[Dren]

I must say, the car feels quite a bit quicker with the conversion. I was running a VAFC over my PM6 ECU for a while and then I sold the VAFC and just ran the PM6. I had my dizzy pretty far advanced to get the car to run half way decent. I am not convinced that the OBD0 dizzy lines up (using the top bolt slot) just like the OBD1 dizzy does.

I uploaded a stock D16Z6 map onto my ostrich and pluged it into a PO6 modded ECU and away I went. I'm running a wide band LC-1 too. I do not have VeeeTak hooked up yet because I am waiting on the VTEC male plugs. I may just ghetto fab something first off for the time being. I am getting a check engine light, so my guess is it is the VTEC oil temp signal not being sent to the ECU. If not...then I have some work to do.

I initially had some pinging with the dizzy slightly advanced in the higher RPMs so I dialed back the dizzy and now it is maybe a degree or two retarded without pinging. The car runs great so far. Now I need to set-up the data logging and get a good tune.

For all of you who are running mini-me set-ups, I highly recommend converting to OBD1. It was quite noticeable which was suprising. I am running around 12.1 compression so it might have really helped with the better fuel maps in the D16Z6, but then again I don't know how they compare to the PM6 maps. This is without VTEC too. So hopefully it'll bump things up a little more when I hook up VeeTak.

 

[jfrolang]

I'll concur with the recommendation to convert to OBD-1. Not from experience, but if you want the best performance from 92 or newer components, you have to. There's no way a V-AFC or anything similar will ever run an engine as well as a stock Honda ECU in the appropriate diagnostic environment.

 

[jmart]

Dren, what pistons are you using in there? a1?

 

[Dren]

They are the high compression flat top pistons. Not the domed ones but the flat top ones found in the Integra before the dome pistons. They both have the same CR or close to it.

 

[jmart]

hmmm, interesting. Aside from the compression ratio, a different style of piston top will change the flame propogation and heat transfer characteristics during combustion. Flat should be better for heat transfer; less surface area means less heat transfer out of the combustion chamber. I should look up in my IC engines bible about the effect of flat top versus dome for flame propogation.
Anyway, ya, I'm a tool.