My car has a 160* thermostat and hypertech thermomaster, ever since i had the car its ran at 160* until now and its starting to rise up higher.. I just had my timing checked and he said it was like 6 or 8 * off.. does that mess with your temp at all? any other suggestions would be appreciated.. thanks

------------------
1991 Camaro Z28
------------------
CURRENT MODS:
350 TPI, Automatic, Edelbrock Headers, Edelbrock Runners, Edelbrock Intake, Flowmaster Exhaust, MSD 8.5mm wires, Autolite Double Platinum Plugs, MSD Cap/Rotar, Random Technology high flow cat, Hypertech Power Chip (160 Deg Thermo), K&N Filterchargers
STEREO MODS:
Pioneer DEH-P6000, 2 JL Audio 12W3 subwoofers in custom hatch enclosure,
Rockford 250a2 Amp, Infinity Kappa 4x6" plates & 6x9's
WEBMASTER: Frank's Thirdgen F-body Website(eventually)

 

6 or 8* off what the factory specs are, or 6-8* beyond anything beneficial for the engine?

Anyways, yes, if your timing is advancaed too much it could cause overheating issues.

------------------
89 iroc-z 305 tbi
k&n filtercharger, open element air filter. nuffin' else

 

True that timing can increase engine teprature but no way is it going to increase it 60 degres! You probably have a water pump going out or the radiator is getting full of sludge.
SSC

 

I'm not so sure I would trust your guage. If you were "really" running 160° (that's pretty cool) you would have MORE problems than if you were running 220°.

Normal operating temp (by design) is 90°C which converts to 194°F. Stock stat is 195°. Fan turn on temp is 234°. And your ECM is dependant on your coolant reaching 176° to make it's last coolant based decision.

If you're running 220° and don't have the A/C on you'll never even see cooling fan operation (on a stock unit).