Torque Converters
Thread Starter
Burning Brakes
Joined: Nov 2002
Posts: 1,164
Likes: 184
From: Ohio
Torque Converters
Quick question. Thinking about a stall converter for my twin turbo car. Under normal driving conditions do they build up heat or just when you beat on them. Not interested installing a cooler
Thanks
Thanks
Pro
Joined: Feb 2009
Posts: 651
Likes: 33
From: North Port Florida
con erter
you need an external cooler.
Last edited by kh400; Feb 9, 2018 at 07:35 PM.
Safety Car
Joined: Jun 2004
Posts: 4,983
Likes: 393
From: Stoney Creek Ontario
I run a basic cheap a$$ cooler on mine , easy to install and not expensive....trans temps fine when driving normal around the city etc....helps at the track a bit as well....I run a 3800 stall though, likely higher than you'll go with a turbo car...
Burning Brakes
Joined: Sep 2011
Posts: 764
Likes: 19
From: odessa FL
What I have observed with a few vehicles with trans temp gauges is that its mostly load dependent. Under cruise conditions and particularly wiht a lockup type converter, not much higher. But in stop and go city traffic it does go up.
Id get a cooler
Id get a cooler
Pro
Joined: Aug 2014
Posts: 604
Likes: 25
Second the cooler. Its when its unlocked that it really builds up heat. Here are some scenarios to consider:
I have a long stretch of rural road to get to the interstate and initial tune it wasnt locking up until 55+ and tranny temps would climb substantially even under light load. I have modified my shifting/lockup tables so that mine locks up at relatively low speeds (45 mph) when lightly cruising.
I watch tranny fluid outlet temp to cooler as well as tranny temp from DIC. The outlet temp is much higher under spirited runs (like at the drag strip) even tho tranny temp shows normal. Without a cooler, you would cook the tranny pretty quickly.
I have a long stretch of rural road to get to the interstate and initial tune it wasnt locking up until 55+ and tranny temps would climb substantially even under light load. I have modified my shifting/lockup tables so that mine locks up at relatively low speeds (45 mph) when lightly cruising.
I watch tranny fluid outlet temp to cooler as well as tranny temp from DIC. The outlet temp is much higher under spirited runs (like at the drag strip) even tho tranny temp shows normal. Without a cooler, you would cook the tranny pretty quickly.
Safety Car
Joined: Oct 2007
Posts: 4,206
Likes: 1,075
From: South Florida
as an example, 4l80e should stay around 160*F I believe. 160-180 perhaps. I've read that anything over 200* cuts it's life in half for every so many degrees or whatever... point was to keep it cool is absolutely the most important part after the quality 9.5" Yank/Vig converter
Last edited by Kingtal0n; Feb 14, 2018 at 03:57 PM.
Drifting
Joined: Sep 2009
Posts: 1,330
Likes: 61
From: Nantucket MA
I run a 3200 stall on my TT vette with a 4L80e. There's no reason NOT to run a cooler. I run a quality Derale trans cooler with a fan mounted right at the radiator inlet duct. Works mint....
- Travis
- Travis
Pro
Joined: Sep 2014
Posts: 513
Likes: 11
From: Hills of Tennessee TN
Cooler
Thanks
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Platinum Supporting Vendor
Joined: Jul 2011
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My experience is:
If you have an automatic trans, install a external trans cooler period.
I had boosted vettes with 2 external trans cooler back at my shop in TX.
I never like to see trans temps go over 190* even when beating on it.
If you have an automatic trans, install a external trans cooler period.
I had boosted vettes with 2 external trans cooler back at my shop in TX.
I never like to see trans temps go over 190* even when beating on it.
Pro
Joined: Sep 2014
Posts: 513
Likes: 11
From: Hills of Tennessee TN
Tranny cooler
Thanks
Platinum Supporting Vendor
Joined: Jul 2011
Posts: 2,077
Likes: 227
Here is a Hayden #679 that works really well.
If you don't have coolant temp issues you can mount one here.
***
If you can't stack anything in front then use the fog light openings area for a in-bumper cooler.
If you don't have coolant temp issues you can mount one here.
***
If you can't stack anything in front then use the fog light openings area for a in-bumper cooler.
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