piping diameter.

[93_f22aky]

Can everyone seriously stop saying "xx psi". It's retarded and meaningless. The psi an engine can "hold" changes with each turbo.

Don't ever set your goals on psi, but rather set power goals.

2.5" is fine for charge piping up to about 400whp, then it starts being a restriction.

well ya u will have whp goals but i can say i want 400 whp but will my stock bottem handle it? u can make 400whp in diffrent ways......

its all on ur setup tuning and PSI.... so psi dose make a diff

[d112crzy]

Not really.

You can make 400whp on 12psi with a certain turbo, and make 400whp on 20psi on a different turbo. It doesn't matter how much psi, what matters is the final output.

It's not about the psi. It is about tuning.

[keycb7]

It's all about how well your engine flow with given turbo, how fast turbo can recover amount of air that motor needs to make power, in 3k rpm your pushing 12psi and at 7k rpm same 12psi, so when you past it's efficiency now your turbo becomes restriction. Thats why bigger turbo makes more power over small ones plus they wont make heat that cause det. down side they spool at higher rpm so your power band stars from 5k rpm to 7k rpm lol

as for charge pipes if you don't have extreame turns over 90' then 2.5" is more that you need.

[CB7lx91]

you already have cartrige so all you need is 16g super back rebuild kit + turbine wheel and compressor wheel, make sure you get same compressor wheel to match your housing and turbine wheel are all same 14b, 16g, evo3 16g also it have to be td05h not td05

edit: When you buy new turbine wheel and compressor wheel make sure they are balanced.

Alright cool thanks man, after work I'll start checking out some rebuild kits with wheels.

And for the sake of not buying more piping, I'll just stick with the 2.5" because that's what is sitting int he back seat of my car right now.

Any specifics on rebuild brand? eBay compared to MHI, seems obvious, though.

[bjaccord]

I'm running 2.25" on my setup, and now that I'm getting closer to the 400 mark I am considering a staggered setup. 2.5 on the hot side, and then 2.75 or 3" on the cold side. Havent made up my mind yet though, still doing research.

L8r

[keycb7]

Alright cool thanks man, after work I'll start checking out some rebuild kits with wheels.

And for the sake of not buying more piping, I'll just stick with the 2.5" because that's what is sitting int he back seat of my car right now.

Any specifics on rebuild brand? eBay compared to MHI, seems obvious, though.

http://cgi.ebay.com/ebaymotors/Turbo...spagenameZWDVW
I bought same one for myself just form different seller, I did bought heat shield from this guy they sell "KAMAK DYNAMICS" rebuild parts same parts used by Greddy turbines.

[CB7lx91]

cool, thanks man, looks like this is next on my list lol.

I can't wait to get this thing started in the summer.

Thanks again guys.

[chessboxer]

Best of luck man, keep us updated.

[93_f22aky]

Not really.

You can make 400whp on 12psi with a certain turbo, and make 400whp on 20psi on a different turbo. It doesn't matter how much psi, what matters is the final output.

It's not about the psi. It is about tuning.

that was exactly what i was saying u can make the power in diffrent ways psi or setup