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Old Jan 10, 2010 | 08:38 PM
  #1  
02WhiteandBlack's Avatar
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Diesel Fan
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From: South Texas
Default Boost Launches

Ok iv got two questions...

First when i boost launch I usually just run it up to 1400 rpm in first and dump the clutch, well the other day i was racein my buddy in a mostly stock common rail and knowin his truck if i could get him off the line i could beat him so i ran it up a lil higher maybe 1600-1700 rpm and when i dumped the clutch again in first it hoped twice and then the diff poped into nutreal is there sometin wrong or just to high of rpm because this is the second time its done it...

And this leads to my next question how are some guys boost launchin in third gear and 2000 rpm? aftermarket clutch? or is there a special way you have to do that?
 
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Old Jan 10, 2010 | 08:40 PM
  #2  
94cummins12v's Avatar
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From: Havre mt
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when i do boosted launches i do them in 3rd 1st you dont realy gain anythinf secound is better. i do 3rd gear boosted luanches with 10psi of boost by reving it up then dumping the clutch your onching it like an auto
 
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Old Jan 10, 2010 | 08:57 PM
  #3  
02WhiteandBlack's Avatar
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From: South Texas
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Do you let the clutch out slower or do u dump it because anytime iv tryed to dump the clutch in anything high than 1st it wants to stall out and seems alot slower than dumpin in first
 
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Old Jan 10, 2010 | 09:09 PM
  #4  
kazairl's Avatar
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From: Nebraska Panhandle
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I usually rev it to about 2400 or so and let the clutch out quickly. Don't dump it but try letting it slip a little before you let it all the way out.


This is in no way conducive to long clutch life. I would not recommend it on a stock clutch.
 
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Old Jan 10, 2010 | 09:12 PM
  #5  
02WhiteandBlack's Avatar
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From: South Texas
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Ya im more worried about clutch life so i think ill stick to what iv been doin
 
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Old Jan 10, 2010 | 09:40 PM
  #6  
Lil Red Express's Avatar
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Joined: Aug 2008
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From: Rock Springs WY
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I use run my old 97 up to around 2800 and let the clutch out in 3rd. Went through several clutchs even bigger aftermarket ones. Along with several 5spds.
 
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Old Feb 13, 2010 | 02:11 PM
  #7  
07redsled's Avatar
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From: schnecksville pa
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pull out in 2nd and learn how to shift faster
 
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Old Feb 18, 2010 | 12:28 AM
  #8  
bajabomber87's Avatar
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From: Salinas, CA
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How big are your tires and what gears do you have if 2nd isn't working?
 
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Old Feb 18, 2010 | 01:29 AM
  #9  
94cummins12v's Avatar
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From: Havre mt
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even with my 37" tires i have no issue doing boosted 3rd gear launches when i hit the strip i even do it id 4hi then release the hubs when im in 5th
 
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Old Feb 18, 2010 | 06:11 AM
  #10  
mfolsomblueD's Avatar
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Joined: Dec 2009
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From: Denison Texas
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Bring them up to about 2800-3000 and just dump the clutch in 2nd and then hit 3rd quickly and if your shifts are good that will get you off the line
 
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