R32 actuator on RB25 turbo

[benl1981]

I know this has been done before. But do these bolt on, no modifications required? SO the 2 turbos between these 2 points were the same length?

Pretty cool. WIll the stock turbo and cooler be ok with the 10psi? I will disconnect solenoid so I dont get 12 psi.

[benl1981]

I have read some posts from sydney kid and others. If I run this actautor should I swap it over on track days to the RB25 item .i.e is it not safe to run the 10 -11psi fr prolonged periods on stock turbo?

So the Rb25 turbo item must be weaker than the RB20...

[Zahos]

why is it weaker?

RB25's need more airflow to sustain 10psi in the higher revs than an RB20...

it's more to do with how hard the turbo works to maintain enough flow.

[TTT]

yes direct replacement. (do it when car is cold..hahahaha)

no don't need to swap for race days.

actually, an rb25 turbo works easier/less to create 10 psi than the stock rb20 item.

so in reality it is in a much better climate than your stock turbo would have been.

[benl1981]

I've got a R33 just looking for a touch more boost without having a boost controller.

I've heard though at the track 10-11psi might still cause the turbine wheel to come off

I guess when I go to the track just put the old actuator back on.../

ANYone know where to get one for about 20-30 bucks. Called around this arvo to wreckers and turbo places. Quite hard

[Ronin]

I run 14 psi through my rb25 turbo all day every day. I hasnt blown up. I ran 1bar through my rb20 turbo for over a year and it didnt die either. People are too wussy these days.

[predator]

10psi doesn't make the wheel fall off.. high intake temperatures cause the wheel to fall off..

[benl1981]

Ronin - have you been on the track with it. i.e prolonged hits of high boost...

Anywhere know where to source one of these little pri*ks. ive tried importers/wreckers..

[benl1981]

I have a spare rexy turbo at home. COuld I modify the actuator arm and mounting off that apparently they are about 8psi. 8psi + solenoid would be about 10psi. Though I dont know if I wanted to wreck the rexy turbo for the actuator...

[Ronin]

Ronin - have you been on the track with it. i.e prolonged hits of high boost

No ive never been on the track with it but plenty of long drives through the hills etc. But no i don't flog it all the time, so that helps it last.