Forgive me if this sounds completely stupid, i dont know a whole hell of alot about dragging.

but in the many hours i have in my own boring head at work i was considering the idea of launching from the line with the E-brake pulled up then releasing.

The reason i thought of it was people having trouble with axles on these cars

Anyway these are the pros cons that i could think of

Cons: More difficult to get a good reaction time
Not releasing the Ebrake quick enough would slow your launch down
1 more thing to worry about

Pros: You could find your clutch grab point, and have everything snugged up in the driveline all the way to the wheels, so that when you launch, you reduce the slamming effect on your axles, also reducing the risk of breaking your tires loose when everything tightens up.



Again im just talking out loud here....

Does anyone do this? does it make sense? am i an idiot?

 

sounds good to me. When i was at the track for the first time a guy approached me and said i should try what you were saying cuz im wheelhopping and slipping clutch really bad. next time i go to the track im gonna try it.

 

wont work car will either stall, slip the clutch, or most likely you will just roll through the staging beams because the ebrake wont hold it

 

Yeah if you do try it pull that e-brake WAY up. I snapped the cable in mine doing this.

 

there isn't any point to it. someone explain to me the logic of holding the car in place when you're looking to accellerate?

 

I can think of one good reason but thats just my opinion

 

hes talking about holding the car in place while under load on the launch, just like powerbraking an automatic

 

Right but the e-brake contact points are generally much smaller and weaker.

 

i wasnt the one wondering if it would be beneficial

 

hmmm i think your missing the point.....there doesnt need to be very much loading to get a benefit from this.

All im suggesting is that you snug up everything from the clutch down to the rubber on the ground....and use the ebrake to just hold that slight pressure,

This way your avoiding the CLUNK of every single part through the drive system including the rubber on the ground which would put an instant high pressure jolt on both the axles and the rubber on the ground.

which would contribute to axle breakage, and tirespin.

(im an engineer, forgive my long winded explaination)

 

from what ive seen the axles are not breaking from the initial "hit" but more so from wheel hop, you would get the clutch uber hot just holding it on the flywheel while not applying enough force to overpower the ebrake and not stalling it

 

meh 1-2 seconds of just enough pressure to get the ass end to squat a bit wont do much.

Im not talking burnout pressure here. im just talking enough pressure to get the driveline tight.

 

trust me 1-2 seconds is plenty to get it way hot, and why would the ass end squat with no forward momentum

 

hehe have you never accidentally tried to drive with your E-brake on?

 

I know someone who snapped an axle doing this.

I don't know about any of your, but I know my e-brake barely keeps my car from rolling on a slant, much less under load. Give it a try, but I don't think it'll keep you where you want to be.

 

ok well i didnt say anything before, but why in the hell do you want the ass end to squat on a FWD car you should want the exact opposite

 

+1^^^ thats why they put wheelie bars on fwd

 

meh i dont think im explaining exactly the benefit that im talking about.

The best analogy i can think of is to think of a slingshot.

sitting at the line is the same as the slingshot rubber being slack.

Now the act of pulling the sling back and releasing can be considered your launch.

Preloading some pressure with your ebrake could be considered pulling the slingshot back JUST far enough to take up the non resistant slack in the rubber.
The same as removing the slack in your driveline.

if you dont do that, on your pullback motion you will have that point where there is NO resistance from the rubber (driveline) then in 1 instant you have all your power applied and then the rubber (driveline) gives its resistance. and ALOT of pressure is applied to the system.

This pressure as your entire driveline, from clutch to axles to rubber on ground, is the hardest point on your parts, and the point that will cause the MOST chance of breaking loose your tires.


once again, this is all just thought and posturing, whether its viable is a question, but the physics of it is sound. i know that for sure.

Perfect world situation....imagine a cable attached to the back of your car so that you can put that small amount of pressure to your tires, and it instantly releases when you punch it.

Im just considering the possibility that your Ebrake could give you that same slingshot effect.

 

Try it.

 

I use my E-brake as a line lock in the water box. I understand what you mean by using the brake on the line but don't think it's the best idea- if you don't drag yourself through the lights you will have to get it just perfect then get your hand on the shifter quick to shift to second gear. Try it and see what happens.

 

this is exaclty what i do!!! i've done with all my cars srt, evo and even with the ss/sc.. from my experience i'd say that this helps the ss/sc the most do to the amount of torque it puts out at such a low rpm.

i've even raced a friend of mine that has stage 2 ss/sc with exhaust intake and etd and i took him by about 1 car lenght and all i have is stage 2. also i've raced an evo with exhaust and bov and after his amazing first gear i stayed right near his back door till about the middle of third where we both had to slow down...

also with an 05 srt4 acr i raced my friends 05 evo... all i did was disconnect the wastegate and at the end of the race another friend of mine asked the evo owner if he gave me a head start.. the truth is we ran heads up and i stayed with him in first, pulled in second, and by third (near the end of the race) i was ahead by 2 cars!!!

 

ok so what is your best 60 foot at the track

 

haven't taken it to the track yet, since i live in Long Island, NY just getting to the closest track (i think it's in Englishtown, NJ) would cost me atleast $100 and just to race 3 times is $30.

i usually go to the local street races but only once or twice a month.

(i know street racing isn't that smart but believe me the only reason people do it is lack of money to get to the track since their so far apart. if there where more around or they were cheaper along with the price of gas people wouldn't do it.)

IMO police should block off certain streets at specific times and allow people to street race like in places that are full of warehouses that are closed at night, that would definetly help... if they wanted that could check for license, registration and insurance to enter the strip

 

oh geez