200r4, 700r4 ?
 

https://www.youtube.com/watch?v=-MXAA91_ljI

So this is a in car shot of the restored "YOO-HOO-TOO" Junior Stock car from the 60's, as you watch the video they have I guess original style 4 speed Hydromatic transmission. My question is why don't we use the same logic in today Stock Class, run a 200R4 or 700R4 tranny in a 3rd Gen Camaro, or any GM basically from the 80's , 90's ect? Might be a simple question with a simple answer, but I am not a Automatic expert, just curious.

Will Lamprecht
1965 Impala I/SA

Re: 200r4, 700r4 ?
 

[QUOTE=impstocker;561853
So this is a in car shot of the restored "YOO-HOO-TOO" Junior Stock car from the 60's, as you watch the video they have I guess original style 4 speed Hydromatic transmission. My question is why don't we use the same logic in today Stock Class, run a 200R4 or 700R4 tranny in a 3rd Gen Camaro, or any GM basically from the 80's , 90's ect? Might be a simple question with a simple answer, but I am not a Automatic expert, just curious.

Will Lamprecht
1965 Impala I/SA[/QUOTE]

I run a 4L60E in my car with a Locking Converter
Able to shift into OD or use the Locking Converter.

D

Re: 200r4, 700r4 ?
 

Does this trans have a clutch to launch ? The early ClutchHydros used that , lots of early Chrysler race cars had ClutchFlites . Once better race converters were developed , those type of transmissions disappeared , probably due to bad durability . Now you can buy a Bruno-Drive so you can hookup a torque Converter to a Lenco . Then you get the best of both worlds with a transbrake and a strong trans .

The new transmissions like a 200-4R or a 700-R4 don't have good ratio spreads to take advantage of the 4 speeds .

Re: 200r4, 700r4 ?
 

"The new transmissions like a 200-4R or a 700-R4 don't have good ratio spreads to take advantage of the 4 speeds "

I guess that was answer I was looking for. As far as the question about Clutch-Turbo, I don't think they ran these, I believe more of a stock converter with lots of gear in back. I worked on a 57 Caddy once, that car I believe had the 4 Speed with a bolt together converter, early technology I guess.
Will Lamprecht

Re: 200r4, 700r4 ?
 

I think a original HydraMatic had a fluid coupling which is different from a torque converter . A fluid coupling does not multiply torque stays at one to one .