Yes, "pump" gas 
how high of comression can be ran on pump gas
Thread Starter
Staging Lane
Joined: May 2004
Posts: 63
Likes: 0
how high of comression can be ran on pump gas i am building a 347 engine and have the trex cam. The trex cam loves compression according to thunder racing. what is the safest compression i can run with that cam and spray on a good tune on pump gas? 11:1, 11:5?
We usually cut the line at 11.5:1. I do know some people have been able to go higher but since we are out here in West Texas and 93 octane is pretty hard to come by we just stick to the 11.5:1 rule.
Thread Starter
Staging Lane
Joined: May 2004
Posts: 63
Likes: 0
Trending Topics
pump gas is a VERY relative term, esp with the new blends being used as substitutes for the real thing in most gas pumps. basically it is all in the tuning/timing/setup. some engines like more cr, some dont.
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