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[Durwood]

Harley Davidson 4.125 drop on cylinders with Mahle 6.6cc dome pistons. CCP came in at 195/195.

[J.D.]

That'll work 

[CVCVORG]

Great numbers with a nice torque curve.

What was the compression on this engine?

[Scott7d]

I took a ride around the block when I picked it up today. It still has the low end to just twist the throttle and pass, or roast the tire if you feel like it (which I didn't do on purpose).

I was zapped for reckless driving back in August so I've been watching my speeds. But hit a couple back roads on my 2 hour drive home and couldn't stop smiling. I'm still getting used to the exhaust. It's so loud at higher rpm that it makes me nervous to really rev it. Just a mental thing I'll get over. It actually smooths out better than I thought it would on the highway. I'm coming from a DX pipe/crushers, so this is definitely different, but in a good way.

I'm actually a distance guy who has a frequent need for speed, and can't stand my buddies winning. Safe to say I gotta pretty nice hot rod touring bike. Thanks again Daren!

[Ridgerunr]

Another fine job Daren. 

[Durwood]

Great numbers with a nice torque curve.

What was the compression on this engine?

CCP is 195/195.

[grofcvo]

Harley Davidson 4.125 drop on cylinders with Mahle 6.6cc dome pistons. CCP came in at 195/195.

That is a winner , what else is done to the bike, did you change injectors and what size , how about cam chest and pump etc need more info want to do upgrade to my cvo 2014 RK .... anny info is appreciated .

[Durwood]

That is a winner , what else is done to the bike, did you change injectors and what size , how about cam chest and pump etc need more info want to do upgrade to my cvo 2014 RK .... anny info is appreciated .

Build details:
CVO heads by WFO Larry
117 SE cylinders, (zero decked)
Mahle 6.6 cc dome pistons
.030" head gasket
HPI 58 throttle body
Marren stage 1 injectors, 5.04 gps
Cycle-Rama 630i cams
S&S Premium lifters
S&S oil pump
S&S crank
D&D Boarzilla with wrapped baffle
Barnett A&S clutch pack
AIM VPC

Assembled, broke in and tuned by Sheffer Performance.

[Durwood]

Another fine job Daren. 

Thanks John.

I took a ride around the block when I picked it up today. It still has the low end to just twist the throttle and pass, or roast the tire if you feel like it (which I didn't do on purpose).

I was zapped for reckless driving back in August so I've been watching my speeds. But hit a couple back roads on my 2 hour drive home and couldn't stop smiling. I'm still getting used to the exhaust. It's so loud at higher rpm that it makes me nervous to really rev it. Just a mental thing I'll get over. It actually smooths out better than I thought it would on the highway. I'm coming from a DX pipe/crushers, so this is definitely different, but in a good way.

I'm actually a distance guy who has a frequent need for speed, and can't stand my buddies winning. Safe to say I gotta pretty nice hot rod touring bike. Thanks again Daren!

My pleasure Scott..Thanks for allowing me to build it.

[Yellow09SERG]

Build details:
CVO heads by WFO Larry
117 SE cylinders, (zero decked)
Mahle 6.6 cc dome pistons
.030" head gasket
HPI 58 throttle body
Marren stage 1 injectors, 5.04 gps
Cycle-Rama 630i cams
S&S Premium lifters
S&S oil pump
S&S crank
D&D Boarzilla with wrapped baffle
Barnett A&S clutch pack
AIM VPC

Assembled, broke in and tuned by Sheffer Performance.

Do you happen to remember the CC of the head?

[Durwood]

Do you happen to remember the CC of the head?

94cc. This build calculated 11.23:1 with the ccp of 203.6 at sea level.

  If planning on doing this build with the CR-630i aim 8-10# high on the ccp because the calculator doesn't take into account the early exhaust valve opening which will also bleed compression similar to the intake valve closing.