Is this ok Temp for tranny fluid?
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Joined: Jan 2000
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From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
Is this ok Temp for tranny fluid?
i have a 700R4 and an autometer guage. I also have a tranny pan with tubes running thourgh it. Suppose to be a cooling mod also I have a tranny cooler and an external tranny filter. The car shows 160* when hot and sitting and 125* on the highway cruising. Is this ok?
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Joined: Jul 1999
Posts: 5,183
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From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
Seems a little cool from what I remember...seems to me the "ideal" (take it for what it's worth) tranny temp is 180-185.
I read somewhere that for every 10* rise over the 180-185 temp, the tranny fluid's life decreases by some factor..25%, or something like that.
Not sure if it's an issue running cooler.
I read somewhere that for every 10* rise over the 180-185 temp, the tranny fluid's life decreases by some factor..25%, or something like that.
Not sure if it's an issue running cooler.
Thread Starter
Supreme Member
iTrader: (8)
Joined: Jan 2000
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From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
damit. I can never win
Now what do I do? Is my guage off? Its a brand new autometer Pro Comp.
Now what do I do? Is my guage off? Its a brand new autometer Pro Comp. Trending Topics
Joined: Sep 1999
Posts: 1,405
Likes: 8
From: Grand Rapids, MI
Car: 1985 IROC-Z
Engine: Magnacharged LS1
Transmission: T56
Axle/Gears: Ford 9" 4:11's
180 is about where you want it to be. Running it too cold is almost as bad as running it too hot. The temp should be taken with a sensor mounted in the pan.....that is where the temp will be most stable.
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From: Hinesville, GA USA
Car: '86 IROC-Z/'94 Z28
Engine: 350 LT1/382 LT1
Transmission: 4L60-E/T-56
Axle/Gears: 3.45/3.42 (soon 4.10)
I had a problem with this. The problem with the fluid being too cool is that it's thicker. My car wouldn't want to shift in the morning during wintertime because the fluid was thick. I had a fairly large cooler mounted up front. Solution...instead of running the cooler from radiator to cooler to trans, I ran it from cooler to radiator to trans. I guess if it's bad enough you can run it cooler only. I know they sell thermostat's for those. I agree, 180 is the best temp. My trans worked best there.
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Joined: Mar 2000
Posts: 13,414
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From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Mkos, you could cover 1/2 of the aftermarket cooler with a thin piece of sheetmetal... maybe punch some holes in it to allow for some airflow thru the "shield". I think that would cut your trans cooler in half and maybe give you the extra few degrees you need.
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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
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