Thread: Top end cam duration

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read iskyracing cams book on cams the 5 cycle long duration cams for more over lap for better scavenge of the combusbustion in effect making a 5 cycle on a 4 cycle engine but the way i see it is bigger duration and more overlap with no cr is not good but sometimes a bigger engine like a bit more duration on it and if you go to lets say a cam with 104 they come on fast and pull very hard and peak fast and a cam with 112 will may not pull as hard as fast but will be broader i have been working on a new cam for my pump gas engines that like s 115 to 117 lsa it is a big engine and with a cam like this i hope to get a round 900 hp and 800+ tq and if you look it some big block cam that run 800 lift and@.050 298 they will run them at112 cars with a 106 to110 your stall in your trans will work better this was told to me from art carr over 10 years ago