Jims5543

If you were running too lean your engine would be breaking up and popping, backfiring and loosing power at high RPM. If your car is pulling strong and running strong I would have to wonder if your not getting bad readings?





You need to verify your LM-1 is correct for starters. Nearest Dyno?



You do know that after a certain amount of time you need to replace the sensor on it?

zRotary

the sensor is new, and placed bevor the testpipe, in a saver place then directly behind the turbo.



well, the car wont be popping or something like that around 14.8 AFR, but thats not good for a rotary to go that high in mixture and under boost.. the engine wont make it long with such afr over 0 boost.

Jims5543

Your right it will not be popping at 14.8 afr.



I am sorry I have no answer for you, it seems to be a Power FC problem and I am no expert on them.



Try posting over in the ECU section under Power FC section.



Good luck!!

zRotary

uhm.. well!

do you have any suggestions to fuelpumps and regulators for up to 480whp? Is it necessary to have "the best" one? just want to hear a few suggestions..

Racingbeat offers Mellory fuelPump and regulator for a reasonable price.. well thats my first thought, dont know how good they are.

RX7 13B 4 UR AZZ

Aeromotive a1000 and a Aeromotive Pro-Series Boost Reference EFI Fuel Pressure Regulator should give you all the fuel you need but you are looking at close to $600 for the combo not including lines and fittings. I got a slightly used A1000 for $100 and the regulator i bought new.