Ever changing A4 2-3 shift points??
Thread Starter
Melting Slicks
Joined: May 2001
Posts: 2,596
Likes: 120
From: East Tennessee
Ever changing A4 2-3 shift points??
Been making a lof atap runs lately and have noticed my 2-3 shift points vary from 5600 to 6000rpm (81-87mph). I have an HPP3 and have it set to +1mph right now. It seems like everytime I make a few blasts nailing it from a 60mph roll the 2-3 shift point keeps getting lower. The MAF flow is staying constant and there are no misfires or anything. Only thing I see changing is the trans temp gets a little over 200 (90 degrees out), I never had this happen with my LS1 F-bodies. BTW the 1-2 shift is always at ~6000 rprm no matter what. I'm just curious what tells the trans to upshift and why such a huge variation in 2-3 shift mph/rpm? There has to be more factors involved in an upshift then just MPH to get such a variation I would think.
Melting Slicks
Joined: Feb 2001
Posts: 3,360
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From: DFW TX
Senior Member
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Cruise-In IV Veteran
Re: Ever changing A4 2-3 shift points?? (kp)
There has to be more factors involved in an upshift then just MPH to get such a variation I would think.
[Modified by Godspeed, 11:42 PM 8/19/2002]
Thread Starter
Melting Slicks
Joined: May 2001
Posts: 2,596
Likes: 120
From: East Tennessee
Re: Ever changing A4 2-3 shift points?? (Godspeed)
I figured there was more to it then just simple MPH - Just waiting for ls1-edit to get here, been a couple weeks now so it should be any day :)
Safety Car
Joined: Aug 2000
Posts: 4,154
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From: Murphy TX
Cruise-In II Veteran
Re: Ever changing A4 2-3 shift points?? (kp)
So it has two conditions to satisfy... It should still not be "ever changing" and will almost certainly satisy one of them first, regularly.
Safety Car
Joined: Oct 2000
Posts: 4,949
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From: Monticello MN
Re: Ever changing A4 2-3 shift points?? (kp)
Been making a lof atap runs lately and have noticed my 2-3 shift points vary from 5600 to 6000rpm (81-87mph). I have an HPP3 and have it set to +1mph right now. It seems like everytime I make a few blasts nailing it from a 60mph roll the 2-3 shift point keeps getting lower.
Ed
