Project CT26 Turbo/ R33 RB25DET

[WLD747]

Well people i would like to start a project to put a CT26 from a Toyota Supra into a RB25DET. The reason being this turbo is a T3 and has an internal wastegate. Ive read an article on the internet about highflowing this turbo and turning into a hybrid T3/T4 turbo. The turbo would flow very well upto 300-400hp. The highflow would be just putting a t4 compressor wheel and front housing machined and a t4 exhaust housing(if chasing heaps of power).

Ive mad a list of costs below and wondering what peoples opinion are;

Standard T3 ct26 Turbo $200

Highflow $500 (only t4 compressor wheel and machine housing)

Oil / Water Lines $100

$800 TOTAL

T4 Exhaust Manifold $800 (If wanting more power)

is this possible on this budget, and i missing anything?

cheers

ak

[Roy]

Dont the CT26 turbos use twin scroll exhaust housings, with the twin internal wastegates...

Check that it will work all right with you std exhaust manifold. I think it will be easier with similar result to high flow an old Nissan turbo with the T3 exhaust housing (VG30 etc), that way you can be sure that at least it will bolt up to your current dump, water/oil etc, as the CT26 wiht the twimn wastegates may have a different dump flange????

[Guest INASNT]

Well people  i would like to start a project to put a CT26 from a Toyota Supra into a RB25DET.  The reason being this turbo is a T3 and has an internal wastegate.  Ive read an article on the internet about highflowing this turbo and turning into a hybrid T3/T4 turbo. The turbo would flow very well upto 300-400hp. The highflow would be just putting a t4 compressor wheel and front housing machined and a t4 exhaust housing(if chasing heaps of power).  

Ive mad a list of costs below and wondering what peoples opinion are;

Standard T3 ct26 Turbo     $200

Highflow                            $500 (only t4 compressor wheel and machine housing)

Oil / Water Lines               $100

                                        $800 TOTAL

T4 Exhaust Manifold          $800 (If wanting more power)

is this possible on this budget, and i missing anything?

cheers

ak

mate u always come up with some weird shit u wanna do to your car

[TTT]

one other thing..

if you put a T4 comp wheel and not change the exhaust wheel, isn;t this going to cause MASSIVE compressor surge?

[sweetr33]

gcg have a ct26 turbo on there site which looks quite large. Would be interesting

[Steve]

Some other costs to consider, dump pipe, pipe from intake to turbo, turbo to cooler. Oil and water lines, hmm, 100 seems a bit lean, perhaps 200 would be closer maybe more

If this turbo is rated 300 to 400bhp, it wouldnt be much of an improvement over stock, alot of money for potentially little return.

If you are getting anywhere over 200rwkw, other things you need to consider is a fuel pump and AFM upgrade, possibly clutch too if you havent already done them.

[EnricoPalazzo]

Why not just get a vg30bb turbo exh housing. Add a to4 comp wheel. use the existin parts of ur r33 turbo and u should make around 500 hp.

search these forums for " $350 turbo"

[WLD747]

Yeh the ct26 doesnt seem like a practical idea. The Vg30 is looking much better. thanks guys

[BOOSTD]

I have found there i a T04b super series Vtrim that has a bigger exducer than the standard TO4b Vtrim, it allows it to boost faster. OMG I'm getting one ! They are from www.turbonetics.com click on the T online catalogue at the bottom of the page.

[GunMetalR33]

which part number is the right one for the r33 gts-t, are the r33 gts-t's turbos wet or dry. You will have to excuse my lack of knowledge with turbos :-}

[EnricoPalazzo]

for the part boostd is referin to, it is under t3/t4 turbine wheels. this will fit on the turbo i mentioned.