kwhiteside

The C6's (2005-07 Z51) come with an optional Engine Oil Cooler and Transmission Cooler.

KNP COOLING SYSTEM,TRANSMISSION,HEAVY DUTY HVY DUTY TRANS CLG SYS(KNP)

KPS OIL COOLER,ENGINE ENG OIL COOLER(KPS)

Will these options allow you to forget about you fluid temps, ie. Oil less than 250f?

Or will you still end up having to get an aftermark Dewitts or DRM unit?

Real track experience please (90degrees up), no guessing.

gkmccready

Nope. My C6 Z51 could easily hit 300F on oil on a 100+F day at Thunderhill (on the stock runflats, or Toyo R888s, not even Hoosiers). I put in a DRM/Ron Davis Radiator with EOC/TOC and it's kept the temps in check. I'll know exactly how well when I get a few more days on it during the summer. I don't think you'll see under 250F without a huge external oil cooler, though.

kwhiteside

Arghh, not the answer I was looking for. Not helping to justify my C6 dream over a C5.

Thanks for the honesty though.

davidfarmer

That's interesting, I thought it would have been fine. I don't run ridiculously long sessions, but I've never hit over about 270º on my C6Z06, and would have assumed the C6 setup would be similar.

ErnieN85

Ken, the C6 Z06 oil cooler is bigger than the Z51 cooler and will work in place of the stock one. That is what i did on my C6Z51 although it is just as expensive, as an aftermarket!

0Randy@DRM

z06>z51 in terms of cooling. The drysump and large external cooler seems to be working better. Add some horsepower to the Z and you are right back to spending money with the aftermarket.

Randy

Geauxtigers

Like others have said, no. Even with upgrading to a Z06 oil cooler you can easily see temps of 275 on a summer day.