200r4, 700r4 ?

impstocker · 04-27-2018, 12:11 PM

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

Dan Fahey · 04-27-2018, 12:26 PM

[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

ss3011 · 04-27-2018, 12:29 PM

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 .

impstocker · 04-27-2018, 01:42 PM

"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

ss3011 · 04-27-2018, 02:31 PM

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 .

04-27-2018, 12:11 PM	#1
impstocker Member Join Date: Dec 2008 Location: Wingdale, NY Posts: 302 Likes: 27 Liked 54 Times in 16 Posts	200r4, 700r4 ? 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

04-27-2018, 12:26 PM	#2
Dan Fahey VIP Member Join Date: Oct 2008 Posts: 2,114 Likes: 1,078 Liked 180 Times in 110 Posts	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

04-27-2018, 12:29 PM	#3
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 885 Likes: 63 Liked 221 Times in 102 Posts	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 .

04-27-2018, 01:42 PM	#4
impstocker Member Join Date: Dec 2008 Location: Wingdale, NY Posts: 302 Likes: 27 Liked 54 Times in 16 Posts	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

04-27-2018, 02:31 PM	#5
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 885 Likes: 63 Liked 221 Times in 102 Posts	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 .