4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

de-stroking a 4.6

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Old Sep 26, 2008 | 11:09 PM
  #11  
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some of the benefits of destroking are hi revs, less recipricating mass, easier to add more boost, you have a more usable power band
Old Sep 26, 2008 | 11:14 PM
  #12  
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very true, anyways why would you go with a kb if you want to de-stroke your engine for high rpm blasting? turbo or centri would be alot better for that application. good luck on your build though.
Old Sep 26, 2008 | 11:19 PM
  #13  
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I have always been a fan of roots style blowers and i figure while destroking the motor i can spin it up to peak boost almost as quick as a turbo set up
Old Sep 26, 2008 | 11:28 PM
  #14  
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You do realize with a roots or any positive displacement supercharger you always get full boost, it doesn't take revs at all..
Old Sep 27, 2008 | 12:42 AM
  #15  
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Originally Posted by SVTeeshirt
^ lol i was talking about how im gonna design a v-8 that revs to 15kRPMS with a 150mm Turbo

in IRC ofc.

Lols, I'll believe it when I see it =P 150mm turbo heh.
Old Sep 27, 2008 | 01:44 AM
  #16  
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yeah you cant spin the kb over 6k. well i mean you can but youll just mess something up and plus it wont make any power past that.
Old Sep 27, 2008 | 10:12 AM
  #17  
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i never read on kb website when i ordered it that i couldnt rev it over 6500. They say it builds 1 psi higher at 6,000 and i am assuming an on it builds as it revs higher.
Old Sep 27, 2008 | 10:51 AM
  #18  
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Originally Posted by J_Rod
i never read on kb website when i ordered it that i couldnt rev it over 6500. They say it builds 1 psi higher at 6,000 and i am assuming an on it builds as it revs higher.
I would definitely call and ask before you make a costly assumption. They were built/designed to be used for a 4.6l 2v that doesn't see much rev's above 6-6.5k.
Old Sep 27, 2008 | 10:51 AM
  #19  
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http://kennebell.net/techinfo/ford-t...gtTechTips.pdf

first column last line
Old Sep 27, 2008 | 11:05 AM
  #20  
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I would like to de stroke the engine but i dont want to destroy my KB. Would I still benefit from de stroking my engine but setting the rev limiter at 6k?



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