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Shfting manualy, good or bad
https://slantsix.org/forum/viewtopic.php?f=20&t=39234		 Page 1 of 2
Author:  /6 Matt [ Tue Mar 02, 2010 5:02 pm ]
Post subject:  Shfting manualy, good or bad
Hey guys, I got a stock 904 Torque Flite sitting behind my 225. I was wondering, is it ok to shift the car as though it is a manual? Most transmissions can't handle it with out a manual valve body but it is a Torque Flite so I figured it could handle it with an automatic valve body.

So, good? bad? what's the verdict?
Author:  Ron Parker [ Tue Mar 02, 2010 5:15 pm ]
Post subject: 
You can shift it if you want but why. On the street the trans will do better for gas econony in drive and let it shift auto. At the strip you could pick up some time shifting your self with pratcice. Thanks Ron Parker










It Aint Over Until I Win
Author:  SlantSixDan [ Tue Mar 02, 2010 5:15 pm ]
Post subject: 
Is your kickdown linkage installed and properly working?
Author:  Reed [ Tue Mar 02, 2010 5:19 pm ]
Post subject: 
Cops are trained in cops pursuit driving school to drive like you suggest- start with the tranny in "1", manually shift to "2", then manually shift to "D". THis helps with aggressive acceleration in a non-race modified transmission (I.E. one already converted to a full manual valve body), but that's it. I can't see any advantage to driving this way in a daily driver.
Author:  /6 Matt [ Tue Mar 02, 2010 5:24 pm ]
Post subject: 
Kickdown linkage is fine, and I do fully understand the fuel economy thing. I just have more fun shifting myself 8) . Someday I'd like to get an OD 833 but that will be awhile. I just needed to know if the internals could handle it. Thanks guys :D
Author:  Joshie225 [ Tue Mar 02, 2010 5:25 pm ]
Post subject: 
SlantSixDan wrote:
Is your kickdown linkage installed and properly working?


I think Dan is driving at the fact that little is to be gained by shifting manually if the transmission throttle pressure linkage is in order. I've found the stock slant six and stock A904 to be very well matched.
Author:  SlantSixDan [ Tue Mar 02, 2010 5:27 pm ]
Post subject: 
Reed wrote:
Cops are trained in cops pursuit driving school to drive like you suggest- start with the tranny in "1",



Tough to do when many cop cars have "1" permanently locked out. ;-)
Author:  SlantSixDan [ Tue Mar 02, 2010 5:28 pm ]
Post subject: 
Joshua Skinner wrote:
I think Dan is driving at the fact that little is to be gained by shifting manually if the transmission throttle pressure linkage is in order.


That's true, but what I was actually getting at was that if the kickdown linkage is missing or too short, even manually shifting the trans won't stop the resultant damage.
Author:  Doc [ Tue Mar 02, 2010 5:42 pm ]
Post subject: 
With everything in correct adjustment, most 68 and newer SL6 / 904 trans set-ups are pretty "smart" as far as being in the "right" gear at any given combo of speed and throttle. (the "part throttle kickdown" feature at work)

I will find myself manually shifting a 904 at times, usually for a downhill "downshift" to control speed... with-out heating the brakes or when I am stuck in slow, stop/go traffic, where I do not want a light load up-shift. (a "klunk" shift)

A trans wears-out a little bit, every time it shifts, automatically or manually. If you add a few more shifts... by your manual shift preferences or habits, then technically, it will wear-out a little sooner but with hundreds of thousands of lifetime "shifts" at your disposal, I would not worry about it.
DD
Author:  Reed [ Tue Mar 02, 2010 6:51 pm ]
Post subject: 
SlantSixDan wrote:
Reed wrote:
Cops are trained in cops pursuit driving school to drive like you suggest- start with the tranny in "1",



Tough to do when many cop cars have "1" permanently locked out. ;-)


I'm just going by what I have read cops testify to on cross examination. :shrug: According to the Kitsap County cops, the Crown Vics the Kitsap County Sheriff's use top out at 120 MPH through some kind of governor on the motor. I guess that's why we use small airplanes to catch speeders in WA.
Author:  /6 Matt [ Tue Mar 02, 2010 6:58 pm ]
Post subject: 
Thaks for the great inpute guys. In regards to what Dan was asking, the kickdown linkage works fine and I've seen the result of trying to not use a kickdown linkage hehe :wink: . Once again, shifting manually would mostly be for fun, not because I feel it shifts at the wrong time or anything. I just prefer a manual, and unfortunatley I have yet the means to have a manual.
Author:  Rob Simmons [ Wed Mar 03, 2010 12:25 am ]
Post subject: 
That's what I did most of the time with my '67 Dart GT with a 273/904 in high school. I liked shifting myself too. :wink: I drove that car very, very hard with substandard maintenance procedures for three years and it was still shifting just fine when I parked it and left for the Army.

**Note - I do not recommend driving your car very, very hard with substandard maintenance procedures for three years! :shock: I was young and dumb... Now I'm old and dumb. :D
Author:  Ron Parker [ Wed Mar 03, 2010 3:25 pm ]
Post subject: 
But Rob you are a great American that supercedes anything in the past.
God Speed Rob :D











It Aint Over Until I Win
Author:  Rob Simmons [ Wed Mar 03, 2010 11:44 pm ]
Post subject: 
So then can I still shift manually? 'Cuz I still like doing that! :D I'll service the tranny better than back then, I promise! :lol: )

BTW Dartman: Sweet lookin' Dart! I don't have my '67 GT anymore, but I do have a pretty nice '72 Swinger (That I do plan to manually shift fairly often when I get back :wink: )
Author:  /6 Matt [ Thu Mar 04, 2010 7:18 pm ]
Post subject: 
Rob Simmons wrote:
So then can I still shift manually? 'Cuz I still like doing that! :D I'll service the tranny better than back then, I promise! :lol: )

BTW Dartman: Sweet lookin' Dart! I don't have my '67 GT anymore, but I do have a pretty nice '72 Swinger (That I do plan to manually shift fairly often when I get back :wink: )


Thanks, I got big plans. But I got to get the $$$!

I've put in almost 15 different job applications and not even one phone call.
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