Engine & Internal Chat about beefing up your engine's insides here.

Differences?

  #1  
Old 02-15-2007, 01:10 PM
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Default Differences?

I was cleaning up the engine yesterday and I pretty much assumed that my motor was a J30A4, but looking around I noticed that it is a J30A5. Is there some major differences between the two?
 
  #2  
Old 02-15-2007, 01:43 PM
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Default RE: Differences?

the j30a5 used an improved intake system over the j30a4 and claimed about 10hp/10tq gains over the j30a4, however, from what I've read in actually practice it came out to be more like 4HP difference.... So the intake is really the biggest change between the two
 
  #3  
Old 02-15-2007, 01:47 PM
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Default RE: Differences?

Cool, thanks for the info....
 
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