|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: kielbasa]
#857972
11/21/10 02:12 PM
11/21/10 02:12 PM
|
Joined: Nov 2004
Posts: 226
lino lakes,MN
onebaddakota
enthusiast
|
enthusiast
Joined: Nov 2004
Posts: 226
lino lakes,MN
|
I've run both on the street and strip. I've lost races with the forward-bumping into neutral from the 2nd to 3rd shift is way too easy. I've also been told that the reverse is easier on the tranny if you do a lot of street miles.
Tom
10.56 at 125.6, with a 1.43 60 ft.
E85, Hyd. Roller 410 magnum,full exhaust, 3500 race weight.
|
|
|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: kielbasa]
#857975
11/22/10 11:25 AM
11/22/10 11:25 AM
|
Joined: Aug 2004
Posts: 1,413
Newark,Ohio
kissmyaspen
pro stock
|
pro stock
Joined: Aug 2004
Posts: 1,413
Newark,Ohio
|
Quote:
i REALLY wanted to keep my slapstick, but trans builder talked me out of fmvb (since i'll have considerably more horsepower than stock) because he told me rmvb allows higher line pressure (or something to that effect) than fmvb......i will install the Duncan shift-r-gate, so at least i can still keep my slapstick though, haven't tried it out yet though.
This is confusing, because no matter where 1st is on the shifter it still in the same spot in the transmission. and i dont see how horsepower would make a difference in shift forward or backwards. 
79 Dodge Aspen
12.265 at 109.75 MPH
67 Satellite NSS/E
11.83 @ 110
1968 Plymouth Road Runner 472 Hemi
3 time MOPAR NATIONALS CHAMP '03 FWD and '06 & '09 Street.
'07, '10, '12 Mopar Nats runner-up Street.
|
|
|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: kissmyaspen]
#857976
11/22/10 02:41 PM
11/22/10 02:41 PM
|
Joined: Jan 2003
Posts: 74,939
U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,939
U.S.S.A.
|
Quote:
Quote:
i REALLY wanted to keep my slapstick, but trans builder talked me out of fmvb (since i'll have considerably more horsepower than stock) because he told me rmvb allows higher line pressure (or something to that effect) than fmvb......i will install the Duncan shift-r-gate, so at least i can still keep my slapstick though, haven't tried it out yet though.
This is confusing, because no matter where 1st is on the shifter it still in the same spot in the transmission. and i dont see how horsepower would make a difference in shift forward or backwards.
Did you see this ?
Quote:
This is because the forward pattern uses the shift valves to command the shifts by short circuiting the governor passage. The reverse pattern shifts directly from the manual valve, eliminating the shift valves, giving a better quality gear shift. Shifting through the 1-2, 2-3 shift valves can limit the line pressure because they influence shift timing.
Allan G.
The more power an engine makes more line pressure is needed to hold the clutches from slipping.
|
|
|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: JohnRR]
#857977
11/22/10 06:43 PM
11/22/10 06:43 PM
|
Joined: Aug 2004
Posts: 1,413
Newark,Ohio
kissmyaspen
pro stock
|
pro stock
Joined: Aug 2004
Posts: 1,413
Newark,Ohio
|
The regulator valve is what controls the pressure.
79 Dodge Aspen
12.265 at 109.75 MPH
67 Satellite NSS/E
11.83 @ 110
1968 Plymouth Road Runner 472 Hemi
3 time MOPAR NATIONALS CHAMP '03 FWD and '06 & '09 Street.
'07, '10, '12 Mopar Nats runner-up Street.
|
|
|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: JohnRR]
#857978
11/22/10 06:44 PM
11/22/10 06:44 PM
|
Joined: Jan 2003
Posts: 7,131
Amarillo, Texas
BBR
master
|
master
Joined: Jan 2003
Posts: 7,131
Amarillo, Texas
|
Mine is reverse and I wish it was regular pattern sometimes...
like the last time I doinked it back into 2nd after a pass at the track because I had a habit of shifting to neutral after the traps. oopsie.
Drag Week 2011 - 77th place - DD
Drag Week 2012 - 2nd place SRBB N/A
Drag Week 2014 - Kapooya
RMRW 2018
RMRW 2020
|
|
|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: kissmyaspen]
#857979
11/22/10 09:40 PM
11/22/10 09:40 PM
|
Joined: Jan 2003
Posts: 74,939
U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,939
U.S.S.A.
|
Quote:
The regulator valve is what controls the pressure.
Quote:
This is because the forward pattern uses the shift valves to command the shifts by short circuiting the governor passage. The reverse pattern shifts directly from the manual valve, eliminating the shift valves, giving a better quality gear shift. Shifting through the 1-2, 2-3 shift valves can limit the line pressure because they influence shift timing.
Allan G.
|
|
|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: JohnRR]
#857980
11/22/10 10:34 PM
11/22/10 10:34 PM
|
Joined: Mar 2006
Posts: 2,675
Mt. Eden Ky.
Hemi Allstate
master
|
master
Joined: Mar 2006
Posts: 2,675
Mt. Eden Ky.
|
Hmmmm....... Ok so it is not recommended for higher torque and Hp levels. My engine should make north of 700 hp and more tq. I have a forward shift pattern. My car is fairly light weight (2500 lbs approx.) and will be a street strip version. What should I expect to be the down side of this shift pattern? Trans failure, or just not perform to the highest level? Would the lighter car make the lower pressure less important?  I thougth I was about finished buying stuff and could finish this car. Now my tranny and shifter are in question! 
|
|
|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: turbobitt]
#857982
11/22/10 11:08 PM
11/22/10 11:08 PM
|
Joined: Mar 2006
Posts: 2,675
Mt. Eden Ky.
Hemi Allstate
master
|
master
Joined: Mar 2006
Posts: 2,675
Mt. Eden Ky.
|
Quote:
Quote:
Hmmmm....... Ok so it is not recommended for higher torque and Hp levels.
My engine should make north of 700 hp and more tq. I have a forward shift pattern. My car is fairly light weight (2500 lbs approx.) and will be a street strip version.
What should I expect to be the down side of this shift pattern? Trans failure, or just not perform to the highest level?
Would the lighter car make the lower pressure less important?
I thougth I was about finished buying stuff and could finish this car. Now my tranny and shifter are in question!
I'm using a forward pattern manual VB with my 572 Hemi. I expect to see similar HP levels but in a heavy, 4000 pound car. So far its been good BUT I haven't leaned on it yet and never raced it as of yet.
For your application, you may get away with it since you are much lighter. If it will see mostly street duty, then chances are better.
Like everything else, you won't know unitl you try.
Allan G.
Allan, I am using a 572 Hemi as well. I may just have to try it. I know that I should do some other upgrades for safety.
Thanks,
Mark
|
|
|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: sixpackgut]
#857985
11/23/10 12:14 PM
11/23/10 12:14 PM
|
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
BradH
Taking time off to work on my car
|
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
|
Quote:
Quote:
Quote:
i REALLY wanted to keep my slapstick, but trans builder talked me out of fmvb (since i'll have considerably more horsepower than stock)...
How much HP will that be? Just curious since I use a Turbo Action FMVB w/ about 600 HP and have no problems running in the 10s.
over 700hp here with foward manual vb and a slap stick and never a problem...
I still use the SlapStik shifter in my Challenger, too.
FWIW, I called up Turbo Action to ask them about which of their FMVB to use, the one w/ LBA or the one w/o. For my performance level, etc., the tech rep said to go w/ the "Race" (no LBA) version, since it would be quicker than the "Pro Street" (LBA) model, even though mine is a street/strip application. 
|
|
|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: BradH]
#857986
11/23/10 01:36 PM
11/23/10 01:36 PM
|
Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
|
Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
|
Quote:
Quote:
Quote:
Quote:
i REALLY wanted to keep my slapstick, but trans builder talked me out of fmvb (since i'll have considerably more horsepower than stock)...
How much HP will that be? Just curious since I use a Turbo Action FMVB w/ about 600 HP and have no problems running in the 10s.
over 700hp here with foward manual vb and a slap stick and never a problem...
I still use the SlapStik shifter in my Challenger, too.
FWIW, I called up Turbo Action to ask them about which of their FMVB to use, the one w/ LBA or the one w/o. For my performance level, etc., the tech rep said to go w/ the "Race" (no LBA) version, since it would be quicker than the "Pro Street" (LBA) model, even though mine is a street/strip application.
thats why your so fast. i have the LBA version.
Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
|
|
|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: sixpackgut]
#2855989
12/06/20 12:50 PM
12/06/20 12:50 PM
|
Joined: Nov 2020
Posts: 348
Isle of Sheeps
Gtxxjon
enthusiast
|
enthusiast
Joined: Nov 2020
Posts: 348
Isle of Sheeps
|
Hi Moparts, One of the best threads I've read in years! Forwards up against reverse pattern... In my race car I used a reverse pattern (no steel drum) with a good quality shifter, worked GREAT as Tony (tiger) would say. But now I want to run the stock slapstick in my 71 GTX (street-stripper) so I'm gonna go 'full manual' forward pattern and a STEEL-DRUM!  What could go wrong lol... 
Last edited by Gtxxjon; 12/06/20 12:53 PM.
Carpe diem, quam minimum credula postero, thanx Horace!
There’s no point trying to fix stuff that ain’t broke,,, 'but if ain’t broke',,, you is not trying hard enough...
|
|
|
Re: Reverse manual Valve body vs Forward Shifting VB?
[Re: 451Mopar]
#2856571
12/07/20 02:21 PM
12/07/20 02:21 PM
|
Joined: Sep 2003
Posts: 19,307
north of coder
moparx
"Butt Crack Bob"
|
"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,307
north of coder
|
i have a duncan gate plate, but i haven't installed it yet. is that what you used on your charger ? i have an old rusted up slapstick mechanism i thought about tearing apart and possibly using parts from it, or using the parts to get an idea how the mechanism functions, then fabbing my own to turn a 69 B-body shifter into a slap stick. 
|
|
|
|
|
