compression ratio, '88 5kcstq (motor)

[Todd Phenneger]

Heya,

  I'm running 8.8:1 at 9psi with no problems.  I will run more but not till I get an IC in there.  On hot days it will ping at any thing over 9psi.  Pulls GREAT down low and really helps turbo spool up.

  I think you should be fine.  If you want just tell Scott and he can (probably, I dont want to speak for him) tweak the code a tad bit so the timing isnt quite so advanced but I think you should be fine at 12psi.

l8r

  TOdd


  

  Ken Keith <auditude at neta.com> wrote: 
What would the repercussions be if I were to put a 2.5 liter bottom 
end in my MC motor, with a compression ration of 8.5:1?

Would I have to make any other modifications to compensate for it, 
to keep it from blowing up or something?

The way the car would be setup, ideally, would be with a SJM chip 
and spring, free flow exhaust (3" straight pipe after the cat?), and 
Bosch bypass valve.

Would I need any custom code for the chip?

Thanks,

Ken
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Todd Phenneger
    83' ur-q (awaiting a 20vt)
    84' 4ktq  fun but I'm sick of CIS.


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