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Burnout Procedure with Transgo TF2? #1222690
04/26/12 06:30 PM
04/26/12 06:30 PM
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Vista, California
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67Satty Offline OP
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What's the proper burnout procedure for a car with a 727 and Transgo TF2 shift kit? I've been reading these things online that say to never start a burnout with a car with a 727 in first gear or else you risk the dreaded sprag failure/exploding 727/loss of foot/etc...

But with a stock automatic valve body isn't my only choice to start in first gear? Because no matter if I put the selector in 1,2, or D I'm gonna be starting out in first right?

Thanks for any advice!

Re: Burnout Procedure with Transgo TF2? [Re: 67Satty] #1222691
04/26/12 06:56 PM
04/26/12 06:56 PM
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rickraw Offline
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a manual vb would be the best thing to have. u could try shifting with low tire spin. line pressure will be low & it may short shift for u, then u can wack on it & finish ur burnout.

Re: Burnout Procedure with Transgo TF2? [Re: rickraw] #1222692
04/26/12 07:07 PM
04/26/12 07:07 PM
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Alberta Canada
StrokerAspen Offline
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yeah, I have always started in 2nd or 3rd with a manual vb. But I think the big issue was back in the day, guys would yank the car into first coming out of the burn out box.

I agree with rickraw, just don't jump on the thing in the box, shift it through the gears easy.

I am no tranny expert though I asked a pretty beginner question earlier this week reguarding transmissions.

-Kenny

Re: Burnout Procedure with Transgo TF2? [Re: 67Satty] #1222693
04/26/12 11:37 PM
04/26/12 11:37 PM
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Mesa, AZ
cagebob1 Offline
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My trans has the TF2 shift kit. I simply set the line lock, pull the trans into drive, give it a moment to make sure it's engaged in gear, then start the wheels turning. You just need to be sure you get the r's up fast enough to keep em turning when the trans upshifts. I drive out of the water with the trans in high gear. Please bear in mind that my car does not have a ton of power, so I'm not putting much stress on any driveline/trans parts.

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Re: Burnout Procedure with Transgo TF2? [Re: cagebob1] #1222694
04/26/12 11:54 PM
04/26/12 11:54 PM
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jonestown,pa
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dmking Offline
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i have a transgo kit 727. if yours is a rear band apply starting in low should be ok. mine is full manual done by a local guy that had a record holding a body in the 60s. he said to do the burnout starting in first. do not get carried away with rpms. take it to second doing the same thing just keep them smoking and do not do a look at me burnout. when enough smoke let off the roll controle and slowly get into the throttle as it hooks to clean them off. never do a burn out in drive. keep rpms sane never do a dryhop. and stop before the line to pull it in low and roll in low a foot or so to set the sprag. he said do this and it will hold the power.
i know someone who busted 3 727s in someones hemi in a year being a jackass in the waterbox just like he runs his car doing a look at me tire fry and busted 3 gm 400s in his chevy.
do what you want or what makes you feel good but mine is the same trans since 1995. it gets a blessing every couple of years or a engine upgrade.
this is the first year i will have non stock parts with a billet front drumb.
the 4.x arm with a diesel 2nd band. lupo 9"@5400 to 5600 flash

Re: Burnout Procedure with Transgo TF2? [Re: dmking] #1222695
04/27/12 02:20 AM
04/27/12 02:20 AM
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Mt. Vernon, Ohio
dartman366 Offline
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I guess I just don't understand this "set the sprag" therory


Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
Re: Burnout Procedure with Transgo TF2? [Re: 67Satty] #1222696
04/27/12 11:10 AM
04/27/12 11:10 AM
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Quote:

What's the proper burnout procedure for a car with a 727 and Transgo TF2 shift kit?



Stick it in L/1st and leave it there to keep the band applied. Otherwise you should switch to a full manual vb that allows you to start in 2nd.

Re: Burnout Procedure with Transgo TF2? [Re: dartman366] #1222697
04/27/12 06:17 PM
04/27/12 06:17 PM
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Re: Burnout Procedure with Transgo TF2? [Re: BradH] #1222698
04/27/12 06:59 PM
04/27/12 06:59 PM
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Puyallup, WA
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StealthWedge67 Offline
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Quote:

Quote:

What's the proper burnout procedure for a car with a 727 and Transgo TF2 shift kit?



Stick it in L/1st and leave it there to keep the band applied. Otherwise you should switch to a full manual vb that allows you to start in 2nd.






This is not what TransGo says. I too have a TF-2 kit, and after reading all the horror stories on this sight about blowing up your tranny in the burnout box, I called transgo and asked them. The tech guy there (forget his name but he knew his stuff) said that the exploding sprag theory with 727's only applies to manual valve bodies that do not include a low band apply feature (I can't figure out why many of the MVB's are built like this, but apparently they are). The TF-2 (and TF-3 manual) kits DO apply the low gear band when in manual low, so you are not at risk of scattering the sprag. He said you are fine to start in low and then shift to 2nd once you get the tires up to speed. This was a direct conversation between myself and Transgo.


LemonWedge - Street heavy / Strip ready - 11.07 @ 120
Re: Burnout Procedure with Transgo TF2? [Re: StealthWedge67] #1222699
04/27/12 11:17 PM
04/27/12 11:17 PM
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jonestown,pa
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dmking Offline
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if the sprag fails the front drumb goes either twice the engine rpms or it goes even higher than twice.that what makes them blow up.
the setting the sprag thing does not make sence with the low band applyed but then my feet are involved i tend to be extra carefull and if it only makes sence for a non rear band apply i can do it anyway.

Re: Burnout Procedure with Transgo TF2? [Re: dmking] #1222700
04/28/12 12:05 AM
04/28/12 12:05 AM
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Romeo MI
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Quote:

if the sprag fails the front drumb goes either twice the engine rpms or it goes even higher than twice.that what makes them blow up.
the setting the sprag thing does not make sence with the low band applyed but then my feet are involved i tend to be extra carefull and if it only makes sence for a non rear band apply i can do it anyway.




2.2 times engine RPM... centrifugal force causes
the explosion... but the stock drum can take about
11,000 rpm before it comes apart so anything above
about 5200 rpm and its a problem(if the sprag fails)
I dont run a low band apply VB but I dont do stupid
stuff that will blow it

Re: Burnout Procedure with Transgo TF2? [Re: MR_P_BODY] #1222701
04/28/12 01:17 AM
04/28/12 01:17 AM
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redmist Offline
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I have a Copes Trans with billet front drum, TF-2, and it's still a full auto trans. He told me shift into 1st. Get some smoke, then into second.

Re: Burnout Procedure with Transgo TF2? [Re: 67Satty] #1222702
04/28/12 02:57 AM
04/28/12 02:57 AM
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I always thaught trans-go was not the hot set up........ Had their shift kit years ago and it sucked and had a TON of overlap on the 2nd to 3rd shifts then I got the cheeta non low band apply and never looked back. You mean fast cars run that stuff?


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: Burnout Procedure with Transgo TF2? [Re: Thumperdart] #1222703
04/28/12 12:08 PM
04/28/12 12:08 PM
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Quote:

I always thaught trans-go was not the hot set up........ Had their shift kit years ago and it sucked and had a TON of overlap on the 2nd to 3rd shifts then I got the cheeta non low band apply and never looked back. You mean fast cars run that stuff?




I could be wrong, but I've been told that the 2-3 overlap can be affected by how well the valve body kit was installed. I guess I'm unsure of WHY you would want a valve body that did NOT apply the low gear band, when in low gear??? Please explain.


LemonWedge - Street heavy / Strip ready - 11.07 @ 120
Re: Burnout Procedure with Transgo TF2? [Re: StealthWedge67] #1222704
04/28/12 01:02 PM
04/28/12 01:02 PM
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Romeo MI
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Quote:

Quote:

I always thaught trans-go was not the hot set up........ Had their shift kit years ago and it sucked and had a TON of overlap on the 2nd to 3rd shifts then I got the cheeta non low band apply and never looked back. You mean fast cars run that stuff?




I could be wrong, but I've been told that the 2-3 overlap can be affected by how well the valve body kit was installed. I guess I'm unsure of WHY you would want a valve body that did NOT apply the low gear band, when in low gear??? Please explain.




the arm 5.0, 4.2, 3.8 will dictate the over lap..
how fast they apply
When I bought my VB there wasnt a low band apply
and I dont feel like spending $550 -$600 for a new one

Re: Burnout Procedure with Transgo TF2? [Re: MR_P_BODY] #1222705
04/28/12 01:21 PM
04/28/12 01:21 PM
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Quote:

Quote:

Quote:

I always thaught trans-go was not the hot set up........ Had their shift kit years ago and it sucked and had a TON of overlap on the 2nd to 3rd shifts then I got the cheeta non low band apply and never looked back. You mean fast cars run that stuff?




I could be wrong, but I've been told that the 2-3 overlap can be affected by how well the valve body kit was installed. I guess I'm unsure of WHY you would want a valve body that did NOT apply the low gear band, when in low gear??? Please explain.




the arm 5.0, 4.2, 3.8 will dictate the over lap..
how fast they apply
When I bought my VB there wasnt a low band apply
and I dont feel like spending $550 -$600 for a new one



Exactly, when I bought my vb that`s all they offered and I`ve NEVER hurt the trans or anything for that matter and it`s been rebuilt several times over the years.........maybe not as safe as some have stated but it stays for now just like the stock main caps in my motor and in the 8 3/4...........


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: Burnout Procedure with Transgo TF2? [Re: MR_P_BODY] #1222706
04/28/12 01:23 PM
04/28/12 01:23 PM
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Vista, California
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67Satty Offline OP
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Yeah, I haven't noticed any 2-3 shift overlap problem with my Transgo TF2 shift kit. I think I have the 4.2 arm but can't remember for sure. Anyway, the shift from 2-3 is VERY firm and RIGHT NOW.

But if I had to do it over again I'd probably go for a manual reverse pattern valve body and aftermarket shifter but I was putting this thing together on a budget and I wanted to keep the stock shifter and console look.

Then again, before I spend a bunch more money on more 727-related stuff, I think I will just convert to a 4 speed. Now, that would be fun!

Re: Burnout Procedure with Transgo TF2? [Re: 67Satty] #1222707
04/28/12 01:27 PM
04/28/12 01:27 PM
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Lookin back I did run the 5.0 arm and Pro Trans put in a 4.2 iirc...................


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: Burnout Procedure with Transgo TF2? [Re: Thumperdart] #1222708
04/28/12 04:42 PM
04/28/12 04:42 PM
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Just put it in drive give it gas, make sure it shifts to second and come out of the water.. Did it for 4 years in mine while I put in a manual vb and its an old turbo action that's non low band apply.. And its the same trans that's been in my car from day one.. I don't even know how many passes it has on it..


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Re: Burnout Procedure with Transgo TF2? [Re: kissmyaspen] #1222709
04/28/12 06:01 PM
04/28/12 06:01 PM
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I just installed TF-3 Transgo kit in a TF999... it previously had a manual vb,I grab a old valve body and insstalled the TF-3 and 5600 govenor.Was I impressed,it shited like a good 727 and when you shifed it manually
I thought it was a manual vb!!The auto shift was 5200? DM

Re: Burnout Procedure with Transgo TF2? [Re: dodger mope] #1222710
04/28/12 06:36 PM
04/28/12 06:36 PM
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dmking Offline
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well the front drumb exploded two cars in front of me and the guy had his foot hit by parts through the blanket.and got hurt by it
you decide if it is worth it for rear band apply. what i seen i am not wanting that to happen to my foot. i got a front drumb also.

just like i did not have a problem with head shake on my zx12 and did not get the 400 dollar dampener. well i got head shake at the 1000ft mark and went down at over 130mph. that 400 i did not want to spend cost me 1500 bucks plus i had to buy one for 400.............
and the leathers were junk after that also.

Re: Burnout Procedure with Transgo TF2? [Re: StealthWedge67] #1222711
04/29/12 09:43 AM
04/29/12 09:43 AM
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Quote:

This is not what TransGo says...
The tech guy there (forget his name but he knew his stuff) said that the exploding sprag theory with 727's only applies to manual valve bodies that do not include a low band apply feature ...


That guy doesn't understand the problem, and he is dead wrong. Well, he is half right about when the selector is in manual low; the band will hold.

The biggest concern with a Torqueflite automatic valve body is the transmission (not the driver) downshifting back into 1st (and this never applies the rear band). In the wrong circumstances this can damage the sprag. Like when lifting and the tires stop spinning, the trans goes into 1st without low band apply (selector in 2 or D), and the driver hits the throttle. Or the tires grip, slip, grip, etc.

Then any time the selector is in "D" or "2" it can go into low gear on its own and the sprag won't hold, allowing overspeed of the front drum.

Re: Burnout Procedure with Transgo TF2? [Re: dmking] #1222712
04/29/12 10:41 AM
04/29/12 10:41 AM
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Quote:

well the front drumb exploded two cars in front of me and the guy had his foot hit by parts through the blanket.and got hurt by it
you decide if it is worth it for rear band apply. what i seen i am not wanting that to happen to my foot. i got a front drumb also.





yeah but something else broke first like a u-joint... it just didnt happen for the hell of it... we drag race.... $h!t happens..


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67 Satellite NSS/E
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'07, '10, '12 Mopar Nats runner-up Street.
Re: Burnout Procedure with Transgo TF2? [Re: kissmyaspen] #1222713
04/29/12 12:57 PM
04/29/12 12:57 PM
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jonestown,pa
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dmking Offline
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they rolled the sprag..... he did not go 2 feet from the starting line.

Last edited by dmking; 04/29/12 12:59 PM.
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