Mopar transmissions - how strong?
#1140340
12/20/11 10:43 PM
12/20/11 10:43 PM
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Joined: Jan 2008
Posts: 669 Michigan, USA
ramman5600
OP
mopar
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mopar
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Michigan, USA
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I saw this posted on a craigslist ad and wondered what others thought. " REMEMBER, start your burnouts in 2nd gear and shift to 3rd. Never shift from 1st to 2nd during a burnout with a Mopar transmission, it will EXPLODE! " -C
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Re: Mopar transmissions - how strong?
[Re: ramman5600]
#1140344
12/21/11 11:05 AM
12/21/11 11:05 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Romeo MI
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Quote:
I saw this posted on a craigslist ad and wondered what others thought.
" REMEMBER, start your burnouts in 2nd gear and shift to 3rd. Never shift from 1st to 2nd during a burnout with a Mopar transmission, it will EXPLODE! "
-C
All depends on what valve body is in it... a manual valve body you start in second because it wouldnt apply the band(unless its a LBA valve body)... the thing is that if in first(low gear) and you blow the over running clutch(sprag) you will spin the drum 2.2 times faster than the engine RPM... a stock drum is powered metal and with the centrifugal force will come apart(explode) at like 14000 RPMs A stock valve body has low gear apply(thats when you let off the gas in low gear the trans and drive line will pull the engine down)if it was a non LBA it would just free wheel if in low the
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Re: Mopar transmissions - how strong?
[Re: MR_P_BODY]
#1140345
12/21/11 01:34 PM
12/21/11 01:34 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
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I Live Here
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I'm starting to miss my TH400! First you have to warm up the car in neutral and now this "no burnouts in first geart" thing. I assume it's the same issue starting a burnout in Drive? Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: Mopar transmissions - how strong?
[Re: buildanother]
#1140347
12/21/11 03:53 PM
12/21/11 03:53 PM
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Joined: Jan 2003
Posts: 75,274 A gulag near you.
JohnRR
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Quote:
I also have never had the sprag failure issue, been racing on and off since late seventies. Used to always start in 1st, then went into at least 2nd during burnout. Used to always do a couple dry hops before starting line too. I stopped that though. I think the problem is lifting off of throttle while tires are wildly spinning still. I seen a guy with a bone stock-polyglass tire 440 car roll a sprag as he kept frying the tires in the water, attempting to get them to bite. The big problem apparently is running the car down strip after you already damaged the sprag.
Low band Apply VB or not enough steam ???
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Re: Mopar transmissions - how strong?
[Re: buildanother]
#1140349
12/22/11 01:31 AM
12/22/11 01:31 AM
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Joined: Jul 2006
Posts: 4,319 Puyallup, WA
StealthWedge67
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I always get confused on this one. Whenever it comes up, people start talking Manual valvebodies, but does this apply to a stock valvebody 727? And sorry to hi-jack, but what about a Trans-Go stage 2 VB?
Last edited by GEnsrud; 12/22/11 01:33 AM.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: Mopar transmissions - how strong?
[Re: StealthWedge67]
#1140350
12/22/11 01:56 AM
12/22/11 01:56 AM
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Joined: Jan 2005
Posts: 12,478 Kalispell Mt.
HotRodDave
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I Live Here
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The t-flite gets a bad rap that would is a non issue with stock VBs. The stock VB applys the band in 1st gear and will not normaly blow up the drum. Only aftermarket VBs don't apply the band in 1st and that is when the problems begin. Not all aftermarket VBs eliminate the low band function, just choose one with LBA and you can do a burn out in 1st If you just have to have the LBA eliminated then you got to spend the bucks on a billet drum or not break drive trains or do burn outs in 2nd... As for warming up the car in neutral that is only if something is wrong. If you just can't get rid of the problem (worn out VB or bushing) then there are aftermarket manual valves available for cheap that make the converter fill in drive. GM and Ford trannys all have there issues and nusciances also
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Mopar transmissions - how strong?
[Re: HotRodDave]
#1140351
12/22/11 08:20 AM
12/22/11 08:20 AM
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Joined: Mar 2010
Posts: 984 Tennessee
Hemi ragtop
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Tennessee
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Quote:
The t-flite gets a bad rap that would is a non issue with stock VBs. The stock VB applys the band in 1st gear and will not normaly blow up the drum. Only aftermarket VBs don't apply the band in 1st and that is when the problems begin. Not all aftermarket VBs eliminate the low band function, just choose one with LBA and you can do a burn out in 1st If you just have to have the LBA eliminated then you got to spend the bucks on a billet drum or not break drive trains or do burn outs in 2nd...
As for warming up the car in neutral that is only if something is wrong. If you just can't get rid of the problem (worn out VB or bushing) then there are aftermarket manual valves available for cheap that make the converter fill in drive. GM and Ford trannys all have there issues and nusciances also
Please explain the "start in neutral" comment. Does the converter drain after the engine is cut off? Why did stock 727's get started in park every day of their lives? I understand that the pump doesn't run unless in neutral, but the converter should be full from the last start up/drive.
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Re: Mopar transmissions - how strong?
[Re: HotRodDave]
#1140352
12/22/11 09:15 AM
12/22/11 09:15 AM
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Joined: Jan 2003
Posts: 24,562 Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
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Posts: 24,562
Brookeville, Md
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Quote:
The t-flite gets a bad rap that would is a non issue with stock VBs. The stock VB applys the band in 1st gear and will not normaly blow up the drum. Only aftermarket VBs don't apply the band in 1st and that is when the problems begin. Not all aftermarket VBs eliminate the low band function, just choose one with LBA and you can do a burn out in 1st If you just have to have the LBA eliminated then you got to spend the bucks on a billet drum or not break drive trains or do burn outs in 2nd...
As for warming up the car in neutral that is only if something is wrong. If you just can't get rid of the problem (worn out VB or bushing) then there are aftermarket manual valves available for cheap that make the converter fill in drive. GM and Ford trannys all have there issues and nusciances also
probably a good idea no matter rhe age or make of the vehicle to start it up and let it run for 20-30 seconds before you take off anyway. Not sure about anybody else but in my old cars the engine takes longer to warm up then the trans.
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Re: Mopar transmissions - how strong?
[Re: 1_WILD_RT]
#1140358
12/22/11 04:01 PM
12/22/11 04:01 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
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I Live Here
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.. stock valve bodies MUST be started and burned in 1st gear, only then you got low band apply! If starting in 2/3 or doing burnout from 2nd/3rd you got NO low band apply and the sprag takes it all.
So should I be starting a burnout in 1st, Drive or Second in my stock 727 440-6 car?
Dave
I think you'd better just park the damn thing... Sounds like breathing on it the wrong way may cause it to explode... Driving on the street the exploding drum is virtually a non-issue, just don't do big burnouts out of the water puddle... That shock when the tires grab dry pavement can flip the sprag..
Parking it is the only possibility in it's current state!
On one hand, I have no plans on a reverse manual valve body or running slicks......OTOH, I plan on doing burnouts on the street and since I don't have a trunkmonkey with a water bucket, it will be done on dry pavement.
Based on this thread I guess I'll just start it in manual Low.
Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: Mopar transmissions - how strong? *DELETED*
[Re: 6o4o]
#1140359
12/22/11 04:09 PM
12/22/11 04:09 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Romeo MI
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