GTA2256V safe boost? - Alfa Romeo Forum
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(Post Link) post #1 of 3 Old 05-01-18 Thread Starter
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GTA2256V safe boost?

The 20v 2.4JTDs have slightly better turbo than 10V's, GTA2256V vs GT2256V.
I have no idea in what, maybe just better bearings... Mine has 517.000km, still working perfectly.
Y currently drive it 2600mbar till 4000rpm, then fall quickly to 2400rpm at 4500. I very rarely punch it to +3700rpm, almost never +4000rpm.
It's been a year like this, no strange sounds neither weird behaviour. I just wanted to know if it can go better?
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Quote:
Originally Posted by DavidAlfa166 View Post
The 20v 2.4JTDs have slightly better turbo than 10V's, GTA2256V vs GT2256V.
I have no idea in what, maybe just better bearings... Mine has 517.000km, still working perfectly.
Y currently drive it 2600mbar till 4000rpm, then fall quickly to 2400rpm at 4500. I very rarely punch it to +3700rpm, almost never +4000rpm.
It's been a year like this, no strange sounds neither weird behaviour. I just wanted to know if it can go better?
AFAIK the 20v turbo is GT2256v as well. Difference is a double walled turbine housing with vband connection at the 20v. GTA versions are the one with fixed manifold found on Alfa 159, Vauxhall/Opel, Saab etc.
For sure these 20v GT2256v's are not bulletproof as I've a seen a couple of them fail if these are pushed to high boost in the upper rpm band.
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(Post Link) post #3 of 3 Old 09-01-18 Thread Starter
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Nice to know. Thanks. Any idea about safe boost levels?
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