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-   -   Transmission is out again (https://www.corvetteforum.com/forums/c5-tech/4274496-transmission-is-out-again.html)

4deatr 05-15-2019 02:38 PM

Transmission is out again
 
I need to replace my transmission this would be my 4th one. I had one under warranty one out of pocket after that one went bad I got a RPM stage 6 and now that one is gone with less then 20000 miles on it. The car has 647 rwhp super charged. I'm so sick of this I can't stand it. No one knows why it happen and rpm has not been any help just told me I need to get a better one. I really don't want to give them any more money. Does anyone else have a place that I can get a new or rebuild trans for a 2001 auto. Thanks

oharal 05-15-2019 03:52 PM

What are you doing with it? Daily driver duty? Guessing with 650whp you are beating the crap out of it. What is failing? the clutches? Do you have a trans cooler? Need way more detail here.

JR-01 05-15-2019 04:20 PM


Originally Posted by 4deatr (Post 1599407071)
I need to replace my transmission this would be my 4th one. I had one under warranty one out of pocket after that one went bad I got a RPM stage 6 and now that one is gone with less then 20000 miles on it. The car has 647 rwhp super charged. I'm so sick of this I can't stand it. No one knows why it happen and rpm has not been any help just told me I need to get a better one. I really don't want to give them any more money. Does anyone else have a place that I can get a new or rebuild trans for a 2001 auto. Thanks

I know why it happens.

001pewter 05-15-2019 04:22 PM

No help but good luck getting all that sorted out. Seems like a real headache.

Jackie N 05-15-2019 05:16 PM

What's breaking? And under what condition specifically?

road pilot 05-15-2019 06:11 PM

I run big hp with no problems. Try Finish Line Transmission. In ILL
Check LS1 Tech,alot of good reference's
Good luck.

K-Spaz 05-15-2019 10:09 PM

I can't help ya with your problem, but if it makes you feel any better, I'm get'n ready to put a new one in mine and it'll probably cost 4x as much as your did. :lol:

Forcedvert 05-15-2019 10:27 PM

Are you running a big stall? Do you have a cooler? I have a RPM level VI at about 550hp/Tq and beat the hell out of it but I needed a separate power cooler to keep it cool mounted under the headlight. From what I've heard heat is what kills these.

4deatr 05-16-2019 07:47 AM

Drive it very little don't track it car shows and spirited only. I have a trans cooler everything was done right. I don't know what failed yet it has not be open yet.

4deatr 05-16-2019 07:50 AM


Originally Posted by Forcedvert (Post 1599409668)
Are you running a big stall? Do you have a cooler? I have a RPM level VI at about 550hp/Tq and beat the hell out of it but I needed a separate power cooler to keep it cool mounted under the headlight. From what I've heard heat is what kills these.

I do have a cooler the biggest i can fit. I never really see it get that hot. right now it slipping no matter the rmp

oharal 05-16-2019 09:14 AM

What was the failure mode of the other transmissions?

frodo84 05-16-2019 03:38 PM

Sorry about your trans
 
Don't know if you're interested but.....

https://www.corvetteforum.com/forums...l-6-4l60e.html

road pilot 05-16-2019 05:50 PM


Originally Posted by Forcedvert (Post 1599409668)
Are you running a big stall? Do you have a cooler? I have a RPM level VI at about 550hp/Tq and beat the hell out of it but I needed a separate power cooler to keep it cool mounted under the headlight. From what I've heard heat is what kills these.

YES
Good luck

K-Spaz 05-17-2019 09:30 AM

Sounds to me like something in the trans tune is fubar'd. These things just don't fail on the street 3x because you got on it a little.

JR-01 05-17-2019 09:47 AM


Originally Posted by K-Spaz (Post 1599417467)
Sounds to me like something in the trans tune is fubar'd. These things just don't fail on the street 3x because you got on it a little.

647 rwhp. It lasted 20K miles. I wouldn't expect it to last much longer than that.

K-Spaz 05-17-2019 01:00 PM


Originally Posted by JR-01 (Post 1599417531)
647 rwhp. It lasted 20K miles. I wouldn't expect it to last much longer than that.

Being it's the 4th one, and that I don't recall lots of other folks saying a trans will only live 20k, I'm inclined to think something is amiss.

4deatr 05-17-2019 02:00 PM

When we open it up we will see. I know I will not use RPM that's for sure

oharal 05-17-2019 03:22 PM

What was the failure mode of the other 3 transmissions? Do you have a way to monitor transmission temp?

Mick14 05-17-2019 07:27 PM

You have something else going on. I would say it is the tune. No way you should be going through trannies like that

Forcedvert 05-18-2019 12:46 AM


Originally Posted by oharal (Post 1599419480)
What was the failure mode of the other 3 transmissions? Do you have a way to monitor transmission temp?

You can see it right in the DIC, mine ran hot 230* and climbing with a passive cooler mounted to the radiator so I put a powered fan one (B&M I think) under the headlight and now stays well under 200* 185* most of the time. You remove the brake duct and vent into the wheel well, it works great.


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