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Old 06-27-2005, 07:40 PM   #1
hwy61
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Default Best way to launch AWD WRX and STI

OK, I must have read it a 100 times, "dude doesn't know how to launch an awd car". Seems to be the solution that makes it's way into half the problems discussed at this Forum.

I'm at a stoplight, er, racetrack, dude to the left is in a white STI, dude to his left in a 911, dude on the right, new Corvette, dude on his right Neon SRT modded up, dude to his right WRX very modded up, dude behind us in a Viper, modded of course and on the far left some kind of $280,000 Ferrari. Finish line 1/8 mile away.

I'm in my black, stock STI. Ice water in the spray bottle and in my veins. Pink slips on the line for the slowest four. How do I launch. Hwy61
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Last edited by hwy61; 06-28-2005 at 12:17 AM.
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Old 06-27-2005, 07:47 PM   #2
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what where your 60 sec times? This is how I launch...rever to 5-5,500 hold it there second to last light let off the gas let the clutch out slipping it as i stomp on the gas. So its like hold gas, off gas, clutch out at the same time you floor it all realllll fast.
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Old 06-27-2005, 07:48 PM   #3
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ooooops, wrong racetrack, thought I was in the General section. Sorry Unabomber. hwy61
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Old 06-27-2005, 07:48 PM   #4
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Quote:
Originally Posted by hwy61
OK, I must have read it a 100 times, "dude doesn't know how to launch an awd car". Seems to be the solution that makes it's way into half the problems discussed at this Forum.

I,m at a stoplight, er, racetrack, dude to the left is in a white STI, dude to his left in a 911, dude on the right, new Corvette, dude on his right Neon SRT modded up, dude to his right WRX very modded up, dude behind us in a Viper, modded of course and on the far left some kind of $280,000 Ferrari. Finish line 1/8 mile away.

I'm in my black, stock STI. Ice water in the spray bottle and in my veins. Pink slips on the line for the slowest four. How do I launch. Hwy61
Just get out and hand over your keys..
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Old 06-27-2005, 07:53 PM   #5
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^^^ LOL actually just get er to 6k man and doa very quick slip drop and you should be ok. You still got one of the fastest 0-60 times out of the bunch. so drive GREAT CAUSE IF NOT well.... you wont have a car...
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Old 06-27-2005, 08:02 PM   #6
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your OK, the vette, viper, and 911's dont know how to launch either. Just do as mentioned above.....but if you panic, floor the gas and slip the clutch.

Ive held off many vettes and 911s with my skills.
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Old 06-27-2005, 08:11 PM   #7
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Oh, I'll drive great half the races I have the other drivers do one of three things. Go up in smoke with a big V8, bog with the small turbo engine or and the most common, hit the rev limiter because they aren't payin attention. That one will guarantee a loss. That's why God put a tachometer front and center. hwy61

Last edited by hwy61; 06-28-2005 at 12:15 AM.
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Old 06-27-2005, 09:34 PM   #8
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Quote:
Originally Posted by hwy61
ooooops, wrong racetrack, thought I was in the General section. Sorry Unabomber. hwy61
Hurray for realizing your posted in the wrong spot! You'd probably get your best answers in the power proven forum, so I'll move it there.
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Old 06-27-2005, 09:48 PM   #9
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let it hit the rev limiter then drop it Thats why i have good 1/4mile times and 60ft
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Old 06-28-2005, 03:22 AM   #10
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Just ask the guy whos says he's pullin a 1.2 60ft from a lighty modded STI
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Old 06-28-2005, 04:36 AM   #11
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yea man I bet He`ll get down To .78 60`ft with his new Turbo I think at one time he tried tellin me i was stupid LoL hahah WoW

What I do when I launch my car is Pulse Rev like between 4300-5600 and try to catch it on the up swing and step of clutch at 5500 and go WOT... i get like mid 1.8 So i guess I suk I need lessons for 1Fastsubi!!
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Old 06-28-2005, 09:12 AM   #12
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The last time I was reading launching techniques, here the one that sounded the best to me. Rev up to about 3k and what for the next to last light (not sure how to do this on the street). Then floor it and take quickly pull your foot straight up off the clutch at about 5500 to 6000 RPMS (no side stepping and don't come up faster than the pedal can follow). If you do that right, the time it takes to build the extra 3k RPMS should be the length of the last light so you will get a good reaction time. This also stops you from holding high revs too long to start the race.

offset
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Old 06-28-2005, 12:19 PM   #13
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Quote:
Originally Posted by offset
The last time I was reading launching techniques, here the one that sounded the best to me. Rev up to about 3k and what for the next to last light (not sure how to do this on the street). Then floor it and take quickly pull your foot straight up off the clutch at about 5500 to 6000 RPMS (no side stepping and don't come up faster than the pedal can follow). If you do that right, the time it takes to build the extra 3k RPMS should be the length of the last light so you will get a good reaction time. This also stops you from holding high revs too long to start the race.

offset
huh??

Can you explain what you mean by the following??

"what for the next to last light"

"Then floor it and take quickly pull your foot straight up off the clutch"

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Old 06-28-2005, 12:25 PM   #14
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The next to last light on the christmas tree, not the stoplight! :doh:
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Old 06-28-2005, 12:29 PM   #15
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Quote:
Originally Posted by Unabomber
Hurray for realizing your posted in the wrong spot! You'd probably get your best answers in the power proven forum, so I'll move it there.

???45

Quote:
Big power, big egos... Report and discuss your 1/4 mile, Dyno and other achievements here.
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Old 06-28-2005, 04:17 PM   #16
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the high rev blip to fast slip, on the going up of the revvs is the best way, i've beaten 2 stage 2 srt4s, an evo, and a new gto w/ just a boost controller with this method in my wrx......
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Old 06-28-2005, 11:39 PM   #17
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Quote:
Originally Posted by Drews_WRX
your OK, the vette, viper, and 911's dont know how to launch either. Just do as mentioned above.....but if you panic, floor the gas and slip the clutch.

Ive held off many vettes and 911s with my skills.

haha . that's true.
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Old 06-28-2005, 11:49 PM   #18
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Here's what I found to be the best way to launch at the autocross, I bounce the rev's between 4 and 5 maybe 5.5 quickly...rev rev rev rev rev then time the gas going down with the clutch coming up.

Hooks pretty hard, I've spun all four running race rubber.

I have a few vids if anyone wants to hear what I'm talking about.
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Old 06-29-2005, 12:33 AM   #19
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I can see you've never really raced for pinks. If your car was really stock, it would be the only one and you'd be facing at least three 9 - 10 sec cars. They wouldn't go up in smoke, either. They'd all cheat, too. I've known a few serious "professional" street racers. The extremes they will go to, to make you think their car is slower than it really is, are incredible. I wouldn't race one of them if they were driving a Yugo.
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Old 06-29-2005, 01:48 AM   #20
hwy61
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In over 40 years I've never raced with a christmas tree for a start light, hum, never thought about that before. I race for pink slips all the time, that's how I get rid of all my old cars.

In my WRX at solo events I've done the following. relax, take up slack in the drivetrain, rev to 4,000, next time 5,000 even some 6,000 - 6.500 RPM launches with just enough delay to take all the slack out before dumpin the clutch and flooring it at same time.. The WRX launches rather smoothly this way and only spins the tires 6 to 10 feet depending on the RPM of the launch. No clutch trouble was ever noted. Many drivers bog their launch in 4 cyl cars of all types. RX8's are the worst.

For the STI with wide, sticky tires I have launched by taking the slack out, reving to 4,000, dumping the clutch while flooring it, and it bogged somewhat, no wheel spin. Launched same method at 5,000, no noticeable wheel spin but a little bog. Launched at 6,500 rpm and all hell broke loose. No bog, no wheel spin, one huge leap, the car hopping and jumping but haulin ass. Did that twice, too rough, something would break soon.

But I'm listening too all this advice on how to properly launch an awd car since most dudes don't have a clue according to a hundred posts. Keep em coming. Actually with pink slips on the line I'd launch at 7,500 RPM and hope it didn't break or I'd be walking home along with the white STI owner, SRT owner, 911 owner. Viper, ferarri and heavy modded WRX will all fly. Some of the new vettes will also, the new one reaches 60 in first gear. I've raced em all but the Viper, I just leave them alone and they ignore me. hwy61
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Old 06-29-2005, 05:19 AM   #21
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i don't think I can evar race for pinks =(
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Old 06-29-2005, 01:23 PM   #22
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A former "pro" street racer I know used to race the streets of Detroit for cash and prizes. He drove a late 80s Mustang, into which he told everyone he had swapped a 351 Windsor engine. It was really a pro stock 515ci crate motor. But, he had custom valve covers that looked like stock Windsors, a gutted AC compressor that was basically an idler pulley, and all sorts of other camouflaged parts. NOx was fed through what looked like a fuel line to the carburetor secondaries. Tires were super soft rubber compound, with siped grooves. Tons of suspension and other mods, plus he never ran faster than he had to. He only lost once. He quit when that happened and opened an engine building shop.

He told me the guy who beat him actually had a crank made with a 5/8" shorter stroke on the first two cylinders, than on the other 6. (If someone wanted to check displacement, they always check the front cylinders). He said when he saw that he knew it was time to quit.
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Old 06-29-2005, 03:58 PM   #23
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Quote:
Originally Posted by offset
The last time I was reading launching techniques, here the one that sounded the best to me. Rev up to about 3k and what for the next to last light (not sure how to do this on the street). Then floor it and take quickly pull your foot straight up off the clutch at about 5500 to 6000 RPMS (no side stepping and don't come up faster than the pedal can follow). If you do that right, the time it takes to build the extra 3k RPMS should be the length of the last light so you will get a good reaction time. This also stops you from holding high revs too long to start the race.

offset
This is what I do and I spin all four tires (yeah, they are sort of bald). I think that the reason for holding at 3,000 and flooring it to 5,500 is that boost builds for that brief moment as the RPM's climb. Launching on boost is, obviously, better as you are making more power.

While holding at 5,500 rpm, you are in vaccuum.
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Old 06-29-2005, 04:16 PM   #24
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Quote:
Originally Posted by offset
The last time I was reading launching techniques, here the one that sounded the best to me. Rev up to about 3k and what for the next to last light (not sure how to do this on the street). Then floor it and take quickly pull your foot straight up off the clutch at about 5500 to 6000 RPMS (no side stepping and don't come up faster than the pedal can follow). If you do that right, the time it takes to build the extra 3k RPMS should be the length of the last light so you will get a good reaction time. This also stops you from holding high revs too long to start the race.

offset
This is close to what I do, but instead of holding at 3K till the next to last light, I floor the gas from idle at the first light. When I come off the clutch on the last yellow light, I get low .5xx reactions on a .500 tree and get mid 1.8 60' times. RPM's at launch are between 5K and 5500. Too bad I don't have much power after that.
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Old 06-29-2005, 05:25 PM   #25
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I don't know if this works with Subaru's rather complicated ECU, but when racing DSM turbos in the 90s, an electronic stutter box was used to hold boost during high rpm launches. I ran against several guys launching at 17psi, while I was lucky to catch 5 - 7psi, without one. I switched after that happened a few times.
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