Interchanceable Turbo Housings And The Results?

[sonoramicommando]

hi,

sorry to drag out the old thread but i scored an OP6 housing the other day and figured i might do something with it.

questions:

1. are there any downsides to putting OP6 on R33 S1 turbo? this is going on R32 RB25DE+t with front mount and 440cc injectors and chipped ECU.

With R34, the idea of putting a larger exhaust turbine housing on otherwise the same motor (except for NEO) was that with variable exhaust cam timing, it would allow the use of a larger turbine housing without having detrimental effect on low end. im putting it on DE+t with 10:1 compression, does that mean i can do the same without compromising on low end. personally, i'd rather have low end torque than top end if i had to give up one.

2. how does it work without putting a larger turbine wheel? what does the increased gap between the turbine housing and the wheel do?

cheers,

sam

Edited July 13, 2008 by sonoramicommando

[Cubes]

R34's vct is no different to the R33's. The R34 doesn't have vct on the exhaust.

The difference is the head; the r34 runs solid followers so cams that have a more aggressive ramp rate.

[sonoramicommando]

oh ok - thanks for clarifying that for me, there seem to be some misinformation re: NEO.

going back to the situation i got, would it be benefitial for my cause to swap the exhaust turbine housing or status quo?

cheers,

sam