ok as of now in my 91 CRX Si i'm running a mini me with a Y8. i've got my stock ECU with a Zdyne 1 wire conversion. the car runs great and it has good power. but i'm going to do a full Z6 swap this winter. the motor will more or less be fully built, high compression, cam, head work. i'm thinking about converting to a P28 ECU. just looking for some opinions here on what would be the better route.

 

Definitely convert to OBD-1. I'm just about ready to convert my CRX to a P28, once the this guy finishes chipping my ECU.

I've been playing around with P28 and PM6 fuel/timing maps. The P28 lo and hi fuel and timing maps are much more aggressive than the PM6. The P28 was designed with SOHC VTEC in mind - you will get more power, no question about it.

There are also other benefits - a newer distributor and a 4-wire O2 sensor. The OEM Z6 O2 sensor is very sensitive, but very expensive. This is a big benefit for tuning while on the street.

Worth the $$$, time and effort IMHO.

I'll be posting the differences I notice on my setup once I finish the OBD-1 conversion.

 

I would never suggest a SOHC VTEC swap without a OBD 1 P28 conversion.
You get the benifit of a properly running motor and tons of support for the motor and ECU.

 

Old Dirty Bastard 1?

j/k, I couldn't resist.....

But yes, p28 (hondata if you have the loot) is the way to go!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Black R &raquo;</TD></TR><TR><TD CLASS="quote">Old Dirty Bastard 1?

j/k, I couldn't resist.....
</TD></TR></TABLE>

Thinking the same thing.....

 

my zdyne ECU is supposed to have the VTEC fuel and ignition maps. but it looks like i will end up converting to the P28. which is the best way to convert? , i see Boomslang has them for $125 shipped. thanks guys