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Posted by: Headrage May 22 2006, 06:23 PM

As alot of you know. I finally took the six out for a semi-actual a/x this last weekend. The weather was 85 - 90 degrees with warm winds blowing at 30 - 50 mph.

I made four 2 mile runs and even sat idling between runs and my oil temp never got above 210.

I have a 2.7 conversion with RS pistons, Solex cam, with right at 10 to 1 compression running premium pump gas.

Am I lucky or is this the norm? When is an external cooler needed?

Posted by: Dr Evil May 22 2006, 07:22 PM

Your gauge is broken

Posted by: Aaron Cox May 22 2006, 07:39 PM

it cant hurt. use a t stat...

and yes... you will find you need one when at button willow in june....

Posted by: michel richard May 22 2006, 08:00 PM

I think the quick and dirty answer is that you need them when your HP exceeds something like 170.

Posted by: 736conver May 22 2006, 08:39 PM

I have a stock 3.2 and have yet to go over 210. No extra cooler. I havent seen any air temps past 80 up here yet, so time will tell.

But like Aaron said it cant hurt.

Posted by: trekkor May 22 2006, 09:40 PM

My personal experience is you will need one if you track the car.


KT

Posted by: Dan (Almaden Valley) May 22 2006, 09:42 PM

QUOTE(trekkor @ May 22 2006, 08:40 PM)

Posted by: turboman808 May 22 2006, 09:50 PM

I haven't seen 85-90 yet. Most of the time I wonder when it's gonna warm up. Thing hasn't hit 200 yet. It has a cooler mounted in the back with fans but I haven't turned it on yet. 2.7 motor with 3.2 oil pump.

Yeah when I drove it in traffic the other day it didn't warm up to 180 for 15 minutes.

Posted by: campbellcj May 22 2006, 09:59 PM

Street or autocross use is very different from driving at 5000-7000 rpm's for 20-30 minutes. Especially when it's >90F outside.

Posted by: Headrage May 22 2006, 10:02 PM

QUOTE(michel richard @ May 22 2006, 07:00 PM)

Posted by: Aaron Cox May 22 2006, 10:04 PM

you will find yourself running hot at buttonwillow.....