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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
I always thought the Narrower the LSA the sooner the torque would come on. The 9B is at 105* compared to the 625's at 108.75*
The way I learnt it was that Narrow LSA cams have the potential of higher peak torque. Wider LSA generate more torque over a wider power band. When you say:
I do know that the 9b carries a lot of area under the torque curve.
I think wider power band. If you said it would be a torquer I'd agree that the 9B will likely generate more torque. Still, IMO, I consider cams in the 105 and up and wider LSA cams. and ones in the 102 and less, narrow.
Anyway wide LSA is what I prefer. Nice wide power band for rolling through the tight stuff.
Larry was right on about the Tapmagic aluminum. Looks crappy due to me running a vacuum to clean out the swarf but was real smooth. No fuz, Cut with a standard 432 tpg insert.
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