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Operating a RMVB on the street #1079680
09/21/11 08:48 AM
09/21/11 08:48 AM
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Melbourne.....Oz-land
Moparmal Offline OP
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My new Trans will have an RMVB (Thanks CRT)

I've never run a RMVB before, and I'd like a heads up on operating it in traffic situations.

Q1 - If I'm waiting at the lights and go to drive off normally - will it hurt the trans if I leave it in D(3rd gear?)

Q2 - If thats not advisable.....- is it OK to take off in 2nd gear?

Car weighs 3650 with me in it and runs a 392 stroker with a 3.91 gear set.


67 RO23 clone with 6.1 SRT Hemi and dual quads. Soon to have Drag Pak induction and Throttle body.
Re: Operating a RMVB on the street [Re: Moparmal] #1079681
09/21/11 08:52 AM
09/21/11 08:52 AM
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in a cattle trailer down by th...
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The answer to both questions is why would you. Having said that though it won't hurt the trans but it will build excessive heat and that could hurt the trans and shorten the life of the fluid.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Operating a RMVB on the street [Re: Moparmal] #1079682
09/21/11 08:58 AM
09/21/11 08:58 AM
Joined: Jul 2008
Posts: 30,252
Florida STAYcation
dIc dOc Deity ! Offline
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Q1 ...I have done that all-the-time ... but ONLY uNder very lite throttle.

Q2 ... Q1 is fine ...so #2 is cool too !

Re: Operating a RMVB on the street [Re: Moparmal] #1079683
09/21/11 10:08 AM
09/21/11 10:08 AM
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Dandridge TN
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Based on your questions, why did you go with a RMVB in the first place? Drive it like you would a manual three speed trans, 1st, 2nd. 3rd.

Re: Operating a RMVB on the street [Re: Dabee] #1079684
09/21/11 12:03 PM
09/21/11 12:03 PM
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Posts: 20,644
So Near, Yet So Far
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A RVMB is pretty much like a Stick without a clutch pedal. No big deal to drive around, but your downshift speeds should be lowered from what you'd do with a stick, since an AT doesn't match RPMs like a throttle-blip does with a stick.

Re: Operating a RMVB on the street [Re: Moparmal] #1079685
09/21/11 12:19 PM
09/21/11 12:19 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Quote:

My new Trans will have an RMVB (Thanks CRT)

I've never run a RMVB before, and I'd like a heads up on operating it in traffic situations.

Q1 - If I'm waiting at the lights and go to drive off normally - will it hurt the trans if I leave it in D(3rd gear?)

Q2 - If thats not advisable.....- is it OK to take off in 2nd gear?

Car weighs 3650 with me in it and runs a 392 stroker with a 3.91 gear set.


Don't do it, start off in 1st every time That way you won't do it(forget to start in 1st gear) at the track either


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Operating a RMVB on the street [Re: Moparmal] #1079686
09/21/11 12:39 PM
09/21/11 12:39 PM
Joined: Feb 2007
Posts: 5,080
organ
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maximum entropy Offline
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i have a crt rmvb lba (lol) in my heap, and i start in whatever gear i damn well please! usually 2nd in town, sometimes third. no problems with trans temp. pretty loose convertor (4400 flash). do what you want when you want. that is a great valve body, btw. i love mine.


for what is the good life if not doing things thoughtfully?
Re: Operating a RMVB on the street [Re: Dabee] #1079687
09/21/11 12:43 PM
09/21/11 12:43 PM
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Posts: 15,439
Val-haul-ass... eventually
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Quote:

... Drive it like you would a manual three speed trans, 1st, 2nd. 3rd.



Yep, and I always put it in neutral when sitting at traffic light.

Re: Operating a RMVB on the street [Re: BradH] #1079688
09/21/11 02:32 PM
09/21/11 02:32 PM
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Balt. Md
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You do need to know if has low band apply. If it doesn't then you dont want to go back in first until you are at a complete stop. Ron

Re: Operating a RMVB on the street [Re: 383man] #1079689
09/21/11 04:35 PM
09/21/11 04:35 PM
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Between a rock & a hard place
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Quote:

You do need to know if has low band apply. If it doesn't then you dont want to go back in first until you are at a complete stop. Ron




And low band apply is when the trans does NOT free-wheel in low gear, right??

Re: Operating a RMVB on the street [Re: cudadoug] #1079690
09/21/11 04:42 PM
09/21/11 04:42 PM
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organ
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i downshift mine into first no problem. going real slow. maybe crt could chime in on this?


for what is the good life if not doing things thoughtfully?
Re: Operating a RMVB on the street [Re: maximum entropy] #1079691
09/21/11 06:35 PM
09/21/11 06:35 PM
Joined: Mar 2009
Posts: 2,457
Sydney,Australia
tex013 Offline
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Mal,
you wanted the best shift,you got a manual VB.drive it like a manual.
harden up princess


Tex

PS : it won't make you faster just more consistant


New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
Re: Operating a RMVB on the street [Re: cudadoug] #1079692
09/21/11 06:57 PM
09/21/11 06:57 PM
Joined: Jan 2003
Posts: 27,421
Balt. Md
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383man Offline
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Quote:

Quote:

You do need to know if has low band apply. If it doesn't then you dont want to go back in first until you are at a complete stop. Ron




And low band apply is when the trans does NOT free-wheel in low gear, right??





Yes it will have eng braking in low gear. Without the low band apply it will freewheel in low and you dont want to go back into first at say 10 mph and then hammer it while it is freewheeling as that can damage the overrunning clutch. You want to come to a stop before you shift back into first so you dont have to worry about doing any damage. Ron

Re: Operating a RMVB on the street [Re: maximum entropy] #1079693
09/21/11 07:40 PM
09/21/11 07:40 PM
Joined: Feb 2007
Posts: 5,080
organ
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Quote:

i downshift mine into first no problem. going real slow. maybe crt could chime in on this?



duh, i reread your post. mine is lba.


for what is the good life if not doing things thoughtfully?
Re: Operating a RMVB on the street [Re: maximum entropy] #1079694
09/22/11 12:28 AM
09/22/11 12:28 AM
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Posts: 6,130
Melbourne , Australia
LA360 Offline
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I found that it would be best dropping the trans into first gear when the car was at a complete stop. I would always take off in first and quickly shift through to top gear once the car was moving if just cruising. Most of the time when the car was out, I was test driving as the owner didn't have a license. The trans had a Griner reverse pattern manual valve body, in a VG Coupe with a 360 backed by a 4800-5000 convertor. IHTH's


Alan Jones
Re: Operating a RMVB on the street [Re: Guitar Jones] #1079695
09/22/11 05:55 AM
09/22/11 05:55 AM
Joined: Jan 2003
Posts: 3,943
Melbourne.....Oz-land
Moparmal Offline OP
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Quote:

The answer to both questions is why would you.




Because I sometimes transport young children ad nervous passengers in the car and would like to make the trip as soon as smooth as possible for them in traffic.

Quote:

Based on your questions, why did you go with a RMVB in the first place?




Because it came with the Pro Race trans from CRT - John recommends them for a better line pressure - and I destroyed my 904 because the 450 pft the engine makes was too much for the Stage 2 fwd pattern.

And the car gets raced...

And the car sees 5000 road miles a year.

Quote:

A RVMB is pretty much like a Stick without a clutch pedal. No big deal to drive around, but your downshift speeds should be lowered from what you'd do with a stick, since an AT doesn't match RPMs like a throttle-blip does with a stick.




Good advice - thanks.

Quote:

You do need to know if has low band apply. If it doesn't then you dont want to go back in first until you are at a complete stop. Ron




It does - thanks for the concern Ron.

Quote:

harden up princess




Thanks Tex! See answer one, cutie pie....

Quote:

I would always take off in first and quickly shift through to top gear




No worries Al...thats the other option I guess.


Thanks for all the responses - the car performs a lot of different roles for us so all driving styles have to be accomodated.


Re: Operating a RMVB on the street [Re: Moparmal] #1079696
09/22/11 06:43 PM
09/22/11 06:43 PM
Joined: Mar 2009
Posts: 2,457
Sydney,Australia
tex013 Offline
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hey Mal,
with my griner the higher the RPM the easier the shift i try not to shift under 25/2800.otherwise sometimes it feels like the something is trying to escape from under the car

Tex


New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
Re: Operating a RMVB on the street [Re: tex013] #1079697
09/22/11 07:15 PM
09/22/11 07:15 PM
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
Leon441 Offline
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Lynchburg, VA
All this eugh eoig uhg about low band apply.

Stock transmissions are low band apply. You shift them into 1 if you want to be in first rolling or stopped. The same thing happens you go into low or what I call 1st. If you are used to a non low band apply that will roll free you need to change your driving habits. Just don't put it in a gear that it can't handle at the speed you are going.

And if you simply don't understand how to drive buy and engine that can handle the occassional 70 MPH shift into 1st. LOL

Leon


Career best 8.02 @ 169 at 3050# and 10" tires small block power.
Re: Operating a RMVB on the street [Re: Leon441] #1079698
09/23/11 10:38 AM
09/23/11 10:38 AM
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Posts: 15,439
Val-haul-ass... eventually
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Quote:

All this eugh eoig uhg about low band apply.



Uhhhh... what's the English translation for "eugh eoig uhg"?

Re: Operating a RMVB on the street [Re: Leon441] #1079699
09/23/11 10:43 AM
09/23/11 10:43 AM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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I run a Turbo Action FMVB w/o low-band apply on the street.
1. I always leave from a dead stop in 1st.
2. I always put it in neutral when I come to full stop like a red traffic light (no sense in putting any more heat in the fluid than necessary).
3. I always wait until I've come to a complete stop to put it into 1st when shifting down from a higher gear.

Like somebody else said above, either change your driving technique to accomodate the different valve body, or don't put a manual valve body in it.

Re: Operating a RMVB on the street [Re: BradH] #1079700
09/23/11 11:04 AM
09/23/11 11:04 AM
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Posts: 20,600
in a cattle trailer down by th...
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So do you guys really think there is a difference from kicking down a stock valve body into first gear from speed or putting a non band apply MVB into first at the same speed?

Well there isn't.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Operating a RMVB on the street [Re: Moparmal] #1079701
09/23/11 11:13 AM
09/23/11 11:13 AM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
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You should no issues. I love my Turbo action RMVB and 3800 stall.

Q1 - If I'm waiting at the lights and go to drive off normally - will it hurt the trans if I leave it in D(3rd gear?) No you must go back to 1st (where D is) then [Edited by Moparts - Family Friendly Site - Keep it clean] at desired rpm
Q2 - If thats not advisable.....- is it OK to take off in 2nd gear? No start in 1st (D)
you start in 2nd when you are in the burn out box, then hit 3rd as the tires start to smoke...


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Coming soon!!!!
Re: Operating a RMVB on the street [Re: Guitar Jones] #1079702
09/23/11 05:58 PM
09/23/11 05:58 PM
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Posts: 27,421
Balt. Md
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Quote:

So do you guys really think there is a difference from kicking down a stock valve body into first gear from speed or putting a non band apply MVB into first at the same speed?

Well there isn't.





You know I never looked at it that way. I mean since I use a TA non apply low band in first I really thought about slamming it back in first and worrying about the overrunning clutch locking back up from freewheeling and figure I dont want to worry about doing any damage to it. But you are correct as in a stock trans the low band is not on when in first from the drive posistion and we all have slammed it to the floor at 20 mph to have it drop back to first and go ! Hmmmmmmm........now you have me thinking about that. Ron

Re: Operating a RMVB on the street [Re: 383man] #1079703
09/24/11 03:32 AM
09/24/11 03:32 AM
Joined: Jan 2003
Posts: 3,943
Melbourne.....Oz-land
Moparmal Offline OP
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Thanks Tex and Mr Yuck.

Quote:

And if you simply don't understand how to drive buy and engine that can handle the occassional 70 MPH shift into 1st. LOL




Well if I'd posted about "low band apply"..I'd agree with you...but I was asking about gear choice in traffic.

...

Quote:

Like somebody else said above, either change your driving technique to accomodate the different valve body, or don't put a manual valve body in it.





Hey! .Maybe thats why I asked?

Because I want to know what I can and can't do...

Never used one before...Go figure...

Last edited by Moparmal; 09/24/11 09:31 AM.
Re: Operating a RMVB on the street [Re: Guitar Jones] #1079704
09/24/11 05:00 PM
09/24/11 05:00 PM
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Posts: 25,618
Rio Linda, CA
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Quote:

So do you guys really think there is a difference from kicking down a stock valve body into first gear from speed or putting a non band apply MVB into first at the same speed?

Well there isn't.




I believe the discussion was about shifting to low while coming to a stop. Kicking down is done at WOT and stopping is at idle.


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Re: Operating a RMVB on the street [Re: John_Kunkel] #1079705
09/24/11 05:23 PM
09/24/11 05:23 PM
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Posts: 20,600
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Quote:

Quote:

So do you guys really think there is a difference from kicking down a stock valve body into first gear from speed or putting a non band apply MVB into first at the same speed?

Well there isn't.




I believe the discussion was about shifting to low while coming to a stop. Kicking down is done at WOT and stopping is at idle.




Besides the point first of all. If you take off in 2nd or 3rd and you're only going say 20 MPH you can still shift into 1st under throttle. If you can do that why can't you shift to first while rolling at say 5-10 mph before stopping? A stock valve body will go into first before a complete stop, you just don't feel it because it's free wheeling. Granted it's probably under 5 MPH but it's the same thing. They just don't want you slamming a RMVB down into first at 30 and then hammering it or using 1st as a kind of neutral to coast down.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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