What gains should I get with the following mods:

Fujita F5 Intake w/ all ICP's
A'pexi full race exhaust w/ down pipe
HKS 272 intake & exhaust cams
Megan Racing Manifold
HKS Boost Controler
Walbro 255 Fuel Pump
AMS FMIC
ECU Flash


What other mods will I need or should I get to reach 400hp?

EDIT:Would a Apexi AFC Neo Air Fuel Controller help me see gains and will it work without problems with th HKS EVC VI?

 

I wouldn't worry about getting the megan manifold seeing as though the gains would be the same as a ported stock manifold and it will eventually crack on you. Do you have 93 in Chicago? If so I would say that you would be in the 340 range on a dynojet.

 

Yes we have 93 in Chicago, the manifold is already installed in the vehicle. I am in Iraq right now and will return home soon. I want to get some ideas as to what type of gains im looking at.

 

if your looking for 400 on pump only, then a bigger turbo will be needed without question.

 

I want to get as close as possible without changing the turbo right now

 

then throw some meth in there and run really high boost but its really hard for the evo 8 turbo to pump that much hp out. get a cheap used 9 turbo and meth i would say if you wanna be at 400whp. id say with ur mods u will be at 330-350

 

what psi were u thinking of running at?

 

Around 20 if I can without any problems.

 

I am very experienced with dyno numbers but 20 seems to be low however if u do obtain those numbers on 20 psi with 93 octain then i thinks ur mods should bea sticky
goodluck,

 

What should I run then? What is a good number to run on a stock turbo for the most possible gains?

 

would luv to u give u the magic number man but i really don't know myself , iam learning and benefiting from ur thread as well, but looking at some of the other set ups and dyno numbers on here , it seems like around 23psi is a safe range that would put u around 350whp based on a flash, intake, tbe, and some ic pipings.

 

On a stock turbo on 93 octane you can fairly high depending on the competency of your tuner. Just be sure that anything over 24-25 psi you install headstuds. I've seen evos on the stock turbo on 93 going up as far as 27 psi, maybe even higher. If you can, go E85; I'm currently tuned on E85 and on my stock IX turbo I'm making 425/400 at 29 psi.

 

have u changed any of the internals?

 

nope stock internals are good until around 500whp

 

wow that's sweet! iam betting that's cuz ur using E85 correct? could it be done with Meth? sorry if iam drifting off topic but i was just wondering.
thanks,