So I am going to get my car dyno tuned finally this Friday. I have been waiting a couple months and Its finally happening. I want to get it tuned on 25psi (spike) and hopefully hold somewhere around 21 by redline. (stock 8 turbo with 9.8 hotside) I want to know though is it safe enough on the stock fuel pump? I really dont know what the stock pumps are able to flow (safely atleast) If I cant run 25 psi what can I run? I want to try and get a mid 12 second pass in a couple weeks at our last test and tune night. That's really my main goal for now. After I achieve that I'm going to save for a Fp green, injectors, pump, and tubular manifold. Hopefully with that set-up Ill be mid-low 11's.. Just taking baby steps haha.

-Mods are in my sig.

Thanks for any help

 

No, get a fuel pump. You can pick up a walbro 255 for like $75 now & it can be installed in 30 mins. I'm surprised the tuner didn't tell you to put one in before the tune.

 

Get a fuel pump. Probably one of easiest and best things you can do for your evo.

 

+1 Fuel pumps are very easy and simple to install. I know you can pick one up every where for like $99.

 

As everyone else said, a fuel pump. If you have the cash after that, a set of moderate injectors will really help also. Your weakest like after that will be the turbo with that small hotside.

 

Not knowing your driving habits, if you plan to run 25 psi you will eventually blow the head gasket if you don't get some head studs.

Do not run more than 21psi until you upgrade the stock bolts.

 

Entirely not true. I ran 27psi on stock head bolts for several thousand miles and ran through the gears many many times. Boost does not cause the head to lift, a poor tune causes it.

 

Ok thanks for the replys. I will pick up a fuel pump and hopefully get it by friday!