Help with 400whp bulid

[Charlie240sxt]

Ok my buddy that has a redtop in coupe is aimming over 400whp range and asked me what all he needs to get there. Not knowing as much about the Sr as i do the Ka i am posting this.What would you guys run for a say 450whp bulid.

I saw the post just down the list but i was wanting abit more info and the search still kinda off.

[s13sr20chris]

just mail your engine and credit card to phase2 or heavy throttle or another sponsor. j/k

i would say forged pistons, stock rods(maybe with cryo and stot peen), arp studs, metal head gasket, swaintech coat head/valves/pistons, new bearings and other rebuild stuff.

then you need fuel control, big honkin turbo, good size intercooler, strong clutch, etc.

[Charlie240sxt]

He has the Huge turbo and 3.74 inch catback and vary large fmic really what i am looking for is cams and head work this is a stock bottem end beast

[s13sr20chris]

well, as long as the turbine is fairly large you can run some big fat cams. get some jwt s4's or better yet something from our sponsors.

[cheez80]

i just talked to wayne today about hitting approx. 400-ish whp; he told me:gt-rscheap ebay manifoldhks step 1reputably tuned powerfc or the likeobviously, intercooler, exhaustheadgasketRASvalve springs740-850cc injectors

and related stuff.

he said that greddy intake plenum was not needed at that level of hp.

anyway, have fun

[s13sr20chris]

i believe thats true. the stock plenum should be fine. really, why spend $400 on a plenum to get a couple hp when you could have the whole top end of your motor swaintech coated for that.

[Charlie240sxt]

forgot he allready has the IM top mount and what not.

[gpeele]

im building a similar setup now but im stuck on clutch options. what should i choose for trouble free ops at this power level. i like the twin disk setups with the flywheel included.
Modified by gpeele at 5:10 PM 12/21/2004

[s13sr20chris]

im building a similar setup now but im stuck on clutch options. what should i choose for trouble free ops at this power level. i like the twin disk setups with the flywheel included.

$$$

i like twin disk setups too. the only one i have driven was on a 350z and it was hard to drive.

[VitaminT]

i just talked to wayne today about hitting approx. 400-ish whp; he told me:gt-rscheap ebay manifoldhks step 1reputably tuned powerfc or the likeobviously, intercooler, exhaustheadgasketRASvalve springs740-850cc injectors

and related stuff.

he said that greddy intake plenum was not needed at that level of hp.

anyway, have fun

.

I would like to see it if you are able to get 400whp out of the GT-RS. I am betting more like 350. Especially without a turbine outlet and short runner intake mani.

Not to knock the setup (I like it personally), I just don't think it will hit that number.

[Nismo_Freak]

.

I would like to see it if you are able to get 400whp out of the GT-RS. I am betting more like 350. Especially without a turbine outlet and short runner intake mani.

Not to knock the setup (I like it personally), I just don't think it will hit that number.

HKS rates the GT-RS at 400ps. It will hit that and some.

[Nismo_Freak]

Unless your friend wants to rely on pushing alot of boost pressure to make power I'd suggest the following:

GT3071RFullrace ManifoldTomei 264/264D Jetro PFC + DatalogitTomei/Apexi MHG ~1.4mm Tomei RASTomei Dual Rate Valve Springs w/ RetainersSard 850cc InjectorsGreddy Intake PlenumGreddy Type-R BOV

Better parts, better setup IMO.

[VitaminT]

I like the sound of that setup.