Cant make up my mind between a 35R and a To4R

[boostmaniac]

Ok I was going to get the SBR GT35R for sure and then I seen that someone was running a To4R on his 2.0 and got 579! with 650cc injectors,only a S-afc and VPC,stock T/B,Rail,fuel lines,and intake manifold on 29# of boost. I know that SBR got 629 or so on their 2.3 GT35R but Its a 2.3.

 

[PSI2HI]

If you go w/ the T04R get the stage 5 wheel or get a .63AR. The .82 stage 3 is laggy.

 

[Shearer]

They are both quite potent turbos in t3 or t4 housings. The bolt on housings available kill overall performance of the larger compressors. A friend just made 668hp/545ft lbs with a t3 gt35r and one of my manifolds. Dyno Sheet. This car also just went 10.1@141 without nitrous.

Comparing this chart to a similarly powered 67mm/P trim combo the 35r smacked it around like a red headed step child. The 67 is capable of similar numbers with a 2.0 but do not expect the spool up and mid range you'd get from the 35r.

 

[nanokpsi]

The to4r would be capable of much more, but you are defiantely right about the spool up. However, with the Garrett BB CHRA, it would be realively easy to convert a t67 to a BB unit and give a little more low end. Granted, it will still be slower to spool, but it has a 100whp advantage over the 35r.

IMHO getting one of these bolt on turbos in a bolt on housing isn't even worth it. Also, getting a t67 in a .63 t3 with a t350 wheel is next on the list of worthless...

 

[boostmaniac]

It'll be a T4/TO4R .58a/r with the Q trim wheel! good to 700! I cant wait!

 

[98talonAWD]

i would have called and had a custom turbo made for you.

i just got my ITS dual ball bearing GT72 Q trim in a 1.06AR T3 divided. its good for like 900hp or some stupid shit. i got lower compression on my 2.3L stroker( 7.5:1) but i should see full boost a little under 5000rpms without spray... i plan on running 40psi and a 125+ direct port shot.


hope to make that 35R dyno map look like a stock civic map.... hehe. that is sweet on a 35R though... pretty amazing.

 

[nanokpsi]

It'll be a T4/TO4R .58a/r with the Q trim wheel! good to 700! I cant wait!

I do not think the .58 will support 700whp. I like the idea of the q wheel, or even a gt40 turbine, but don't just thorw it in a small housing to make it spool. It will still be laggy and possibly choke off flow up top.

 

[CanadianTalon]

The to4r would be capable of much more, but you are defiantely right about the spool up. However, with the Garrett BB CHRA, it would be realively easy to convert a t67 to a BB unit and give a little more low end. Granted, it will still be slower to spool, but it has a 100whp advantage over the 35r.

IMHO getting one of these bolt on turbos in a bolt on housing isn't even worth it. Also, getting a t67 in a .63 t3 with a t350 wheel is next on the list of worthless...

.63a/r made 629whp at 28-29psi and 657@ 30psi the .82 HO made 731whp@31psi and around 680ish at 28-29psi

657 WHP with the T3/T67 on the stage 5 wheel in a .63 A/R hot side. That's on a 2.0 litre honda, but far from worthless. .82 HO is refering to a .82 A/R T3 exhaust housing cut out for a P-trim wheel on the same T67 compressor wheel. Sure, it frees up some top end horsepower, but at the expense of about 500 RPM's worth of lag.

I think you should give us a horsepower goal before we can decide what's right for you.

 

[boostmaniac]

My Horsepower goals are 600-650 on race gas around 33-35psi. The To4R is my choice!

 

[nanokpsi]

If I wanted 600-650 then I would opt for a 35r. I wsnted 700+ so I stuck with the t67/p tirm.

 

[boostmaniac]

I thought I'd set my goals a little low to start off with , and If I want more than I wont have to buy another turbo.