Just finished a build for a friend of mine who wanted 500whp with the least possible boost and highest possible torque for a nice street motor. Tried the F25C route

Specs:
F20C block resleeved
K24 crank 99mm
Crower custom rods
Wiseco 89mm pistons 9.5:1
Toda A2 cams
SuperTech Valvetrain
Custom turbo kit, GT35R 0.63AR
AEM EMS, bosch 1000cc injectors, walbro, hondata 4bar MAP

 

Cool stuff man! That powerband seems pretty solid.

 

full boost at 4000rpm on a just 6sec pass! GT35R under heavy load, reaches full boost at 3300! I have never seen that again from a 4 cylinder engine

 

That's awesome. I'd always wondered how a setup like that would dyno out.

 

wow, 13PSI only??
is that WHP?

 

Yes, actually hub HP. Dynapack, correction factor 1.00, just a 6 sec pass on a very warm day. Peak boost was 192kpa = 13.5psi, dropping to 188kpa = 12.95psi at 8200. Rev limiter was set at 8500 although it could be higher but just to be on the safe side for a stroker street motor very frequently driven.

 

Very nice numbers

It's good to see some more turbo'ed S in Europe and a knowledged shop to deal with!

Congratulations for the awesome curves with that low psi!

 

mind sharing how much the rods cost?

 

Sick!

 

Don't remember exactly. Not cheap though. I think around 700 euros including shipping and import taxes. I have always in stock 1-2 sets because lead time is about 2 months + shipping from US and custom's clearance (close to three months!)