AEM Infinity or Pro EFI to control a turbo S54? Saad Racing built Precision 6766 turbocharged and Pro EFI controlled E46 M3 S54 shows 667 whp on 11 psi

[Sticky]

My e46 m3 runs an AEM Infinity- it has been flawless thus far. The tuning was top notch- and needless to say, it feels smoother than stock even though the car puts down > 700whp on e85.

It doesn't matter if it is Pro EFI or AEM Infinity, the tuning is more important than what box.

Good stuff.

[folgrz]

I can't find any threads that support your claim that Motec offers FlexFuel... In fact I actually found several threads that state the M800 and M1 do not support FlexFuel sensors. It's not an issue with the Motec's processing ability, they just don't support it.

Now that doesn't mean you can't tune for E85/E98, it just means you can run whatever blend you want and let the EMS auto adjust.

Both the M1 and M880 ecu offer flex fuel. You just have to pay for that feature to be unlocked. Tim has his M880 fully unlocked and it is an option on that ECU.

[Hexer]

Hy, we use VEMS for s54 engine, dough need rewiring has all the race car features, LC, ALS, swopping tunes, dual lambda for na.
But the biggest importance is the tune, the tuner will make all the difference not the safety stuff.