When I bought my car, it came with two computers, and I'm looking for advice as to which computer to run. It is a stock TGP 1991 CRX Si (air box/stock exhaust) with a SOHC ZC non-VTEC swap (basically an a6 with bigger cam to my understanding. It came with the pm6 sitting in the back seat, and the pg7 installed already. I know all about what each computer is from and all that, but any searches relating to ZC's and pg7's leads to DOHC swap questions. I'm looking to see what you guys would choose for a daily driven single cam, based on fuel efficiency and performance. I'd like to hear your arguments for both.

So what do you think?

 

PM6 is for a SOHC D16a6
PG7 is for a DOHC D16A1

if the motor is stock as you say, then just use the PM6. using the PG7 will only cause in you using more fuel since it is a DOHC motor.

 

the sohc zc has a different exhaust manifold than the a6, same cam though. i would run the pm6.

 

Oh i see. I was under the impression that it was the cam having a longer duration/higher lift on the exhaust side that gave the zc the extra gain over the a6

 

Pm6