i have a dohc zc in my 89 hatch and im trying different comptuer/chip combos.

stock pg7 runs pretty good, but runs really rich. rev limit at 7200.

i need 7800 or 8000 rev limiter

tried chipping a pr4 with a raised rev limit (still hit at 6800), but it ran like hell alltogether

what about pm6/7 ? anybody else run any other computers in their zc?

 

there's a tradeoff involved. PM6 will run a little rich, and a PM7 will work great but, you will be speed limited to 110mph. or you can go zdyne and forego all that stuff.

 

if you plan to run 8,000 RPM I hope you aren't running stock rods, thats when they nearly always fail.. ANd to make power aboove 7,000 you need head ported and some radical cams.

You can get a PM7 chipped to remove rev limiter, or Chip a PM6 with PM7 maps and no speed limiter, but stay away from Ebay chips they suck.

7,200 rpm is the DOHC ZC red line.

 

some info here

https://honda-tech.com/zerothread?id=703165

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zcNOS &raquo;</TD></TR><TR><TD CLASS="quote">i have a dohc zc in my 89 hatch and im trying different comptuer/chip combos.

stock pg7 runs pretty good, but runs really rich. rev limit at 7200.

i need 7800 or 8000 rev limiter

your red line should only be at 7200 when the engine is cold, it should go to 7500 when your engine is warm. That is enough for a stock zc. </TD></TR></TABLE>

 

just get the jdm zc ecu its meant for that motor.

 

it feels like my motor doesnt start building power until after 6500, and then just after 7, it hits the rev limiter. when im not paying attention to the tach, i hit it almost every time, it just seems like it wants to rev higher. but if 7200/7500 is alot of rev for that motor i will leave the rev limiter alone.

my main concern was all the black smoke coming out the tail pipe while running the pg7 computer.

 

i'm running a pg7, and i get no smoke at all.. in fact i think its alittle lean. the pg7 red line is at 7650 tho,.. don't know why urs hits at 7200

 

Why don't you get a real motor like.... a B-series

 

get an edm pm7 - no speed limiter

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iain &raquo;</TD></TR><TR><TD CLASS="quote">get an edm pm7 - no speed limiter</TD></TR></TABLE>

you have to be careful with that, because there are two PM7, one we can use and one we cant...the one we cant has the COpot sensor on the ecu and is for the d16a9.

the ZC redline is 7200 when hot, not 7500 for the person that said that...just because the PG7 has a higher FUEL CUTOFF...doesnt mean that you rev up to it...this is how engines die and you ask questions why it happened...

D16A9- non cat. convertor and doesnt use an o2 sensor so it has a CO sensor with the ECU (cant use it)
D16A8- with. cat. convertor and use an o2 sensor. we can use the ECU from it...


Modified by crxgator at 10:34 AM 2/9/2004

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RussHondaCRXVtec &raquo;</TD></TR><TR><TD CLASS="quote">Why don't you get a real motor like.... a B-series</TD></TR></TABLE>

Why don't you upgrade for a K serie ? sucker (N)

 

(Why don't you get a real motor like.... a B-series)


why dont you take the **** out of your mouth!!!!!!!!!!!!!!

 

I have a chipped PM6 with a PM7 spoon chip for sale if you want it.

I'm gonna run a PM7 ecu with my rev/speed meter to cutt off the speed limiter.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RussHondaCRXVtec &raquo;</TD></TR><TR><TD CLASS="quote">Why don't you get a real motor like.... a B-series</TD></TR></TABLE>You know, I have a B16 in my rex, and I agree that this is an assinine statement. Can we all get past our egos and actually try to help people with their questions or shut the **** up please? This **** is getting ridiculous. Why respond if you aren't going to help? I mean what ******* point is there? So you can try to look funny? Who gives a **** if you're funny? Any ******* can be funny on the internet when they have all the time in the world to think up a clever and witty response...but responding with retarded replies that do nothing to help the creator of the thread is just that; retarded.

 

I agree, we are here to fix up our cars and have some fun. Alot of people have ego problems on here. I have a EDM 89 CRX with a ZC and it has the normal bolt ons. The revlimiter on mine is around 7600. I swear it has went to 8 at times. The ZC engine has alot of potential. I havent seen too many people over here in Germany blow them so easily like the B series engines. I have over 190,000 km on mine and it is still strong as hell and doesnt burn a drop of oil. The key is regular valve adjustments and tune ups as well as regular oil changes. I have a spare engine I am thinkin of building up for fun just to see what it can realy take.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RussHondaCRXVtec &raquo;</TD></TR><TR><TD CLASS="quote">Why don't you get a real motor like.... a B-series</TD></TR></TABLE>

lol i love that argument...i'd rather have a ZC over any b-series any day of the week. Cost for the swap is cheaper then a b-series and every thing else with it just falls into place....only wish someone actually produced cams for the damn thing.

 

Gude makes a set of cams, as well as some other companies. Keep searching. Dont give up.

 

jdm dohc zc redline is 7500 can go to 7800(referecne: Honda /Acura Engine Performance by Mike Kojima, page 82. for you that have questions), using the jdm zc ecu, but most people use the si ecu and dont get full potential. i noticed when i was running my zc with the si ecu i noticed that power was still being made but cut off and or restricted by the si's ecu.....

deff use the zc ecu or run a chipped computer... safely go to 7500


i believe the integra's pg7 would do the trick(not 100 percent on the pg7)

 

ill probably get flamed for this, but i have hadthe best results with a 90 integra ls chipped ecu. runs much harder than the 89 teg an crxsi

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99EKhatch &raquo;</TD></TR><TR><TD CLASS="quote">jdm dohc zc redline is 7500 can go to 7800(referecne: Honda /Acura Engine Performance by Mike Kojima, page 82. for you that have questions), using the jdm zc ecu, but most people use the si ecu and dont get full potential. i noticed when i was running my zc with the si ecu i noticed that power was still being made but cut off and or restricted by the si's ecu.....

deff use the zc ecu or run a chipped computer... safely go to 7500


i believe the integra's pg7 would do the trick(not 100 percent on the pg7)</TD></TR></TABLE>

guy, the ZC redline i dont ******* care if its from japan or ******* africa, its 7200RPM...the fuel cutoff is 7500, it doesnt mean you ******* rev up to 7800 becasue of a PG7, get it in your brain and stop giving out stupid info...look on a dam gauge cluster...

 

idc wtf you say....the fuel cut off is not at 7500, thats the redline and yes you can take it to 7800...do you have proof to back what ur saying up?


because i do

 

and it only redlines there bc of the ecu your using...so if ur using a si ecu then odviously if your looking at your tach thats where its gunna stop...so i dont get your point there...wherever you ecu is set to cut off at thats where your tach will be......


and you need to talk to people with respect, just bc you have more post then me doesnt mean you have to insult me...

you need to grow up its people like you who make this board dumb.....

so get off your high horse and lissen to someone for once instead of thinking your always right...

and please dont say o yea and call me more names and try to make me look dumb bc im not gunna wast the thread on something stupid, thats not what honda-tech is for...its for learning

 

so using your "logic" if you can use a PG7 and rev up to 7800 on a stock ZC...then if i chip a PR3 with a 9500 cut-off, i can rev that high on a stock b16a...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99EKhatch &raquo;</TD></TR><TR><TD CLASS="quote">and it only redlines there bc of the ecu your using...


and you need to talk to people with respect, just bc you have more post then me doesnt mean you have to insult me...

you need to grow up its people like you who make this board dumb.....

so get off your high horse and lissen to someone for once instead of thinking your always right...

and please done say o yea and call me more names and try to make me look dumb bc im not gunna wast the thread on something stupid, thats not what honda-tech is for...its for learning</TD></TR></TABLE>

wtf, i didnt mention anything about posts...something your concerned about? Insult you how? Do you get offended really easy?

its people like you, who give the wrong info make this board dumb...

I never said i was always right...why are you assuming...i ask questions about stuff i dont know as well...

again, what names did i call you?