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Has Anyone Boosted An R34gtt Turbo Past 15 Psi

DFAULT

By DFAULT,
in Engines & Forced Induction

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Sydneykid Grand Master

Sydneykid

Posted
Posted
Hey there,

1. So for all you guys that have had the turbo die on you, was the turbo ever subjected to continuous high heat levels, i.e., drifting, track racing, or continuous on/off throttle runs through the gears in short periods of time?

2. The R34 turbo's must have a small efficiency range if they start to die around 12psi, just seems low to me, and a very quick drop off. You'd be able to verify this on a dyno by looking at inlet temps at various psi.

3. The R33 turbo on my RB20 does make a fair bit more on the dyno at 1Bar (14.7psi) as opposed to 0.8bar (12psi), but it was on different dyno's, but using the same shootout mode. Inlet temps did not skyrocket either. R33 turbo's seem to be still good at 15ish- psi..... whereas R34's seem to go off at 12.

Fixxxer

Suggestions follow;

1. Yep, going up the hill from Mooney Mooney Bridge on the F3, 4 people, boot full of wine from the Hunter = ceramic in the cat disease

2. Nope they work well from 4 psi to 12 psi, that's a big efficiency range

3. Don't confuse efficiency with durability. Also keep in mind an 8.5 to 1 compression ratio 2 litre has quite a few different characteristics from a 9 to 1 compression ratio 2.5 litre. Remember boost is simply a measure of resistance. The airflow required to make 1 bar on a RB20 is substantially less than the airflow required to make 1 bar on a RB25. Efficiency is all about airflow.

:mage: cheers :D

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