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Old 07-06-2002, 01:23 AM   #1
Drews_WRX
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Last edited by Drews_WRX; 09-05-2002 at 04:07 PM.
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Old 07-06-2002, 12:10 PM   #2
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Well, let's see... I brake-torque it to my stall speed of about 4100rpm and then just launch. Best of 1.839 last night, should hit 1.7xx at lower altitudes.

Oh wait... I'm an automatic.

Padre
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Old 07-06-2002, 06:54 PM   #3
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What I do is bring the RPM's up to about 5 grand, the light come down and I let out the clutch about 1/2 way and then as I press the accelerator to the floor, I'm releasing the clutch the rest of the way. Very tricky to do. It will take some practice, and you will be smelling that clutch! Good luck.
John
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Old 07-06-2002, 08:00 PM   #4
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Default Re: How U launchin to get 1.8 sec 60 ft?

Quote:
Originally posted by Drews_WRX
Just wanted to know how a few of you were launchin to get 1.8 60 ft times, because I have just been f*ckin around with my launch for a couple days and was curious to if I was even close to 1.8 60's. Havent been to a track yet so I dont know what 1.8 feels like.....post away.

drew
Drew. Do a search. I have explained how I get 1.7 flats many times.

CT
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Old 07-07-2002, 11:34 AM   #5
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Drew,

It really depends on your modifications. In a "stage 1 or 2," I would hold the rpms around 35-4K and floor it as I quickly slipped the clutch out. This would generally get me in the low 1.8s.

In "stage 4" trim, I hold the rpms to around 35K and floor it for a solid second before I quickely released the clutch. This would spin the tires, spooling the turbo into it's sweet spot. I generally get 1.6s all day long.

I like about 33psi in the tires at my track but if you find yourself "hooking" put more air in to spin the tires some.

Everytime we change combinations with the car, I have to learn a new launch technique so keep this in mind when taking advice.

Good luck!

Phil
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Old 07-08-2002, 07:48 AM   #6
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I've forgotten how to get a 1.8x 60' ft time, but to get a 1.7's with a stock turbo just launch around 5000RPM and let the clutch out at a rate where the RPM's don't drop off leaving the line while at the same time quickly flooring it.

You want a slight amount of clutch slip with even a very slight amount of wheel spin (though I don't put down enough power to make that happen too much.)

Phil... I'm sorry to hear that you remember how to pull a 1.8x (kidding.)

-Jonathan
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Old 07-11-2002, 09:42 AM   #7
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What mods you got mynew02? Good looking times.
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Old 07-11-2002, 09:43 PM   #8
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How much does the vehicle weight have to do with 60' times? I have about an extra 150 pounds of stereo and I can't seem to get faster then 1.92 60' times after about say 15 or so runs. I've tried a variety of launch methods from 6500 to 4000 rpm clutch drops/slips... It's starting to feel like a broken record

Thomas
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Old 07-11-2002, 10:17 PM   #9
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Quote:
Originally posted by PsycloneWRX
How much does the vehicle weight have to do with 60' times? I have about an extra 150 pounds of stereo and I can't seem to get faster then 1.92 60' times after about say 15 or so runs. I've tried a variety of launch methods from 6500 to 4000 rpm clutch drops/slips... It's starting to feel like a broken record

Thomas
Yes. It does matter. But keep practicing. I try to weigh my car each time I go to the track. My car is 3060-3080 on the scale at my track and with me and all my crap/gas you can add about 260lbs to that. I pulled 1.7's 9 times in a row one night. I have not been to the track since the latest round of mods. Its to hot in Arizona to drag even at 12 midight its 100+. Keep in mind that power has alot to do with this as well. I dont know your mods but it is something to think about.

Keep practicing man... Find out what others do on your track.. Tracks are different.

CT
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Old 07-12-2002, 02:58 AM   #10
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Well I have VS0 + TB, vf30 and injectors. My 60' times haven't changed since the VS0 runs, all have been about 1.9s.

Thomas
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Old 07-12-2002, 11:38 AM   #11
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Quote:
Originally posted by PsycloneWRX
Well I have VS0 + TB, vf30 and injectors. My 60' times haven't changed since the VS0 runs, all have been about 1.9s.

Thomas

Thomas.. What about wheels/tires?

With that turbo/injectors and shiv's tuning you should have the power. It might be a combination of your skill and your track that is not getting the times you expect. Its not easy to get those sixty's. Some guys have it. Some guys dont. I dont so I have to practice But, Once I got out and practice and try other things I figure it out. You might be in the same boat as I am.. I got the 1.7's.. It just took me 15 passes to do it

CT
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Old 07-12-2002, 07:47 PM   #12
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Stock wheels and tires, I don't know... I launch exactly the same way as most of the people pulling 1.7's but I still don't seem to get it. I haven't seen any WRXs do that great out at my track though.
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Old 07-12-2002, 08:34 PM   #13
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Quote:
Originally posted by PsycloneWRX
Stock wheels and tires, I don't know... I launch exactly the same way as most of the people pulling 1.7's but I still don't seem to get it. I haven't seen any WRXs do that great out at my track though.

Try. try again man... Thats all I can say. I have explained what I do many times. But once again.. Hold at 3000 rpm. Second yellow comes on I floor it... When I see 5000 rpm I let my foot straight up off the clutch. I dont dump it. I dont slam it out. I dont slip it. I just pull my leg up. Keep your right foot planted on the gas... You should get NO clutch slip.. If you do you are not hard enough or fast enough on the clutch. You should get front wheel spin and then some rear spin... This will net 1.7's in my car when I had the VF22 on everytime. I have about 100 passes on the stock clutch and I have never had it slip launching this way. So far, Nothing driveline wise has broke.. Fingers crossed

CT
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Old 07-13-2002, 08:07 AM   #14
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AZScoobie,

You mentioned that your stock clutch it fine (awesome!) - but how about the rest of your drivetrain?

I've only got 6 passes at the local 1/4 mile track under my belt and I swear that the car doesn't go into 3rd gear like it used to... Sigh, am I an automotive hypochondriac or what?
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Old 07-13-2002, 06:48 PM   #15
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Quote:
Originally posted by Drews_WRX
AZScoobie, you did 1.7x with a stock car? I think thats almost impossible. I went to the track today and went about 12 passes trying different rpms, cluth slips etc....nothin better than 2.01.....i even tried you mention about 6 times.

drew
No. I ran 1.8's with a stock car. 1.7s with round two of my upgrades. Now I am lower then 1.7. Yes. Power makes your sixty's drop but a bone stock car will go lower then 2.0 which is in line with Front wheel drive cars. Keep trying!

CT
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Old 07-13-2002, 09:48 PM   #16
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There was a local guy here that did 14.2 in a pretty much stock WRX. Stock being he has a straight pipe instead of a muffler (catback only). 1.72 60' time I believe. I went to the track for the first time ever today and usually managed around 2.09. With a 2.09, my best run was 14.1 @99.3mph. I have no doubt with a decent launch the car would be in the mid 13s. If you have like 18" heavier wheels on the car I think the 60' would be affected by quite a bit. I'm using 17" wheels (SSR Comps) and I think with the stock 16" ones you could get off the line faster.
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Old 07-14-2002, 08:37 AM   #17
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i hit a 1.86 at pueblo colorado a few months back in my nitrous 2.5....with a full interior and half a tank of fuel. i do have a exedy clutch but i just run it up to 6 grand and kinda side step it its kinda hard to explain but no one beats me off the line here at 6,000 feet elevation larry ganz has ridden in my car,all he said was wow! thats impressive! when that n2o hit at the launch.it comes of the line with tire smoke...i figure i could hit a 1.6 at sea level with slick tires and gutted. i say a good launch takes alot of practice and patience you drop it to hard itll bog to soft and kiss your clutch good bye! have fun!
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Old 07-14-2002, 10:20 PM   #18
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QKSilverRS does get a nice launch with ZEX 75 shot, and the trick is breaking the tires loose and letting the engine rev strong in the powerband as they spin a little while the car gains speed. I keep telling him I am worried about his tranny though - gonna shred 1st gear soon

In my case, when I was NA I would have to rev to 5,500 rpm and slip the clutch just enough to keep revs above 4,000rpm. By the time I had the clutch all the way out the car was on it's way to what I am sure was a sub 2 second 60 foot time. But, I didn't have ZEX/ Once I got the turbo, that technique fried the clutch the first time I slipped it during a launch.

Later, with higher power and my weaking ACT pressure plate, I discovered that type of slipping launch would just smoke the clutch and it would keep slipping even with the pedal all the way out. But, reving to 5,000 rpm and side stepping the clutch like QKSilverRS let's me burn out and acelerate quite fast as the revs stay up while the tires slip, while the clutch is fully engaged and never slipped.

Just Asked Drac9 when I gave him a ride the other day, 1st gear is done in no time and as long as the tires are loose there is no bogging off the line. The trick is to manage to break them loose at the drag strip, which is stickier, and I think I need a 6,000 rpm launch for that. At 5,000 rpm I hook up and bog, and run 1.9 sec 60 foots...
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Old 07-15-2002, 01:36 AM   #19
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Question for you Larry... By using the e-brake on a launch, does it really take the slack out of the drivetrain enough to make a difference? What I mean by that is using the brake when completely stopped, and as soon as the clutch begins to engage the brake handle is dropped all the way down. By doing this am I actually helping to preserve my gears somewhat, or am I just dreaming that this method has a benifit to it? Thanks in advance...

Jon
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Old 07-15-2002, 02:05 AM   #20
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the ebrake is only good for keeping you from rolling into the car behind you (or out of staging) while you wait for ther revs to build.

no car revs up as fast as the ones in GT3 for the playstation 2
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Old 07-15-2002, 10:55 PM   #21
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I only wish that my car reved as fast as the ones in video games! Thanks for the reply, I had just thought that by making sure the drivetrain was perfectly still, before I begin to engage the clutch it might take some stress off of the gear during the initial launch. Since from my understanding of how a tranny works, when the shifter is engaged into the gate for a gear, the gear itself, and the drive gear are together and spinning together. Apparently I must be mistaken on this topic. Oh well, thanks again...
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Old 07-27-2002, 04:36 PM   #22
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Quote:
Originally posted by Drews_WRX
Well, i got back from the track today and after tryin to do what AZ does my best was 1.998.....hey, its a 1.9X. I have tried numerious times. I guess I just wasnt meant for AWD. BIG HUGE PROPS to whoever does even 1.899 in a stock car. I seriously dont see how its possible. Maybe this track is just that much more longer.....i dont know. I have had plenty of 2.01-2.04
Dont sweat it man. THere is nothing wrong with your 1.9. People have bested that including me but hey, I am not at your track on that day... I have had nights where I cant run faster then 1.85 when I ran 1.70 the week before. Conditions make a difference.

Now install a boost controller and get full boost in 1st gear and you will probably drop a tenth.


CT
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Old 07-28-2002, 12:45 PM   #23
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Quote:
Originally posted by Drews_WRX
So AZ....when you pull a 1.8X, what do the RPMs drop to? I think I need to be slower on the clutch on the way out.....I spin a couple times and the tach goes down to 3-3500rpm.
Try higher RPM. I would not suggest you try to slip the clutch on this car. If you do it will likely not grab again during the launch and you will have to let out of the gas. On my car I use 5000-5500 RPM. You have much less power. You migh want to try 5500-6000. You are still bogging.. Thats why you are not in the 1.8's. pump up the front tires...

CT
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