Launching.....Killercanary clear your pm box...

nmcgrawj

nmcgrawj

Advanced Member
Sep 28, 2003
3,651
4
68
Indianapolis, IN
#1
I will just post the message here for anyone else who might be of help.....

Could you go over how you launch so well? In the past i have tried to just get the clutch right before engagement and when i take off, to come off the clutch and to give it as much gas as possible without losing traction.

Based off what i have read, it seems you do the opposite. It seems like you floor it and come off the clutch depending on if you have traction. So if you lose traction to u put the clutch back in a lil bit?

Thanks for the help, i want to learn from the Pro's! :hail2:


-Nate
 
#3
Yeah, I feather the clutch out. If you dump the clutch you will shock the tires and spin unless you have the suspension and tires to hold such a launch. It does take practice but after time you'll get it. Most of my video's have no sound (I hope to fix that soon) but these two do. You can hear the clutch slip and throttle modulation in both. It took me a while to do this, but the nice thing is I was cutting mid to low 1.7's on 245-50-16 nitto DR's and mid 1.6's on 315-35-17 nitto DR's launching like this. If you have a spec stage 3 clutch good luck accomplishing a launch like this... there is just no slipping those clutches. I ran the motorsport HD when these videos were made. I can still do this with my new clutch but when I side step it this clutch now holds unlike the old one. Click this link for a short, crappy video where you can hear the launches with the clutch slip.

http://s12.yousendit.com/d.aspx?id=E4FF2B8CF8E18C5C2AE889D5D9C16CF7
 
#4
So did i have it right? You guys floor the gas when the green lights up and feather the clutch in or out depending on traction?

When u are waiting for the tree to drop, where are your feet on the pedals? How high do you hold the revs? Is the clutch all the way in or right at the point of engaging? I know all this is going to vary but im trying to find out exactly what u guys do so i can atleast start practicing the right way.

Thanks
 
#5
you have to do it alot under many conditions ,there is no substitute,it is something that most be practiced to a point where you are no longer thinking about it,it has to be subconscious,it drove my son nuts one night who tried to beat me.
 
#6
Yea i know its gotta be like that....I had to practice heal and toe down shifting where u rev the car up a tad bit before down shifting to avoid that rough jerk....i do it know without even thinking....

I just want to make sure i have the right idea in my head.
 
#10
No, don't floor it. You'll be on the limiter and the ass will be all over the place. You haven't said what kind of tires you are using either.

After you've staged, bring the car up to 3000 RPM or whatever you want to launch at. Do it just like you would if the car is in neutral, but have the car in gear with the clutch completely disengaged. When you're taking off; for as much clutch you let out, you should apply that much gas.

EXAMPLE......

Hold your hands next to eachother. Left hand is the clutch, right hand is gas (same as the car, except with hands). Pull your left hand up towards you. For the amount that you pull your left hand up towards you (engaging the clutch), your right hand should go away from you (pressing the gas pedal further).

If you do this too fast, you'll spin. If you do this too slow, you'll bog. It's all practice and timing.

Don't you feel like an idiot for playing with your hands like that in front of the computer? :D

Joe
 
#13
BlueOvalStangGT said:
NO, Gas isnt even close to the floor. But instead of most people feathering the gas, I feather the clutch. Its all about the right spot in the middle of bogging and breaking loose. I just read Joes post and thats pretty much what I do.
Click to expand...


But isn't what Joes post said mean to basically feather them both? Or id u lose traction do u just put the clutch in a tad bit? If so, how is putting the clutch back in better than letting off the gas a tad bit. Or is it just preference?
 
#14
nmcgrawj said:
But isn't what Joes post said mean to basically feather them both? Or id u lose traction do u just put the clutch in a tad bit? If so, how is putting the clutch back in better than letting off the gas a tad bit. Or is it just preference?
Click to expand...


It's all about feel. You are not going to fully understand it until you get a feel for what you are trying to accomplish.

When I launch, I have a distinct feel for what my tires are doing. If they are starting to spin, I'll get off the throttle a little bit while pushing in the cluth slightly. How much depends on how badly I spin, as well as clutch condition, track condition etc.

Now lets say I start to bog, I believe I give it more throttle and release the clutch a bit quicker to compensate.

I'm not positive of either of the above, as it happens so quickly, and without thought. My average 60's are low 1.8's with some dip's into the 1.7's (on nitto 275-40-17's)
 
#15
millhouse said:
It's all about feel. You are not going to fully understand it until you get a feel for what you are trying to accomplish.

When I launch, I have a distinct feel for what my tires are doing. If they are starting to spin, I'll get off the throttle a little bit while pushing in the cluth slightly. How much depends on how badly I spin, as well as clutch condition, track condition etc.

Now lets say I start to bog, I believe I give it more throttle and release the clutch a bit quicker to compensate.

I'm not positive of either of the above, as it happens so quickly, and without thought. My average 60's are low 1.8's with some dip's into the 1.7's (on nitto 275-40-17's)
Click to expand...


That's a good way to sum it up, it comes as second nature and isn't really "thought" about... its all about "feel" and it only comes with practice and seat time. I wish I could tell you more Nate but unfortunately I can't. It happens VERY quickly... all in a matter of under 2 seconds.
 
#16
nmcgrawj said:
But isn't what Joes post said mean to basically feather them both? Or id u lose traction do u just put the clutch in a tad bit? If so, how is putting the clutch back in better than letting off the gas a tad bit. Or is it just preference?
Click to expand...

Well if you feather the gas once you break loose, once the tires do catch again you will bog down horribly. When your feathering the clutch your revs are where you want em, when you want em.
 
#17
I always thought of launching as keeping the revs as close to my peak TRQ curve as possible without spinning the tires. When I launch via the feather method, I rev it to 3100-3200 and try to keep the needle buried there. I guess coming from an engineering background I'm very concerned with numbers, and I probably rely on my tach as much if not more then SOTP. Obviously some variation occurs but you really want to max out on trq, which is gets the weight moving. Make sense to anyone else?

Adam
 
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