Automatic trans shifting

Tim H · 08-02-2016, 06:42 PM

I am wondering if any of the Stock racers have ever set their transmissions up to shift automatically.Just finished watching the video of Sterling Simmons C/SA (in the magazine portion of this site) and you can clearly hear the rpm change yet the shifter handle doesn't seem to move. Would the computer in the car be controlling the shifts with the shifter left in "D" or ?

Alan Roehrich · 08-02-2016, 06:56 PM

In Stock Eliminator, cars originally equipped with automatic transmissions that were shifted electronically by the computer as delivered from the factory can use "E-shift" systems, even on transmissions that were not original to the car, and did not originally have "E-shift". So a late model EFI car can use "E-shift", but an older carburetor equipped car cannot. Some older cars are equipped with "auto 1-2" valve bodies. Those cars leave the starting line with the shifter in 2nd, but the car leaves in 1st, then shifts to 2nd at a pre set RPM. The "auto 1-2" feature is controlled by the governor and the vacuum modulator in most cases.

Mickey Whaley · 08-03-2016, 10:36 AM

I think paul forte at Turbo Action lobbied to make it legal for the older cars but got shot down I think if they can have we should too C/sa

FireSale · 08-03-2016, 11:19 AM

My Opinion: Stock trans with OEM electric shift is OK unmodified. Otherwise, all transmission shift upgrades should be driver activated. It's called racing, not programming for Gods sake.

Dale

Coleydog · 08-03-2016, 12:30 PM

What about a stock 727 ? No plates or vb just put it in drive and go.

Tim H · 08-03-2016, 07:54 PM

Quote:

Originally Posted by Coleydog

What about a stock 727 ? No plates or vb just put it in drive and go.

I am not a Mopar racer but I doubt a stock 727 trans will shift automatically at 6500 rpm or so without modifications. Most of the older OE trans shift far too low in the rpm range for use with a stocker camshaft.

Larry Hill · 08-03-2016, 09:47 PM

I wonder if Helms, Hughes, Waldo and the rest had auto shift.

novassdude · 08-03-2016, 09:54 PM

I have a turbo 400 that has the modulator and weights set up so that it will shift at 5800 just putting it in drive and go. We have the electric kick-down on a switch if you turn the switch on it shifts at 6500 both shifts. Takes some testing to get them right but works great once you have it.

Alan Roehrich · 08-03-2016, 10:11 PM

Quote:

Originally Posted by Larry Hill

I wonder if Helms, Hughes, Waldo and the rest had auto shift.

Mike Taylor 3601 · 08-04-2016, 09:41 AM

I know Paul Crowe set some up to shift their self,just leave in drive and go.

I have always thought it was funny all these guys talking about they had to have rpm activated air shifter to be competitive and running a glide, You can't click a shifter once at about 330'consistently.
Mike Taylor3601

08-02-2016, 06:42 PM	#1
Tim H VIP Member Join Date: Jan 2007 Posts: 1,040 Likes: 1,064 Liked 481 Times in 158 Posts	Automatic trans shifting I am wondering if any of the Stock racers have ever set their transmissions up to shift automatically.Just finished watching the video of Sterling Simmons C/SA (in the magazine portion of this site) and you can clearly hear the rpm change yet the shifter handle doesn't seem to move. Would the computer in the car be controlling the shifts with the shifter left in "D" or ?

08-02-2016, 06:56 PM	#2
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,097 Likes: 1,542 Liked 1,775 Times in 404 Posts	Re: Automatic trans shifting In Stock Eliminator, cars originally equipped with automatic transmissions that were shifted electronically by the computer as delivered from the factory can use "E-shift" systems, even on transmissions that were not original to the car, and did not originally have "E-shift". So a late model EFI car can use "E-shift", but an older carburetor equipped car cannot. Some older cars are equipped with "auto 1-2" valve bodies. Those cars leave the starting line with the shifter in 2nd, but the car leaves in 1st, then shifts to 2nd at a pre set RPM. The "auto 1-2" feature is controlled by the governor and the vacuum modulator in most cases. __________________ Alan Roehrich 212A G/S

08-03-2016, 10:36 AM	#3
Mickey Whaley VIP Member Join Date: Dec 2006 Posts: 1,220 Likes: 0 Liked 1 Time in 1 Post	Re: Automatic trans shifting I think paul forte at Turbo Action lobbied to make it legal for the older cars but got shot down I think if they can have we should too C/sa

08-03-2016, 11:19 AM	#4
FireSale VIP Member Join Date: Feb 2014 Location: Lakewood Washington Posts: 1,407 Likes: 29 Liked 237 Times in 126 Posts	Re: Automatic trans shifting My Opinion: Stock trans with OEM electric shift is OK unmodified. Otherwise, all transmission shift upgrades should be driver activated. It's called racing, not programming for Gods sake. Dale __________________ Dale Shearon 68 Mustang 6394

08-03-2016, 12:30 PM	#5
Coleydog Senior Member Join Date: Jul 2014 Posts: 569 Likes: 36 Liked 53 Times in 38 Posts	Re: Automatic trans shifting What about a stock 727 ? No plates or vb just put it in drive and go.

08-03-2016, 09:47 PM	#7
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,615 Likes: 1,901 Liked 10,657 Times in 2,212 Posts	Re: Automatic trans shifting I wonder if Helms, Hughes, Waldo and the rest had auto shift. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

08-03-2016, 09:54 PM	#8
novassdude Senior Member Join Date: Mar 2002 Location: usa Posts: 752 Likes: 204 Liked 136 Times in 49 Posts	Re: Automatic trans shifting I have a turbo 400 that has the modulator and weights set up so that it will shift at 5800 just putting it in drive and go. We have the electric kick-down on a switch if you turn the switch on it shifts at 6500 both shifts. Takes some testing to get them right but works great once you have it.

08-04-2016, 09:41 AM	#10
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,362 Likes: 337 Liked 279 Times in 96 Posts	Re: Automatic trans shifting I know Paul Crowe set some up to shift their self,just leave in drive and go. I have always thought it was funny all these guys talking about they had to have rpm activated air shifter to be competitive and running a glide, You can't click a shifter once at about 330'consistently. Mike Taylor3601