GTM TWIN TURBO install at HP Logic

westpak · 10-12-2009, 08:23 PM

Quote:

Originally Posted by LiquidZ

Thank you Terry. Just the kind of response I was looking for. So really, the direct impact on the oil temperature from the turbos is minimal because a very small portion of motor oil is in contact with the bearings.

Do I have that right?

correct, terry's explanation was pretty good, the amount of oil is small when compared to the oil capacity of the engine.

cooler is always a good idea specially when considering the temps down here and also that you will probably be driving the car harder and also the engine reving a lot faster while in boost than when NA

terrycs · 10-12-2009, 10:19 PM

On the way home from work, I took note of some peak holds which I haven't cleared since the beginning of this year. We've also had our share of 100+ weather. BUT ... I've never tracked my car so I've never hit limp mode.

EGT = 1453 at the manifold

Oil T = 233

Coolant T = 222

For reference at idle, the EGT goes down to 700-750.

So yea, the turbos will not add much more heat to the oil but under boost, the higher EGT WILL. If I tracked my car, I'd add an oil cooler.

LiquidZ · 10-12-2009, 10:25 PM

Quote:

Originally Posted by terrycs

On the way home from work, I took note of some peak holds which I haven't cleared since the beginning of this year. We've also had our share of 100+ weather. BUT ... I've never tracked my car so I've never hit limp mode.

EGT = 1453 at the manifold

Oil T = 233

Coolant T = 222

For reference at idle, the EGT goes down to 700-750.

So yea, the turbos will not add much more heat to the oil but under boost, the higher EGT WILL. If I tracked my car, I'd add an oil cooler.

Thank you Terry. It would be interesting to know what EGT an N/A car sees at the manifold.

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10-12-2009, 10:19 PM	#2 (permalink)
terrycs Base Member Join Date: Dec 2008 Location: La Palma, CA Posts: 123 Drives: 07 G35S Sedan Rep Power: 255	On the way home from work, I took note of some peak holds which I haven't cleared since the beginning of this year. We've also had our share of 100+ weather. BUT ... I've never tracked my car so I've never hit limp mode. EGT = 1453 at the manifold Oil T = 233 Coolant T = 222 For reference at idle, the EGT goes down to 700-750. So yea, the turbos will not add much more heat to the oil but under boost, the higher EGT WILL. If I tracked my car, I'd add an oil cooler.