Quote:
Originally Posted by Flash68
Had a great hour with Mike B the shop today. Man I learn a ton there.
We talked cams in detail and he is a big believe in these oversized base circle cams, either 50 or 55mm for SBC. He showed me a shelf Comp Cams Mopar cam with standard base circle next to one he designed and had cut with a monster base circle (don't know Mopar sizes) but the difference was staggering. And what he said that was really staggering was the larger one made 60 more hp on the dyno. No other changes. Same cam specs.
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I don't get this? How does changing the base but not changing the cam specs gain 60 hp? Was he saying that just having the large roller bearing surface frees up that much HP? Any engine experts able to explain this?