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Your cnc head work seems to be worth a lot. What is the spec on the heads, are they big valve? what's the cost of an exchange pair? Awesome power by the way.
S&S cylinders (4.280) Mahle pistons (4.280) with APC coating 12.1:1 compression HD Street Performance heads (stock valves) Rocket 544 cam Woods Alpha series lifters HPI 62 mm throttle body with 6.1 injectors D&D Billet Cat with 2.5" Vortex baffle Adjustable rockers Zero deck Lifter cuffs 8 lobe pump assembly 10 disk updated clutch AIM SDR with heavy springs and 2 shims
Power Vision
Even with the heavy springs and shims the clutch started slipping around 2500 and didn't settle down until the AIM SDR started to kick in a little over 3200.
S&S cylinders (4.280) Mahle pistons (4.280) with APC coating 12.1:1 compression HD Street Performance heads (stock valves) Rocket 544 cam Woods Alpha series lifters HPI 62 mm throttle body with 6.1 injectors D&D Billet Cat with 2.5" Vortex baffle Adjustable rockers Zero deck Lifter cuffs 8 lobe pump assembly 10 disk updated clutch AIM SDR with heavy springs and 2 shims
Even with the heavy springs and shims the clutch started slipping around 2500 and didn't settle down until the AIM SDR started to kick in a little over 3200.
Ruff
Good build - a few questions:
What tuner? How are the street manners? What year, model Harley? How many miles on it since the build?
Thanks
Good build - a few questions:
What tuner? How are the street manners? What year, model Harley? How many miles on it since the build?
Thanks
2017 FLTRXS
Power Vision tuner.
I'm picking it up tomorrow from the tuner. Only has a few hundred miles since the build. Was easy to ride before the tune. The tuner says it has great street manners when he test rode it.
Even with the heavy springs and shims the clutch started slipping around 2500 and didn't settle down until the AIM SDR started to kick in a little over 3200.
Great numbers on that build.
Jamie at Fuelmoto has said that he had trouble with clutch slippage on high torque motors when he used primary lube that had synthetics in it. It might be worth checking if what you're using has synthetics. Something else that might help is the Rekluse Torq-Drive clutch. It has 15 friction plates and you can use the SDR with it. Might be worth considering.
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