Sideways burnout
#2630376
03/08/19 01:30 PM
03/08/19 01:30 PM
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Joined: Jan 2003
Posts: 7,495 Minnesota
Hemi_Joel
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How do you prevent going sideways when doing a burnout? It has been an issue for me. Thanks, Joel
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Sideways burnout
[Re: Hemi_Joel]
#2630378
03/08/19 01:32 PM
03/08/19 01:32 PM
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Joined: Aug 2003
Posts: 43,230 Bend,OR USA
Cab_Burge
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I think you can fix that with either tire diameter, make sure both tires are within 1/4 inch circumference of each other, or in the posi unit.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Sideways burnout
[Re: Cab_Burge]
#2630382
03/08/19 01:38 PM
03/08/19 01:38 PM
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Posts: 7,495 Minnesota
Hemi_Joel
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My car has a spool. I better check the tire daimeters
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Sideways burnout
[Re: DusterKid]
#2630409
03/08/19 02:35 PM
03/08/19 02:35 PM
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Hemi_Joel
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How much wheel speed is required?
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Sideways burnout
[Re: WHITEDART]
#2630497
03/08/19 06:35 PM
03/08/19 06:35 PM
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Joined: Dec 2005
Posts: 11,621 Fulton County, PA
CMcAllister
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Worn track surface will do that. Wonky corner weights and different size tires will as well.
If the results don't match the theory, change the theory.
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Re: Sideways burnout
[Re: CMcAllister]
#2630525
03/08/19 07:53 PM
03/08/19 07:53 PM
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Joined: Jan 2003
Posts: 19,376 Las Vegas
Al_Alguire
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More wheelspeed plain and simple..If it launches and drives straight after the launch then it clearly is not a brake, chassis or tire thing. Since you say its a burnout thing I assume only when which means you need more wheelspeed. HIgh gear and how much depends on the car but enough for it to go straight is the answer
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Sideways burnout
[Re: Al_Alguire]
#2630530
03/08/19 08:03 PM
03/08/19 08:03 PM
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Hemi_Joel
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It's a manual transmission car. I've been doing a burnout in second. When I have attempted it in third a couple times it has slipped the clutch or been right on the verge of slipping. I'm getting rid of the soft lock clutch. That should make 3rd gear burnouts no problem
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Sideways burnout
[Re: Hemi_Joel]
#2630534
03/08/19 08:20 PM
03/08/19 08:20 PM
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Joined: Jun 2014
Posts: 5,183
Porter67
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What gear and what type tire?
What rpm are you holding it at during the burnout?
Last edited by EV2Bird; 03/08/19 08:21 PM.
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Re: Sideways burnout
[Re: Hemi_Joel]
#2630549
03/08/19 08:56 PM
03/08/19 08:56 PM
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Joined: Jan 2003
Posts: 17,918 Akron, Ohio
ProSport
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As already mentioned, wheel speed. And a quick snap of the throttle. I snap the tires in 2nd and immediately go to 3rd gear. Car never moves, stays perfectly straight. And a line-lock makes the whole thing much easier and quicker. My Duster street car had 3.23 gears and no line-lock, I only had 5 passes on the car before selling it last Fall but that combo was causing me to go a little sideways also, I had to get real aggressive with the throttle to make it go straight. Making sure the tires are wet helps also of course.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Sideways burnout
[Re: FurryStump]
#2630936
03/09/19 10:40 PM
03/09/19 10:40 PM
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Hemi_Joel
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I press the brake pretty hard and set the line lock. Dump the clutch at 5000, try to hold it at around 5500-6000. 4.57 rear, 1.78 2nd, 1.30 3rd, Rear tires are MT ET Street, LT 30 x 13.5-15, Bias-Ply, front are 6.70-15 bias ply. Straight front axle, wilwood discs, 4 link rear, afco coil overs on all 4 corners.
So in 2nd gear 5500 rpm is 60 mph. 3rd gear at 6000 would be 90 mph
Last edited by Hemi_Joel; 03/09/19 10:49 PM.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Sideways burnout
[Re: Hemi_Joel]
#2630948
03/09/19 11:38 PM
03/09/19 11:38 PM
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Joined: Aug 2003
Posts: 43,230 Bend,OR USA
Cab_Burge
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The faster you spin the tires the sooner they will get hot enough to smoke, correct? I use to do all my burn outs in my old Hemi stick shift car in 3rd gear per some other SO CA Mopar factory back racers advice back a long time ago.
Last edited by Cab_Burge; 03/09/19 11:38 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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