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Drag Racing Discuss truck setup, driver technique, rules, regulations, organizations, etc. for drag racing.

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Old 07-30-2009, 10:56 PM   #1 (permalink)
duramaxnokaoi
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2wd?

What all would it take to get a nicely modded 2WD Dmax to do a boosted launch at the track and not spin?

I know slicks, but is there anyone running a 2WD dmax at the track in the 500HP range and hooking up good?

Thanks,
Sean

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Old 07-30-2009, 11:16 PM   #2 (permalink)
jbrown1132
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eliminating the spring wrap, lower rear gears ratio, real good sticky tires or slicks would be best. you would do better at the drag strip with a ladder bar type of set up that could help transfer the weight to the rear axle, like a drag car setup, but then driving on the street would suck big time. also, the possibility of u joint or drive shaft failure will go up drastically the more your able to plant the power and launch like a drag car does.

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Old 07-31-2009, 12:05 AM   #3 (permalink)
Mitco39
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Old 07-31-2009, 08:26 AM   #4 (permalink)
jpowel29
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Adding weight at/near the rear axle does help. I just installed some QA1 adj front shocks and will be moving some weight around (moving batteries to frame rail) and adding a line loc. I have slicks and Cal-Tracs. A second gear launch trans tune will help with a boosted launch.

My best 60' with Cal-Tracs and slicks (before doing any of the above changes and leaving the line at 2lbs of boost) has been 1.91.
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Old 07-31-2009, 04:46 PM   #5 (permalink)
BattleMax
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Get M&H full drag slicks along with some traction bars. My manual trans 2wd truck pulls high 1.8-low 1.9 60fts easy with out doing a boosted launch or EVEN HEATING THE TIRES. If your truck is an auto then launching will no problem. The best thing you can do is get your pinion angle set and running the slicks at right psi. If one of those is off you will spin all the time. There is no need to put extra weight in the back of your truck to get it to launch good. If you add weight then you are just covering up a problem and slowing your truck down.
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Old 07-31-2009, 08:19 PM   #6 (permalink)
duramaxnokaoi
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Good info thanks guys. I'm trying to sell the 05 I have and get an 06 so it'll have the 6 speed and supposedly better bearings and a few other things I think they upped the anti on. Just trying to figure out if I really need 4WD or not - it rarely snows out here anymore so the track is the only reason, but it looks like slicks and some bars might be able a good start...
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