Electronic Shift Firmness
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Electronic Shift Firmness
Changing sift firmness by various electronic means? Good or bad for your automatic transmission? Improvement in performance and driveability? Recommended?
Auto transmission experts weigh in.
Thanks
Auto transmission experts weigh in.
Thanks
Last edited by PGann; Feb 3, 2006 at 10:27 PM.
Le Mans Master
Joined: Oct 2004
Posts: 9,369
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From: Zephyrhills, Florida
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13
I'm way far from an expert, but you can kick things off with an inexpensive ( $120 ) bucks or so for a used hypertech hand held and play with a few basic functions such as this........
Team Owner
Joined: Apr 2001
Posts: 54,204
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From: S.W. Ohio. . . . . . NRA Life Member
interesting that i read many posts asking the same general A4 question:
"If I reprogram/shift-kit my A4 transmission - will it wear quicker? "
Of course it will. If you're gonna play, you gotz-ta pay. But that doesn't mean it will drastically shorten the A4's life. It all depends on the condition of the tranny at the moment you make the changes, and how hard you drive the car afterwards.
If you typically "get on it" 15% of the time; chances are that after a Predator/Hypertech/LS1Edit/Shift-Kit upgrade you'll be "getting on it" 50% of the time
since it makes such an improvement.
I guess one could ask - what causes the shortened tranny life... the upgrade, or the increased big grin hard driving afterwards.
"If I reprogram/shift-kit my A4 transmission - will it wear quicker? "
Of course it will. If you're gonna play, you gotz-ta pay. But that doesn't mean it will drastically shorten the A4's life. It all depends on the condition of the tranny at the moment you make the changes, and how hard you drive the car afterwards.
If you typically "get on it" 15% of the time; chances are that after a Predator/Hypertech/LS1Edit/Shift-Kit upgrade you'll be "getting on it" 50% of the time
since it makes such an improvement. I guess one could ask - what causes the shortened tranny life... the upgrade, or the increased big grin hard driving afterwards.
Drifting
Joined: Oct 2003
Posts: 1,540
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From: bloomfield nj
Originally Posted by PGann
I read some stuff that says it reduces slippage and heat, thus "prolonging" transmission life. Anybody buy this?
,to firm it up,you are bumping up the line pressure,you increase the heat in it.if you have a relatively low mileage car,it may survive for a while,if it's high mileage,it will blow.either way you will increase the wear not the life.if you rebuild it and upgrade it's internals,then you can get away with more line pressure.
short and sweet,to upshift-govenor pressure has to overcome throttle pressure.
downshift-throttle pressure has to overcome govenor pressure.
to go in reverse-the trans has to make it's highest pressure.
