Busy winter work
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Club Member
Joined: Sep 2011
Posts: 247
Likes: 9
From: Anoka,MN
Busy winter work
Finally got done with my build and starting the breakin process.
107 build CP pistons with 6cc domes
Darkhorse plug/ welded crank and timkin coversion. Lefty bearing on the cam side.
Ported heads decked for 88cc with kibblewhite valves and springs good to .650 lift
S&S 585 cams
1.725 rockers on the intake side only
Drag specialties high performance oil pump and new cam plate
55mm HPI/1.8 runners with 4.9 injectors
R&R overflow air filter setup for external breathers
Screamin Eagle manual primary chain tensioner.
1.125 wide drive belt 30/68 pulleys
All the bearings in the motor/primary have been replaced.
Barnett CF clutch disks/ with the stock Harley disks for the 1st and last disk.
Barnett HD clutch spring.
Treated myself to new progressive 444 shocks.
Not sure exactly what I'll do on the breather arrangement. But this will get me on the road for breakin and dyno.
Quick clip of a heat cycle
Elite HDF Member
Joined: Sep 2012
Posts: 3,791
Likes: 57
From: N Texas
That's looks like a really well thought out build!
Those rockers on the intake side increase your lift too right(cannot remember the # you multiply by)?Putting that 1 1/8" belt on is slick, I want to do that too. Are you going to dyno it? Nice work for sure!
Those rockers on the intake side increase your lift too right(cannot remember the # you multiply by)?Putting that 1 1/8" belt on is slick, I want to do that too. Are you going to dyno it? Nice work for sure!
Last edited by HD Pilot; Mar 14, 2015 at 10:55 AM.
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Club Member
Joined: Sep 2011
Posts: 247
Likes: 9
From: Anoka,MN
I got it to the dyno today, She made 121.6hp 119.74tq. Clutch held great.
On a funny note..the computer crashed on the last run. Then they go to print out the sheet and they run out of ink !
I requested and was able to be there for the whole dyno process. That was pretty cool. Learned a wee bit more !
On a funny note..the computer crashed on the last run. Then they go to print out the sheet and they run out of ink !
I requested and was able to be there for the whole dyno process. That was pretty cool. Learned a wee bit more !
HDF Community Team
Joined: Jun 2008
Posts: 4,758
Likes: 953
From: Out West
Nice! That made some good get-up-and-go; in the Castro district of S.F. they'ed call that a nice package 
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Club Member
Joined: Sep 2011
Posts: 247
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From: Anoka,MN
Many thanks to Target64, his build was an inspiration to head down this path. His 107 is incredible.
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Stellar HDF Member
Joined: Jan 2013
Posts: 2,464
Likes: 50
From: Rouses Point, N.Y.
I just started reading your post and said to my self well ole strobe is doing the same build. Well u did a very nice job and your bike sounds awesome. you will be impressed with the performance you have now. was 121/119 in forth gear ?
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Club Member
Joined: Sep 2011
Posts: 247
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From: Anoka,MN
That was a 6th gear run to get those numbers. I'm running a 30/68 combo. At 60mph in 6th gear I'm running 2450 rpm.
I had a local guy do the heads. It was all a hand port job. He does'nt flow the heads either. He mentioned no one want to pay the price for getting the flow work done. I put my faith in his experience. He was skeptical about me picking the HPI 55mm. The results sure changed his mind.
Appears the fatcat perforated baffle must have hurt torque a little.
I was really impressed with how the clutch feels. I still have a great friction zone and she hooks up. And I run formula+ in the primary. Good for the compensator.
Alot of reading/research went into this.
I had a local guy do the heads. It was all a hand port job. He does'nt flow the heads either. He mentioned no one want to pay the price for getting the flow work done. I put my faith in his experience. He was skeptical about me picking the HPI 55mm. The results sure changed his mind.
Appears the fatcat perforated baffle must have hurt torque a little.
I was really impressed with how the clutch feels. I still have a great friction zone and she hooks up. And I run formula+ in the primary. Good for the compensator.
Alot of reading/research went into this.