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Lobe sep

General engine tech -- Drag Racing to Circle Track

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rocketracer380
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Lobe sep

Post by rocketracer380 » Sat Oct 05, 2019 9:02 am

Same cam with narrower lobe sep 108 vs 110 its a small block olds with stock heads and pump gas.any power band difference ?

Carnut1
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Re: Lobe sep

Post by Carnut1 » Sat Oct 05, 2019 9:32 am

rocketracer380 wrote:
Sat Oct 05, 2019 9:02 am
Same cam with narrower lobe sep 108 vs 110 its a small block olds with stock heads and pump gas.any power band difference ?
Easy way to look at lobe center angle. The better the heads the wider the centers can be for the same rpm. So Olds heads are not great the tighter centers will probably work better except maybe the very top end where the wider lc will be equal. With only 2 degrees difference in lc the power difference will not be that much. I would try the tighter lc.
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