I have an intake, exhaust, voltage kit, and underdrive pulley, would I benefit from getting a perrin fuel rail. With the intake I am getting more air into the enigne, in theory if I added more fuel to the equation with more air I should be making more power. Any opinions? Thanks guys.

I have an intake, exhaust, voltage kit, and underdrive pulley, would I benefit from getting a perrin fuel rail. With the intake I am getting more air into the enigne, in theory if I added more fuel to the equation with more air I should be making more power. Any opinions? Thanks guys.

I wouldnt even consider messing with your fuel system until you decided to go the Forced Induction road. There really is no reason to do it, the stock setup will give you plenty of fuel for what you have. Now if you decided to run new pistons and port and polish the head, then you could get emanage to help with the fuel flow and some other things.

Proshop knows what he's talking about.

i have a bit more mods than you (still N/A though), and i don't think there is any need to get a higher flow fuel pump or rail. it will just eat up your gas and make you waste money.

now, i am thinking about boosting in a year or two, and that's when more fuel supply will be a real issue.

otherwise, don't worry about fuel supply.

cool, thanks guys.

If you look at some of the posts from Rollhard, he just upgraded his fuel system. He is running an intercooled Greddy turbo with custom tuned e-manage. Even after doing quite a bit of tweaking to his e-manage he was still running quite rich with the Perrin fuel rail and 330cc injectors. And that was running almost 8 psi of boost!

I think his conclusion was that the stock rail and injectors are actually better suited to mild forced induction. The stock stuff had plenty of head room for pretty much every aftermarket forced induction kit (in factory configuration) on the market today. The upgraded fuel system wouldn't even be needed until you really bumped up the boost. And then you would need to upgrade your internals to handle the boost at the same time.

Bottom line? Skip the upgraded fuel system until you are ready to spend the big bucks on a complete tear down and custom turbo setup.