so here is what I am planning to run in the next few months:

V1 S/C kit
Full exhuast, including cattman headers...all way back including muffler, cat etc.
custom CAI for the S/C
MEVI
3.125" pulley

I know for sure that I wouldn't feel comfortable running 100psi of fuel pressure at peak boost even if it is for such a short while using my stock injectors and a FMU...the solution seems to be, to run 370cc injectors which I have no problem running...every maxima on here is just bolting them right in and the car runs fine as soon as you raise the base FP...so I guess my question is, should I stick with getting the JWT S/C program with 370's programmed in and then fix the leaning up top with a cartech fmu...or should I get a Z32 maf which a friend of mine will give me for free??? I am only worried about doing this setup b/c many org'ers are having problems running this program and the Z32 maf...most likely a wiring problem, but nonetheless, a headache from what I am reading plus, if you get it programmed in, you can't use the A32 maf which sux incase you can't get the Z32 maf to work properly....

the idea of a completely flow-referenced setup is appealing...but I am wondering if then you wouldn't need a fmu at all with the Z32maf and 370cc JWT S/C program...then I could just use a SAFC for tuning (a much easier solution)...cause with that setup listed above, I would think you wouldn't max out the maf or 370's therefore you could use a SAFC to richen out the up top leaness that JWT S/C program owners are seeing

so I am thinking, maybe I could have JWT program in the S/C program with 370's in mind and have them set the A/F ratio's I want up top as slightly richer than they seem to have made it, all of which the 370's are capable of supporting...at only 11psi or so....

 

See my threads on this exact issue.

Using an adjustable Cartech FMU should allow much more range in tuning up.down while the SAFC will allow for finer tuning....but with the A32 MAF and no FMU you will lean out up top above 11PSI or so. In that scenario, (above 11PSI) - since the MAF voltage is maxed then the AFC won't do jack. But at 11PSI you SHOULD be OK (not sure on that since I went from 7PSI to 14 without blinking)

So - in short - my advice is run the A32 MAF, JWT Program and Cartech Adjustable FMU. Get the AFC later if you wish to tune even finer.

After some hard thinking, I've given up on making the Z32 work because I feel the FMU is a better solution anyway.

Stephen Max and Delio and I worked out that in my case it's not wiring. It's something else, possibly the chip I'm running (although I still doubt that) and possibly just that the gods hate me. Dont' really care anymore since I have a spare Cartech sitting around anyway.

IanS

 

so with only a 3.125 pulley, raised rev limiter, a32 maf and 370's, and mevi, you think I would run okay up top and not lean out with the JWT S/C program?

 

so then I still wouldn't need a fmu, just a safc for tuning everywhere else in the powerband where the maf isn't maxed out...

 

I honestly don't know if you'd lean out or not. I wouldn't risk it tho.

FMU - yes
AFC for finer tuning down low - yes.

IanS

 

sounds good to me...don't think I want the headaches of the Z32 maf, even I would be getting it for free...cause then I would have only a stock ecu besides the one I would be sending to JWT..and the A32 maf wouldn't work to well at all with a Z32 maf program...although I like the idea of a completely flow referenced system and therefore would not need a safc or fmu....I guess this is all a game of trade-offs and crossing your fingers....

 

Neither.

I'd spend the money on an eManage and just run the stock A32 ECU with Z32 MAF/injectors.