slicks and transbrake obsolete?
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slicks and transbrake obsolete? with the way guys in our cars are launching the m/t drag radials on a footbrake (1.35-1.40 60' are getting to be more common with some folks here), is a trans brake launch on slicks even worth it anymore?
is there a need for bias ply tires and shocking the driveline ( talking cars looking for 1.3 60' and slower)? here is one of our local "girl" ls1 4L60e racers getting it done on the 28" radials.
http://www.drivelinestudios.com/nbna...alsweb1024.jpg
just wondering what you all thought.
is there a need for bias ply tires and shocking the driveline ( talking cars looking for 1.3 60' and slower)? here is one of our local "girl" ls1 4L60e racers getting it done on the 28" radials.
http://www.drivelinestudios.com/nbna...alsweb1024.jpg
just wondering what you all thought.
i was thinking about this a while back myself. with guys like Wolfe going 7.50s on drag radials, is there really any reason any of us in the 9-12 second range should need a full big *** slick. i mean if they can hook up those cars and run those numbers on a street tire, there is no reason a 9-12 second car should need any more tire than that. hell, even on his 7.5x passes on drag radials Wolfe was still going 5.1x 1/8th miles so its still getting out there pretty hard. i'm setting my car up to run radials and/or a 28x10.5" slick depending on what class it ends up in here locally.
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well i dont want to compare the 7 second radial tire cars b/c they are running a 30" 315 drag radial. lets keep the discussion to 9 second and slower cars. basically the vast majority of drag cars on this board running a 28" tire.
i could see that a 2 step would be advantagious due to the same RPM launch consistancy, making it easier to dial in the suspension etc would be good. when i run on radials i intend on footbraking to whatever rpm and gettin it done. on slicks thats a different story.
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ok, so definately reaction time is an advantage along with consistency. but to me it also seems like a slick/TB is more things that could go wrong (over complicating things). again talking 9-12 second cars here.
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Cars with DR's need to hit the tire harder than cars with slicks. DR's are certainly not superior to slicks. Most people with LS1 cars have super craptastic off the shelf converters that are super in-effecient and not what their car needs.
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Originally Posted by Ben R
Cars with DR's need to hit the tire harder than cars with slicks. DR's are certainly not superior to slicks. Most people with LS1 cars have super craptastic off the shelf converters that are super in-effecient and not what their car needs.
what does converter efficiency have to do with hwo well the car launches on slicks versus DRs?
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Originally Posted by badass 2002 z28
My car leaves better off a footbrake than a trans brake. It 60fts about the same with both, but overall the suspension works better footbraking.
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Originally Posted by gator's 99TA
you dont mean "shock" the tires harder with radials right? do you mean cars with radials to run the same number must put more power to the ground? i am confused.
what does converter efficiency have to do with hwo well the car launches on slicks versus DRs?
what does converter efficiency have to do with hwo well the car launches on slicks versus DRs?
Converter effeciency is a trate of the crappy converters I was trying to describe. It really have TOO much bearing on how a car launches, but it does matter. Speaking of converter effeciency I have a racepak graph from a Nostalgia Pro Street racer who saw 1:1 through the lights. Pretty neat stuff.
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So, a Drag Radial will hook as fine as a Slick if the Suspension is prepared to.
a Slick would hook on "any" suspension setup...
Kinda like that?
325/50/15s vs Stiff Slicks... ( slicks are cheaper!
)
a Slick would hook on "any" suspension setup...
Kinda like that?
325/50/15s vs Stiff Slicks... ( slicks are cheaper!
) 
Originally Posted by gator's 99TA
i remember joe overton saying the same thing about his car as well.
I agree with Ben. With a drag radial you need to shock the tire. The harder the shock the better the hook if you can control it. If you set the car up correctly a trans brake will out launch a footbrake car.
Originally Posted by gator's 99TA
it just seems so much more simple. no trans brake. no 2 step. no anything. just put in 20 psi in the tires and footbrake it. bam, 1.3-1.4 60' times.
This statement is my car to a T.
Coach
Originally Posted by skipperbisket
i was thinking about this a while back myself. with guys like Wolfe going 7.50s on drag radials, is there really any reason any of us in the 9-12 second range should need a full big *** slick. i mean if they can hook up those cars and run those numbers on a street tire, there is no reason a 9-12 second car should need any more tire than that. hell, even on his 7.5x passes on drag radials Wolfe was still going 5.1x 1/8th miles so its still getting out there pretty hard. i'm setting my car up to run radials and/or a 28x10.5" slick depending on what class it ends up in here locally.
The difference here is the guys runnin these 7.5's on a DR are making HUGE power and are in a "controlled" spin most of the time
I do not use a transbrake or 2 step, but I do use a proportioning valve so I can foot brake my 4600 converter higher with the MT drag radials. You might want to look into one of those John.
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Originally Posted by Coach 02 A3 Z/28
This statement is my car to a T.
Coach
Coach
coach you dont run a transbrake? that really surprises me with you into braket racing so much. esp with how much madman pushes the tb. i figured the footbrake woudl slow your r/t
Originally Posted by gator's 99TA
coach you dont run a transbrake? that really surprises me with you into braket racing so much. esp with how much madman pushes the tb. i figured the footbrake woudl slow your r/t
Originally Posted by gator's 99TA
coach you dont run a transbrake? that really surprises me with you into braket racing so much. esp with how much madman pushes the tb. i figured the footbrake woudl slow your r/t