| | Need to make my 1-2 shift faster |  |
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JRS9C1
Posts : 434
Join date : 2009-01-20
Age : 34
Location : Bethel ME
| | Subject: Need to make my 1-2 shift faster Mon Apr 25, 2011 9:33 pm | |
| Right now 1-2 shift takes about 0.68 - 0.7 seconds and I'd like to see .3 taken off that time before drag day. What kit can I get that speeds up only 1-2 shift? 2-3, as well as 3-4 are quick enough and don't need any modification. | |
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V8Killer
Posts : 1691
Join date : 2009-03-12
Age : 52
Location : Southern, NH
| | Subject: Re: Need to make my 1-2 shift faster Wed Apr 27, 2011 4:21 pm | |
| - JRS9C1 wrote:
- Right now 1-2 shift takes about 0.68 - 0.7 seconds and I'd like to see .3 taken off that time before drag day. What kit can I get that speeds up only 1-2 shift? 2-3, as well as 3-4 are quick enough and don't need any modification.
If you already have a trans that has higher mileage on it, & has a long 1-2 shift you might be out of luck. If the band is already cooked your going to have a up-hill battle. A shift-kit should help, as well as bringing up the line pressure (which can be achieved several ways), a trans flush is a good idea too. As far as servos go you need at least the Corvette servo. | |
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JRS9C1
Posts : 434
Join date : 2009-01-20
Age : 34
Location : Bethel ME
| | Subject: Re: Need to make my 1-2 shift faster Wed Apr 27, 2011 4:33 pm | |
| Al, Trans has 119k on it, has increased line pressure through a tune. 4.11s help take the load off it a bit. 2-3 and 3-4 shift great but it's just my 1-2. Car has the vette servo in it. I was just thinking of shimming the spring in the 1-2 accumulator to acheive a quicker shift. Ideally I'd like to have it done for drag day  | |
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Fishah
Posts : 1118
Join date : 2009-01-20
Age : 36
Location : Chicago, IL
| | Subject: Re: Need to make my 1-2 shift faster Wed Apr 27, 2011 5:08 pm | |
| Replace the trans with one that doesn't have 120k. | |
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V8Killer
Posts : 1691
Join date : 2009-03-12
Age : 52
Location : Southern, NH
| | Subject: Re: Need to make my 1-2 shift faster Wed Apr 27, 2011 7:26 pm | |
| - JRS9C1 wrote:
- Al,
Trans has 119k on it, has increased line pressure through a tune. 4.11s help take the load off it a bit. 2-3 and 3-4 shift great but it's just my 1-2.
Car has the vette servo in it. I was just thinking of shimming the spring in the 1-2 accumulator to acheive a quicker shift. Ideally I'd like to have it done for drag day You can shim the accumulator, heck B&M shift kits remove the springs & you install sleeves so the piston does'nt move at all! The down side when you do that is part-throttle shifts, and down shifts are WAAY to hard. Makes the car suck to drive. | |
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JRS9C1
Posts : 434
Join date : 2009-01-20
Age : 34
Location : Bethel ME
| | Subject: Re: Need to make my 1-2 shift faster Wed Apr 27, 2011 8:18 pm | |
| Ok gotcha. So let me ask you this...does removing accumulation hurt the transmission/hard parts? Am I going to be damaging anything @ part throttle with accumulation deleted altogether? I think I remember reading it's simply put there in the first place so the customer has an 'enjoyable' shift. | |
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bowtiepimp
Posts : 1568
Join date : 2010-06-19
Age : 39
Location : working a corner near you
| | Subject: Re: Need to make my 1-2 shift faster Thu Apr 28, 2011 1:14 pm | |
| Faster gears?  ......... thats scary....... I seen what you did to the old mans tranny.......   OUCH!...... | |
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JRS9C1
Posts : 434
Join date : 2009-01-20
Age : 34
Location : Bethel ME
| | Subject: Re: Need to make my 1-2 shift faster Thu Apr 28, 2011 4:35 pm | |
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