S&S Cycle - Understanding Cam Specifications - Part 2B

Video 2A/B/C explores the “Big Three”, the three most important specs to consider when selecting a cam grind. This is the most tech heavy of the videos, and if you only watch one of the videos, this should be the one.
Understanding Cam Specifications Part 1-Engine/Camshaft: How it Works
• S&S Cycle - Understand...
Understanding Cam Specifications Part 2A-Cam Lift
• S&S Cycle - Understand...
Understanding Cam Specifications Part 2B-Cam Duration
• S&S Cycle - Understand...
Understanding Cam Specifications Part 2C-Cam Intake Closing Time
• S&S Cycle - Understand...
Understanding Cam Specifications Part 3-Lesser Known Cam Specs
• S&S Cycle - Understand...

[@Stormwhopper]

Excellent explanation. This dude deserves a rise!

[@pietrogilbo697]

Man I would like to have your motorcycle engine brain.Great help to us non mechanics.Thanks.

[@daleezzell1385]

I stumble upon these and couldnt find a better way to explain it all! Love the videos and will watch many more! Im waiting on some lifter cuffs now.

[@SSCycleInc]

Thanks Dale!

[@hotstove6539]

Thank you Sir. I'll be watching and taking copious notes.

[@aharleyguy7333]

Nice; you did a great job in explainig

[@o0Hotiron0o]

Thank you ;)

[@cerseonbrassmann5222]

Thank you sir. It is very informative. I have a few questions, as my engine is a one cylinder engine with 98,4mm stroke And 130,2 mm bore At a compression ratio of 7,3:1 I want to convert the OHV 2 valve to a OHV 4 valve and the cam duration is pretty much the only thing that I'm unaware of to use. The old one isn't available and I wanted to ask, what would be the standard for such ratio and what would be the best idea for it, as the engine is a kickstarted monster which I want to give the fitting designs. A midrange probably?

[@flywayne9362]

Very well done thank you

[@vtwinpower1903]

I have a 03 ultra with a A S&S 106 stroker in her, heads r done 55mil throttle body nitrous, chain drive n airshifter. It didnt start out this way but she ended up like this lol. I have a 585 cans in her, I ride her on the st but I also like to hotrod it, is there a better performance cam to run or is this the limit for it other then a bigger motor? Next motor will b a 143 dragon. I'm a old bike drag racer that's not ready to pac it in totally yet.😎

[@SSCycleInc]

You could go bigger Cam, but you'll lose streetability (more power up top, less on the bottom).

[@twitterjackedmitchell8096]

Best low end Torque &HP for 95 SE with SE heads??

[@joereyes5071]

Do you have any applications for the HD XR1200?

[@SSCycleInc]

Unfortunately, we do not

[@thebeardedyorkshireman8368]

I have a Milwaukee 8 107ci engine and I am looking for a new cam. But confused with the 465 or 475 cams?

[@SSCycleInc]

The S&S 465 cam is designed to produce torque lower in the RPM range than the 475. A loaded bagger pulling out onto the highway would want more torque (and therefore would perform best with a 465 cam), where a lighter Softail would likely be happiest with a 475 that produces its power higher in the RPM range.

[@thebeardedyorkshireman8368]

I have a RKS and don’t really go touring its mainly solo riding but 30% pillion. I am looking at eventually doing a 124ci conversion so is there a cam that would be better that will ease the upgrade later?

[@SSCycleInc]

@@thebeardedyorkshireman8368 Either would work well. 124 works best with a 550 cam. www.sscycle.com/feature/performance-kits/power-package/124-power-package-m8

[@jimwortham8634]

Hate to say it but H&D could learn a lot from S&S

[@SSCycleInc]

We do not hate that you say that!

[@thomasmarchese2808]

The problem with the motor company is accountants. They’re trying to produce bikes that fit as many people and purposes while minimizing the cost of production. So I/we understand why harley does what it does. Even though it’s mostly crap from the show room. As i like to say, a $40k bike that started as a frame and swing arm and then got whatever suspension, drive train, fuel management ect that suits your style, purpose and budget is worth far more than a $30k bike that you bought off the show room floor in the OEM production design.