Change To 14cm2 Housing? T78

[Andreaz]

I have a R32 GTR 2.7L RB26 with 1000cc injectors and the Trust T78-33D 17cm2 turbo.

I would like to get quicker boost, you think it will work if i change to 14cm2 housing? Will i still be able to get around 700hp?

[GeeTR]

URAS more then likely has some good input on the T78 Edited January 13, 2008 by GeeTR

[Wheezy]

T78 according to the trust catalogue:

I believe this is measure at the engine:

33D: 600-720ps

29D: 600-670ps

[STATUS]

The 14cm makes them actually quite responsive for a big single into the 4000rpm range but 700hp will become a pipe dream. If the K5-700R on cats RB26 is not reponding the way i want it to im going to go T78 14cm for drifting this year. I drove a T78 17cm GTS-T whilst in japan this trip and was very impressed at how flexible it was drifting with a close ratio box, creatd have one also here in aus and it is killer also...

[Andreaz]

What do you think about changing to HKS GT-RS 52T x2 turbo? I got an offer to swap it for my T78.

[STATUS]

What do you think about changing to HKS GT-RS 52T x2 turbo? I got an offer to swap it for my T78.

what other mods apart from the T78 does it have? cams etc?? cause if your still after 700hpatw the T78 17cm is a better option.

my sugestion is to drop to the 14cm housing and if you have stock cams fit gears and wind in 4-6 advance on the inlet and 3-4degrees retard on the exhaust and work from there.

if you still are not happy you could drop one size to the 29d i have seen this make 730ps with 272 and 280 degree camshalfs, 720cc injectors, twin Z32's on a 2.7litre @ 8500rpm.

[Andreaz]

what other mods apart from the T78 does it have? cams etc?? cause if your still after 700hpatw the T78 17cm is a better option.

my sugestion is to drop to the 14cm housing and if you have stock cams fit gears and wind in 4-6 advance on the inlet and 3-4degrees retard on the exhaust and work from there.

if you still are not happy you could drop one size to the 29d i have seen this make 730ps with 272 and 280 degree camshalfs, 720cc injectors, twin Z32's on a 2.7litre @ 8500rpm.

I have other cams, but i dont know what type. Twin Z32's. Power FC.

[STATUS]

i think you should be fine with the 14cm.

[Andreaz]

i think you should be fine with the 14cm.

Today i have 720cc injectors, but its not unnecessary/overkill to upgrade to 1000cc when i go with the 14cm?

Edited January 22, 2008 by Andreaz