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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Joined: Nov 2007
Posts: 1,600 Alberta Canada
StrokerAspen
top fuel
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top fuel
Joined: Nov 2007
Posts: 1,600
Alberta Canada
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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
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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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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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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.
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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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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
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
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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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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
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
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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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Joined: Aug 2007
Posts: 1,271 Vista, California
67Satty
OP
pro stock
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OP
pro stock
Joined: Aug 2007
Posts: 1,271
Vista, California
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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!
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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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Joined: Jul 2004
Posts: 19,317 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
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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.....
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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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Joined: Aug 2004
Posts: 1,413 Newark,Ohio
kissmyaspen
pro stock
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pro stock
Joined: Aug 2004
Posts: 1,413
Newark,Ohio
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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..
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.
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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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Joined: Jan 2003
Posts: 16,925 NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,925
NC
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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.
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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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Joined: Apr 2011
Posts: 319 jonestown,pa
dmking
enthusiast
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enthusiast
Joined: Apr 2011
Posts: 319
jonestown,pa
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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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