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Old 04-19-2010, 09:07 PM   #1
cibon7
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Default First time doin the 1/4 mile

Hey guys Im going to the drap stip tommorow night for the first time.
Any advice? starting specifically. should be doing around 6 runs

my car il be running.
keep in mind its a DD and i need to make it home from St. Louis to Chicao in a few wks

03 WRX
-full turbo back exhaust
-STI tmic
-cobb access port 93 tune
-short ram intake
-competition stage 2 clutch
-subaru short throw
-Stance gr+ coilovers
-Enkei rpf1(18x8) with falken azenis rt-615s
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Old 04-19-2010, 09:16 PM   #2
The Cheshire Cat
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Don't smoke your clutch, or bomb the hell out of your tranny specifically in the launches. Other than that, keep it straight and have fun.
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Old 04-19-2010, 09:26 PM   #3
ftnjun2x
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I usually launch mine at around 5-5500 RPM. We pretty much have the same set up, post your time after the race.
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Old 04-19-2010, 09:29 PM   #4
cash1220
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the best advice i received for launching is to push the clutch in just a bit so you arent moving and rev to about 2500rpm. when you are ready to go floor it and around 5500rpm slowly let the clutch out. good luck!
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Old 04-19-2010, 09:29 PM   #5
cibon7
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im obviously not goin to drop the clutch because of the fragile trans and i dont wana burn my clutch up because its fairly new but well broken in.

any suggestions on starting at lower rpms?
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Old 04-19-2010, 09:33 PM   #6
Ash_J
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Careful not to wreck your trans; launch softly, don't try to rush the shifts, and have fun!
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Old 04-19-2010, 09:41 PM   #7
The Cheshire Cat
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Quote:
Originally Posted by cibon7 View Post
im obviously not goin to drop the clutch because of the fragile trans and i dont wana burn my clutch up because its fairly new but well broken in.

any suggestions on starting at lower rpms?
Like other people have said, keep it low for the first stage, wind up to a good (but not too high RPM) for second stage and slip the clutch out while trying not to let your RPM's drop too low.
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Old 04-19-2010, 10:25 PM   #8
cibon7
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i kinda tryed that in an industrial area today and when i let the clutch go it bogged down and it felt like it lagged terribly
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Old 04-19-2010, 10:47 PM   #9
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Quote:
Originally Posted by cibon7 View Post
i kinda tryed that in an industrial area today and when i let the clutch go it bogged down and it felt like it lagged terribly
its cause you were in an industrial area...should have been doing it down some side street with children playing in the street.

lol jk. good luck man, post times aft!
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Old 04-19-2010, 10:51 PM   #10
WhiteTurbo13
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Its not an rsx, dont drop the clutch!!! feather it out...Have fun mann
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Old 04-19-2010, 11:11 PM   #11
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1. rev engine to redline
2. drop the clutch
3. hold on & enjoy!
...
4. start wtb 6-speed/ppg thread... lol


Its the question of what you wonna do, have fun or post the best time? Launch gently, shift gently (quite hard to shift smooth but fast). Your main goal to post the best times will be to learn your perfect shift points and shift at them (they will be before redline with your stock turbo).


Had BNR32 and was launching it at 5000-7000rpm (8500 redline) by just dropping the clutch, the way AWD car should be launched imho. Clutch was gone on the second run after switching from street tires to MT ET Street Radials. 450hp @ crank. That was a sweet time...
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Old 04-20-2010, 11:57 AM   #12
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Quote:
Originally Posted by cibon7 View Post
Hey guys Im going to the drap stip tommorow night for the first time.
Any advice? starting specifically. should be doing around 6 runs

my car il be running.
keep in mind its a DD and i need to make it home from St. Louis to Chicago in a few wks

03 WRX
-full turbo back exhaust
-STI tmic
-cobb access port 93 tune
-short ram intake
-competition stage 2 clutch
-subaru short throw
-Stance gr+ coilovers
-Enkei rpf1(18x8) with falken azenis rt-615s
don't take it to the strip. i'm not joking. i don't know how to launch either and i wouldn't dare do it with my DD.
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Old 04-20-2010, 02:29 PM   #13
sagvr4
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dont worry about the tree at all. the timers start when you pass them not when it goes green. also, running the shifter 1-2-3-2-1 a couple times can help smooth things out when you go to shift quickly.
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Old 04-20-2010, 02:56 PM   #14
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Quote:
Originally Posted by cash1220 View Post
the best advice i received for launching is to push the clutch in just a bit so you arent moving and rev to about 2500rpm. when you are ready to go floor it and around 5500rpm slowly let the clutch out. good luck!

Please don't ever give advice about launching again. Thank you.








OP- I'm assuming you don't have launch control.


First, before you go you need to find a nice quiet road and find the catch-point of your clutch. The catch-point is the point where the clutch starts to engage. Finding your catch point and knowing how to hold the clutch JUST below it will take the slack out of your drivetrain and allow for a smoother, more precise, and safer launch.

Blip the throttle around 5k-5500. Blipping it allows you to build a bit of boost (or less vacuum) as opposed to holding it at a certain RPM. As you're blipping the throttle, get your clutch to JUST below the catch point.

Don't worry about the green light, as the clock doesn't start until you move. In fact, I suggest waiting and letting the guy next to you be good and gone so you can concentrate, you'll already be nervous just being there.

On an upswing of the RPMs, pull your foot quickly (but not abruptly) up off the clutch as you pretty much put your right foot to the floor. If it's timed right (it will take some practice) you will get just a smidge of tire-spin, and the launch will be smooth and fluid, with virtually no bog and only a tiny bit of clutch slippage.

Do NOT ride the clutch, or you'll be smelling it for hours and hating yourself. At the same time, you're not dumping the clutch. If you've taken the slack out of the drivetrain by finding your catch point, and you get just a tiny bit of wheelspin, you're taking stress off both the transmission AND the clutch, and at the same time getting a solid 60ft time.

If it's done right, be ready to grab 2nd because it will come up quick. Be smooth with the clutch going into 2nd, a tiny bit of clutch slip there will still allow for a very quick run, but won't DROP the torque on the gear. It's shockload that breaks gears, so the smoother you can be about letting out of the clutch and getting into power in 2nd, the better. I wouldn't worry too much about 3rd gear.


As for shift points, on your setup I'd say
1st-7200
2nd-7k~ish
3rd- 6500-6800

And you won't have to worry about 4th-5th



With wheels and tires of that size, you're going to have a tough time getting the perfect launch with the power you've got.

But with a Cobb OTS map and that setup, if you break 13.5 I'd call it a day, as that's about as good as it's gonna get.

Breaking 13s at all on that setup with this being your first time would be considered a good day in my book




Good luck!

And have info and cash for a tow truck JUUUUUST in case
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Old 04-20-2010, 03:26 PM   #15
SBW
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fear the 1-2 shift, if you do it wrong, you'll grenade second gear.

I would ride 1st on the limiter for just a second at times before going into 2nd with the RA gears. I had plenty of passes on my 5sp at the strip. I got through track days by riding the clutch enough to get out of the hole but not completely sidestep the clutch.

Add some air to your tires too, this is key to getting some wheelspin.
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Old 04-20-2010, 03:44 PM   #16
Xawn
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Dude... you're gona' put down a FAST.3 seconds at ZOMGmph.
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Old 04-20-2010, 03:49 PM   #17
crash60068
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are you goin to gateway. cuz i drve from st.l to chicago all the time.
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Old 04-21-2010, 11:46 AM   #18
Alibaba6.0
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do everthing except launching it unless you chage the tranny, from what i heard the tranny is weak on the bugeyes
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Old 04-21-2010, 12:21 PM   #19
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Quote:
Originally Posted by Alibaba6.0 View Post
do everthing except launching it unless you chage the tranny, from what i heard the tranny is weak on the bugeyes

Thousands of us have hundreds of launches and 1/4 mile passes on the stock transmission. Funny thing is, very few of the failures EVER came from launching, most came from the shockload going into 2nd gear.

If he's going to the track and doesn't launch the car, there is zero point in going to the track
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Old 04-21-2010, 12:23 PM   #20
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I've only done drags a few times....never with a Subaru. My rule, if I go again. Bring a car trailer.
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Old 04-21-2010, 12:24 PM   #21
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Quote:
Originally Posted by cibon7 View Post
Hey guys Im going to the drap stip tommorow night for the first time.
Any advice? starting specifically. should be doing around 6 runs

my car il be running.
keep in mind its a DD and i need to make it home from St. Louis to Chicao in a few wks

03 WRX
-full turbo back exhaust
-STI tmic
-cobb access port 93 tune
-short ram intake
-competition stage 2 clutch
-subaru short throw
-Stance gr+ coilovers
-Enkei rpf1(18x8) with falken azenis rt-615s

you should not go to the track with your DD, that is a horrible idea.
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Old 04-21-2010, 12:32 PM   #22
Heider
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marked. thanks for the info audiosavvy.
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Old 04-21-2010, 12:38 PM   #23
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I recommend doing this in the dirt first, to practice finding your catch point and timing the launch.

Then find a wet or dirty road and practice a few more times.

Then find a clean, smooth road.

Then, if you still have a transmission, take it to the track



Just remember, if you EVER, and I mean EVER get wheel-hop, get out of the throttle. And there's no need to ask what wheelhop is, when you get it you WILL know, it will be violent
It shouldn't be an issue at the track with that power and the grip, but you may get it on the street and especially on a wet road, where it's easier to really break loose.
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Old 04-21-2010, 02:51 PM   #24
toneekay
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I've been running my car at the track for almost 2 years or so now with no launch control; I've gotten quite well at slipping the clutch heh. My advice to you, since this is your first time, make that first run down the track with no launching/or if you'd like, a very soft launch. Launch rpm can be different from car to car, and this is what you'll need to know before actually "launching" the car. Get familiar with shifting quickly on your first run; get to know your shift points (this'll help eliminate tranny/diff shock). Once you've gotten familiar with shifting, the only thing you have to worry about next is the actual "launch."

The easiest way, imo, to know you're launching correctly (or on the right path) is to keep your foot on the gas at your launching rpm (ex: 4500rpm). When it's time to GO, keep your gas foot there and steady, ease off of the clutch and once you feel the initial pull of the car, that's when you put more gas into it and take your foot completely off the clutch. I don't know if I explained it right, but it seems to work pretty damn well for me... no burning clutch, no tranny shock, no nothing... just you, the car, and the track.

Your tranny won't blow up right away (unless you're being a complete ratard), so try out a couple rpm ranges to first get that "initial pull," and once you've achieved that, then you're on the right path into getting the car off the line and making those quick 60ft times! Good luck and have funnn!
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