Drag Racing Questions...
Race Director
Joined: Jan 2002
Posts: 19,557
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From: I love you & miss you Linda
2017 C7 of the Year Finalist
St. Jude Contributor
Originally Posted by MGorman
........................................ .......
Do a long (time wise at least 10-15 second) burnout. Release the clutch quickly (first gear) as soon as the tires start to spin apply the brakes with your left foot in order to keep the car from moving. ........................................ ....
Do a long (time wise at least 10-15 second) burnout. Release the clutch quickly (first gear) as soon as the tires start to spin apply the brakes with your left foot in order to keep the car from moving. ........................................ ....
Burning out with Run-flats.
Don't do it.........
Safety Car
Joined: Jun 2003
Posts: 4,640
Likes: 0
From: Sunshine State
Originally Posted by byte_me
I just came from the track- 97 coupe, 315's and run flats...when I got to the burn out pit- I turned off traction control...put my foot on the brake, one on the gas and let them loose...it would have burned till the tires were gone...The torque will overcome brake force any time...unless you have half your spark plugs out...yours should do the same...
Safety Car
Joined: Jun 2003
Posts: 4,640
Likes: 0
From: Sunshine State
Originally Posted by blackbelt
Maybe your misinformed.
A burnout while on the brakes is completly possible. Rear brakes make up for very little of braking so when you actually do hit brakes maybe 30% is rear and the front is 70% (don't know what it is precisley but probably near that.) Anyways the power of the car easily over comes rear brakes allowing a burnout no line lock needed. The trick is to know how to do it correctly, you can't let the clutch go and then slam on brakes you will just bog and look really stupid. You have to get on them just enough to not allow fronts to turn. Only down side is you are going to go through rear pads really fast. But your right misinformation on here make me want to
A burnout while on the brakes is completly possible. Rear brakes make up for very little of braking so when you actually do hit brakes maybe 30% is rear and the front is 70% (don't know what it is precisley but probably near that.) Anyways the power of the car easily over comes rear brakes allowing a burnout no line lock needed. The trick is to know how to do it correctly, you can't let the clutch go and then slam on brakes you will just bog and look really stupid. You have to get on them just enough to not allow fronts to turn. Only down side is you are going to go through rear pads really fast. But your right misinformation on here make me want to
Thread Starter
Advanced
Joined: Feb 2005
Posts: 82
Likes: 0
From: Sacramento CA
Hey guys, I didn't mean to start a flame war! Nonetheless, I do appreciate all the info. 
I am going to run the car again next week at the drags using a much softer launch technique to minimize wheel spin...hopefully I can break into the thirteens this time!
I am going to run the car again next week at the drags using a much softer launch technique to minimize wheel spin...hopefully I can break into the thirteens this time!
Melting Slicks
Joined: Jul 2003
Posts: 3,427
Likes: 2
From: Fountain Inn, South Carolina
Originally Posted by Korreck
What you presented was a lot of bull. Run flats don't get sticky. You can't do a burnout holding your foot on the brake. And a 13 sec car can't do better than 1.90 even with DR's.
So much misinformation here it makes me want to
So much misinformation here it makes me want to
Your right that run flats don't get sticky... getting sticky is about having rubber compounds that get really soft when heated. Run Flats do not use these compounds in the tires.
However, what we used to refer as brake torque'ing.... spin the rear tires while holding the brakes on enough the front tire keep the car from moving.... he!! yes, that was a blast. In your Vette the brake porportioning valve is set up so that about 80% of braking is done up front... and 20% from the rears.
While driving, you hit your brakes and the car nose dives... placing tons of weight on the front tires... allowing for lots of braking power because of the high traction. The rears are the opposite, the rear of the car lifts up causing less traction. Hence the reason for porportioning of the brakes from front to rear.
So.... it is easy to over power the stopping abiblity of the rear brakes with the power of the engine.
Last edited by George8211; Apr 1, 2005 at 02:36 AM.
Drifting
Joined: Apr 2001
Posts: 1,936
Likes: 9
From: Menifee California
Originally Posted by Korreck
Another one. Front brakes wear due to weight transfer. They work more than the rear because of that. I'll guarantee a good set of breaks cannot be defeated by spinning tires. More
Since you know sooooo much just a quick ? for you. how come i see auto and stick shift cars at the track doing burnouts... with no line lock and they are staying in place....??? In fact i have done it. Oh Oh i forgot it must be that magical fairy that installs a line lock that i can't see because we all know that is the only way to do a burnout....
Drifting
Joined: Apr 2001
Posts: 1,936
Likes: 9
From: Menifee California
Originally Posted by George8211
Your right that run flats don't get sticky... getting sticky is about having rubber compounds that get really soft when heated. Run Flats do not use these compounds in the tires.
However, what we used to refer as brake torque'ing.... spin the rear tires while holding the brakes on enough the front tire keep the car from moving.... he!! yes, that was a blast. In your Vette the brake porportioning valve is set up so that about 80% of braking is done up front... and 20% from the rears.
While driving, you hit your brakes and the car nose dives... placing tons of weight on the front tires... allowing for lots of braking power because of the high traction. The rears are the opposite, the rear of the car lifts up causing less traction. Hence the reason for porportioning of the brakes from front to rear.
So.... it is easy to over power the stopping abiblity of the rear brakes with the power of the engine.
However, what we used to refer as brake torque'ing.... spin the rear tires while holding the brakes on enough the front tire keep the car from moving.... he!! yes, that was a blast. In your Vette the brake porportioning valve is set up so that about 80% of braking is done up front... and 20% from the rears.
While driving, you hit your brakes and the car nose dives... placing tons of weight on the front tires... allowing for lots of braking power because of the high traction. The rears are the opposite, the rear of the car lifts up causing less traction. Hence the reason for porportioning of the brakes from front to rear.
So.... it is easy to over power the stopping abiblity of the rear brakes with the power of the engine.
thanks good to see someone here knows what they are talking about..
Safety Car
Joined: Jun 2003
Posts: 4,510
Likes: 240
From: Coconut Creek FL
Originally Posted by Korreck
What track you running at? I see your're in Florida. I would like to put some money on this. And you mention "the burn out pit". You mean the water box? Strange terminology for a drag racer. More
The track is Moroso MotorSports Park in Palm Beach- and what exactly are you wanting to put money on?? a burn out or smoking the tires with the brakes on?? I would take your money my sarcastic friend anytime you wish...oh, and excuse the newb track guy by referring to the "water box" as a "burn out pit"... nary did I call my self a drag racer...I said what I said because thats what it did...once the tires were smoking I let the brakes go and I just sat there inching ever so slowly forward while the tires were cooking...hell, there was even a front wheel drive car doing this...next time I go- I will send you an invite...and show you how to power brake an automatic...
Christ- the inept attitude of people who think they know everything is friggin' unbelievable sometimes...I wish I had a dime for every smart *** comment that some insist on having because they "Think" they know everything about everything...bring your money...please, bring your money...
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Burning Brakes
Joined: Jul 2004
Posts: 866
Likes: 5
From: Jensen Beach FL
Originally Posted by Korreck
What you presented was a lot of bull. Run flats don't get sticky. You can't do a burnout holding your foot on the brake. And a 13 sec car can't do better than 1.90 even with DR's.
So much misinformation here it makes me want to
So much misinformation here it makes me want to
Fact: I have turned a 1.93 sixty foot time on run-flats with a MN6.
Fact: I can do a stationary burnout for as long as I like while holding my foot on the brake.
Fact: I have turned a 1.82 sixty foot time on DR’s in a 13 sec LT1 Camaro.
None of these things are uncommon.
QUOTE “And a 13 sec car can't do better than 1.90 even with DR's.” You’ve got to be kidding me!!! Have you ever actually been to a drag strip? Talk about
You sir are the one who is spreading misinformation.
I apologize to the originator of this thread for this controversy. I merely attempted to relay to you my real world experience regarding launching a MN6 car on run-flats.
I’m out.
Safety Car
Joined: Jun 2003
Posts: 4,640
Likes: 0
From: Sunshine State
Originally Posted by byte_me
The track is Moroso MotorSports Park in Palm Beach- and what exactly are you wanting to put money on?? a burn out or smoking the tires with the brakes on?? I would take your money my sarcastic friend anytime you wish...oh, and excuse the newb track guy by referring to the "water box" as a "burn out pit"... nary did I call my self a drag racer...I said what I said because thats what it did...once the tires were smoking I let the brakes go and I just sat there inching ever so slowly forward while the tires were cooking...hell, there was even a front wheel drive car doing this...next time I go- I will send you an invite...and show you how to power brake an automatic...
Christ- the inept attitude of people who think they know everything is friggin' unbelievable sometimes...I wish I had a dime for every smart *** comment that some insist on having because they "Think" they know everything about everything...bring your money...please, bring your money...
Christ- the inept attitude of people who think they know everything is friggin' unbelievable sometimes...I wish I had a dime for every smart *** comment that some insist on having because they "Think" they know everything about everything...bring your money...please, bring your money...
Drifting
Joined: May 2001
Posts: 1,770
Likes: 2
From: IL
Originally Posted by Korreck
What happens when you step on the brake. My wheels quit turning, don't yours? To do a 10 or 15 sec burnout like he said to do you need a line lock. Now ask me what that does. OK, I'll tell you. It locks the front two brakes and allows the rear wheels to spin.
I'm going to turn this over to Mark (mwagne16) and go back to the drag forum where I belong.
Bob
I'm going to turn this over to Mark (mwagne16) and go back to the drag forum where I belong.
Bob
Team Owner
Joined: Oct 2001
Posts: 46,766
Likes: 5
From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Originally Posted by Korreck
Thanks for the correction. I hope to go down with Marc.
Bob
Bob
and you guy's can all come down together. Of course this months race theme is going to be which one of us puts Marc on the trailer and what round 
Bob
Safety Car
Joined: Jun 2003
Posts: 4,640
Likes: 0
From: Sunshine State
Originally Posted by 16Again
Alright, alright I'll quit and try to be nice.I don't think we can get Fuzzy down there. I did everything but go get him and tie him up for last week.
Marc and myself will be at Bradenton the Thur before we head south to Moroso. Damn good cheese burgers and a lot of practice. Maybe we could turn it into an unofficial Corvette Challenge. Loser buys the cheese burgers.
Bob
Advanced
Joined: Dec 2003
Posts: 60
Likes: 0
From: Champaign IL
Drag Radials
Wow! I just started looking at this site and already I've got confused feet. So, when I get my BFG DR's at what rev. do you lunch so that you don't do a burn out at the line? As for the burn outs - I guess I'll just have to practice on some dead end street to see what works better - "brake-on" "brake-off" grasshopper!