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Ideal compression ratio for a new 331 build?

  • Thread starter Thread starter Crimson
  • Start date Start date Mar 9, 2004
C

Crimson

New Member
Feb 5, 2004
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Mar 9, 2004
#1
  • Mar 9, 2004
  • #1
What kind of compression should I be looking for in a new 331 build. It would be a daily driver running pump gas staying N/A.
 

GTJake

Founding Member
Oct 28, 2002
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Ann Arbor, MI
Mar 9, 2004
#2
  • Mar 9, 2004
  • #2
You could get away with 9.8:1 easily with 93 octane.

Jake
 
S

stangin it

Founding Member
Sep 25, 2002
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Long Island, NY
Mar 9, 2004
#3
  • Mar 9, 2004
  • #3
10:1 or 10:5:1
 

Numbles

Active Member
Dec 10, 2003
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Chicago, IL
Mar 9, 2004
#4
  • Mar 9, 2004
  • #4
You could easily go into the 10's in compression with pump gas. plus the exrta howsepower you get from it is worth it.
 

Joes95GT

New Member
Jan 23, 2003
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0
Delaware
Mar 9, 2004
#5
  • Mar 9, 2004
  • #5
I've seen 12.5:1 run on 93 octane. As a general rule of thumb, the more compression you have, the less timing you can run on pump gas.

Joe
 
C

Crimson

New Member
Feb 5, 2004
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Mar 9, 2004
#6
  • Mar 9, 2004
  • #6
Living in Northern California I don't see many station with 93 octane.. in fact, I haven't seen any. I always run 91 right now. Thoughts on what I can get away with running 91 and 10-12* timing?
 
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