Upgrade from 4t60e-hd to a 4t65e-hd??? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 02-07-2006, 10:50 AM   #11
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As I understand, there is a Non-ECM 4T60 transaxle, or they have been converter to Non-ECM; that has been used in FWD GM drag cars for NHRA Stock Eliminator. There are two guys that have built them and have held records with late model FWD; Mark Yacavone and Mike Senia. I do not know if they have kept the auto feature, or are manually shifted.
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Old 02-07-2006, 11:16 AM   #12
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The 4T60E is derived from the 4T60 (better known as the trans in the 87-91 Bonnevilles). The only PCM control is for TCC lockup in OD.
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Old 02-07-2006, 12:19 PM   #13
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I'm looking into see fi this will support my transmission.

http://www.powertraincontrolsolution...content-4.html

They have my transmission listed in the page code, but not on the page. They also have contridicting info on the 4l60 as well listed on the page. I sent then an e-mail so hopefully they can let me know.
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Old 02-07-2006, 07:43 PM   #14
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Both the 60 and 65 have thier issues. The 4T60'* main issue is the "chugging" under load with the TC locked. The 4T65'* main problem is loss of fluid pressure.
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Old 02-07-2006, 07:59 PM   #15
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Quote:
Originally Posted by fantastic88
Both the 60 and 65 have thier issues. The 4T60'* main issue is the "chugging" under load with the TC locked. The 4T65'* main problem is loss of fluid pressure.
Loss of pressure? Do you mean a faulty pressure solenoid?(What replaced the vac modulator)
The 4T65'* seem to be doing much better mantaining pressure at higer rpms then the 60.
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Old 02-07-2006, 08:03 PM   #16
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Quote:
Originally Posted by ssei1995
As I understand, there is a Non-ECM 4T60 transaxle, or they have been converter to Non-ECM; that has been used in FWD GM drag cars for NHRA Stock Eliminator. There are two guys that have built them and have held records with late model FWD; Mark Yacavone and Mike Senia. I do not know if they have kept the auto feature, or are manually shifted.
are you refering to the 440T4 hydrostaticly controlled transaxle? or the 4T60 (non electronic)?
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Old 02-07-2006, 08:06 PM   #17
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Quote:
Originally Posted by 95naSTA
Quote:
Originally Posted by fantastic88
Both the 60 and 65 have thier issues. The 4T60'* main issue is the "chugging" under load with the TC locked. The 4T65'* main problem is loss of fluid pressure.
Loss of pressure? Do you mean a faulty pressure solenoid?(What replaced the vac modulator)
The 4T65'* seem to be doing much better mantaining pressure at higer rpms then the 60.
i cant recall 100% but i believe the 4t60/e etc have 7 vane front pumps where'as the 65 and 80 have 10 vanes

i got a front pump from TCI for my TH400 with 5 more vanes than stock because of my trans brake...along with the 32 roller sprag...
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Old 02-07-2006, 09:16 PM   #18
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[quote="Turbocharged400sbc"]
Quote:
Originally Posted by ssei1995

are you refering to the 440T4 hydrostaticly controlled transaxle? or the 4T60 (non electronic)?
The 44T4 and 4T60 (nonE) are one and the same. 2 names for the same trans.
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Old 02-07-2006, 11:41 PM   #19
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I received a reply from http://www.powertraincontrolsolutions.com/ and he stated that they DO have teh harness for my specific transmisssion and their controller will control all the functions of it. The only bad news is there is a 2 day wait to ship... lol With this said, I can stick with a built up 4t60e-hd (like theHD would actually matter any more) and not have to worry about a swap.
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