Sifton Cam?
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Tourer
Joined: Aug 2010
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From: Wellsburg, IA
Sifton Cam?
I started my EV27 install last night. After pulling the stock cam out, I noticed it wasn't stock. It had Sifton stamped on the gear and 143 stamped on the rear intake lobe. Looking at the 2 cams, the EV27 is definately more aggressive looking, but just wondering how they compare. I can't really find much info. Any guesses?
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Joined: Aug 2008
Posts: 5,081
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From: Ohio
Sifton 143
20 35 46 14 235 240 34 97.5 106 101.75 0.500 0.500
Ev27
20 36 44 16 236 240 36 98.0 104 101 0.495 0.495
The numbers are close, the Sifton would be an improvement in any bike over the stock cam. The second number is intake closing and the Sifton is still a compression builder but the wildcard is the EV27's squared off lobes and has a slight edge. The EV27 design is the same as the Woods and works but attention is needed to pinion gear clearance/push rod adjustments when installing the aggressive design EV27 or clackity-clack.
20 35 46 14 235 240 34 97.5 106 101.75 0.500 0.500
Ev27
20 36 44 16 236 240 36 98.0 104 101 0.495 0.495
The numbers are close, the Sifton would be an improvement in any bike over the stock cam. The second number is intake closing and the Sifton is still a compression builder but the wildcard is the EV27's squared off lobes and has a slight edge. The EV27 design is the same as the Woods and works but attention is needed to pinion gear clearance/push rod adjustments when installing the aggressive design EV27 or clackity-clack.
Last edited by 1997bagger; Jan 12, 2011 at 11:06 AM.
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