octane question for a daily build
Thread Starter
Teching In
Joined: Nov 2023
Posts: 13
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octane question for a daily build I am prepping a gen3 5.3, and I was thinking of running gen4 rods and pistons . However, I will be running 706 heads and I believe my compression will be around 10.25:1. I will be running a tsp stage 2 cam, and I wanted to ask if its possible to run 87 octane with the added compression? I know higher compression needs a cooler burning fuel, but this isn't a major build. It is going in an 03 4wd tahoe.
TECH Resident
Joined: Jun 2011
Posts: 937
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You should probably keep the PE around lambda .82, especially if you do any towing. Get your quench distance into the .036" to .040" range to improve detonation resistance and run efficiently with reduced ignition timing.
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