Heading Back to the Track on Friday - LS1TECH

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Heading Back to the Track on Friday

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Old 04-11-2012, 12:57 PM   #1
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Red face Heading Back to the Track on Friday

So I'm heading to a local track on Friday. Weather is supposed to be 65* at 5pm, down to 48* by 11pm. Should be perfect temps for the motor. The only time I've run this car at the track before was on 1/32 Sumitomo's which spun in 1st thru 3rd. I had 3/4 of a tank of gas, large dual 8" sub box/amp, and approx. 100 lb tool box in the rear. This was my best run last time:

6/10/11 7:48 PM
60': 2.155
330': 5.862
1/8: 8.857 @ 82.360
1000': 11.410
1/4: 13.562 @105.090

Pressure: 29.950
Temp: 84.2*
Humidity: 66%
DA: 1962.260

Again, ran that on 275/45R16 Sumitomo's with no tread. Mods since then are a QTP Electric cutout, 315/35R17" Nitto NT555 Extreme's, etc. I'll be removing the sub box, amp & tool box, running with less gas, and hoping for a 12.999 or better with the predicted temps and "new setup". I'll have GoPro video's as well.

I think I'm going to start at 30 psi for the rears (Working down from there), and try some 2000-3000 RPM launches. I'm worried about grip, and blowing up the 10 bolt...

Video's from last time:
https://www.youtube.com/watch?v=sJJPFGduDq4

https://www.youtube.com/watch?v=OH50KRLvCdk

https://www.youtube.com/watch?v=4IXrIncFk_Q

Last edited by HibachiZ28; 04-11-2012 at 01:08 PM.
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Old 04-12-2012, 03:16 PM   #2
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So there are several people here at my work going with me tomorrow to race. Here's the breakdown...

Year Make Model 0-60 Mile

2005 Jeep WK SRT8 5.0 13.0
2010 Chevy Camaro SS 5.1 13.1
1998 Pontiac Trans Am Ram Air 5.0 13.4
2011 Subaru Impreza WRX Wagon 4.9 13.5
2008 Mitsu. EVO 4.9 13.6
2004 Honda S2000 5.8 14.2
1989 Ford Mustang GT 6.2 14.8
1998 Dodge Dakota RT 6.9 15.2
1998 Ford Mustang GT 7.5 16.8

I will be racing the SS (Again), the SRT8, the WRX, and others if time allows. Getting excited now!
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Old 04-12-2012, 03:18 PM   #3
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For street tires I usually lower my rears to ~25 psi then sometimes end up taking another 2 psi out or so.

30 psi is pretty close to street pressure.
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Old 04-12-2012, 03:22 PM   #4
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Quote:
Originally Posted by MuscleCarNut711 View Post
For street tires I usually lower my rears to ~25 psi then sometimes end up taking another 2 psi out or so.

30 psi is pretty close to street pressure.
Yah I run 35 on the street. Tread patch contact is nearly perfect across the tire. I'll try 25 and go from there. Thanks! It should be around 58-60* by the time I get in my first run.
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Old 04-12-2012, 03:33 PM   #5
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I know that track very well I'll be there shaking down the new setup next Wednesday.

2 tips - stage as shallow as possible. Just flicker the bottom bulb on. Secondly, keep your right foot to the floor when you shift
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Old 04-12-2012, 03:53 PM   #6
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Quote:
Originally Posted by 94Z28rag View Post
I know that track very well I'll be there shaking down the new setup next Wednesday.

2 tips - stage as shallow as possible. Just flicker the bottom bulb on. Secondly, keep your right foot to the floor when you shift
The shallow staging I've not tried to do on purpose, but from memory I think I do it every time. Pre-stage lights up, then I go as slow as possible 'til the Stage lights up.

I've been messing with power shifting since those videos and I have it down now.

I really can't wait to get down there and test the new surface!
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Old 04-13-2012, 08:00 AM   #7
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Let me know how the new surface is...
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Old 04-13-2012, 10:18 AM   #8
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I will! From all the photos I've seen it looks like it is going to be great!
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Old 04-13-2012, 12:30 PM   #9
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Im more curious to see how MPH you'll pick up just opening the cutout. In for this. Also power shifting should help work your E/T.

Last edited by adamantium; 04-13-2012 at 12:42 PM.
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Old 04-13-2012, 02:11 PM   #10
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I'm thinking overall the runs should be superior. Even right now at 3:08pm everything is far better.

On June 10th, 2011 when I did those runs above...

Temp: 84*
Pressure: 29.95 inches
Humidity: 66%
Dewpoint: 71*

Currently it's...
Temp: 59*
Pressure: 30.21 inches
Humidity: 41%
Dewpoint: 37*
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Old 04-15-2012, 12:07 AM   #11
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Any updates?
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Old 04-15-2012, 07:06 AM   #12
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Well.... how was Cecil County ???? From the Friday nite TNT it looked CROWDED.
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Old 04-15-2012, 10:07 AM   #13
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Yep, check my post here: http://www.ls1tech.com/forums/multim...ak-rt-etc.html
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10, 3000, bolt, drag, extreme, launch, m6, nitto, nt555, performance, pressure, psi, racing, rpm, street

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