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+--- Thread: OM617 NA - Garrett T25 - big enough? (/showthread.php?tid=7229)
OM617 NA - Garrett T25 - big enough? - Dusty-G - 05-25-2016
Hi
This engine is in a Gwagen, and it was turbo-ed years ago. I have rebuilt the engine, but unfortunately the turbo is leaking internally.
Before rebuilding the turbo, I want to hear the opinions of Others on whether this turbo is OK for this engine? I realize that there is also the question of what impeller is in there (trim?), but as I will be looking at replacing the impeller/shaft anyway, I would like to know if this is a feasible choice. I never got to drive the car, so have no idea if the original installation worked well or not.
The reason I ask is that the factory OM617A uses a larger T3 - size.
Thanks
Adrian
RE: OM617 NA - Garrett T25 - big enough? - NZScott - 05-25-2016
If anything, you want bigger...
I went small for my NA>turbo conversion and changed my mind - small turbine means high EMP and EGT which will stress the engine more.
Have a read of http://www.4btswaps.com/forum/showthread.php?74457-OM617-Performance-Review
Edit: I'll just add, I see no point sticking with 40 year old turbo designs, if that's what you've got. Get something more modern if you can.
RE: OM617 NA - Garrett T25 - big enough? - barrote - 05-26-2016
anything from a OEM 3 liter diesel... can do the job... expecially one less than 20 years ago... like the kkk24
RE: OM617 NA - Garrett T25 - big enough? - Dusty-G - 05-29-2016
(05-26-2016, 04:25 AM)barrote anything from a OEM 3 liter diesel... can do the job... expecially one less than 20 years ago... like the kkk24
Yes, good point. I am investigating a few options here. This installation set the turbo towards the rear of the engine, where its heat has affected the steering column in the past...
Thanks for the responses.