SOHC done right. My d16z6 build.
03-08-2007, 10:45 AM
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Re: (Aquafina)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina »</TD></TR><TR><TD CLASS="quote">As an aside from this, I run the same times as really good condition LS swaps in 96-00 Civic coupes with bolt ons. I've pulled on a 12.5:1 bolt on LS in a 99 coupe (basemap, no tuning, stock head and IM). All I have is a semi built trans and a SMSP header/exhaust. This is with a 150,000'ish mile Y7 in a heavier than stock 96 hatch.</TD></TR></TABLE>
You have run the same times? post the slip, have you actually been to the track? You cannot make generalizations based on one street race.
140bhp LS vs **** I don't even know how much HP a Y7 has but I know with a header it's no where near 140bhp and with less torque too. So you have better gearing... maybe. Sorry, it's not happening. The LS was probably detonating to hell alongside you w/ a 12.5cr and no tuning.
You have run the same times? post the slip, have you actually been to the track? You cannot make generalizations based on one street race.
140bhp LS vs **** I don't even know how much HP a Y7 has but I know with a header it's no where near 140bhp and with less torque too. So you have better gearing... maybe. Sorry, it's not happening. The LS was probably detonating to hell alongside you w/ a 12.5cr and no tuning.
03-08-2007, 12:55 PM
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Re: (Natural Aspirations)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by powerofdreams8 »</TD></TR><TR><TD CLASS="quote">
hopes, dreams, and "addition of attention to detail" doesn't buy horsepower.
show me some 150+ whp SOHC's, not saying there arent any but I haven't seen them.</TD></TR></TABLE>
https://honda-tech.com/zerothread?id=1867431
You have to click on the little dyno thumbnails.
That was with 38mm chokes in the carbs, I think with 40s it should go over 170 sae along with some jetting and timing changes I have made.
hopes, dreams, and "addition of attention to detail" doesn't buy horsepower.
show me some 150+ whp SOHC's, not saying there arent any but I haven't seen them.</TD></TR></TABLE>
https://honda-tech.com/zerothread?id=1867431
You have to click on the little dyno thumbnails.
That was with 38mm chokes in the carbs, I think with 40s it should go over 170 sae along with some jetting and timing changes I have made.
03-08-2007, 05:39 PM
#55
Re: (powerofdreams8)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by powerofdreams8 »</TD></TR><TR><TD CLASS="quote">
You have run the same times? post the slip, have you actually been to the track? You cannot make generalizations based on one street race.
140bhp LS vs **** I don't even know how much HP a Y7 has but I know with a header it's no where near 140bhp and with less torque too. So you have better gearing... maybe. Sorry, it's not happening. The LS was probably detonating to hell alongside you w/ a 12.5cr and no tuning.</TD></TR></TABLE>
lol, you're an idiot.
Yes I has timeslips of mine, but not theirs. 16.043 w/ 2.7 60' The LS runs fine, he drives it daily on 93/110 50/50 mix.
You have run the same times? post the slip, have you actually been to the track? You cannot make generalizations based on one street race.
140bhp LS vs **** I don't even know how much HP a Y7 has but I know with a header it's no where near 140bhp and with less torque too. So you have better gearing... maybe. Sorry, it's not happening. The LS was probably detonating to hell alongside you w/ a 12.5cr and no tuning.</TD></TR></TABLE>
lol, you're an idiot.
Yes I has timeslips of mine, but not theirs. 16.043 w/ 2.7 60' The LS runs fine, he drives it daily on 93/110 50/50 mix.
03-09-2007, 08:49 AM
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Re: (Aquafina)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina »</TD></TR><TR><TD CLASS="quote">lol, you're an idiot.
Yes I has timeslips of mine, but not theirs. 16.043 w/ 2.7 60' The LS runs fine, he drives it daily on 93/110 50/50 mix.</TD></TR></TABLE>
Haha, that LS sounds just about as silly of an endeavor as a NA singlecam build. And props to you with that 2.7 60ft, you must be an awesome driver. Ask for my slips and credentials.
On a positive note, I am happy to find the OP built this for autocross. I am actually anxious to see what it does on the dyno.
What kind of head flow does a well ported d-series do compared to a stock b16?
Yes I has timeslips of mine, but not theirs. 16.043 w/ 2.7 60' The LS runs fine, he drives it daily on 93/110 50/50 mix.</TD></TR></TABLE>
Haha, that LS sounds just about as silly of an endeavor as a NA singlecam build. And props to you with that 2.7 60ft, you must be an awesome driver. Ask for my slips and credentials.
On a positive note, I am happy to find the OP built this for autocross. I am actually anxious to see what it does on the dyno.
What kind of head flow does a well ported d-series do compared to a stock b16?
03-09-2007, 09:17 AM
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Re: (Aquafina)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina »</TD></TR><TR><TD CLASS="quote">When teh track is prepped my 60' is 2.3. Best you can get without slicks (and horsepower) at Bristol.</TD></TR></TABLE>
03-09-2007, 09:52 AM
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Re: (powerofdreams8)
I think a good ported d16z6 with stock valve sizes of 30mm intake and 26mm exhaust should flow around 215-220 cfm on the intake. A ported d16a6 might flow slightly less because of the 29mm intake and 25mm exhaust valves.
It seems to me just from my experience with my own sohc and the strong midrange it has, that the small valves seem to help with midrange and low end torque--so you don't have to rev as high to make good hp. Although the small valves also limit how high you can make power simply because they can't swallow the volume of air at high revs that a largish cam can give you.
The difference in power is less than you would think considering the valve size difference of a d-series and a b series vtec--in other words they aren't that much of a hindrance.
It seems to me just from my experience with my own sohc and the strong midrange it has, that the small valves seem to help with midrange and low end torque--so you don't have to rev as high to make good hp. Although the small valves also limit how high you can make power simply because they can't swallow the volume of air at high revs that a largish cam can give you.
The difference in power is less than you would think considering the valve size difference of a d-series and a b series vtec--in other words they aren't that much of a hindrance.
03-09-2007, 10:01 AM
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Re: (d16dcoe45)
Also, if you really understand how a motor works you can make any motor put out good numbers. I happen to think the sohc non vtec d-series (and the sohc vtec) is a fantastic motor when you know what areas to work on to unleash its full potential.
The motor I built can be reproduced relatively cheaply if you are willing to use maybe p29 pistons and stock 86-89 integra or modified 90-93 integra rods--every thing else is pretty simple. The carbs are a key factor.
I think its a neat way to go and in a light EF or EG hatch you can have a pretty fast (12 second) all motor 1.6 liter sohc. Even quicker if you are willing to sleeve to 78 or 78.5. 79 doesn't last too long--I am sure for some people it has, but I feel much safer at 78 --at least for a street motor.
I have some ideas I am throwing around for another build, possibly using a thin-deckplate a6 block to stuff a nice long rod in there and keep the 90mm stroke, and a much modified head to be able to have power peak at 7800-8000 rpm--and have the motor survive for a longish time.
The motor I built can be reproduced relatively cheaply if you are willing to use maybe p29 pistons and stock 86-89 integra or modified 90-93 integra rods--every thing else is pretty simple. The carbs are a key factor.
I think its a neat way to go and in a light EF or EG hatch you can have a pretty fast (12 second) all motor 1.6 liter sohc. Even quicker if you are willing to sleeve to 78 or 78.5. 79 doesn't last too long--I am sure for some people it has, but I feel much safer at 78 --at least for a street motor.
I have some ideas I am throwing around for another build, possibly using a thin-deckplate a6 block to stuff a nice long rod in there and keep the 90mm stroke, and a much modified head to be able to have power peak at 7800-8000 rpm--and have the motor survive for a longish time.
03-11-2007, 03:44 PM
#63
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Re: (Aquafina)
Now im debating on this rad.
http://cgi.ebay.com/ebaymotors...QrdZ1Im not sure how nice the quality is. But for 95$shipped its almost worth the risk. Looks decent in the pics. And the size isnt conserning to me because z6's have that size stock. (its half the size of my EF rad.
check it out:
Let me know what you guys think.
http://cgi.ebay.com/ebaymotors...QrdZ1Im not sure how nice the quality is. But for 95$shipped its almost worth the risk. Looks decent in the pics. And the size isnt conserning to me because z6's have that size stock. (its half the size of my EF rad.
check it out:
Let me know what you guys think.
03-11-2007, 04:11 PM
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Re: (spun Vtec)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spun Vtec »</TD></TR><TR><TD CLASS="quote">Now im debating on this rad.
http://cgi.ebay.com/ebaymotors...QrdZ1Im not sure how nice the quality is. But for 95$shipped its almost worth the risk. Looks decent in the pics. And the size isnt conserning to me because z6's have that size stock. (its half the size of my EF rad.
check it out:
</TD></TR></TABLE>
is that the "mishimoto" one? I had an ebay al. rad, but it was a piece of crap. The welds leaked, the drain plug seized inside the hole, and the stem where the cap mounts was made of like 18 gauge stamped steel and it would leak and bend when you put the cap on.
I have the mishimoto one now I got from ebay for like $120 shipped or something. It has been on my car for like 18 months and it hasn't had a single problem. much better quality
http://cgi.ebay.com/ebaymotors...QrdZ1Im not sure how nice the quality is. But for 95$shipped its almost worth the risk. Looks decent in the pics. And the size isnt conserning to me because z6's have that size stock. (its half the size of my EF rad.
check it out:
</TD></TR></TABLE>
is that the "mishimoto" one? I had an ebay al. rad, but it was a piece of crap. The welds leaked, the drain plug seized inside the hole, and the stem where the cap mounts was made of like 18 gauge stamped steel and it would leak and bend when you put the cap on.
I have the mishimoto one now I got from ebay for like $120 shipped or something. It has been on my car for like 18 months and it hasn't had a single problem. much better quality
03-11-2007, 04:49 PM
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Re: (743power)
thats this one
http://cgi.ebay.com/ebaymotors...ZWDVW
It looks like its better quality. Its 165 shipped.only 70$ more. but prob worth it.
http://cgi.ebay.com/ebaymotors...ZWDVW
It looks like its better quality. Its 165 shipped.only 70$ more. but prob worth it.
03-12-2007, 04:26 AM
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Re: (spun Vtec)
I'll prob end up getting that rad myself too, i just spoiled myself on the other car with some 23mm rear sway bars, toe-link, end-bar links, and new trailing arm bushings, OH and some yummy ss lines
as far as the whole is it worth it.. i have a lot of fun building an engine, i mean i like the fact that im spending an afternoon weighing rocker arms.. polishing them.. will it do anything, prob not.. but its my engine and my time...
its all about what makes you the driver happy.. and i will have pics on my build asap.. i dropped the camera off about an hour ago, and will post tomorrow when i pick them up.
as far as the whole is it worth it.. i have a lot of fun building an engine, i mean i like the fact that im spending an afternoon weighing rocker arms.. polishing them.. will it do anything, prob not.. but its my engine and my time...
its all about what makes you the driver happy.. and i will have pics on my build asap.. i dropped the camera off about an hour ago, and will post tomorrow when i pick them up.
03-18-2007, 07:11 AM
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Re: (GarageAlchemist)
I thought many of you guys would like these links. I just saw them the other day.
230bhp d16 vtec:
https://honda-tech.com/zerothread?id=1313920
215bhp d16a6 non vtec
https://honda-tech.com/zerothread?id=1118959
230bhp d16 vtec:
https://honda-tech.com/zerothread?id=1313920
215bhp d16a6 non vtec
https://honda-tech.com/zerothread?id=1118959
03-18-2007, 02:42 PM
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Re: (spun Vtec)
Summit racing actually sells a Fluidyne 1/2 size rad. specifically for the EF chassis--its about 1" shorter so you can stand it up straight without interfering with the hood. http://store.summitracing.com/...w=sku
03-19-2007, 12:31 AM
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Re: (d16dcoe45)
Damn that's a nice rad. But there is a ton I can do with 340$. I still need shocks and I didnt get my LSD yet. I dont really "need" a rad.
It was more for the blink factor I guess. And for only 150$ thats alot less than 340.
I'll see how my cooling issues are when i get the new motor in.
Thanks for the option
It was more for the blink factor I guess. And for only 150$ thats alot less than 340.
I'll see how my cooling issues are when i get the new motor in.
Thanks for the option
03-19-2007, 04:33 AM
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Re: (spun Vtec)
Yeah it is pricey. I am figuring at some point Mishimoto and the knock off brands will start selling a shorter 1/2 width EF fitment rad. like the Fluidyne above.
03-29-2007, 03:16 PM
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Re: (spun Vtec)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spun Vtec »</TD></TR><TR><TD CLASS="quote">I thought many of you guys would like these links. I just saw them the other day.
230bhp d16 vtec:
https://honda-tech.com/zerothread?id=1313920
215bhp d16a6 non vtec
https://honda-tech.com/zerothread?id=1118959</TD></TR></TABLE>
Yea, those are both totally bunk, read both threads thoroughly and then speak. I want to see a real WHP graph, notice the 270# torque on one of those... YEA sounds like a real accurate dyno.
Mishimoto rad: been running one on my 400whp b-series for a year; no problems. But I can see how that shorter fluidyne for CRX's would be nice. I got my mishimoto for 105 shipped.
230bhp d16 vtec:
https://honda-tech.com/zerothread?id=1313920
215bhp d16a6 non vtec
https://honda-tech.com/zerothread?id=1118959</TD></TR></TABLE>
Yea, those are both totally bunk, read both threads thoroughly and then speak. I want to see a real WHP graph, notice the 270# torque on one of those... YEA sounds like a real accurate dyno.
Mishimoto rad: been running one on my 400whp b-series for a year; no problems. But I can see how that shorter fluidyne for CRX's would be nice. I got my mishimoto for 105 shipped.
04-03-2007, 04:41 PM
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Re: (mojo_stevo)
I wish I had to know ho to unlease the powere out of my y8. I wana run some (29 pistons, but Im scared of tearing apart my engine, and all the other issues with running compression that high.
04-04-2007, 06:21 AM
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Re: (jt-sport)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jt-sport »</TD></TR><TR><TD CLASS="quote">thats why D's are better than B's :
</TD></TR></TABLE>
yeah, only when you're talking about cupsizes and not engines.
</TD></TR></TABLE>yeah, only when you're talking about cupsizes and not engines.