Re: Turbo(s) for 2.8 I6
 

I've used a Turbonetics full T4 on the stock 5vz-fe and boost didn't even kick in until 4500-5000 rpms. Turbine A/R was .69 P-trim. Compressor A/R .60 T04B. By the time I saw boost, I ran out of RPM's.

So now, I'm looking at this turbo.
http://www.turbobygarrett.com/turbob...2_452159_3.htm

I can get a good price on it. I think this will better suit me. It has a T3 turbine of 1.12 A/R divided. Comp. .54
What's your thought on this? I want to run max. 15psi.

Re: Turbo(s) for 2.8 I6
 

Yeah, P trim is huge, you might have tried N or O.

GT 3782 is just 2mm smaller turbine wheel than P trim and the lowest a/r available is 1.12 a/r. Not sure what makes you think it will spool quicker than the P trim .69 !!! :-\

Ok.... in order to nearly amtch the GT3782, My suggestion for this would be a t04b h trim or even a 60-1 compressor, mounted on a stage 3 turbine. Start with 0.63 a/r and you know you can easily switch to 0.48 or 0.82 if need be to adjust spool up to your taste. for Less than 15 psi, you don'T even need the 360° thrust but watercool will be a most especially with .48 and .63.

Re: Turbo(s) for 2.8 I6
 

why not just run a 7m manifold and a ct26 and be done with it ? or better yet just swap on a 7m head it flows better any way

Re: Turbo(s) for 2.8 I6
 

Yes, sure!! But How many CT26's are needed for 500 HP ?:S

Re: Turbo(s) for 2.8 I6
 

a bucketfull

Re: Turbo(s) for 2.8 I6
 

A/R is too big. On the 5vz-fe, as compact as the rpm range is. Your classic .63 t3 housing will be perfectly fine out passed 400hbp.
Avoid CT turbos at any cost. Stay with brand Garret/Holeset/IHI-Borgwarner, or mhi. (CT26a off a 7m-gte would make 375-400bhp @ 16-18psi on that engine.)

Re: Turbo(s) for 2.8 I6
 

Thanks for the heads up. It's going to be the Garrett T3/T04E Stage 3 .63/.60 57 trim I guess.

Re: Turbo(s) for 2.8 I6
 

Get the 60-trim compresspr, just trust me. :D

Re: Turbo(s) for 2.8 I6
 

t3 60 trim?
T04B 60 trim?
T04E 60 trim?
60-1 ?

They're all 60 trim.

Re: Turbo(s) for 2.8 I6
 

Im implying for him to step it up to the 60-trim.