trans cooler question
trans cooler question
which hose is the inlet to the radiator. i got a trans cooler and i want to make sure the fluid goes through the trans cooler first, then the radiator, then back to the trans... how would i route that?
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Fluid flows from the bottom port on the transmission to the bottom port on the rad, and from the top port on the rad to the top port on the transmission.
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From: Calgary, AB
Car: 1993 Nissan 240sx
Engine: Turbo KA24DE
Transmission: 5 spd
Axle/Gears: 4.08 VLSD
Yup.
I installed my external cooler on the out line though. My mechanics teacher told me to, because it would be on the ...low pressure line?
I'm thinking I should switch it pretty soon.
I installed my external cooler on the out line though. My mechanics teacher told me to, because it would be on the ...low pressure line?
I'm thinking I should switch it pretty soon.
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From: Detroit, MI
Car: 91' Pontiac Firebird
Engine: 388 ci Small block CHEVY (4.060x3.75), Dart Iron Eagle Platinum 200cc, Performer intake, 454 TBI, Long Tubes, True Dual 3" GPs
Transmission: 700R4, B&M, Governer Recal, 20,000 GVW cooler
Originally posted by 305q_ta86
Yup.
I installed my external cooler on the out line though. My mechanics teacher told me to, because it would be on the ...low pressure line?
I'm thinking I should switch it pretty soon.
Yup.
I installed my external cooler on the out line though. My mechanics teacher told me to, because it would be on the ...low pressure line?
I'm thinking I should switch it pretty soon.
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
A lot of people have different ideas how it should be done, but there almost doesn't really seem to be a wrong way to do it.
ok, got it all hooked up and routed properly, but i have a minor problem... the trans fluid out (top) i have going into the hard line that goes straight into the trans, but even tightened all the way, fluid leaks out pretty easily.. not a slow dribble... its leaking by the hose, not the threads so its not stripped or anything. BTW its a new aluminum radiator if that has anything to do with it...
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Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
The hard lines are only good for so many retightenings before they need to be reflared it seems. I got tired of fighting leaks so I just replaced the lines with steel braided hose.
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From: Spicer, MN
Car: '83 Berli, '84 Berli, '84 Z28 HO
Engine: L69, LG4, L69
Transmission: TH700-R4, TH700-R4, T-5
Axle/Gears: 3.08, 3.08, 3.73 Posi
how much did that hose cost you to replace the hardlines with. i have been thinking about that (getting tired of using the tube bender to bend the lines all over to match the factory bends...
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
There's about 6 feet of hose ($30), 4 hose ends ($6) and 4 adapters ($7), so around $82.
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Joined: Mar 2005
Posts: 1,121
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From: Spicer, MN
Car: '83 Berli, '84 Berli, '84 Z28 HO
Engine: L69, LG4, L69
Transmission: TH700-R4, TH700-R4, T-5
Axle/Gears: 3.08, 3.08, 3.73 Posi
ah ok.. considering the hardline fustrations.. might be nice to spend the little bit more.. Although I would have 4 pcs of hose.. 2 coming off the transmission. than two coupled to that and into each side of the cooler.. Mostly for ease of installing and removing the transmission so that you can put the line on before installation and then just connect the rest of the line afterwards without the pain that doing otherwise can cause.
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Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
You don't need 4 pieces, just 3. Leave some slack in the hoses so that you can connect them while the transmission is lowered
ARGH!!! i got it all hooked up, i used soft lines and adapter fittings, all hooked into the trans cooler and the damn thing still gets hotter than a ****... i got a 1705 cfm electric puller fan and when the car sits still, hot as hell... when its moving w/ the ac on... hot as hell... when its moving without ac, its fine... i just cant sit at any lights or run the AC... aside from a water pump, ive replaced and improved EVERY part of the cooling system wtf??
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Were you expecting that adding a transmission cooler was going to make a noticeable difference in engine temperature?
no, i knew that wasnt gunna do anything, just keep the transmission cooler, take some of the load off the radiator... but i did get a new 2 core aluminum one to replace the stock one... thats my main beef...
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From: Victorville, CA
Car: 85 Trans Am
Engine: 350 (CCC QJet)
Transmission: 700R4
Axle/Gears: 3.08 9 bolt
I dont know about others, but my car gets hot (240+ driving!) with over 2000CFM of fans here (Mojave Desert).
Hope that is taken car of soon (dual fans) or im putting my thermoclutch back on
Hope that is taken car of soon (dual fans) or im putting my thermoclutch back on
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Joined: Jul 2004
Posts: 742
Likes: 0
From: Victorville, CA
Car: 85 Trans Am
Engine: 350 (CCC QJet)
Transmission: 700R4
Axle/Gears: 3.08 9 bolt
Of course we also dont know what you mean by "hot"... 190?
Id say we you live, id be happy with 210 in traffic
Id say we you live, id be happy with 210 in traffic
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Joined: Mar 2005
Posts: 1,121
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From: Spicer, MN
Car: '83 Berli, '84 Berli, '84 Z28 HO
Engine: L69, LG4, L69
Transmission: TH700-R4, TH700-R4, T-5
Axle/Gears: 3.08, 3.08, 3.73 Posi
Originally posted by Apeiron
There's about 6 feet of hose ($30), 4 hose ends ($6) and 4 adapters ($7), so around $82.
There's about 6 feet of hose ($30), 4 hose ends ($6) and 4 adapters ($7), so around $82.
Originally posted by Apeiron
You don't need 4 pieces, just 3. Leave some slack in the hoses so that you can connect them while the transmission is lowered
You don't need 4 pieces, just 3. Leave some slack in the hoses so that you can connect them while the transmission is lowered
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
I'll post a disclaimer: Measure what you need instead of ordering based on my eyeballed measurements.
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Joined: Mar 2005
Posts: 1,121
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From: Spicer, MN
Car: '83 Berli, '84 Berli, '84 Z28 HO
Engine: L69, LG4, L69
Transmission: TH700-R4, TH700-R4, T-5
Axle/Gears: 3.08, 3.08, 3.73 Posi
72" either way should be more than plenty (especially for the lower one)
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