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Ok, now for my next question. Does the supercharger make the car run hotter than normal? I live in Palm Desert Ca and when its 110-117 I am running at about 230. When I going up the curvy mountain roads or pulling a steep grade on the interstate its gotten as hot as 245. That concerned me alot. Is this normal for these types of desert temps with the SC? Do I have another issue such as radiator, water pump or t-stat?
Any input is greatly appreciated
plan for a minimum of 20 degree increase in coolant temps. My car stays running hot and my ambient temps rarely see over 100 degrees. With 117 ambient temp I would not even try driving my boosted Z06 without expecting to overheat.
When was the last time the radiator/condensor was cleaned? That makes a HUGE difference.
What mix of coolant to antifreeze and how much ww?
I run 80/20 with 2 bottles. Works great for me. Just enough coolant to lube the system. It never gets below freezing here so I don't worry about freezing.
With ambient temps that hot we usually see 230-235* with a/c on in traffic. Once you get rolling down the freeway it's usually 200-205* with a/c on.
I think you might have a Eforce kit tho and not a A&A kit. Next time you are driving try dropping down a gear or 2 to get the engine rpm up more and see if that helps bring temps down a little more since the water pump will speed up with the rpm.
If you still need to improve the temps you can do a alum radiator and matching spal fans.
That being said, 230 is completely fine for those extreme ambients, so as long as the ac isn't cutting out or the car getting 245+ you may want to just leave it as is, unless running 10-15 degrees cooler is worth $1000+ to you.
Snapped this driving home after running errands for a few hours. Was 117F out according to car, 116 according to phone. AC on, city stop and go. 217F coolant.
I've had an Edelbrock 1593 installed in my 2007 A6 vert for four years and watched a very steady increase in cooling temps. The intercooler and A/C condenser in front of the stock radiator, combined with the gradual accumulation of dirt, twigs, and fine bits of sand in the bottom four inches, eventually caused 220-230 degree coolant temps.
This past spring I finally ordered a DeWitt's 1139105B dual-layer replacement radiator with both engine oil and transmission coolers ($799.99 plus shipping). This alone has made a tremendous difference. Lately in the midst of a St Louis heat wave with nearly 100 degree days, I've seen a very dramatic reduction in coolant temps -- down to 175-190 degrees most of the time.
I've noticed my temps slowly increasing. Installed new (OEM) radiator around June of last year. Temps stayed high 190's / low 200's pretty much all the time. They're up to 210 or so now on the exact same roads. I can only assume it's from crap accumulating in the not so new anymore radiator, but until it gets high enough to matter I'm not messing with it.
07-20-2016, 03:47 PM
Desert heat and Supercharger
