. So its not too much, not too much for daily driven D16a9.
And yes, the D16A9 is Dohc engine. I'll give you a list to fresh some minds.
In Europe it was like this
D14A1 90hp/6300rpm 112Nm/4500rpm ('90-91)
Soch, 2-carb
D16A6 110hp/6300rpm 134Nm/5300rpm ('88)
Sohc, PGM-FI, CAT
D16A7 116hp/6200rpm 142Nm/5200rpm ('88-91)
Sohc, PGM-FI
D16A8 130hp/6800rpm 143Nm/5700rpm ('88-91)
Dohc, PGM-FI, CAT
D16A9 130hp/6800rpm 143Nm/5700rpm ('88-91)
Dohc, PGM-FI
D16Z5 124hp/6800rpm 140Nm/5700rpm ('89-91)
Dohc, PGM-FI, CAT, low emission
B16A1 150hp/7600rpm 144Nm/7100rpm ('90-91)
Dohc, Vtec, PGM-FI, CAT, low emission
Hope this cleared something.
Originally Posted by OptimusPrimeX
exactly.. easy. whats the fun in that.
http://www.D-Series.org is a good resource, and there are a few heads there that could give you some good advice
If i were you, i would immediately Port and Polish the head,(any shops by you that could do this?) .. I think Skunk 2 .. Venom Etc makes Intake manifolds for your set-up....maybe shave it a bit and get yoursef a strong Head Gasket that might bump up compression a bit, but not unstable. Maybe Modify your injectors... but i'm not sure what options you have for that engine. Of course simple bolt ons like exhaust.. maybe Bizimoto Headers for D-Series(but you cant have AC , and a nice 2' or 2 1/2 exhaust..... a nice aggressive Cam ... Crower?.. not sure if Crower makes Cams for the D16a9..... I've read they are making good power on SOHC set-ups.. ^_-
After you have done all that, take it to local (?) Dyno and get it tuned.
So i guess if your not taking the engine out completely, it would just entail taking off the head and getting work done?....
I'm bad with the D16a9 .. a8 etc... so these are just some suggestions.. but i'm leaning toward the JDM ZC parts being interchangeable with the A9 somwehat? or at least for aftermarket parts, but then again i dont know what is accessable to you.
Do a search and ask around... I've seen a few posts about your engine... and actually just untill recently.. i had no idea WTF a D16a9 was..
Hmm, i think i'm going to stay in orginal intake manifold. But i replace the exhaust header with martelius's one.
And what goes for camshafts, i got it covered. One of my mate does higher camshafts from old orginal camshafts by himself. So i have to pay something that he could do me a new performance camshafts, new are always so expensive. And the result is same, plus i can decide how big lift im gonna use.
Yeah, i have to run my car to local dyno, and tune it up.
Originally Posted by Vinski
Honda-club in finland make few d16a9 engines and they get up to 167hp at flywheel at not opening the motor this is list what they do:
Adjustable cam gear
lighter pulley gear
lightened flywheel
martelius xl headers and exhaust
adjustable fuel management (i think it is apexi but i dont know sure)
polishing the intake manifold for better flowing (polishing may not be the right name)
at looking that list seem that the horsepower came is top end horsepower... but you can get no more with easy, after that if you need more your changing list for con rods and pistons. I think engine can give much more horsepower out with that setup. D16A9 engines weakest part is the con rods, and high mileage engines are prone to crack. And same the reason came when you increase compression.
at a crx the stock exhaust is very sloppy, honda-club members get at dyno 17hp more when they changed martelius headers and exhaust.
Few guys in finland have invidia exhaust on their d16a9 engines and they said it is much better than martelius.
Adjustable cam gear
lighter pulley gear
lightened flywheel
martelius xl headers and exhaust
adjustable fuel management (i think it is apexi but i dont know sure)
polishing the intake manifold for better flowing (polishing may not be the right name)
at looking that list seem that the horsepower came is top end horsepower... but you can get no more with easy, after that if you need more your changing list for con rods and pistons. I think engine can give much more horsepower out with that setup. D16A9 engines weakest part is the con rods, and high mileage engines are prone to crack. And same the reason came when you increase compression.
at a crx the stock exhaust is very sloppy, honda-club members get at dyno 17hp more when they changed martelius headers and exhaust.
Few guys in finland have invidia exhaust on their d16a9 engines and they said it is much better than martelius.
I suppose i have to buy fuel pressure controller (witch honda-club of Finland used also in their 175hp d16a9), not fuel management. Yeah, i think 180-190bhp would be good enough to sprint my car so well.
But, i'd say 180 would be first point. 2nd point would be nice B- series. But, lets not talk about that.I'm glad that my engine only does have 70.000km, cuz its have been swapped. And the clock has only 117.000km.
And what comes for compression ratio, i think i only would take 1.1mm from the surface, and then the compression would come aprx. 10:5. So its not too much, not too much for daily driven D16a9.
And yes, the D16A9 is Dohc engine. I'll give you a list to fresh some minds.
In Europe it was like this
D14A1 90hp/6300rpm 112Nm/4500rpm ('90-91)
Soch, 2-carb
D16A6 110hp/6300rpm 134Nm/5300rpm ('88)
Sohc, PGM-FI, CAT
D16A7 116hp/6200rpm 142Nm/5200rpm ('88-91)
Sohc, PGM-FI
D16A8 130hp/6800rpm 143Nm/5700rpm ('88-91)
Dohc, PGM-FI, CAT
D16A9 130hp/6800rpm 143Nm/5700rpm ('88-91)
Dohc, PGM-FI
D16Z5 124hp/6800rpm 140Nm/5700rpm ('89-91)
Dohc, PGM-FI, CAT, low emission
B16A1 150hp/7600rpm 144Nm/7100rpm ('90-91)
Dohc, Vtec, PGM-FI, CAT, low emission
Hope this cleared something.
Joined: Dec 2004
Posts: 4
Likes: 0
From: espoo, finland
Re: My D16A9 DOHC tune up... (Twilight)
at next to my crxin parking lot is 91 crx which is imported from germany.... and in clock has only 140000 km, and comparing that car to mine 200000km driven finnish one can see how much it has been taken of... i had original honda exhaust and no signs of changing it but that newer export one have aftermarket exhaust... also the car have more dents and rock hittings on the front... (I have export one motorcycle(kawa zx 7r) from germany and know it had been clocked of so much kilometers... the engine almost blows few month after export and luckily i dont have it anymore)
for the camshaft id say that i dont ever make more lift and opening time using old camshafts... at my old car (pug 205 gti) i was thinking about that and old vice mens said it would ruin my motor because the will not last as just 10-15000km... so if you are making car for use id rather not do nothing for the camshafts... and i think you get as much hp with out it...
are you thinking about megasquirt??? it was such easy to have programmable fuel injection and direct ignition for your car... and such a small invest.
by the way if you are interested to order cheaper parts for your car over seas, i was ordering at january/february .
for the camshaft id say that i dont ever make more lift and opening time using old camshafts... at my old car (pug 205 gti) i was thinking about that and old vice mens said it would ruin my motor because the will not last as just 10-15000km... so if you are making car for use id rather not do nothing for the camshafts... and i think you get as much hp with out it...
are you thinking about megasquirt??? it was such easy to have programmable fuel injection and direct ignition for your car... and such a small invest.
by the way if you are interested to order cheaper parts for your car over seas, i was ordering at january/february .
Thread Starter
Honda-Tech Member
Joined: Oct 2004
Posts: 822
Likes: 0
From: Finland, Europe, Finland
Re: My D16A9 DOHC tune up... (Vinski)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vinski »</TD></TR><TR><TD CLASS="quote">for the camshaft id say that i dont ever make more lift and opening time using old camshafts... at my old car (pug 205 gti) i was thinking about that and old vice mens said it would ruin my motor because the will not last as just 10-15000km... so if you are making car for use id rather not do nothing for the camshafts... and i think you get as much hp with out it...</TD></TR></TABLE>
As i said one of my mates have done this before. He did "new" camshafts from the old one's to his 89 Honda Civic 1.6i-16. He has driven 4years now with the same setup. 170bhp D16A9- engine. And no problems whatsoever.
As i said one of my mates have done this before. He did "new" camshafts from the old one's to his 89 Honda Civic 1.6i-16. He has driven 4years now with the same setup. 170bhp D16A9- engine. And no problems whatsoever.
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