transmission cooling question
Thread Starter
Le Mans Master
Joined: Aug 2004
Posts: 5,412
Likes: 1
From: Just moved back to the "old country"
transmission cooling question
Last year I ran my C6 at a road track for the first time. I have an A4. The tranny temp got up there a bit and I am interested in cooling it some this year. I thought for some reason the Z51 had some additional Trans cooling but appears I am mistaken?
any hints from anyone here what I might do or what trans cooler I might buy and from whom?
any hints from anyone here what I might do or what trans cooler I might buy and from whom?
Team Owner
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
Originally Posted by tjfontaine
Last year I ran my C6 at a road track for the first time. I have an A4. The tranny temp got up there a bit and I am interested in cooling it some this year. I thought for some reason the Z51 had some additional Trans cooling but appears I am mistaken?
any hints from anyone here what I might do or what trans cooler I might buy and from whom?
any hints from anyone here what I might do or what trans cooler I might buy and from whom?
Racer
Joined: Nov 2005
Posts: 293
Likes: 0
165 thermostate, and computer tune to turn on the fans at 185 degrees, and my tranny doesn't make it into 200 any more. Used to run at 220 to 240 when stock.
And yes there is a small fluid cooler on the back of the radiator for the Z51's autos, then it plugs into the radiator before going back to the tranny.
And yes there is a small fluid cooler on the back of the radiator for the Z51's autos, then it plugs into the radiator before going back to the tranny.
Team Owner
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
Originally Posted by hodgeee
165 thermostate, and computer tune to turn on the fans at 185 degrees, and my tranny doesn't make it into 200 any more. Used to run at 220 to 240 when stock.
And yes there is a small fluid cooler on the back of the radiator for the Z51's autos, then it plugs into the radiator before going back to the tranny.
And yes there is a small fluid cooler on the back of the radiator for the Z51's autos, then it plugs into the radiator before going back to the tranny.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
The oil and trans cooler of the Z51 are fine for normal spirited driving. But if your going to do a lot of track events( hope you do) you may wish to consider getting a bigger cooler.
In the mean time replace the trans fluid with synthtic ATF and the diff with synthtic gear oil. That will help quite a bit.
I have a manual switch on my C5 to turn on the trans cooler pump and a switch to turn on the oil cooler / accusump. A must for dedicated track / race cars.
In the mean time replace the trans fluid with synthtic ATF and the diff with synthtic gear oil. That will help quite a bit.
I have a manual switch on my C5 to turn on the trans cooler pump and a switch to turn on the oil cooler / accusump. A must for dedicated track / race cars.
Drifting
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
you could always try 60/40 water /antifreeze with water wetter...i am in az and had in the past 8 years ran 75/25 water antifreeze with water wetter. you of course do see snow so you need to be careful if you do decide to play with different water antifreeze mixture.
Thread Starter
Le Mans Master
Joined: Aug 2004
Posts: 5,412
Likes: 1
From: Just moved back to the "old country"
Some good ideas thanks guys! It got up to ~ 235 or so - Iwould pull over and let it cool off ... I met a guy with an A4 who added a tranny cooler but I don't know what brand, where he got it, etc - so looking at that if anyone knows any more about this.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Thread Starter
Le Mans Master
Joined: Aug 2004
Posts: 5,412
Likes: 1
From: Just moved back to the "old country"
Originally Posted by AU N EGL
The oil and trans cooler of the Z51 are fine for normal spirited driving. But if your going to do a lot of track events( hope you do) you may wish to consider getting a bigger cooler.
In the mean time replace the trans fluid with synthtic ATF and the diff with synthtic gear oil. That will help quite a bit.
I have a manual switch on my C5 to turn on the trans cooler pump and a switch to turn on the oil cooler / accusump. A must for dedicated track / race cars.
In the mean time replace the trans fluid with synthtic ATF and the diff with synthtic gear oil. That will help quite a bit.
I have a manual switch on my C5 to turn on the trans cooler pump and a switch to turn on the oil cooler / accusump. A must for dedicated track / race cars.
Racer
Joined: Nov 2005
Posts: 293
Likes: 0
Originally Posted by VET4LES
On my MN6 Z51 that cooler is for the power steering.
Team Owner
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
Originally Posted by hodgeee
I know of the power steering cooler, doesn't your's also have a cooler that the tranny fluid cooler also goes into before it goes into the bottom of the radiatorl. Man I need a camera to take some pics!
Melting Slicks
Joined: Nov 2003
Posts: 3,375
Likes: 1
From: Northern CA
Originally Posted by VET4LES
No. My MN6 goes in the top of the radiator and out the bottom. The little cooler behind the radiator is for the power steering. I am talking about mine, I don't know how the auto works.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Originally Posted by tjfontaine
Where did you get your cooler / what brand and what brand synthetic ATF do you recommend?
trans cooler has an electic pump in the right rear wheel well.
trans cooler left, AC condensor/ radiator center, oil cooler right
Accu-sump left front wheel well
DRM brake duct cooling extensions
any time additional cooling, engine, oil, trans, diff or brakes, that can be added it will help. No not a lower t-stat, as when you are driving that makes no difference.
Oh dont forget to blow out the radiators and ac condensor with a high pressure air hose to get the sand and dirt out. screens only keep grass and Mikky D cups out.
After one weekend on the track and this much dirt came out ( on floor)
Yes my C5 is a dedicated track HPDE car and I seldom drive it on the road. But any bit of additional cooling will help for street driving in hot climets.