Thermostat questions
Senior Member
Joined: Aug 2006
Posts: 615
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From: Deatsville, AL
Originally Posted by openclasspro#11
to help with detonation issues on boosted motors-i actually run a 160 in my 1989 20th anniversarry trans am indy pace car with the buick gnx motor
Senior Member
Joined: Jun 2002
Posts: 4,293
Likes: 6
Stock in a 5.4, from '97 on, is 195.
You guys reading about these cooler thermostats in a blown motor, just stay away. Tuning a blown motor is a different ball game so don't read that and start thinking... "well if it's good enough for that motor, it should work good in mine!!" Not so!! Personally, and I don't mean to be a jerk, but you supercharger guys shouldn't even be on here saying that. It's completely irrelevant what you use to a normally aspirated guy.
Here's another thing...just because you throw in a 160 thermostat doesn't mean it's gonna run that cool anyways. I guarantee you if you're still running the stock single core radiator, your cooling system has neither the capasity nor the capability to run your truck that cool in summer anyways. It's still gonna run warmer. But then in the winter when it gets cold and your cooling system become more efficient, it will run cooler and that's where the problems (decreased fuel mileage/performace) will creep up.
You guys reading about these cooler thermostats in a blown motor, just stay away. Tuning a blown motor is a different ball game so don't read that and start thinking... "well if it's good enough for that motor, it should work good in mine!!" Not so!! Personally, and I don't mean to be a jerk, but you supercharger guys shouldn't even be on here saying that. It's completely irrelevant what you use to a normally aspirated guy.
Here's another thing...just because you throw in a 160 thermostat doesn't mean it's gonna run that cool anyways. I guarantee you if you're still running the stock single core radiator, your cooling system has neither the capasity nor the capability to run your truck that cool in summer anyways. It's still gonna run warmer. But then in the winter when it gets cold and your cooling system become more efficient, it will run cooler and that's where the problems (decreased fuel mileage/performace) will creep up.
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Joined: Apr 2004
Posts: 13,678
Likes: 82
From: missing Texas...
Originally Posted by Galaxy
and I don't mean to be a jerk, but you supercharger guys shouldn't even be on here saying that. It's completely irrelevant what you use to a normally aspirated guy.
I ran a colder thermostat on my 2001 prior to adding the supercahrger but I also live in Texas and it helped out in the summer time