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sdavid · 05-06-2009, 11:50 PM

There are alot of things that determine if your are going to detonate or ping at 10 to 1 or higher compression. How well the engine is built is one. The quench needs to be exact for another. You need a good cooling system. Don't run too much timing to it. The rear gear has to do with it to keep the engine from lugging. Your cam overlap, etc.

My big block 402 is at 10.5 to 1 with iron closed chamber heads. It does not ping. I put too much timing in it, and it will. I am running a voodoo 262 cam. I am at the edge of having pinging problems.

Your cam needs to match your compression, along with the rest of your components.

05-06-2009, 11:50 PM	#8
sdavid Registered User Join Date: Mar 2005 Location: Livingston, TX Posts: 56	Re: Trying to stay on pump gas... There are alot of things that determine if your are going to detonate or ping at 10 to 1 or higher compression. How well the engine is built is one. The quench needs to be exact for another. You need a good cooling system. Don't run too much timing to it. The rear gear has to do with it to keep the engine from lugging. Your cam overlap, etc. My big block 402 is at 10.5 to 1 with iron closed chamber heads. It does not ping. I put too much timing in it, and it will. I am running a voodoo 262 cam. I am at the edge of having pinging problems. Your cam needs to match your compression, along with the rest of your components. __________________ '81 C10 Stepside, SBC, T350, Wood Bed, and silverado options '87 K5 402 BBC, T350, 3.73s locked up, 2.5"Lift, 33x12.50x15s Last edited by sdavid; 05-06-2009 at 11:52 PM.