kam

hey bros, i'am think of going to a bigger fuel pump for now to prevent any detonation, because i dont have the money to get an upgraded ecu, i was wondering if i will be protected from running lean with a bigger fuel pump

the_saint

Hello Fellow Canadian.

What other modifications do you have or have you done?

A higher flowing fuel pump will not prevent detonation. I would spend the money on an upgraded ECU/EFI PMS/Apexi PFC, it is much cheaper than a new motor. Even with ECU mods it is possible to blow your motor.

the_saint

kam

yeah my mods are just a down pipe and midpipe

the_saint

How much boost are you running? Do you have any problems keeping your boost in check? I wouldn't run more than 10 psi of boost without any mods to your ECU, otherwise you will run into fuel cutoff, or excessively high pressures and experience a wonderful case of detonation.

the_saint

dis1

With no cat back or intake you should be safe but it still depends on boost. That combo can produce nasty spikes along with boost creep. Also a fuel pump can cause a rich condition because contrary to common sense a fuel pump will increase fuel flow regardless of your ECU. (One would think it would just increase max fuel potential.) If I were you I would be careful. It's better to take things slow than to haphazardly throw upgrades on to your car. If you decide to go with just a pump get a dyno tune by a reputable Rotary shop to make sure you are safe.

kam

the boost levels i'am running at is 10 pounds