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[Heatwave]

Here's the 114 to 117 upgrade chart from the P&A catalog

[Rooster]

So did they actually dyno tune one?

[Heatwave]

So did they actually dyno tune one?

Based on the graph stating "Corrected Rear Wheel HP" I interpret that to mean the engine was dynoed and then they factor in all the losses across the drivetrain to calculate a theoretical HP to the ground at the rear wheel. Probably not exact but I'm guessing it will be pretty close to what well-calibrated dynos will start showing for the M8 bikes.

[LC110]

Cycle Rama ran a stock 107 on their Dyno it is posted on their facebook page.
81 HP/ 99 TQ

https://scontent-ord1-1.xx.fbcdn.net/v/t1.0-9/14064303_10154413037268890_1775630127764030759_n.jpg?oh=a7632f21c78a67dc223dda4545899289&oe=5844314C

[Skipper]

I applaud to MOCO. they managed again!
Of course there will be some problems with engine, or transmission, or clutch. The whole point is that, the "soul" still going on, "body" is just temporary thing, it comes and goes in different shapes. The day when they build "perfect" Harley-Davidson, the "soul" will gone. I've learned the lesson. I own a Harley-Davidson does not matter which one, it's a Harley and that is the whole point.
So MOCO keep going on the "soul" thing, I'm not interest for the "body"

Vladimir

[Heatwave]

Cycle Rama ran a stock 107 on their Dyno it is posted on their facebook page.
81 HP/ 99 TQ

https://scontent-ord1-1.xx.fbcdn.net/v/t1.0-9/14064303_10154413037268890_1775630127764030759_n.jpg?oh=a7632f21c78a67dc223dda4545899289&oe=5844314C

Almost exactly what the MoCo has for the 107 in the dyno charts from the P&A catalog  80hp/100ft-lbs. And the 114 looks like 89hp/110ft-bs at the rear wheel

[kojak]

From the source: ". So now we have one pushrod activating two valves. If you look at the classic design that has this configuration, they put in adjusters. They usually have low adjustment intervals, which are the cost of ownership and a pain in the butt to go in and have stuff done. What we did is that the hydraulic lifters for each pushrod now account for thermal roll from the engine. We have no adjustment. It’s factory set for life. We came up with an arrangement to set for very low lash at the factory and maintain that for the life of the motor."

I was told early on that one of the rocker tips has an adjuster. I sure don't see it in the pics?
I wonder if there is a lash cap on one or both of the valve stems? There has to be something to sync the
valves. No way the valve job is that tight. Lol..

SG

[RedMoon]

Milwaukee-Eight engine 'inside the Factory H-D' video

[TN]

stage III upgrade info

[Heatwave]

Has anyone seen if HD has released a Screaming Eagle Pro Racing Catalog for 2017? I haven't seen one yet but they will have to provide one unless they intend to tell all their race customers they are on their own.

[FLH91]

The HD website shows that the Torque of the 114 is 124 ft/lbs, and the 107 is 113 ft/lbs.

[Heatwave]

The HD website shows that the Torque of the 114 is 124 ft/lbs, and the 107 is 113 ft/lbs.

I believe those numbers are at the crank, not the rear wheel. According to the MoCo P&A dyno charts the 107 is 100ft-lbs and the 114 is 110ft-lbs at the rear wheel.

[sadunbar]

Another thing that bothers me.  They could never even produce a lifter that could bear the strain of a single valve spring and now it's dealing with the strain of two springs?

I am curious of the weight of two small valves vs. one large valve, and also the spring rate of the two current valve springs vs. the spring rate of the old design single valve spring.  But point taken...

[grc]

One of the main benefits of four valve heads is that each valve can be much smaller and lighter and yet in tandem they flow much more than the old bigger single valve.  The lower mass allows lighter valve spring pressures.  Once the cam specs are available I'd expect to see less lift and less radical ramp speeds as well.

Jerry

[sadunbar]

One of the main benefits of four valve heads is that each valve can be much smaller and lighter and yet in tandem they flow much more than the old bigger single valve.  The lower mass allows lighter valve spring pressures.  Once the cam specs are available I'd expect to see less lift and less radical ramp speeds as well.

Jerry

And subsequently less forces applied to lifters...