Tranny shift in .4 seconds .... :)
Thread Starter
Team Owner
Joined: Apr 2001
Posts: 22,267
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From: Dallas TX
Tranny shift in .4 seconds .... :)
I just thought I would brag for those of us with automatics. Sure I wouldn't mind a 6spd, but this is awesome to me. BTW, I have a rebuilt transmission with some go fast parts like a TransGo Shift kit. :yesnod:
Graph one:
notice we are at record # 1274
Graph two:
notice we are at record # 1276
Datamaster is recording at 10 records per second alternating engine and tranny data, which means this tranny data is going at 5 records per second. 2/5 = .4 seconds :D
Chirps the tires every time :D :smash: :smash: :smash:
edit: .6 seconds, see below.
[Modified by Glock'94, 2:54 PM 7/9/2002]
[Modified by Glock'94, 2:32 PM 7/10/2002]
Graph one:
notice we are at record # 1274
Graph two:
notice we are at record # 1276
Datamaster is recording at 10 records per second alternating engine and tranny data, which means this tranny data is going at 5 records per second. 2/5 = .4 seconds :D
Chirps the tires every time :D :smash: :smash: :smash:
edit: .6 seconds, see below.
[Modified by Glock'94, 2:54 PM 7/9/2002]
[Modified by Glock'94, 2:32 PM 7/10/2002]
Le Mans Master
Joined: Jan 2000
Posts: 6,595
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From: Thornton CO
Re: Tranny shift in .4 seconds .... :) (Glock'94)
Did you change any of your tranny programming yet? I did some stuff to mine and I must say that GM makes some impressive tranny's! I amaze people all the time when I show them what my car can do and how fast the tranny shifts.
Team Owner
Joined: Nov 1999
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From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
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Re: Tranny shift in .4 seconds .... :) (Glock'94)
:cheers: I think :crazy: :crazy:
Thread Starter
Team Owner
Joined: Apr 2001
Posts: 22,267
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From: Dallas TX
Re: Tranny shift in .4 seconds .... :) (Glock'94)
Oops, i made a mistake, the transmission lets go of 1st gear one record before that, so it's actually .6 seconds for the shift to take place. The rpm's go up just slightly when it lets go of 1st.
btw, this run was only at 70% throttle ;)
btw, this run was only at 70% throttle ;)
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Joined: Mar 2000
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From: Hillsboro OR
Re: Tranny shift in .4 seconds .... :) (Glock'94)
You can probably make it shift faster but the rest of the drive line will not be too happy about it. I had a THM 350 shift kit that would shift so fast the trans would complete its shifting before the rear wheels even knew anything had happened. A chipped pinion gear tooth and one broken U joint later, I went to a step below 'street and strip' on the first to second shift.
Le Mans Master
Joined: Apr 2001
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From: Little Elm TX
Re: Tranny shift in .4 seconds .... :) (Glock'94)
Chirps the tires every time :D :smash: :smash: :smash:
If you'd shut off the ASR it might do more than just chirp them! :jester :jester :jester
The year before last when I replaced my clutch, I powershifted to 2nd and dang near got sideways because I wasn't expecting the tires to spin so much! :eek:
Thread Starter
Team Owner
Joined: Apr 2001
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From: Dallas TX
Re: Tranny shift in .4 seconds .... :) (R94 LT 1)
Chirps the tires every time :D :smash: :smash: :smash:
If you'd shut off the ASR it might do more than just chirp them! :jester :jester :jester
If you'd shut off the ASR it might do more than just chirp them! :jester :jester :jester
Team Owner
Joined: Nov 1999
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From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
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Cruise-In VII Veteran
Re: Tranny shift in .4 seconds .... :) (Glock'94)
You can even hear my new Frank Fernandez trans shift it so smooth.
But the real trick with these transmissions is not how hard they shift, you can control that with line pressure but the sercret is how FAST IT COMES OUT OF GEAR before it up shifts.
But the real trick with these transmissions is not how hard they shift, you can control that with line pressure but the sercret is how FAST IT COMES OUT OF GEAR before it up shifts.