4L80, how strong?
04-27-2010, 08:43 AM
#6
i rebuilt mine myself, no new hard parts, just good clutches, new bushings, couple minor updated bushings, and a TCI HD-2 kit, been in over a year now, made a few passes with the Procharged 403, makes 617 RWHP, had the pan off a couple times, no burnt crap anywhere
i use a 10" FTI converter
i use a 10" FTI converter
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04-27-2010, 09:13 AM
#8
slow67's post is correct.
500 is the limit on a stock one due to the apply area of the 3rd gear clutches.
The TransGo HD-2 Kit fixes this, or a good rebuild using the proper methods.
The next issue becomes the stock input shaft. It's USUALLY good for about 750-800 lb/ft of torque.
Some break behind stock 6.0Ls in towing applications, others live at 1000 HP.
A turbo car is easier on parts, N2O car is harder, so that fudges the numbers around.
You should replace the forward hub at the same time as the input shaft.
It is advisable to use both if using a transbrake.
500 is the limit on a stock one due to the apply area of the 3rd gear clutches.
The TransGo HD-2 Kit fixes this, or a good rebuild using the proper methods.
The next issue becomes the stock input shaft. It's USUALLY good for about 750-800 lb/ft of torque.
Some break behind stock 6.0Ls in towing applications, others live at 1000 HP.
A turbo car is easier on parts, N2O car is harder, so that fudges the numbers around.
You should replace the forward hub at the same time as the input shaft.
It is advisable to use both if using a transbrake.
04-27-2010, 07:42 PM
#10
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Wanted to add some questions in instead of making a new thread on the same topic hope ya don't mind. Ive searched and went through about ten pages of threads, some say use the alto clutches and kolene steels some say they are junk and to use the stock replacements from borg warner. So i don't know which to believe haha. Building mine to go behind a turbo 5.3l if that matters.
04-27-2010, 11:22 PM
#11
Alto reds are "OK".
They are marginally better than a stock tan Borg Warner clutch in a TH400, TH350, 4L80E application.
They seem to have SLIGHTLY better resistance to heat/slipping, but if they ever flare, they are DONE.
This is based on plenty of experience with the 200-4R's.
The 4L60E builders here can relate their experiences with them in the 3-4 pack of a 700/4L60E and the Alto Power Pack most of us tried when it was new.
You want to use a carbon graphite based clutch plate. Good shifting characteristics with excellent heat resistance.
They are marginally better than a stock tan Borg Warner clutch in a TH400, TH350, 4L80E application.
They seem to have SLIGHTLY better resistance to heat/slipping, but if they ever flare, they are DONE.
This is based on plenty of experience with the 200-4R's.
The 4L60E builders here can relate their experiences with them in the 3-4 pack of a 700/4L60E and the Alto Power Pack most of us tried when it was new.
You want to use a carbon graphite based clutch plate. Good shifting characteristics with excellent heat resistance.
04-28-2010, 03:16 PM
#13
Wanted to add some questions in instead of making a new thread on the same topic hope ya don't mind. Ive searched and went through about ten pages of threads, some say use the alto clutches and kolene steels some say they are junk and to use the stock replacements from borg warner. So i don't know which to believe haha. Building mine to go behind a turbo 5.3l if that matters.
04-28-2010, 06:44 PM
#14
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Alto reds are "OK".
They are marginally better than a stock tan Borg Warner clutch in a TH400, TH350, 4L80E application.
They seem to have SLIGHTLY better resistance to heat/slipping, but if they ever flare, they are DONE.
This is based on plenty of experience with the 200-4R's.
The 4L60E builders here can relate their experiences with them in the 3-4 pack of a 700/4L60E and the Alto Power Pack most of us tried when it was new.
You want to use a carbon graphite based clutch plate. Good shifting characteristics with excellent heat resistance.
They are marginally better than a stock tan Borg Warner clutch in a TH400, TH350, 4L80E application.
They seem to have SLIGHTLY better resistance to heat/slipping, but if they ever flare, they are DONE.
This is based on plenty of experience with the 200-4R's.
The 4L60E builders here can relate their experiences with them in the 3-4 pack of a 700/4L60E and the Alto Power Pack most of us tried when it was new.
You want to use a carbon graphite based clutch plate. Good shifting characteristics with excellent heat resistance.
