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Z6 to Y8 swap

  #1  
Old 01-19-2005, 08:21 AM
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Default Z6 to Y8 swap

Allright, I might not be the brightest person out there, but lemme ask this. A Y8 is a better designed head from what I understand, but the compression is higher. If I swap a Y8 instead of my Z6 will I be able to somehow lower the compression back to where it was?
 
  #2  
Old 01-19-2005, 02:06 PM
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Default RE: Z6 to Y8 swap

why would you wanna lower the compression of the head when thats the whole point?
 
  #3  
Old 01-19-2005, 02:31 PM
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Default RE: Z6 to Y8 swap

it depends man like if you want lower compression just stick with the z6 i mean its the same thing as the y8 just the y8 is better because it has more compression for all motor requirements. so yes its a good swap if you want to.
 
  #4  
Old 01-19-2005, 07:51 PM
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Default RE: Z6 to Y8 swap

As I understand the Y8 is less prone to detonation, but the compression is higher. So I was wondering is I could run higher boost with that quality of the Y8 head.
 
  #5  
Old 01-19-2005, 09:19 PM
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Default RE: Z6 to Y8 swap

with the slightly higher compression, the slightly lower boost will make the same power. just lower the boost by .5 psi or so.
 
  #6  
Old 01-19-2005, 09:50 PM
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Default RE: Z6 to Y8 swap

Ok, now I realize that what I though made no sense...
 
  #7  
Old 01-19-2005, 10:02 PM
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Default RE: Z6 to Y8 swap

No worries...
 
  #8  
Old 01-19-2005, 11:32 PM
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Default RE: Z6 to Y8 swap

a lot of people lower the compression too much for boost. for them, its usually about bragging numbers, not driving. yeah, a T4 might make some nice hp numbers pushing on a built sohc at 8:1, but most of us would hate driving it every day. youre better off with the higher compression and low boost from the smallest turbo you can get that will flow enough for your motor. it will spool fast and still have good top-end power.
 
  #9  
Old 01-20-2005, 01:56 AM
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Default RE: Z6 to Y8 swap

T25...
 
  #10  
Old 01-20-2005, 08:32 AM
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Default RE: Z6 to Y8 swap

my thoughts exactly.....
 
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