Hi there,
last season I had no more battery and had to bypass my fd. After driving her warm I recognized that from 3500rpm on it does not pull anymore, even though the turbo spools and engine revs up. There is simply no more power. Unfortunately here in Switzerland Rx7 are extremely rare and almost no one is able to work on them - especially on modified models. Anyway my mechanic thinks it has to be the mapping which the PFC somehow forgot above 3500rpm. He checked all tubes and the turbos as well and they are all fine. I have following modifications: SMIC, radiator, 25row twin oilcoolers, Cold air intake, downpipe and cat back, PFC with commander - it made 368hp on the wheels with it's stock twin turbo. Can someone of you might provide me a map which I could compare to the one it runs now? To figure out if it really is the mapping or does anyone has any idea what else it could be? Many thanks for your help!

 

You haven't provided any logs or your map and you expect others to share a map?

thewird

 

I have seen this happen only twice in 20 years of being in the FD community.

One was caused by something wrong in the owners wore out badly frayed engine harness after a rebuild. He did not want to spend the money for a new harness. When he installed a new harness, the problem went away.

Another was with the wrong map sensor setup.

 

without a map and at least some logs of street driving, there's not much we can do for you.