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new engine comno runs hotter than before - ways to reduce driving temp/

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Old 07-04-2012, 07:37 AM
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Default new engine comno runs hotter than before - ways to reduce driving temp/

LT1
stock cooling system
160 stat and lowered fan settings
still runs ~195-200 degrees light load cruising, in city traffic or after a hard pull ir rises ~20 degrees and takes forever to cool down
both fans are working
could mismatched fan on/off settings restrict that much?
could a clogged up, stop leak fllled radiator cause this?
anyone else have enough and buy a BECOOL radiator / big fans?
did that help lower temp?
Old 07-05-2012, 12:34 PM
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The water pump could be on the way out. Another option would be to try water wetter or another kind of additive to reduce the temp.
Old 07-06-2012, 01:42 AM
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Your AC condenser is probably blocking a lot of flow to the radiator, they tend to get gummed up. Check your radiator to be safe. Also check your airdam and see if it is still intact. I never went above 200 with that setup.
Old 07-06-2012, 06:33 AM
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I'm leaning toward the radiator. I bought the car, the engine blew, when the rad came out - tons of stop leak goo and crust came out of it.
Sat all winter and we put it back in - last year it wasn't running hot.

Air dam is mint. A/C condensor is also same as last year, which did not run as hot.

I also put on very old casting AFR heads. Everything that could not line up right did't with them. Like pushrod guideplates, exhaust gaskets. I wonder if the cooling capacity in the heads is not that great compared to stock heads?



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