Is a factory turbo from a RB30ET a good upgrade?

NZLeprix · Post by **NZLeprix** » Mon Aug 07, 2006 7:29 pm

Currently have factory crappy T2, all I know about this RB30ET turbo is that it says 0.48 on it and Garret, anyone know what actual size these are?

Panda_ET · Post by **Panda_ET** » Mon Aug 07, 2006 7:30 pm

They are a T3 of poor design

NZLeprix · Post by **NZLeprix** » Mon Aug 07, 2006 7:40 pm

Ok, so not worthwhile then i guess.. maybe i'll get a turbo from a 1989 CA18DET engine.. better option?

Post by **tassuperkart** » Mon Aug 07, 2006 8:20 pm

The T25 off the CA18 would be the choice.
However, altho the T3 is pretty old school, they are a robust and close to bulletproof turbo that will run on a 1500 at a laggy 20psi pretty much indefinitely and should not be dismissed out of hand.

Thing is youll have to make a new manifold for your car along with new dump and so-on.
In which case you would better spend your money on a T3/28 hybrid thing of an RB20det which is watercooled and has a BB core.

The T25 will largely bolt straight up.

L8tr
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BQ.05.TD · Post by **BQ.05.TD** » Mon Aug 07, 2006 8:22 pm

if u want a low mount manifold with T3 adapter on it give me a pm

Rzeractor · Post by **Rzeractor** » Sun Aug 20, 2006 1:49 pm

*hijacks thread*
So a T25 will bolt straight on with no stuffing around? I have alow mount turbo with a T2...

angel · Post by **angel** » Sun Aug 20, 2006 1:57 pm

Rzeractor wrote:*hijacks thread*
So a T25 will bolt straight on with no stuffing around? I have alow mount turbo with a T2...

The answer is yes and no. both the t25 and t2 have the same base flange, so yes it will bolt straight up to your standard manifold.

However the t25 has a different exhaust flange pattern (usually 5 bolt) so you will beed a different dump pipe to fit it propperly. If you are short of cash you can still use the t2 dump, and only use 3 of the bolts, it will still seal and is ok for a tempory fix, although it may make it laggy. You may have to rotate the t25 housings around aswell, depending what engine it came off. Oil and water lines are the same.

Rzeractor · Post by **Rzeractor** » Sun Aug 20, 2006 2:30 pm

angel wrote:
Rzeractor wrote:*hijacks thread*
So a T25 will bolt straight on with no stuffing around? I have alow mount turbo with a T2...
The answer is yes and no. both the t25 and t2 have the same base flange, so yes it will bolt straight up to your standard manifold.

However the t25 has a different exhaust flange pattern (usually 5 bolt) so you will beed a different dump pipe to fit it propperly. If you are short of cash you can still use the t2 dump, and only use 3 of the bolts, it will still seal and is ok for a tempory fix, although it may make it laggy. You may have to rotate the t25 housings around aswell, depending what engine it came off. Oil and water lines are the same.

Crazy, thanks buddy.