cam & OBDII

[jredhonn]

i was reading a book called " honda/acura engine performance" by mike kojima, in the cam section it says " 265 degrees of duration, 0.420" lift, 30 drgrees of overlap--- a good street cam, pulls good from 4000-7500 rpm, slight lope to idle. idle at about 900rpm. might pass a smog test. might work with OBDII......most people should stop here."

i have 2 questions.

a. why it states " might work with OBDII"?
b. why "most people should stop here"?

thank you very much

[gimmezell]

I have a Crower Stage 2, but I'm converted to OBD1. Once I installed the cam I tried to hook up the stock ECU for fun. It would idle for a bit then it died eventually.

[jredhonn]

thanks for the reply.

do you mean i have to convert to OBDI in order to get it work?

[jredhonn]

btw, that's what i was thinking to use too--- crower stage 2 :wink:

[20civic00]

you could tune with a a/f controller....not that great but it'll do the job and you dont need to go obd1 to use it

[MotoXracerfss]

Stage 1 cams are good with OBDII, aren't they?

[shifty35]

So long as your OBD2 ECU doesn't see fit to set any error codes, I don't see why a little dizzy / FPR tweaking shouldn't get it in good running shape, stage 1 or 2.

[Belette]

you can pass smog test anyways you're obd1.

This cam sounds somewhat rough with stock ecu and stock engine. Some more upgrades should be nice.

[shifty35]

you can pass smog test anyways you're obd1.

This cam sounds somewhat rough with stock ecu and stock engine. Some more upgrades should be nice.

Depends on where you live. To pass emissions, I have to pass a OBD2 port scan... no OBD2, no pass.

[92vxpower]

ok i have a d15z1 motor with a 98 ex tranny stage 1 clutch full msd set up. h/i/e 95 si manifold , chipped ecu and a adj camgear. but i think my car should b faster. i was wondering if the head off my motor is any good. i have a z6 block wit high compression pistons ready 2 go in. should i just put the d15z1 head or would it b a waste?

[Belette]

Depends on where you live. To pass emissions, I have to pass a OBD2 port scan... no OBD2, no pass.

I got 0bd1 converversion, but port scan is still obd2.

[shifty35]

I got 0bd1 converversion, but port scan is still obd2.

Without an OBD2 ECU hooked up in your car, you will fail an OBD2 port scan. The OBD1 ECU will not respond to a port scan.

[zex_cool]

ok i have a d15z1 motor with a 98 ex tranny stage 1 clutch full msd set up. h/i/e 95 si manifold , chipped ecu and a adj camgear. but i think my car should b faster. i was wondering if the head off my motor is any good. i have a z6 block wit high compression pistons ready 2 go in. should i just put the d15z1 head or would it b a waste?

have you seen the size of the ports on that z1 head ? thats shit is small as fuck !

what kind of high comp pistons are you talking about ? your head and a high comp pistons in a z6 block will yield astronomically HIGH comp ! with stock p28 pistons it would be around 11.0:1 with lets say PM6 pistons it would be 13.1:1, so you see that the z1 head is trash. the only good thing that it has is roller rocker arms and thats about it.

[sohcvtec420]

So long as your OBD2 ECU doesn't see fit to set any error codes, I don't see why a little dizzy / FPR tweaking shouldn't get it in good running shape, stage 1 or 2.

I'm running a crower stg 2 just like Gimmezell, too. I ran it with my stock P2p in my 98 ex. The head was shaved and I had a stock cam gear on the original install, so we had to advance the dizzy all the way it could go. But it idled and ran fine.
I'm actually running it now with an OBD2 P72 from a GSR, and it's fine.

Bottom line, if you can't get your hands on a tunable ecu, then with a little fine tuning should run a bigger cam just fine.

[sohcvtec420]

Without an OBD2 ECU hooked up in your car, you will fail an OBD2 port scan. The OBD1 ECU will not respond to a port scan.

That too