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#1
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Reverse manual valve body
Guys, what's the advantage of a reverse pattern valve body? I've been using a forward pattern manual valve body trans for so many years. I will be pulling the trans this week for a freshen up. I'm debating adding a trans brake for later use. I'm not positive on that yet. Just looking for input.
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#2
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Hi Scott, We run a Hughes Reverse Valve body. HR2211R. It has no trans brake. It also has no engine braking. The nice thing about is when driving on the street, you leave it in drive or 3rd and shift to first when you come to a stop sign or stop light. Never issues with rear tire chirping on slowing down. Also nice thing about it is it shift from front to back so when on the track you just keep hitting it downward, not forward. It doesn't use any check balls in the tranny unless you use the trans brake version. It also shift a bit soft, depends on converter, but 1st to 2nd and 3rd are not window shattering. Reverse a bit harsh but still shifts nice in reverse. You can still do the dual feed on a TH400 with this valve body. I just built a Reid Th400 with this valve body. Not tested yet. I built a Gm Case TH400 last year and was really nice. If your after a 1000 hp build on a TH400 let me know. I'll send what I used. Folks on the board help me choose parts and as well a shout out to Cliff's Th400 book.
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68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick. Best so far 10.12@133 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. |
#3
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Over all, I don't believe there is any mechanical or performance benefit.. |
#4
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Thanks for the info, my current shifter ( Pro Stick) has pretty solid lock outs so the 3rd to neutral or even worse, 3rd to reverse is nearly impossible. I was just concerned about the 3rd to neutral when using a reverse valve body. What if I don't shift fast enough does it hit 1st? Thinking about a trans brake but not sure of the ability to get it hooked on the launch with a brake.
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#5
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Scott Jake's Transmissions makes a forward manual valve body/transbrake. I figured I have been shifting "forward" for so many years my brain could not do a reverse pattern.
I think they are the only ones making a non reverse pattern trans brake.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
The Following User Says Thank You to Skip Fix For This Useful Post: | ||
#6
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Never heard of Jake's Transmissions. You've had good results from theirs? Where are they located?
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#7
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Scott trans is sitting in the shop for a swap later this year.
https://shop.jakesperformance.com/home They dyno test trans before shipping. They were back ordered for months on the solenoid for that valve body so it took 6 months to get it.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
#8
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I do my burnouts in 2nd with the new valve body. Jakes has a very good reputation. |
#9
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What is a clean neutral?
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#10
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I think that means there is no gear braking when down shifting. So with a reverse pattern to go from 3rd to neutral there is no chance of going to 2nd or 1st. At high speeds.
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#11
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Clean neutral VB option, this will allow you to put it on Neutral at the end of the run without the danger of a drum explosion from excessive rpm. It spins 2.5X your engine rpm.
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The Following User Says Thank You to 73 TRANSAM For This Useful Post: | ||
#12
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There is one other company making a forward with a brake. I just can’t remember who it is off the top of my head.
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#13
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All those years of starting my burnouts in 1st and clicking 2nd, then downshifting after the run and not hurting something, very lucky. No one wants a cast iron drum blowing though your floor pan. |
#14
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Thanks for the clarification on that. 👍
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#15
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From what I understand with most of these after market valve bodies, because of no engine braking they specifically say not to shift out of 3rd gear while vehicle is moving.
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68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick. Best so far 10.12@133 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. |
#16
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If you want your reverse manual valve body to seem normal and shifting forward, mount the shifter backwards like a lot of folks do, especially those "street racers" on the ol Teee-Veee. 3-2-1-N-R-P as you pull it back. And I will freely admit, it would make a front exit shift cable easier to route if it is now pointing toward the back of the car.
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Clutch Guys Matter _______________________________________ 53 Studebaker, 400P/th400/9" 64 F-85 72 4-4-2 Mondello's VO Twister II 84 Hurst/Olds #2449 87 Cutlass Salon 54 Olds 88 sedan |
#17
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#18
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I'm not either, but its "catching on". I have enough trouble otherwise that I dont need to retrain myself on how to shift it. I'd like to avoid the 3-2 "connecting rod removal" shift.
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Clutch Guys Matter _______________________________________ 53 Studebaker, 400P/th400/9" 64 F-85 72 4-4-2 Mondello's VO Twister II 84 Hurst/Olds #2449 87 Cutlass Salon 54 Olds 88 sedan |
The Following User Says Thank You to Mr Anonymous For This Useful Post: | ||
#19
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Lol..3-2 rod removal shift..
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#20
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Another option is a Kilduff shifter
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Johnny US Army Retired 1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1980 Formula 350 Pontiac back burner project 1972 LeMans 350 Pontiac |
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