Going to the drag strip saturday. Suggestions?
Thread Starter
TECH Addict
Joined: Nov 2001
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From: St Louis, MO
Going to the drag strip saturday. Suggestions? Its been about 7 months since my last run of 13.146 @ 109.870 with 2.14 60ft. I knew that my car had more in it, it just needed traction. At the time I had a Donaldson intake, B&M Ripper, straight pipe exhaust and 275-40ZR17 BFG Comp TA ZR tires.
Since then I've added an underdrive pulley, T1 cam, Nitto 555R 275-40R17 tires and replaced the exhaust with Corsa Indys.
I still have stock intake, heads, headers, cats, clutch and stock tuning.
Does anyone have any launch/driving suggestions?
Any ET predictions?
Thanks,
Eric
Since then I've added an underdrive pulley, T1 cam, Nitto 555R 275-40R17 tires and replaced the exhaust with Corsa Indys.
I still have stock intake, heads, headers, cats, clutch and stock tuning.
Does anyone have any launch/driving suggestions?
Any ET predictions?
Thanks,
Eric
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Joined: Nov 2001
Posts: 3,604
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From: Los Angeles
Re: Going to the drag strip saturday. Suggestions? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 66ImpalaLT1:
<strong>Does anyone have any launch/driving suggestions?
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I say you should launch good and drive straight, but thats about all the suggestions I can make. <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />
I'll guess 12.4@114.3mph or a 12.7@115.8 depending on your launch success.
<strong>Does anyone have any launch/driving suggestions?
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I say you should launch good and drive straight, but thats about all the suggestions I can make. <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />
I'll guess 12.4@114.3mph or a 12.7@115.8 depending on your launch success.
Re: Going to the drag strip saturday. Suggestions? What RPM did you launch at the last time at the track? Tire pressure? Shift points?
Most important, just have fun! <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" />
Most important, just have fun! <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" />
Thread Starter
TECH Addict
Joined: Nov 2001
Posts: 2,551
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From: St Louis, MO
Re: Going to the drag strip saturday. Suggestions? Last time I had 30psi all around, launched at a different rpm every run but I never found anything I liked. I've been shifting off the HUD shift light, I dont know what RPM that is, but its very close to the rev limiter.
This time I'm going to try 40psi in front, 20 psi in the rear and give the Nitto's a really good burnout. I'm going to shift off the HUD since I havent raise my rev limiter yet.
LS1Edit will be here in 3 weeks. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Eric
This time I'm going to try 40psi in front, 20 psi in the rear and give the Nitto's a really good burnout. I'm going to shift off the HUD since I havent raise my rev limiter yet.
LS1Edit will be here in 3 weeks. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Eric
Re: Going to the drag strip saturday. Suggestions? Dude, I went to Drake. Played a little ball there. We even beat Iowa State one year! <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Ok, lets get you down the track. Line lock? What was the low RPM that you tried?
Ok, lets get you down the track. Line lock? What was the low RPM that you tried?
Thread Starter
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Joined: Nov 2001
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From: St Louis, MO
Re: Going to the drag strip saturday. Suggestions? Honestly I didnt keep too much track of what RPM I launched at. Saturday I'm going to write down my launch rpm on the timeslip so I can be a little more scientific about it.
I think I tried as low as 2000rpm, still spun. I think I needed to get into the gas a little slower. Hopefully it will be easier on drag radials.
Eric
I think I tried as low as 2000rpm, still spun. I think I needed to get into the gas a little slower. Hopefully it will be easier on drag radials.
Eric
Launching!
Joined: Dec 2001
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From: Wilmington, NC
Re: Going to the drag strip saturday. Suggestions? Hey 66-- I just started using the Nitto's a few weeks ago, and think I've got a good handle on how to use them best--(that is, closer than I was 3 weeks ago)
The first time I went to the track I was exited, but used to my Firestone RF's, so I didn't know exactly what I needed to do to take advantage of the DR's.(The max I could launch those at was 2000RPM or I'd spin)
My best 60 that day was 1.96 <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" /> <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />
The following week, I talked to some people who educated me, and here's what I learned:
These tires need to be UNDER 20 lbs to do well-- I ran at 17 lbs.
The stage is vital to your results-- I went around the water, and cooked them at ~5K for about 5-8 sec...until they pulled the car forward too much for the brakes to hold without bogging...
Finally, I launched at about 4500-5000RPM, and floored it-- (almost, but not quite dumping the clutch--like a really rapid slip) and it felt good no bog or loss of traction--
This got me to a 1.88 '60--- and I know there is more in the tires, so I'm going to adjust my technique this Thursday and see how it goes-- as a baseline, though--I hope this will help you get used to them quicker than it did me <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
<small>[ May 21, 2002, 02:07 AM: Message edited by: MDL-01C5 ]</small>
The first time I went to the track I was exited, but used to my Firestone RF's, so I didn't know exactly what I needed to do to take advantage of the DR's.(The max I could launch those at was 2000RPM or I'd spin)
My best 60 that day was 1.96 <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" /> <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />
The following week, I talked to some people who educated me, and here's what I learned:
These tires need to be UNDER 20 lbs to do well-- I ran at 17 lbs.
The stage is vital to your results-- I went around the water, and cooked them at ~5K for about 5-8 sec...until they pulled the car forward too much for the brakes to hold without bogging...
Finally, I launched at about 4500-5000RPM, and floored it-- (almost, but not quite dumping the clutch--like a really rapid slip) and it felt good no bog or loss of traction--
This got me to a 1.88 '60--- and I know there is more in the tires, so I'm going to adjust my technique this Thursday and see how it goes-- as a baseline, though--I hope this will help you get used to them quicker than it did me <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
<small>[ May 21, 2002, 02:07 AM: Message edited by: MDL-01C5 ]</small>
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