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Old 03-09-2004, 09:11 PM   #1
hatman
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Default How to properly launch?

Hi guys,

I have tried the Search button but really didn't find what I was looking for. I am a pretty big newbie on launching my car, I really have no idea on how to do a proper launch (I have a 04 WRX). Was wondering if anybody can fill me in on how to do a good launch.


Thanks!
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Old 03-09-2004, 09:12 PM   #2
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rev to 4k, slip out clutch quickly (no dumping) and press on accelerator.
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Old 03-09-2004, 09:16 PM   #3
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Old 03-09-2004, 09:17 PM   #4
hatman
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Quote:
Originally posted by cdvma
rev to 4k, slip out clutch quickly (no dumping) and press on accelerator.
Is 4k really the safe RPM level to be at, and about when do you throw it to 2nd gear? Also my foot already be half-way off the clutch at this point correct?
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Old 03-09-2004, 09:17 PM   #5
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Quote:
Originally posted by Spoolin16PSI
How about you do a search before posting useless remarks, I have done a search and found nothing that answers my question.
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Old 03-09-2004, 09:40 PM   #6
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I cant seem to find a good search term for results either. Maybee someone should put a good info thread in the FAQ/Threads of note post.

Is it "safe"? I dunno, depends on what you call safe. For an effective launch you cant be much lower. Your clutch foot should be on the floor, then you rev to 4k, then let your foot out quickly and simultaniously hit the gas. If your car is stock, shift into second around redline and then each gear after that do it at about 6500 as you aren't making any power beyond that.
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Old 03-09-2004, 09:46 PM   #7
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Quote:
Originally posted by cdvma
I cant seem to find a good search term for results either. Maybee someone should put a good info thread in the FAQ/Threads of note post.

Is it "safe"? I dunno, depends on what you call safe. For an effective launch you cant be much lower. Your clutch foot should be on the floor, then you rev to 4k, then let your foot out quickly and simultaniously hit the gas. If your car is stock, shift into second around redline and then each gear after that do it at about 6500 as you aren't making any power beyond that.
Problem with that is if you REV to 4k and then let go of the clutch won't your car just stall. I mean how fast do you let go of the clutch.
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Old 03-09-2004, 09:48 PM   #8
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http://forums.nasioc.com/forums/foru...?s=&forumid=79
...try searching here, their's plenty of luanching lunies who fequent this spot.
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Old 03-09-2004, 09:58 PM   #9
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Old 03-09-2004, 10:04 PM   #10
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Quote:
Originally posted by Loser
http://www.WRXFanatics.com/index.php...opic=11335&hl=
Link doesn't work.
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Old 03-09-2004, 10:30 PM   #11
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Taken from somewhere else:

Quote:
azscoobie gave me the advice on launching my car...if u dont know him...his wrx has a type ra engine in it ...lays down close to 370 or so to the wheels and is a very well known tuner.
the launch technique i have found has worked better for me than any other method.
basically...hold the rpms at 3k and let out the clutch just until it touches...not moving of course. then on the second amber...floor it...leaving the clutch alone. stare at the tach and when it hits 5500k let the clutch out. not too fast...but not slow either. just a smooth movement off of the clutch. if u do it right...u should get a little wheel spin and NO bog. done right...reaction time should be perfect and then those low 60' times will be attainable.
Kinda generic for turbo subarus but seems about right. This method will allow some boost to build at the line and should launch pretty hard. I've tried this alot and it's really hard to nail it...

Good Luck!
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Old 03-09-2004, 10:33 PM   #12
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Quote:
hold the rpms at 3k and let out the clutch just until it touches...not moving of course
Let out the clutch until it touches what?

Quote:
second amber
What does this mean?
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Old 03-09-2004, 10:36 PM   #13
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Quote:
Originally posted by hatman
Let out the clutch until it touches what?



What does this mean?
touches the flywheel. Just beofre engagement.


Second amber on the x-mas tree at the drags.
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Old 03-09-2004, 10:36 PM   #14
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Quote:
Originally posted by hatman
Let out the clutch until it touches what?



What does this mean?
he means to right where it will begin to grab, you know "THAT" point

i've never tried to launch mine, i like having a working clutch/tranny
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Old 03-09-2004, 10:36 PM   #15
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Quote:
Originally posted by Dans-REX
touches the flywheel. Just beofre engagement.


Second amber on the x-mas tree at the drags.
I said I was a newbie, can you explain a bit more please?
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Old 03-09-2004, 10:41 PM   #16
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Quote:
Originally posted by hatman
Let out the clutch until it touches what?


Get all the dead travel outta the clucth pedal. Release to right before the spot where it will begin to grab.

Quote:
What does this mean?
The Tree
A drag race is started using a device called a "Christmas Tree" that stands 42 feet ahead of the start line. As the vehicles approach the starting line the drivers are signaled to stage their vehicles and start the race by watching the colored bulbs light up in sequence.

Each side of the "tree" has two small yellow bulbs at the top that signals a driver when the vehicle is on the start line. The first bulb lights when the vehicle is almost on the line, "pre-staged", followed by the next bulb lighting as the vehicle moves forward to "staged" position on the line.

The "tree" has three larger amber colored bulbs on each side followed by a green bulb and then a red bulb. Once both vehicles are staged, the "tree" is activated and the first amber colored bulbs on both sides of the tree light up. Then second later the next amber bulb lights up while the first amber bulb goes out. Another second later the last amber bulb lights up. And one-half second later the green bulb lights up signaling the drivers to start the race. If either vehicle leaves the start line before the green bulb lights up, the red bulb will light up instead. This indicates a foul start for that vehicle thereby giving the other driver an automatic win.

While both vehicles may leave together on the green light, a driver's reaction time from when the green comes on will become a factor in the race. If one vehicle remains on the starting line after the green comes on, the other vehicle will gain an advantage making it possible for the slower vehicle to win the race.

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Old 03-09-2004, 10:46 PM   #17
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So in an essense, my foot should be on the sweet spot until the green light is given right?
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Old 03-09-2004, 10:51 PM   #18
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Negative. Re-read. We Subaru, We CHEAT ^_^;

edit: thought I should elaborate. re-read my original post. After the 2nd amber lights forget about the tree, concentrate on your tach. You should be watching your tach scream to redline...right at ~5500 let the clutch out fairly fast. rpms drop, the car chirps, then GRABS, next thing you know your tach is screaming towards redline again, SHIFT! .... uggg the horror ...
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Old 03-09-2004, 10:54 PM   #19
hatman
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Quote:
Originally posted by industrial
Negative. Re-read. We Subaru, We CHEAT ^_^;
I see what you mean, but im just worried that I will take my foot off the clutch too fast at 5k and my car will bog big time. How slow do you really have to take it off, I mean it has to be defenitly faster then normal driving I suppose when you take your foot off the clutch slowly at 1.5k rpm.
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Old 03-09-2004, 10:58 PM   #20
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Its really hard to put in words...it's fairly close to a complete drop but I'd hate for you to gernade 1st gear. I would say drop the clutch as fast as possible without dumping? idk idk Go out and try it out, that's the best way to learn the feel of launching now that you have some idea of what you should expect.
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Old 03-09-2004, 11:01 PM   #21
hatman
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Quote:
Originally posted by industrial
Its really hard to put in words...it's fairly close to a complete drop but I'd hate for you to gernade 1st gear. I would say drop the clutch as fast as possible without dumping? idk idk Go out and try it out, that's the best way to learn the feel of launching now that you have some idea of what you should expect.
Would you ease off on the clutch in the beginning a little then drop it, or drop it and pick it up in mid-air in the end and gently put it down?

Btw,thanks for all your help!
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Old 03-09-2004, 11:04 PM   #22
industrial
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Quote:
Originally posted by hatman
Would you ease off on the clutch in the beginning a little then drop it, or drop it and pick it up in mid-air in the end and gently put it down?

Btw,thanks for all your help!
Easing off in the beginning is just subaru glass tranny habit. Depends on what you have done to your car and what tires your running mostly. I'm at a "stage 4" level so with stock tires I get some wheel spin...I've learned to just let it go fast in controlled manner...sorry I can't say it better than that. Let it go too slow and you will smoke your clutch, to fast and you'll shock your tranny and bog.
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Old 03-09-2004, 11:14 PM   #23
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Quote:
Originally posted by industrial
Easing off in the beginning is just subaru glass tranny habit. Depends on what you have done to your car and what tires your running mostly. I'm at a "stage 4" level so with stock tires I get some wheel spin...I've learned to just let it go fast in controlled manner...sorry I can't say it better than that. Let it go too slow and you will smoke your clutch, to fast and you'll shock your tranny and bog.
Alright thanks.
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Old 03-09-2004, 11:16 PM   #24
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Just had an question pop up, what allows you to be able to drop your clutch faster at 5k rpm though, I mean I know when you drop it at 1.5 it will just stall, so the higher rpm they faster you can drop your clutch?
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Old 03-09-2004, 11:32 PM   #25
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How fast do you come off the clutch? I had someone describe it to me as " pretend you just stepped on a tack." SO basically your pulling your foot of almost as fast as you can without side stepping the clutch. DOnt yank your leg off so your knee hits you in the head , but a quick controlled pull. Youll know if you got it right because you wont bog or smell fried clutch. Youll also find any launch north of 5k with the hammer down will be very tough to bog the motor...but if your too fast youll wont allow the clutch to take any of the abuse off the tranny.

Eli
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