Factory ECU limitions with larger turbo charger.

Hjt · Postby **Hjt** » Fri Oct 26, 2012 8:32 pm

Hey all,

I have a Garrett T2560R Turbo, it's basically dead, water inlet hose split causing starvation and it has a tiny whole in the cast iron centre. I'm looking ahead for a replacement, obviously another 2560R is perfect, however they are rarer to find etc.

From a factory ECU perspective, I am worried upgrading to a larger turbo such as a GT2871R would effect my ECU parameters such as the air/fuel ratio and I don't want to run it lean.

Anyone aware of my possibilities, limitations and options?

regards,

Hayden

Lokiel · Postby **Lokiel** » Fri Oct 26, 2012 8:51 pm

Your ECU will have been tuned to match that turbo so the simplest solution is to replace it with the same turbo.

If you want a different turbo, you'll need an aftermarket ECU too - or get Chiptorque to mod your ECU.

Hjt · Postby **Hjt** » Fri Oct 26, 2012 9:03 pm

If you want a different turbo, you'll need an aftermarket ECU too - or get Chiptorque to mod your ECU.

Thanks Lok, this is what I assumed. I'll just buy a new "original" turbo

Sean · Postby **Sean** » Fri Nov 02, 2012 12:13 pm

Yes and no...
The factory tune is less than perfect, and a slightly more efficient turbo won't see a significant enough change to cause you issues.
A 2871 is a fair step up though and might be pushing it, it's also going to only be significantly "better" if you have a strong enough bottom end to stand up to extra abuse.

My advice would be to get a similar turbo as a replacement. There are truckloads of bolt on replacements that won't require a retune.