danoz

I have 2003 c5 Z06. I have a LSX376 iron block motor from GM performance with a D1 procharger running 11psi.

My old set up was a ls6 with a P1(9 psi).
My coolant temps in 60 deg weather were around 176 and oil temps around 205, 220 WOT and would drop down to 205-210.
In 90 deg weather coolant temps would hit around 195 and oil temp as high as 225 max(not racing).
I have had the Dewitts Radiator in the car for over 3 years now. Fans set to come on at 176 and 160 T-Stat.

With the new LSX376 I saw the following temps.
60 deg weather, 190+ coolant temps.
230+ oil temps
In 90 deg weather.
225+ coolant temps(no wot, just driving normally)
250+ oil temps(no wot, just driving normally).

Does this seem really hot to anyone?
I will be using synthetic oil soon now that the break in period is over but do you think it will make that big of a difference?

The fans and everything seem fine.
Has anyone else experienced this and do I need to look into a oil cooler/radiator? If so which one do you recommend? Preferably one that will not drop the oil pressure too much.

Any input or help is greatly appreciated.

BTW I don't drive the car aggressively in the summer months here in Vegas at all. I only take it to the track when it is below 65 deg.

- Dan

099blancoss

We offer Ron Davis Radiators.. one of the very best rad's on the market...
We can configure them how ever you want... I run one with the integrated oil cooler...
My operating temps stay at 180 no matter what ...
The rad is 20% more effective than a stock rad.. and with the integrated oil cooler you should be fine. We offer heat extractors as well but you should be fine w/ the integrated cooler.

LSx Believer

Too much timing advance or a lean air fuel mixture could be part of your problem.