I for one, certainly have no quarrel with compression Ratio rules, because if you are talking true compression ratio, and it's properly measured and enforced, it is absolute. Cam 'Lift' rules, engine 'Vacuum' rules, 'Carburation' rules and of course 'Compression' rules. In order to hold costs down in oval track racing today we have numerous 'RULE' classes. (This is the tech tip to check out if you have to deal with Vacuum rules at your local track!)Ĭompression Rules: 'The Joker in the Deck' COMING SOON! 2009 VACUUM RULES: What affects engine vacuum and why!.2008 Roller Lifters: Keep 'Em Rolling Longer.2006 Stainless Valves: Do you really need them?.2005 Rod Lengths/Ratios: Much ado about almost nothing!.2004 Intake Restriction & over scavenging: 'Waste not, Want not!'.2003 Longer Exhaust Duration: Is this really necessary?.2002 What really causes intake reversion? Once and for all let us have the Truth!.2001 Compression Rules: 'The Joker in the Deck'.Unlike some others in the racing industry, I will make no assumptions, nor will I postulate any theory unless I have clearly labeled it as such. And just so there is no misunderstanding, I will limit the subject matter to those issues with which I have significant personal knowledge and experience. We'll be discussing subjects you won't read about in the magazines, but are nevertheless in great need of clarification for the racing community at large. This first installment (in no particular order of magnitude) will contain the most common misconceptions in High Performance engine building today. Book One of Tech Tips 2000TM features The Modern Myths of High PerformanceTM.

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