Operating a RMVB on the street

Posted By: Moparmal

Operating a RMVB on the street - 09/21/11 12:48 PM

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.

Posted By: Guitar Jones

Re: Operating a RMVB on the street - 09/21/11 12:52 PM

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.

Posted By: dOrk !

Re: Operating a RMVB on the street - 09/21/11 12:58 PM

Q1 ...I have done that all-the-time ... but ONLY uNder very lite throttle.

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

Posted By: Dabee

Re: Operating a RMVB on the street - 09/21/11 02:08 PM

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.

Posted By: topside

Re: Operating a RMVB on the street - 09/21/11 04:03 PM

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.

Posted By: Cab_Burge

Re: Operating a RMVB on the street - 09/21/11 04:19 PM

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

Posted By: maximum entropy

Re: Operating a RMVB on the street - 09/21/11 04:39 PM

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.

Posted By: BradH

Re: Operating a RMVB on the street - 09/21/11 04:43 PM

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.

Posted By: 383man

Re: Operating a RMVB on the street - 09/21/11 06:32 PM

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

Posted By: cudadoug

Re: Operating a RMVB on the street - 09/21/11 08:35 PM

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??

Posted By: maximum entropy

Re: Operating a RMVB on the street - 09/21/11 08:42 PM

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

Posted By: tex013

Re: Operating a RMVB on the street - 09/21/11 10:35 PM

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

Posted By: 383man

Re: Operating a RMVB on the street - 09/21/11 10:57 PM

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

Posted By: maximum entropy

Re: Operating a RMVB on the street - 09/21/11 11:40 PM

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.

Posted By: LA360

Re: Operating a RMVB on the street - 09/22/11 04:28 AM

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

Posted By: Moparmal

Re: Operating a RMVB on the street - 09/22/11 09:55 AM

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.

Posted By: tex013

Re: Operating a RMVB on the street - 09/22/11 10:43 PM

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

Posted By: Leon441

Re: Operating a RMVB on the street - 09/22/11 11:15 PM

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

Posted By: BradH

Re: Operating a RMVB on the street - 09/23/11 02:38 PM

Quote:

All this eugh eoig uhg about low band apply.

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

Posted By: BradH

Re: Operating a RMVB on the street - 09/23/11 02:43 PM

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.

Posted By: Guitar Jones

Re: Operating a RMVB on the street - 09/23/11 03:04 PM

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.

Posted By: Mr.Yuck

Re: Operating a RMVB on the street - 09/23/11 03:13 PM

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...

Posted By: 383man

Re: Operating a RMVB on the street - 09/23/11 09:58 PM

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

Posted By: Moparmal

Re: Operating a RMVB on the street - 09/24/11 07:32 AM

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...

Posted By: John_Kunkel

Re: Operating a RMVB on the street - 09/24/11 09:00 PM

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.

Posted By: Guitar Jones

Re: Operating a RMVB on the street - 09/24/11 09:23 PM

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.