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Re: Burnouts,exploding trannys and lauch proceedure
[Re: shoebox]
#987190
05/06/11 03:26 PM
05/06/11 03:26 PM
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Joined: Mar 2003
Posts: 2,498
PA
moparacer
top fuel
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top fuel
Joined: Mar 2003
Posts: 2,498
PA
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On the burnout, start in second and shift to high, come out of the water and don't let the tires grab hard...
Pretty much it...
67 Barracuda street/bracket car 11.27-119
68 Dart 502 BB 8.70s-152
414 cid SB Dragster 7.65-174
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: moparacer]
#987193
05/06/11 04:00 PM
05/06/11 04:00 PM
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Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger
master
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master
Joined: Nov 2004
Posts: 2,825
Sk. Canada
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Quote:
On the burnout, start in second and shift to high, come out of the water and don't let the tires grab hard...
Pretty much it...
This is wrong.
Your automatic will start out in 1st by itself. Therefore you must start in low to apply the band, then go in to 2nd and don't look back.
I've got alot of runs on mine, same same, and still works like day one.  (10 yrs, 4 championships...blah blah)
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: shoebox]
#987194
05/06/11 04:03 PM
05/06/11 04:03 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:
Leave in manual low?
No, put the shifter in second then hit the pedal pretty
good... its going to start out in low then it'll
shift on its own pretty quick then get the revs up
a bit more and then shift into drive... let it burn
forward a few feet then back off the pedal... pull to
the line... you can manually shift it if you want or
put it in drive... your choice
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: MR_P_BODY]
#987195
05/06/11 04:12 PM
05/06/11 04:12 PM
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Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger
master
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master
Joined: Nov 2004
Posts: 2,825
Sk. Canada
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Quote:
Quote:
Leave in manual low?
No, put the shifter in second then hit the pedal pretty
good... its going to start out in low then it'll
shift on its own pretty quick then get the revs up
a bit more and then shift into drive... let it burn
forward a few feet then back off the pedal... pull to
the line... you can manually shift it if you want or
put it in drive... your choice
I don't agree with this(Respectfully) because you will be starting out against the sprag alone. Put in low and you will apply the low band, therefore helping the sprag hold all of the torque you are putting to it , trying to get the tires lit.
Remember, this is not a mv body.
Please explain if I'm off base here. 
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: RemCharger]
#987196
05/06/11 04:31 PM
05/06/11 04:31 PM
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Joined: Mar 2003
Posts: 2,498
PA
moparacer
top fuel
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top fuel
Joined: Mar 2003
Posts: 2,498
PA
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With an hand grenade 727 if I COULDNT start out in second, I would switch to a manual valve body that COULD... All I am saying....
67 Barracuda street/bracket car 11.27-119
68 Dart 502 BB 8.70s-152
414 cid SB Dragster 7.65-174
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: shoebox]
#987197
05/06/11 04:37 PM
05/06/11 04:37 PM
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Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOrk !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
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Quote:
I need the cheaper option.
The CHEAPER ... in the long run .... is a aftermarket front drum. THEN the trans can NOT blow-up. The sprag might still fail .... but then all you have to R&R is that one item.
IF you go the route of all then fancy shields and blankets .... the problem then ... is IF the trans blows-up and then is successfully contained .... the trans then is TOAST ...and maybe even the converter.
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: RemCharger]
#987198
05/06/11 04:59 PM
05/06/11 04:59 PM
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Joined: Feb 2007
Posts: 5,080
organ
maximum entropy
master
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master
Joined: Feb 2007
Posts: 5,080
organ
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Quote:
Quote:
Quote:
Leave in manual low?
No, put the shifter in second then hit the pedal pretty
good... its going to start out in low then it'll
shift on its own pretty quick then get the revs up
a bit more and then shift into drive... let it burn
forward a few feet then back off the pedal... pull to
the line... you can manually shift it if you want or
put it in drive... your choice
I don't agree with this(Respectfully) because you will be starting out against the sprag alone. Put in low and you will apply the low band, therefore helping the sprag hold all of the torque you are putting to it , trying to get the tires lit.
Remember, this is not a mv body.
Please explain if I'm off base here.
i'm with remcharger on this. anything you can do to protect the sprag should be implemented. manual low may seem redundant if it jumps right into second, but weird things happen. a lot of stuff blows up in the burnout box. i ran an automatic valve body for a long time, and i always started in manual low, whether in the burnout box, or on the track.
for what is the good life if not doing things thoughtfully?
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: maximum entropy]
#987199
05/06/11 05:23 PM
05/06/11 05:23 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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I had a auto V/B in mine for a couple years. put it in 2 and put it to the wood till it hits second then come out of the water.. and if your going to shift it, start in first and go through the gears.. the stock drums went through a lot during the 60's and 70's in top fuel cars... and i have only seen 2 come apart that rally blew up...   so drive it like u stole it.  By the way what combo you have?
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: Burnouts,exploding trannys and lauch proceedure
[Re: shoebox]
#987201
05/06/11 10:42 PM
05/06/11 10:42 PM
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Joined: Jul 2006
Posts: 4,319
Puyallup, WA
StealthWedge67
master
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master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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To the best of my knowledge, the Transgo TF-2 (auto vb) is NOT a low-band apply modification. To get the low band to apply, you still have to manually shift the trans into low. For this reason, I would always manually shift the trans into low when starting a burnout, OR and especially when launching the car. Otherwise, you're relying on the sprag to hold 1st gear. (at least this is how my trans builder explained it to me...  ) I have the TF-2 vb. I start my burnout in 1st and quickly move to second as soon as I get the tires rotating along. Try to avoid "catching" the tires while still under power when pulling out. This procedure seems to be working for my 727.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: dOrk !]
#987202
05/06/11 11:32 PM
05/06/11 11:32 PM
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Joined: Dec 2008
Posts: 415
Peru
cbarracuda
mopar
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mopar
Joined: Dec 2008
Posts: 415
Peru
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Quote:
Quote:
I need the cheaper option.
The CHEAPER ... in the long run .... is a aftermarket front drum. THEN the trans can NOT blow-up. The sprag might still fail .... but then all you have to R&R is that one item.
Are you sure? Have been racing so many years with factory drums
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: cbarracuda]
#987203
05/07/11 12:42 AM
05/07/11 12:42 AM
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Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOrk !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
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Quote:
Are you sure? Have been racing so many years with factory drums
I too have also had good-luck with the OEM drums ... but I have never broken a sprag. And to be perfectly honest ...I potentially have a WORSEer problem than 99.9% of the others ... I drilled the band surface THROUGH TO THE CLUTCHES (like a vented rotor) as an experiment way back when. If my sprag failed ...I am sure that my drum would come-apart sooner(lower RPM) than a stocker.
And the more I think about all this ... the more I am thinking about changing THAT DRUM before I see any other drag-strip or street action. It is a 65 trans in my 62 ..and that stuff is getting harder to find now..... ESPECIALLY that 65 Race Hemi converter.
THAT THING has been a sweetheart. SOMETHING about that converter has me keeping putting that back in the car for years ...even though I had a good Fairbanks WD deal ...way-back-when .... 
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: shoebox]
#987204
05/07/11 01:01 AM
05/07/11 01:01 AM
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Joined: Oct 2003
Posts: 7,506
Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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How you do your burn out will depend on how your trans is set up. I run a 727 with a 4 clutch steel front drum and a Turbo-Action Cheetah Pro street valve body - has low band apply and will upshift automatically in drive. I pull in to the water in drive ( 1st gear ). With the line lock on, I dip in to the throttle and let the trans upshift in to 3rd. I then release the line lock and feed in more throttle as the car powers out of the water - sometimes referred to as a "power burn out". As the tires get traction and the motor starts to lug down, I ease out of the throttle around 20 feet in front of the staging lights. As I come to a stop, I dump it in neutral, give it a blip or two to make sure the motor is clean and the secondary squirters are fuel charged, and I am ready to go. Again, this is just my proceedure. http://s79.photobucket.com/albums/j160/jcailey/?action=view¤t=MOV01123.mp4
Fastest 300
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: Crizila]
#987205
05/07/11 01:17 AM
05/07/11 01:17 AM
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Joined: Dec 2008
Posts: 415
Peru
cbarracuda
mopar
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mopar
Joined: Dec 2008
Posts: 415
Peru
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Re: Burnouts,exploding trannys and lauch proceedure
[Re: CrazyD]
#987208
05/07/11 10:29 AM
05/07/11 10:29 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 it was a MANUAL valve body 727, burnout should start in what gear?
2nd or high gear... if you have a light car or plenty
of power just start in high... your trying to get
heat into them and the faster tire RPM does it quicker
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