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Hot Saws
Saw Building 101
660 clone port timing numbers for milling (torque)
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<blockquote data-quote="Lightning Performance" data-source="post: 8216453" data-attributes="member: 180607"><p>Um, first off why do you even care where the top end is? Four-stroke? Or falls off?</p><p></p><p>I see no point is using that as reference point when milling.</p><p></p><p>I have 22° blowdown it was 24 and also tested at 20.</p><p></p><p>Your intake is done at 82 unless you address air inlet issues. I now run an 87 intake and yes it's a bit too long for milling under 10k. The next six jugs get a major compression bump by filling in the chamber area. One needs a sparkplug relocation just to see how that goes. 0.035 is bit tight near the plug strap. It will likely be moved 0.040 and run a gapless type.</p><p></p><p>Did you taper the exhaust port window at all or hog out the port area?</p><p>What radius did you use on the port windows?</p><p></p><p>I'm always looking for something different from my stuff.</p></blockquote><p></p>
[QUOTE="Lightning Performance, post: 8216453, member: 180607"] Um, first off why do you even care where the top end is? Four-stroke? Or falls off? I see no point is using that as reference point when milling. I have 22° blowdown it was 24 and also tested at 20. Your intake is done at 82 unless you address air inlet issues. I now run an 87 intake and yes it's a bit too long for milling under 10k. The next six jugs get a major compression bump by filling in the chamber area. One needs a sparkplug relocation just to see how that goes. 0.035 is bit tight near the plug strap. It will likely be moved 0.040 and run a gapless type. Did you taper the exhaust port window at all or hog out the port area? What radius did you use on the port windows? I'm always looking for something different from my stuff. [/QUOTE]
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