| Re: My LT1 rebuild |
Subject: Re: My LT1 rebuild by rklessdriver on 2011/12/13 18:00:47 Indexing plugs is a method of preventing the piston from hitting the ground strap and closing up the gap. It is a nessecity in old 23* SBC's and 24* BBC's because of the huge dome pistons we have to run in order to get any compression. This is one of those things REAL RACE CARS use to have to do - just to run. It was a PITA, time consuming and I really hated doing it. It has nothing to do with FI, NA or anything else.... as long as spark jumps across the tip to the ground strap it's gonna set off the AF mixture. The position that you orient the open tip of that gap, one way or the other dosen't make any difference to the AF mixture. Joe Sherman has tested this on his dyno to death for customers that don't know any better and it's never shown a single HP one way or the other. Non race engine builders (and a few so called) have always thought it's some kind of speed secret but the truth of the matter is much less exciting. Will |
