Fuel pump upgrades

[91TurboJoe]

Im new with the 91 MR2's and i was wondering how i could upgrade my fuel system, what is the best way to do it, im worried its getting messed up, cause im running stock fuel system with a t3/t4 at 52 trim, im not real sure (sorry if i sound newbish) also i was wondering what kind of injectors are possible to put in just a few dumb questions thanks for the help

[MR2Jedi]

550cc Supra Injectors go right in. So does the Supra fuel pump. I think impedence has to be altered but not positive. the Walbro 255lph fuel pump works well too.

[JekylandHyde]

How boost are you running?
Do you know how much power you are running?

Increasing fuel before it is needed is a quick and easy way to screw up the running condition of your car. The MR2 is "over fueled" from the factory and you can safely squeeze a healthy amount of power out of the OEM system before you need to upgrade.

If you do need to upgrade, you can buy a little more space with the Supra 550 injectors, but if you want over 340 rwhp or so, you are going to need even bigger.

The Walbro pump is great or you can try to findd a Supra pump.

I would consult with these folks:
http://www.wolfkatz.com/

Tell them "jekylandhyde" sent you.
They will take care of you