th400-forward vs reverse valve body
Thread Starter
Teching In
Joined: Jan 2005
Posts: 14
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From: florida
th400-forward vs reverse valve body Which one is better suited for a street/drag car? Is one better for high power than the other? I know the reverse has no engine braking, so what happens if i let of the gas just coast like in neutral, what about downshifting ive been told you shouldnt unless stopped?
Thanks for the help
Chuck
Thanks for the help
Chuck
i want to know also because were i live there is a crapload of light and of course the turn green when you slow down to like 10 - 15 mph... and also want to know about the coasting thing, becuase my wife always goes a little to fast then lets off then hits the gas then lets off all the time, almost makes me sea sick lol... thanks
If you go over say 35-40, coast and downshift into first knowing you're going to end up in first when you stop then you run the risk of over running the direct drum (which would normally be stopped by the front band) and this will sling oil off the sprag or roller clutch and it could fail due to lack of oil.
You can downshift, coast forever in third, etc. But don't make a habit of running fast and downshifting into first or second and coasting to a stop.
You can downshift, coast forever in third, etc. But don't make a habit of running fast and downshifting into first or second and coasting to a stop.
Thread Starter
Teching In
Joined: Jan 2005
Posts: 14
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From: florida
Originally Posted by john kilgore
there are reverse vb's with compression braking.
Thanks
Since my car is mainly a racecar these days, I went with a rev vb cause I don't want any chance of missing 3rd on the 2-3 shift and going into N! On the jug, that would be a very bad thing to do. I've seen even the best of shifters have plates fail or allow a missed shift - I'll live with the downsides on the street for the security on the track.
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The Bull
Joined: Jun 2002
Posts: 3,578
Likes: 2
From: Grand Rapids, MI
Rossler sells a TH400 that has the 2nd gear drum banded to let it hook up like this. You can downshift just fine with it like this. In fact, you can be going 55 in 3rd, downshift and rocket away. It would sort of look something like this if you did downshift like that.
http://www.stenodracing.com/videos/Derty_Highway2.wmv
That's all motor versus a complete stock car with a Incon TT kit (around 600+ HP/TQ and 3800 pounds).
A gated shifter will also make a reverse manual very nice. I like mine a lot.
http://www.stenodracing.com/videos/Derty_Highway2.wmv
That's all motor versus a complete stock car with a Incon TT kit (around 600+ HP/TQ and 3800 pounds).
A gated shifter will also make a reverse manual very nice. I like mine a lot.
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TECH Regular
Joined: Feb 2004
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From: burbank ca
braking
Originally Posted by 97 white
Who sells vb with compression braking and would this be better for a street/strip car? Could i downshift and coast with this set up? Can i still have a transbrake?
Thanks
Thanks
Originally Posted by 97 white
Is there any reason one would not want to have compression braking in 1st and 2nd?
Thats what I think anyway.
