Hey i just installed a walbro 255lhp fuel pump in my 1990 tII...im also installing a apex'i fuel controller tommorow..... wondering if u guys think that a Fuel Pressure Regulator is needed? yes or no plz state ur reason!

 

no

 

good reason

 

thanks for the response but plz reason would be nice i kinda like to understand things!

 

what kind of mods do you have? If you are stock, you dont need an FPR. You have enough fuel already.

 

I got complete RB exhaust, K&N intake, F.C.D, walbro 255lhp fuel pump, greddy EGT gauge and boost, greddy turbo timer, apex'i fuel controller, t3/t4 turbo

 

You don't need a new FPR because the stock one is still doing its job fine. Why do you think you need one?

Your thinking on FPR's is backwards. An undersized FPR gives you too much fuel pressure, not too little.

 

well when do i need one then? when do u think its important to upgrade?

 

Actually, I was thinking of like a RR FPR. But whatever..

 

Not all aftermarket FPR's are rising-rate.

 

change it when you get a standalone....

stock one works fine. increasing fuel pressure is not the correct way to add fuel. get bigger injectors.