I have a sohc motor that i am going for 390-410 WHP. Hope i can get it with the setup i am about to run.
Eagle Rods
Over size Vitara Piston
ARP Head Stud
ARP Rod Bolt
Cometic Head Gasket
BlockGuard
Reenforce sleeve
T3/T4 Turbo .50/.48
3 stage Vtec Head
ZC block
Microtech Standalone Managment
Aquamist Water Injected System
AEM WideBand
510cc Injectors
Port and Polish Head

I need as much input on this project as possible

 

you will need better pistons and a better turbo with that....and probably race gas.

a local guy had a fully build z6 on race gas at 26ish psi and barely managed to pull 400

 

The turbo has a upgraded stage 3 wheel inside of the .48 Backhouse. U am also running a .60 front wheel. I think this will be suffiecent to take me there. I need something that does nto give me too much lag.

 

Youre gonna need better pistons, bigger turbo and bigger injectors to make that power. You might can squeeze that out of what you have but it will be a timebomb.

 

These piston are know to be able to take as much as 25-28 psi.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beaver &raquo;</TD></TR><TR><TD CLASS="quote">Youre gonna need better pistons, bigger turbo and bigger injectors to make that power. </TD></TR></TABLE>
yep

 

Bigger injectors.
3 stage vtec head???
What CR will it give you with those vitaras?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crawfordra &raquo;</TD></TR><TR><TD CLASS="quote">These piston are know to be able to take as much as 25-28 psi.</TD></TR></TABLE>That doesn't matter, its the POWER that matters. If your pushing 25psi and making 225 hp, it's different than pushing 25psi and making 400hp.

Get forged pistons and a bigger turbo, there's no way you'll see 400 with that turbo.

Search for the nonvtec sohc at 26psi on the same turbo, he made 300hp, when you think it will make 400 .

You'll probably need injectors in the 700-800cc range too.

 

-880cc injectors
-good pistons....not Vitaras
-why use Microtech....use Hondata, Crome, or Neptune
-bigger turbo SC34ish size....i would think anyway

 

Bigger turbo for sure, and i'd also do .63 AR.

 

sleeves
wiseco pistons
GOOD ported head
zex 59500 cam
zex retainers
750cc injectors

300whp is more than enough for a street car. anything after that traction becomes an issue. and you start breaking **** alot more. also, it would be a more realistic goal.

 

i will be posting some pictures sortly

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spooncivic1 &raquo;</TD></TR><TR><TD CLASS="quote"> 300whp is more than enough for a street car. anything after that traction becomes an issue. and you start breaking **** alot more. also, it would be a more realistic goal. </TD></TR></TABLE>


+1 to that! i'm shooting for 300whp in my GSR because i want to drive it daily w/o slicks or drag radials all the time.

 

[QUOTE=AbitAvenger]That doesn't matter, its the POWER that matters. If your pushing 25psi and making 225 hp, it's different than pushing 25psi and making 400hp. [QUOTE]

i also agree with everyone on that your going to need bigger inj. chrome or hondata, cp or je pistons, zex nitrous cam and a bigger turbo. i can't wait to see the final product though, i'm also building a sohc.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crawfordra &raquo;</TD></TR><TR><TD CLASS="quote">These piston are know to be able to take as much as 25-28 psi.</TD></TR></TABLE>

Yeah whatever dude. If you think you know everything why even post? That setup will never make 400whp... NEVER! lol...

 

Eagle Rods-good
Over size Vitara Piston-garbage and wont yield you anything near 400
ARP Head Stud-good
ARP Rod Bolt-good
Cometic Head Gasket-has problems with overheating
BlockGuard-....
Reenforce sleeve-what about the blockgaurd?
T3/T4 Turbo .50/.48-way to small
3 stage Vtec Head-i have no idea what that is
ZC block-...why?
Microtech Standalone Managment-why?
Aquamist Water Injected System-good
AEM WideBand-good
510cc Injectors-way to small look into 800+
Port and Polish Head-good

 

take out the pistons, look at the max power made with them, 258whp or something on a dynojet, lol i made 264whp on a mustang dyno with stock pistons, lol. If you are on a budget get SRP's, or just do it once now and get weisco's or something top notch. My 444cc's were 100% duty at 264whp but i was running a conservative tune with a bit more fuel. Get big injectors, p28 with uberdata, pistons, dont bother with sleeves or reinforcement, run a stock d16z6 HONDA 3 layer metal head gasket, get atleast a precision sc50, it will make 400whp but with a fair amount of boost or grab the sc32, both amazing turbo's, anything larger will be too laggy, well for me anyways. Run a z6 block or a6 block, both good quality stuff. You really dont need water injection, focus on the basic platform first,.

Wha kind of turbo manifold? Hopefully not OB-craX, or Auto-crap?

goodluck.

cheers ... Chris

 

jeff evans and full race made 460 whp on stock a6 sleeves. at around 30 psi. they are up to the task, but not if your detonating.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redzcstandardhatch &raquo;</TD></TR><TR><TD CLASS="quote">jeff evans and full race made 460 whp on stock a6 sleeves. at around 30 psi. they are up to the task, but not if your detonating. </TD></TR></TABLE>Nobody is doubting the fact that most d-series sleeves can take a beating, and with a good tune push alot of power. What we're saying is that this guy wants to make 400 hp with "homemadeturbo" parts, and it's not going to happen.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redzcstandardhatch &raquo;</TD></TR><TR><TD CLASS="quote">jeff evans and full race made 460 whp on stock a6 sleeves. at around 30 psi. they are up to the task, but not if your detonating.

</TD></TR></TABLE>

they had a pretty worked head on that single cam tho...
they also had a chance to play w/ 2 different turbos to see which one achieved better results...

 

you could make 400whp on those Vitaras but you're going to need new ones soon.....they won't last and you'll have to pick up the pieces once they let go

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redzcstandardhatch &raquo;</TD></TR><TR><TD CLASS="quote">jeff evans and full race made 460 whp on stock a6 sleeves. at around 30 psi. they are up to the task, but not if your detonating. </TD></TR></TABLE>

If you're shootin for that power...why not just copy their setup? When going for that much power...might as well do it right...no worries. When you're only down at 200whp...sure HMT kind of stuff works fine...but not when you're aiming for big power.