Got an 04 sti and looking for 400/400. Scooby projects do my work on my car, it has uprated brakes, 3" graham good sport cat exhaust, coilovers, anti lift kit, anti roll bar, cosworth air filter, walbro fuel pump. Considering getting front mount and oil carch tank. If this all gets mapped by the legend bob rawle what power will I see and what will it need to get to near what I want. What's the most you guys are running on standard turbo??

Thanks in advance

 

Think the oe turbo is a vf35 in which case 310-340 is to be expected

 

You`re gonna be looking around the 340/340 i reckon on your VF35, Obviously not an exact figure but a good average, If you want 400 you`ll need a bigger turbo either a sc42/SC46 or an MD321T or V and a fuel pressure regulator to be on the safe side all very acheivable on your current top mount but could be bettered with a front mount, You shouldnt need a front mount with you current set up but it depends on which way you want to go with it.

 

Just copied this from Andy Forrest website might help you out

01-05 STI 2.0 UK/EURO + 01/02 JDM STI /RA STD 265 BHP


Level 1 300-330 bhp

Sportscat exhaust from turbo back 2.5 or 3” bore
Walbro 255 l/hr uprated fuel pump
K+N panel filter
Ecutek custom remap
Twin boost set up for high/low power switchable in-car


Level 2 310-340 bhp

Full Decat turbo back 2.5 " or 3” bore
Walbro 255 l/hr uprated fuel pump
K+N panel filter
Ecutek custom remap
Twin boost set up for high/low power switchable in-car
NGK PFR 7B uprated spark plugs

Level 3 360-390 bhp

Full Decat turbo back 3” bore exhaust system
Tubular exhaust headers and flow matched uppipe
Walbro 255 l/hr uprated fuel pump
K+N panel filter
Ecutek custom remap
Twin boost set up for high/low power switchable in-car
NGK PFR 7B uprated spark plugs
Fuel Lab turbo specification fuel pressure regulator with fitting kit & gauge
AFP 05-20G custom turbo charger modified to fit with tgv delete


Level 4 390-410 bhp

Full Decat turbo back 3” bore exhaust system
Tubular exhaust headers and flow matched uppipe
Walbro 255 l/hr uprated fuel pump
Ecutek custom remap
Twin boost set up for high/low power switchable in-car
NGK PFR 7B uprated spark plugs
Twin port 650cc Injectors
Custom cold air induction
AFP 321H custom turbocharger with fitting kit


Level 5 420-460 bhp

Full Decat turbo back 3” bore exhaust system
Tubular exhaust headers and flow matched uppipe
Walbro 255 l/hr uprated fuel pump
Ecutek custom remap
Twin boost set up for high/low power switchable in-car
Fuel Lab turbo specification fuel pressure regulator with fitting kit & gauge
Twin port 650cc Injectors
Custom cold air induction
AFP 321T custom turbocharger with fitting kit
AVCR boost controller
FMIC (Optional)
NGK racing 8 spark plugs

Note For Level 5 we would recommend uprated steel rods & forged pistons and an uprated clutch.

 

just had mine tweaked by Jolly Green Monster, third highest recorded run on standard turbo/engine, 352bhp 349fFtlb. You will defo need turbo lol

 

My STI (JDM hawk) is running 400/400 with 800cc injectors, uprated fuel pump, Litchfield LM400 twin scroll, custom exhaust and a remap!

Pulls like a train in any gear thanks to the twin scroll

 

That's a great result.
To the OP, you will need cash to get 400

 

You need a turbo and injectors mate
I'd recommend sc 36 42 46 all can do near 400 with meth if you wanna keep spool