Hay guys, I got a friend he just bought a 93' rx-7, he knows less to nothing about these cars...I had to instruct him in the way of the rx-7...anywayz...this is what he has:

4000 miles on a brand new street ported engine
single t66 turbo running 9 psi
griffin radiator + greddy intercooler
a/f pressure regulator
apexi commander


now the problem is, we were on I-95 the other night testing this car out (he only had it for about 2 days) and he slowly starts floors it in 2nd, just when we get on...it hits about 4500rpm and you can feel the big *** turbo spool and all of a sudden it boggs!!! just starts boggin!! he freaks out, I tell him to upshift and slowly hit the throttle...now he doesn't just shove the pedal to to the floor, but he slowly pushs it down, never reaching WOT...now I tihnk it's cuz he didn't floor it, in turn not letting enough fuel into the motor...I think the commander is setup to let enough fuel into the motor at WOT...I dunno cuz neither of us know how the commander is setup...ANY suggestions or thoughts would be GREAT!! Thanks in advanced.

 

Where's the upgraded injectors and fuel pump? anyhow, if no other answer there is a "single turbo" section where you may get a better response.