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The numbers do not tell the whole story. The ramp rates are also very different between the two cams. The Wood cam opens and closes quicker and is a more agressive profile even though the numbers appear similar. That is the reason for the famed Wood cam noise, as compared to other cams. I have never seen a back to back run with the 570 and the TW-6, but my guess is the 6 will make better power earlier and may fall off a little sooner, as well. Overall peak power, I would guess, would go to the Wood cams by a pretty decent margin. That being said, I am not sure I would use a TW-6H in a 117 inch motor. I would personally say the 8 is the minimum I would use in a 117, with the 9 series being even better with good flowing heads.
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2002 NightTrain 117 inch
R&R Stage V Heads (83cc), JE Flat Tops (11.5:1), TR650G Cams, Delkron Cam Plate, Fueling Oil Pump, S&S Roller Rockers, "B" Lifters with limiters, Rivera Brute III Extreme, Mik. 48/Wood Air Cleaner, D&D Black Low Cat, Baker OD6 "R" Ratio, .80 OD
Last edited by nighttrain67 : 01-05-2009 at 08:06 AM.
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