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Old Apr 24, 2006 | 01:50 PM
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Question Launching

ive herd people talk about launching when u race, i know what it entails, but i would like if some one could explain to me how to launch
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Old Apr 24, 2006 | 01:56 PM
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Originally Posted by Tofu
Okay, I've gotten quite a few PM's from people asking "What I did" to get my 14.1 1/4 mile ET. As a disclaimer, keep it mind that my runs were not very consistant, so I have absolutely no proof that my "method" will work...it's just simply what I tried, and what I subsequently ran. So if you try this, and it does not work for you, please do not send me hate-mail or death threats.

First off, was track preparation. I took out everything unnecessary out of my car before I went to the track. All my CD's, all my handbooks, vehicle manuals (the only thing in my glovebox was my registration and proof of insurance)...everything, even the floor mats. You could even remove the jack and spare which would be a pretty decent weight drop, I chose not to because of the long drive....Anyway, doing this allowed for a vehicle weigh in of 3010lbs w/ me in it on an "empty" tank. Keep in mind I am 6,1 and 240lbs (muscle weighs more than fat ), so the vehicle weight without me in it would have roughly been 2765lbs...not bad at all vs a lot of the magazine ratings. When I arrived at the track my "low fuel" warning came on, almost exactly as I was getting teched in. I did not put any gas in until we left, so there was still enough fuel to get some runs in.

Okay, this is exactly what I did on my 14.1 run:

We were in line about 45 minutes while the track was being prepped, during that time I popped the hood and let the engine cool down a bit (when I got up to stage I checked the coolant temp via/ instrumentation and it was 171 degrees F). I also dropped my two front tires pressure from 40lbs to 23-25lbs. When I got up to the staging area, I drove around the water box and did not do any burn-out what-so-ever...just my personal opinion that it's worthless to heat up regular street tires....

Once lined up, I revved the motor just slightly and tried to hold it around 1.5k RPMs; at that time I also let off the clutch just before the disengaging point. As the tree lights went down I revved the motor just slightly more to around 2k rpms and let off the throttle a little bit. (By the time the last yellow light flashed it was back down to almost exactly1.5k)
As the final yellow light flashed, I eased off the clutch and very carefully, and smoothly, applied the throttle. The car really felt strong out of the hole, I did not get any tire spin, wheel hop, or bogging in first. Second was a different story. I wrapped the car up to about 6.3k and powershifted into 2nd (doing this @ that particular rpm jumped it straight to redline), I then experienced either clutch slippage or wheel spin, as the car seemed to coast while the rpm's rose consistantly (probably clutch slippage), I feathered the throttle and quickly regained traction and went WOT again (I don't think this entire scenario was more than half a second in length), I powershifted again into 3rd and that is when the SS really seemed to pick-up and go. I finished @ the top of 3rd gear and coasted to the exit.

Hope this helps, stay safe out there!
____
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Old Apr 24, 2006 | 10:02 PM
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ok, that didnt answer my question on HOW to launch from a rolling position liek if i were to race my friend from a rolling start
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Old Apr 25, 2006 | 12:50 AM
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Errr... "launching" implies that you are racing from a complete stop. If you are doing a rolling start, you're already moving and don't have to worry about wheelhop or tirespin... just mash the accelerator and shift when you get to redline.
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Old Apr 25, 2006 | 09:39 AM
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ahh ok, thanks alot. my friend did a good job explaining it to me, i though u would be able to geta launch while u downshift giving u a better run on the guy, thanks alot
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Old Apr 25, 2006 | 01:20 PM
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Why do you need to know how to launch from a roll? Just put in the lowest gear it'll go in BEFORE you start the race, and when it starts - floor it.
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Old Apr 25, 2006 | 01:28 PM
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to calrify ...not the lowest gear it will go in ...but the highest rpm you can get into before redline (ie in the upper powerband where most power is availible) ... you dont want to throw it in first going 80
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Old Apr 25, 2006 | 01:30 PM
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Originally Posted by c7015
you dont want to throw it in first going 80
You can't even put it into first unless you're going less then 35mph.
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Old Apr 25, 2006 | 03:59 PM
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Here is a little guide for you for roll racing.
These are basically what gears you want to be in for the right speed, so you can be in your powerband.

1st Gear - 0-10 mph
2nd Gear - 20-45 mph
3rd Gear - 55-70 mph
4th Gear - 75-to whatever.
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Old Apr 25, 2006 | 04:16 PM
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Originally Posted by SwizzDSMSS
Here is a little guide for you for roll racing.
These are basically what gears you want to be in for the right speed, so you can be in your powerband.

1st Gear - 0-10 mph
2nd Gear - 20-45 mph
3rd Gear - 55-70 mph
4th Gear - 75-to whatever.
I would never roll race from 4th. If your under 90 3rd, as its your longest gear. If you start in 4th, you will be very power deprived in your race.
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Old Apr 25, 2006 | 04:23 PM
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I also wonder about starting from a roll in 2nd at 20...if I could nail down that 1-2 shift (which I can't yet, but I'm working on it!) then I'd definitely still be in 1st at that point.
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Old Apr 25, 2006 | 04:34 PM
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Well of course, I have never roll raced over 75mph, and never will cause there is no point.

Also Tom your right but then traction is an ass in 1st to 2nd going 20mph
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