Turbo Upgrade

[subie]

hi guys,

when we talking about upgrading the turbo for RB20 engine, everyone alway recommend R33 turbo and hiflowed it..

how about stock R32 turbo and get it hiflowed? so, u can bolt it back without any mods (oil line, water line)

- what u guys reckon?

- what the different between hiflowed R32 and R33 turbo?

cheers

[dead32]

not 100%sure but i think the reason they highflow rb25 turbo's is due to the larger housings/comp cover to start with..

[dmr]

it depends on what your goal power is for your car and for what use. alot of people say the ideal turbo for an rb20 is the hks2530, but the r33 hiflow will do fine.

[subie]

RB25's turbo would not spoon as fast as RB20's turbo (both highflow)?

[dmr]

smaller turbos, better response. bigger turbos, higher power.

[BAMR33]

The standard rb25 turbo is the best bang for the bucks. Most people see the ceramic wheel as a disadvantage, but it's really not that bad. since the rb20 does not deliver flow that the rb25 does you can run more psi safely and still have the spooling time advantage over a steel wheeled high flow. Aiming for average power rather peak power is the best thing for a street car.

Edit: hi-flows often require line modication and actuator rod modification. besides that the rb20 rear housing is restrictively small.

Edited December 26, 2007 by BAMR33

[subie]

BAMR33 : thanks for ur input mate

does RB25's turbo bolt straight on RB20det? (i'm talking about stock one) and any benefit from stock RB25's turbo with RB20det?

cheers

[BAMR33]

I'm fairly sure it's a straight bolt on, some of the early rb20's had different banjos probably should check up on this and you'll also need the turbo elbow from the rb25 turbo.

[subie]

thanks mate