How hot do the LT1s usually run?
Thread Starter
Registered User
Joined: Apr 2003
Posts: 249
From: Springfield, Illinois
How hot do the LT1s usually run?
Yesterday i was driving my truck with the new LT1 in it and it has a stock thermostat in it. well after about 30 minutes of driving on the highway it would rise up to about 220-225 with the windows down and the a/c off. But as soon as i got off the highway onto a 2 lane country road it stuck at 180 and stayed there. Why would it get hotter on the highway?
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Joined: Nov 2002
Posts: 1,072
Re: How hot do the LT1s usually run?
same thing happened to me... i changed the thermo nothing... turns out the lil plastic clip on bolts came loose so my airdam ended up covering my radiator... went from 230 to 170 lol
Registered User
Joined: Aug 2003
Posts: 915
From: Tucson, AZ
Re: How hot do the LT1s usually run?
I don't know if S-10s were bottome feeders like the f and y-cars. But it sounds like your engine is running cooler off the interstate becuase your fans are kicking on (stock programming fans will not kick on above 40mph). On the interstate there is a lack of air moving across the radiator to cool it down. On F-Bodys for example there is a plastic air dam under the car that direct air up to the radiator. You might need to devise a way to direct more air up to the radiator.
Registered User
Joined: Apr 2004
Posts: 94
From: Yorktown, VA
Re: How hot do the LT1s usually run?
Same here. Mine will get up to 225 sitting in traffic and around town but will go no higher than 185 going down the highway... and my fans are wired always on and a 160* stat. I thought that traveling down the interstate there would be more air traveling across the raditor?
Registered User
Joined: May 2004
Posts: 285
From: Chicago Ridge, IL
Re: How hot do the LT1s usually run?
Originally Posted by R8E1D
Same here. Mine will get up to 225 sitting in traffic and around town but will go no higher than 185 going down the highway... and my fans are wired always on and a 160* stat. I thought that traveling down the interstate there would be more air traveling across the raditor?
Your fans are always on and you still get to 225?!
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Joined: Jul 2003
Posts: 2,945
From: Fort Benning, GA
Re: How hot do the LT1s usually run?
Originally Posted by LT1Squirrel
please explain
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Joined: Nov 1998
Posts: 71,110
From: Hell was full so they sent me to NJ
Re: How hot do the LT1s usually run?
Originally Posted by Spinner
The fans turn X speed constantly. When the air coming into the radiator is faster then that X speed the fans are turning, the fans would become a restriction and partially block some of that airflow.
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Joined: Jan 2003
Posts: 1,362
Re: How hot do the LT1s usually run?
Originally Posted by Spinner
The fans turn X speed constantly. When the air coming into the radiator is faster then that X speed the fans are turning, the fans would become a restriction and partially block some of that airflow.
