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Tranny temps for A6 ?

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Old Jun 3, 2008 | 02:22 AM
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Default Tranny temps for A6 ?

What kind of temps should I be running. I was running almost the same as coolant temp. Then I added a Yank 3200 stall and a Big B & M cooler with fan. Now my tranny temps dont go any higher that 165. That seems too cool. Is that not normal operating temps for a tranny? It will not reach more than 165 at the track or a hot day of start and stop
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Old Jun 3, 2008 | 02:44 AM
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Originally Posted by GETUSUMM
What kind of temps should I be running. I was running almost the same as coolant temp. Then I added a Yank 3200 stall and a Big B & M cooler with fan. Now my tranny temps dont go any higher that 165. That seems too cool. Is that not normal operating temps for a tranny? It will not reach more than 165 at the track or a hot day of start and stop
Consider that a gift for a stock trans with a higher stall converter in it.
That is not too cool at all for an operating temp, it's almost perfect actually.
It might run slightly too cold in the extreme cold of winter but just go easy on it until it reaches it's warmest range in those situations.
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Old Jun 3, 2008 | 09:33 AM
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Sometimes on a cool night it may even read 130's. Its crazy. My other car ran 200-220. Crazy stuff. lol thanks
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Old Jun 3, 2008 | 09:51 AM
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Originally Posted by LS1LT1
Consider that a gift for a stock trans with a higher stall converter in it.
That is not too cool at all for an operating temp, it's almost perfect actually.
It might run slightly too cold in the extreme cold of winter but just go easy on it until it reaches it's warmest range in those situations.
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Old Jun 3, 2008 | 10:44 AM
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See if you can disable the fan on the B&M, you don't need it.

Also, did you keep the OEM cooler in the loop or bypass it completely? (Not all C6's have an OEM cooler though) Idealy you should add the B&M after the OEM cooler for better winter performance, IMO. The OEM is actually used to warm the trans fluid during cold weather.
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Old Jun 3, 2008 | 11:22 AM
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have the radiator 'warm' the fluid and then the B&M to keep it cool.

i read somewhere, a 20* drop in tranny temp can double the life of the FLUID.
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Old Jun 3, 2008 | 11:35 AM
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I took the factory cooler out of the loop. The fan does not kick on until 180-185. The tranny never sees that. I may get rid of the B & M and try just the factory cooler again. The damn car sees 230 degrees in stop and go traffic. I need to keep the car cool like the tranny is
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Old Jun 3, 2008 | 11:40 AM
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The B&M super coolers are great, i have one w/out the fan and the temps are anywhere between 130-155. Even after a 1/4 pass down the track.
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Old Jun 3, 2008 | 12:45 PM
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My tranny is running pretty cool with the 3200.... I'm not doing massive burnouts yet, but I hot lapped 4 passes at the track in 82-83 degree weather and the temperature only got to 205 degrees on the factory cooler. At that point, I decided that was enough.... I did add a 160 thermostat this week and turn the fans on earlier. It seems like my tranney is running about the same temps as I did with the stock converter.
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Old Jun 3, 2008 | 12:52 PM
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Originally Posted by xstang
My tranny is running pretty cool with the 3200.... I'm not doing massive burnouts yet, but I hot lapped 4 passes at the track in 82-83 degree weather and the temperature only got to 205 degrees on the factory cooler. At that point, I decided that was enough.... I did add a 160 thermostat this week and turn the fans on earlier. It seems like my tranney is running about the same temps as I did with the stock converter.
Rick,

Do the 08`s with the Z51 package have tranny coolers in the A6?

The reason why i ask is, after i made one pass with a decent burnout, i seen temps shoot up to 210 degrees. Now after the cooler, temps stay right around 150-160 after a pass with a decent burnout.

Last edited by Tony B4; Jun 3, 2008 at 12:55 PM.
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Old Jun 3, 2008 | 12:53 PM
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Originally Posted by xstang
My tranny is running pretty cool with the 3200.... I'm not doing massive burnouts yet, but I hot lapped 4 passes at the track in 82-83 degree weather and the temperature only got to 205 degrees on the factory cooler. At that point, I decided that was enough.... I did add a 160 thermostat this week and turn the fans on earlier. It seems like my tranney is running about the same temps as I did with the stock converter.

Thats good to know. I think I am going to take the cooler off. What gear do you have? How do you like the converter?
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Old Jun 3, 2008 | 12:57 PM
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Originally Posted by GETUSUMM
Thats good to know. I think I am going to take the cooler off. What gear do you have? How do you like the converter?
I have the stock 2.73s(Z51) with the 3200 Vigilante......

I love the converter... It has so much pep down low now... It reminds me of a M3 in sport mode!

Last edited by xstang; Jun 3, 2008 at 01:05 PM.
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Old Jun 3, 2008 | 01:00 PM
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Originally Posted by Tony B4
Rick,

Do the 08`s with the Z51 package have tranny coolers in the A6?

The reason why i ask is, after i made one pass with a decent burnout, i seen temps shoot up to 210 degrees. Now after the cooler, temps stay right around 150-160 after a pass with a decent burnout.
Tony,

My understanding is the Z51 has the same cooler as any other A6. I bet the burnouts are causing the temps to rise more quicky. I need to get my Drag radials on so I can test it

or

It could be that your temps rise faster because the converter is slipping a tad more with the 2:56s.. Just a thought...

Last edited by xstang; Jun 3, 2008 at 01:05 PM.
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Old Jun 3, 2008 | 01:07 PM
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Originally Posted by xstang
Tony,

My understanding is the Z51 has the same cooler as any other A6. I bet the burnouts are causing the temps to rise more quicky. I need to get my Drag radials on so I can test it
Once you get the drag radials on there and do a decent burnout, your going to see the temps jump up.

Once i had the b&m installed, now i can burn them up and not worry about hot tranny temps.
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Old Jun 3, 2008 | 01:10 PM
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Originally Posted by Tony B4
Once you get the drag radials on there and do a decent burnout, your going to see the temps jump up.

Once i had the b&m installed, now i can burn them up and not worry about hot tranny temps.
Yeah, the B&M is the ticket... I have to get a cooler at some point...
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Old Jun 3, 2008 | 06:17 PM
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Originally Posted by GETUSUMM
I may get rid of the B & M and try just the factory cooler again.
Why? Just add the OEM back into the loop before the B&M cooler (if you can't reuse the trans lines near the rad they're only about $40 from GM for replacements with the correct fitting). The OEM will drag super high temps down to your coolant range quickly and the B&M will then drop it another 20* or better.

In the winter, the OEM will raise the trans temp up to operating temp faster and the B&M is designed to allow thick fluid to bypass most of the cooler.

If you go back to stock, you'll be exactly where you started. If the B&M is working "too well", simply cover up some of the fins until you get it where you want it.

Last edited by C5pilot; Jun 3, 2008 at 06:20 PM.
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Old Jun 3, 2008 | 06:25 PM
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Originally Posted by C5pilot
Why? Just add the OEM back into the loop before the B&M cooler (if you can't reuse the trans lines near the rad they're only about $40 from GM for replacements with the correct fitting). The OEM will drag super high temps down to your coolant range quickly and the B&M will then drop it another 20* or better.

In the winter, the OEM will raise the trans temp up to operating temp faster and the B&M is designed to allow thick fluid to bypass most of the cooler.

If you go back to stock, you'll be exactly where you started. If the B&M is working "too well", simply cover up some of the fins until you get it where you want it.

Winter is not a problem. Our coldest days may be mid 30's for a couple of days. As for the factory cooler, I wanted to move/remove the B & M because it is blocking the air to the radiator. Now the car runs 230 and the tranny runs 130-160 ish. What a crotch !
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Old Jun 3, 2008 | 07:25 PM
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Originally Posted by GETUSUMM
As for the factory cooler, I wanted to move/remove the B & M because it is blocking the air to the radiator. Now the car runs 230 and the tranny runs 130-160 ish. What a crotch !
...But the OEM cooler will actually transfer heat from the coolant to the trans fluid whenever it's higher. By taking it out of the loop, you reduced your overall engine cooling. So engine temps go up faster under a heavy load, and trans fluid goes lower because the trans wasn't your main source of heat and now has it's own oversized cooler.

The OEM will help keep them balanced and the B&M will then lower the trans from the coolant temp. Try it, you won't regret it.
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Old Jun 3, 2008 | 08:23 PM
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the cooler the better, that means your trans fluid is not breaking down and protecting that trans
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Old Jun 3, 2008 | 08:38 PM
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anyone have a link to the cooler install and a part number or anything else to look out for? thanks
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