Cooling Discuss all of the aspects of cooling that you can think of! Radiators, transmissions, electric fans, etc.

Stupid quick question

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Old May 12, 2009 | 08:01 PM
  #1  
Black Z28's Avatar
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From: CT
Car: '88 Iroc-Z z28 Camaro
Engine: Carb 355
Transmission: t5 5-speed
Axle/Gears: 4.11
Stupid quick question

witch thermo cools the system better 160 or 180? 180 rite?
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Old May 12, 2009 | 08:12 PM
  #2  
UNCLE TOM's Avatar
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From: ms. gulf coast
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: Stupid quick question

the only stupid question is the one that is not asked . i have used 180's for years with no problems . good luck .
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Old May 12, 2009 | 08:51 PM
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Kevin84Z28's Avatar
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From: Sonoma CO. CA.
Car: 1984 Camaro Z28
Engine: L69 305 H.O.
Transmission: T-5
Axle/Gears: 3.73
Re: Stupid quick question

Theromstats don't cool, they allow the engine to heat up to operating temperature. A 180* will start to open at that temperature and be fully open around 185*-190*, allowing water to flow throught the radiator.
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Old May 13, 2009 | 09:55 PM
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Black Z28's Avatar
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From: CT
Car: '88 Iroc-Z z28 Camaro
Engine: Carb 355
Transmission: t5 5-speed
Axle/Gears: 4.11
Re: Stupid quick question

Ok gotcha cause my plugs are basiclly tellin me that there a lil hot not bad lookin but jus a lil hot so im gonna switch out thermos. yea good point bout the only stupid question is one not being asked
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Old May 14, 2009 | 04:09 PM
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oil pan 4's Avatar
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From: High plains of NM
Car: 89 Firebird
Engine: L98
Transmission: T-56
Axle/Gears: 3.73
Re: Stupid quick question

With a 160'F your car never warms up.
180'F thermos seem to be just right for most people, most of them start open up real good around 170'F. With lots of air flow over the radiator a 180'F will keep you between 170 to 180'F.
With a 180 or 160 in our cars a lot of times the coolant temp likes to go up and down. That makes it difficult to maintain cooling system pressure.
What ever you do make sure you have plenty of air flow over the radiator. Stabile coolant temp and steady coolant pressure under varrious conditions are more important than low operating temp.
I would stay at 210'F all day rather than bounce back and forth between 200'F and 170'F.
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