IS SHIFTPLUS HARD ON OUR CRANKS? - Transmission Forum

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IS SHIFTPLUS HARD ON OUR CRANKS?
Tuesday, March 29, 2005 8:44 AM
I was talking to a mechanic and he said that

"Z24s have strong engines, but still have the stock crankshaft, and when you kids are trying to soup up your cavaliers making them shift harder, your wrecking your crankshafts"

And this was a friend of my dad's, so I think I may have to take it out unless I have a compelling arguement, any ideas?


<img src=http://img.photobucket.com/albums/v502/brad_sk88/NewSig.jpg>

Re: IS SHIFTPLUS HARD ON OUR CRANKS?
Tuesday, March 29, 2005 8:55 AM
Mike Karas put 410hp and 400 some ft lbs of torque to the wheels with a stock crankshaft

So I think with anything you are doing, you're fine






Re: IS SHIFTPLUS HARD ON OUR CRANKS?
Tuesday, March 29, 2005 8:56 AM
tell that to my dad
Gonna talk to the guys at the transmission shop, see if I can sway them into convincing my dad (He'll believe anyone in a uniform, I think, heh)


<img src=http://img.photobucket.com/albums/v502/brad_sk88/NewSig.jpg>
Re: IS SHIFTPLUS HARD ON OUR CRANKS?
Tuesday, March 29, 2005 9:06 AM
Unless the torque convertor is locked up (which it isn't when shifting), there is NO ADDED STRESS on the crankshaft because the engine and transmission don't have a direct connection. I could go with it being harder on the clutch packs in the transmission, but there is no way its doing anything to the crankshaft. Not to mention, have you ever seen the stock crank? Its like 60lbs of cast iron.





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Re: IS SHIFTPLUS HARD ON OUR CRANKS?
Tuesday, March 29, 2005 9:36 AM
it can be alittle harder on the transmission, but its not going to harm the engine come hell or high water.


_______________________
** Flat Broke Racing Inc.**
Re: IS SHIFTPLUS HARD ON OUR CRANKS?
Tuesday, March 29, 2005 9:39 AM
Hey, guess what.
Canadian Tire ordered the WRONG ONE

ShiftPlus
Electronic Shift Improver
1993-1998 GM 4L60E/4L80E

Which one do I need then, is the number not 70380?
Transmission is 4T40E


<img src=http://img.photobucket.com/albums/v502/brad_sk88/NewSig.jpg>
Re: IS SHIFTPLUS HARD ON OUR CRANKS?
Wednesday, March 30, 2005 3:55 PM
its the right number man. look up a few post above this one there is an install with pictures and everything.you got the right stuff and the folks above know their stuff, they just don't have little
J-Body uniforms, maybe Dave will get them some for Christmas next year



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