more cam info to make you crazy

[grumpyvette]

some good general info

here

look closely at the duration used for each MATCHING rpm range. ALSO KEEP IN MIND THE DCR AND OVERLAP MUST MATCH

look here

these are the valve timeing overlap ranges that are most likely to work correctly

 

trucks/good mileage towing 10-35 degs overlap

daily driven low rpm performance 30-55degs overlap

hot street performance 50-75 degs overlap

oval track racing 70-95degs overlap

dragster/comp eliminator engines 90-115 degs overlap

 

but all engines will need the correct matching dcr for those overlap figures to correctly scavage the cylinders in the rpm ranges that apply to each engines use range.

http://cochise.uia.net/pkelley2/Overlap.html

 

http://cochise.uia.net/pkelley2/DynamicCR.html

 

and keep in mind lower overlap duration and LSAs of 112-115 work better with EFI and I can tell you right now that intake durations not to exceed about 222 degs@.050 (intake duration)are what youll need for a close to stock TPI intakes rpm/tq range

now just to make you crazy, don,t forget that the longer your rods are (closer to the ideal 2:1 rod to stroke ratio) the wider the lsa should be

 

and the longer the stroke the wider the lsa should be

 

http://www.compcams.com/Base/Images/Articles/CC_CC0101-001-2.jpg[/img]

1985,1992,1996 vettes

keep the rubber side down and the

[Guest the_dj]

Now you've gone and made me question my cam choice.

 

Thanks for the info though