4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

cant cut 60ft under 1.9 =[

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Old 05-02-2010, 10:40 PM
  #11  
tbirdscwd
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I'd keep bringing the rpm up til you start breaking loose, and then back off a hair. Even if you end up spinning a small amount, it's better than not launching high enough from my experience. My best 60ft this year was a 1.799 and I spun quite a bit.
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Old 05-02-2010, 10:52 PM
  #12  
DarkShadow04
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alright, next time i go im gonna have to try slowly increasing the rpms..after the rear gets looked at lol
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Old 05-02-2010, 11:20 PM
  #13  
dimebag
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Yup if its just dead hooking ur not launching high enough...you need to find the point where its right on the edge and borderline on the verge of spining...and fix your rear...your springs aren't helping you at all...neither are stock control arms... are u coming off a 2 step
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Old 05-03-2010, 01:00 AM
  #14  
DarkShadow04
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no im not dimebag =[ i got the shift light with launch control so i could hopefully put off getting the 2 step but im going to have to get one sooner than later...its just too much going on, by the time i get my launch rpm where i want it the tree is already lighting up, too much to think about lol...im gonna have my rear checked tomorrow (well later today lol) and im going to start lookin into the 2step, lcas and subframes, since it seems like thats wat would help...im definately not going to bother going again until something changes...i think i should be getting better 1/4 times than 13.7...unless my lack of suspension mod is really killing me that much...i really dont think my driving is horrible..

and i know the lowering springs are hurting not helping but i love the car lowered an inch so there must be a way to work around that, lol
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Old 05-03-2010, 08:36 AM
  #15  
dimebag
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Sure there is...cut stock rears...and fox 4cyl springs up front...cut them if u want to
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Old 05-03-2010, 08:43 AM
  #16  
devongarver
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Read this, your suspension is killing you.

Also, as previously mentioned, the diff needs addressed, one wheel wonders won't help.

And again with the higher launch rpm.
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Old 05-03-2010, 08:47 AM
  #17  
amoosenamedhank
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I guess I didn't read your other thread about your diff... but if you're doing the one wheel wonder you probably smoked the clutches in the diff.. Time for a new diff and 31 spline axles or I guess you could just do a rebuild on the old one depending on your budget.
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Old 05-03-2010, 09:18 AM
  #18  
teej281
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I think that he has 31 splines already...but sounds like you either need friction modifier in the diff fluid or new clutches in the diff.
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Old 05-03-2010, 11:11 AM
  #19  
dimebag
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Friction modifier aids in the slipping of the clutches around turns...it doesn't help them stay locked up
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Old 05-03-2010, 01:40 PM
  #20  
tbirdscwd
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Oh yeah, and start powershifting!!!
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