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Dragstrip and Launch Techniques Discussion 1/4 mile, 1/8 mile, launch discussions.

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Old 06-22-2013, 10:30 AM   #1
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Miserable Night at the Track

I couldnt launch for shit. I lowered my pressure to 25 lbs. I rolled into and hammered it. Neither worked well. I would spin somewhere. I have some video of my runs.





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Old 06-22-2013, 11:02 AM   #2
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For the circumstances, those times arent too bad.

What type of tires are you running and what was the temperature like?
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Old 06-22-2013, 11:16 AM   #3
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Yeah what tires, and what's your best in the car?
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12.06@113 1.70 | Bolt-Ons | Stock 3.27s
Mods: GPI Tune | Bo's PTB | Kooks LTs | Hooker Maxflows | Circle D 3200 | New Era OTR | RCR AirRam Manifold | Powerbond UDP | 3.91s

LSX Record List: http://motorhed.com/xf/threads/lsx-r...the-list.6022/
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Old 06-22-2013, 11:17 AM   #4
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Im running stock tires with 25 lbs of pressure. Temp was 86-92. Im gonna post some video from my gopro. I didnt have the right mount so video is ok.
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Old 06-22-2013, 11:19 AM   #5
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Yeah what tires, and what's your best in the car?
My best was 12.4 back in February. But that was before the stall.
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Old 06-22-2013, 11:27 AM   #6
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Sounds like a tough combo to hook on stock tires.
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PROJECT HEAVY CHEVY: 2010 Camaro SS/RS |1SS | L99 | CGM
13.15@106 1.95 | 100% Stock
12.06@113 1.70 | Bolt-Ons | Stock 3.27s
Mods: GPI Tune | Bo's PTB | Kooks LTs | Hooker Maxflows | Circle D 3200 | New Era OTR | RCR AirRam Manifold | Powerbond UDP | 3.91s

LSX Record List: http://motorhed.com/xf/threads/lsx-r...the-list.6022/
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Old 06-22-2013, 11:32 AM   #7
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You have no chance of hooking that car on street tires for any sort of decent time at all.
You've got an 11 second car with a low 1.7 60 foot and you're only going to do that on a good tire.
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Old 06-22-2013, 11:51 AM   #8
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You have no chance of hooking that car on street tires for any sort of decent time at all.
You've got an 11 second car with a low 1.7 60 foot and you're only going to do that on a good tire.
I don't know about 11's, but you've definitely got some room to improve. The heat and humidity are also hurting your times as our cars don't like the heat. Raise your tire pressure back up to around 30-32. IMO, 25 is too low for a stock tire. I've managed 1.6-1.7 short times on stock tires at 32 lbs.
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Old 06-22-2013, 11:52 AM   #9
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I could hear the camera rattle every time it would spin.





http://youtu.be/JvnXTKhiPEw
http://youtu.be/L7NHrJiZanI
http://youtu.be/L7NHrJiZanI
http://youtu.be/L_0XK2lMSec
http://youtu.be/aieevh8hZiQ
http://youtu.be/fUkqtW8MLts
http://youtu.be/bZhmaApuFM0?t=1m40s

http://youtu.be/oDmY62TH7B4?t=40s

Last edited by JEFF75645; 06-22-2013 at 12:10 PM.
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Old 06-22-2013, 11:56 AM   #10
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linky no worky
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12.618 @ 110.75 Bone Stock 1/4 mile
8.165 @ 86.52 Bone Stock 1/8 mile
11.189 @ 124.44 on a 1.73 60' TVS2300 3.4 pulley, JRE tuned, Kooks LT headers and HF cats, MBRP catback exhaust, CAI intake, ADM scoop. Stock wheels/tires
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Old 06-22-2013, 11:59 AM   #11
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working on it
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Old 06-22-2013, 12:11 PM   #12
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I could hear the camera rattle every time it would spin or shift

We still had a good time. Not miserable.lol. My wife wanted to make a few runs but decided not to.




http://youtu.be/JvnXTKhiPEw
http://youtu.be/L7NHrJiZanI
http://youtu.be/L7NHrJiZanI
http://youtu.be/L_0XK2lMSec
http://youtu.be/aieevh8hZiQ
http://youtu.be/fUkqtW8MLts
http://youtu.be/bZhmaApuFM0?t=1m40s

http://youtu.be/oDmY62TH7B4?t=40s
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Old 06-22-2013, 12:14 PM   #13
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I agree that 25 is too low for stock tires. I would say lowest would be 30-32.

Those aren't like drag radials with some sidewall on em. So lowering tire pressure actually reduces the amount of rubber contacting the ground.

Try 32psi and do a little burnout. Not too much to put on a smoke show, just enough to clean them and get em hot.

But really you need either radials or even better yet 18's on there.

sent from my galaxy s3. that would explain the errors.
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Old 06-22-2013, 12:17 PM   #14
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Im working on getting some 18's with MT ET Streets. And 18's all around.
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Old 06-22-2013, 12:56 PM   #15
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That will help a bunch for sure.
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Old 06-22-2013, 12:58 PM   #16
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Originally Posted by xjer22x View Post
That will help a bunch for sure.
I was also going to upgrade my cam and heads, but I can't even put the power down now. Gonna work on suspension first. The results from last night made it very clear.
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Old 06-22-2013, 01:02 PM   #17
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I don't know about 11's, but you've definitely got some room to improve. The heat and humidity are also hurting your times as our cars don't like the heat. Raise your tire pressure back up to around 30-32. IMO, 25 is too low for a stock tire. I've managed 1.6-1.7 short times on stock tires at 32 lbs.
This car should easily run 11's! 2 factors that he needs, TIRES & DA!
Aren't you cammed Jeff? And stalled? PTB and Ported heads?
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Old 06-22-2013, 01:06 PM   #18
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Yep. I've got everything you listed.
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Old 06-22-2013, 01:14 PM   #19
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I was also going to upgrade my cam and heads, but I can't even put the power down now. Gonna work on suspension first. The results from last night made it very clear.
It is possible to get better 60fts with stock suspension. I have completely stock suspension and rear end and i can run 1.7-1.8 all day long.

But it definitely wouldnt hurt. The biggest opportunity you are missing out on right now are the tires.

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Old 06-22-2013, 01:27 PM   #20
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I agree. So as of yesterday bigger cam and milled heads are on the bottom of the list. Suspension mods and 18" wheels with slicks are first.
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Old 06-22-2013, 01:28 PM   #21
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Originally Posted by xjer22x View Post
It is possible to get better 60fts with stock suspension. I have completely stock suspension and rear end and i can run 1.7-1.8 all day long.

But it definatly wouldnt hurt. The biggest opportunity you are missing out on right now are the tires.
^^ you don't need to worry about suspension in an A6! I've cut 1.56 60fts on just a bolt on car with 365hp!

Rhino cuts 1.48 I believe and he's still running stock suspension.

Spend that money on tires and some lighter wheels.
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Old 06-22-2013, 01:32 PM   #22
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I agree. So as of yesterday bigger cam and milled heads are on the bottom of the list. Suspension mods and 18" wheels with slicks are first.
I think this is a better idea. Master putting down the current power level you are at now, before adding more to your plate.

It will just make it that much more difficult to put it down then.
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Old 06-22-2013, 01:34 PM   #23
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Cool. If the stock suspension will hold as it is them I can have the wheels that much quicker.

I lost a race last night I should have won due to shitty stock tires. But gave that M3 hell all night.
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Old 06-22-2013, 01:39 PM   #24
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Yeah it will hold for sure.

general rule of thumb is every tenth you can knock off of you 60ft... doubles at top end.

So roughly look at it as if you could knock 1/2 a second off your 60ft and get down to a low 1.7 for example... That would be close to a full second off your 1/4 time.
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Old 06-22-2013, 01:44 PM   #25
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I noticed also that at some points its shifting very quickly. I shifted 2 times in a second or two past the 1/8. Is this just the stall doing its thang?

Have yall had a chance to look at some of the videos?
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