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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.
We over-looked that cam until January of 2011, and in a 98" with our Stage II Heads, 10.0 cr, Rhinehart duals, ported t/body, it went off at 108/115, std, tuned in Illinois.
Scott
In my quest to figure which cams to go with when I do. I've talked to 2 Harley shops and 3 independent shops in what they think. One HD shop says go with 204's, the other HD says Woods 777. Two of the three independent shop's recommended the S&S 570, the third just said we'll do whatever you want.
Actually I wished I lived closer to Kirby or Scott, I'd just pull up, unload the bike off the trailer. Just say Hook me up right and call me she's done. LOL
Me too! but at least we can get the info they provide.... eventually i WILL BE DOING 107 AND HEADWORK,..... ill just have to ship my stuff. gotta do some home improvements so the wife stays happy before i can fund my habit.
We were more focused on other cams then, and came to the stark realization that we can make almost any cam perform to it's true potential, surrounded with the proper components/heads.
Scott
In my quest to figure which cams to go with when I do. I've talked to 2 Harley shops and 3 independent shops in what they think. One HD shop says go with 204's, the other HD says Woods 777. Two of the three independent shop's recommended the S&S 570, the third just said we'll do whatever you want.
Actually I wished I lived closer to Kirby or Scott, I'd just pull up, unload the bike off the trailer. Just say Hook me up right and call me she's done. LOL
you've got steve from GMR in texas someplace,he can hook you up
We were more focused on other cams then, and came to the stark realization that we can make almost any cam perform to it's true potential, surrounded with the proper components/heads.
Scott
That is the real trick, knowing what works in a given combo. I keep looking at cams for TC's and I keep comparing them to my favorite shovel and Evo cams, the Andrews AB and S&S 561, trying to remember how they performed. Then again I didn't have this many cubes to play with........
SnS 570s will make good midrange peak tq and hp for the intake duration they have.. Due to the long exhaust duration, TQ can be pretty bad on the 2000 to 2500 range on builds with high flowing exhaust ports and exhaust systems.. The throttle will feel sluggish then change behavior as 2500-3000 is crossed and start pulling hard when using partial throttle.. If this sounds like it it might bother you, go for a cam with about the same intake duration with less exhaust duration. 570s seem to work better if there is an anti reversion step in the exhaust port and / or smaller exhaust valves like what SnS uses in their heads..
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