Head porting
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Road Master
Joined: Oct 2007
Posts: 925
Likes: 56
From: Memphis, TN via NoVA
Head porting
Just purchased a 2015 CVO Street Glide with 1871 miles. It is a stock 110" CVO motor but for Rinehart slip-ons. I have roughly 1.5-2K to upgrade the motor and get as much torque/hp out of it as I can within that budget. Everything I have researched and read on here is that a cam swap, exhaust upgrade (get rid of stock head pipes), and tuner will not get me the best gains without getting the compression up.
Given my budget, the following questions under the assumption that I am well versed in installing the new cams, lifters, and pushrods.
1). Will 1.5-2K be enough to get heads ported sufficiently and purchase the cam and components needed to take advantage of the porting?
2). If $$ aren't sufficient, what is the best use of the $$ to get max performance and then heads ported next winter?
I ride 1-up 75% of the time and have a heavy hand, routinely getting close to red line while banging through the gears: whether going light to light, or rolling her up on the interstate, or on country back roads and sweepers.
Thanks in advance for the opinions and suggestions
Given my budget, the following questions under the assumption that I am well versed in installing the new cams, lifters, and pushrods.
1). Will 1.5-2K be enough to get heads ported sufficiently and purchase the cam and components needed to take advantage of the porting?
2). If $$ aren't sufficient, what is the best use of the $$ to get max performance and then heads ported next winter?
I ride 1-up 75% of the time and have a heavy hand, routinely getting close to red line while banging through the gears: whether going light to light, or rolling her up on the interstate, or on country back roads and sweepers.
Thanks in advance for the opinions and suggestions
HDF Community Team
Joined: Jun 2006
Posts: 12,763
Likes: 2,597
From: san antonio
Short answer is yes, if you are turning the wrenches.
The 110 CVO motors are notorious for eating lifters so be sure to include new lifers, preferably Johnson Hy-Lifts from WFO Larry, as part of the plan. Might be useful to bring up the BigBoyz compression calculator and investigate cams, chamber and piston dome volume, etc. to hit a CCP target of 195-200psi.
The 110 CVO motors are notorious for eating lifters so be sure to include new lifers, preferably Johnson Hy-Lifts from WFO Larry, as part of the plan. Might be useful to bring up the BigBoyz compression calculator and investigate cams, chamber and piston dome volume, etc. to hit a CCP target of 195-200psi.
Stellar HDF Member
Joined: Sep 2007
Posts: 2,434
Likes: 658
From: Vancouver Island B.C.
If it was me I would add changing the valve springs while doing cams, lifters and springs. a little skim cut on the heads to go with the right cam will net nice gains. Once you port the heads then I'd be looking at higher compression pistons and a different cam. Then there's the option of the 117 drop on kit. It's a slippery slope and I like spending your $$. 
Thread Starter
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Road Master
Joined: Oct 2007
Posts: 925
Likes: 56
From: Memphis, TN via NoVA
If it was me I would add changing the valve springs while doing cams, lifters and springs. a little skim cut on the heads to go with the right cam will net nice gains. Once you port the heads then I'd be looking at higher compression pistons and a different cam. Then there's the option of the 117 drop on kit. It's a slippery slope and I like spending your $$.
In lieu of that, I'll just do the cam/bearing/lifters/pushrods/springs and exhaust myself and head work will have to wait until the winter.
Last edited by ShoreRider; Feb 22, 2024 at 04:45 AM.
Seasoned HDF Member
Joined: Oct 2019
Posts: 10,667
Likes: 7,258
From: OH
Inquire of the lead time at Hillside , Zippers or other reputable shop that does this work routinely.
Last edited by djl; Feb 22, 2024 at 09:11 AM.
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,048
Likes: 990
https://suzukicycles.com/sportbike/2023/hayabusa
take your money and go trade
it will take the abuse better than the hd.
remember this, the more you do the more unreliable the hd will become. i have seen some with such a rocking motion, the rubber mounts need replacing regularly. sadly only to be beaten down by a machine 1/2 its size.
take your money and go trade
it will take the abuse better than the hd.
remember this, the more you do the more unreliable the hd will become. i have seen some with such a rocking motion, the rubber mounts need replacing regularly. sadly only to be beaten down by a machine 1/2 its size.
Seasoned HDF Member
Joined: Oct 2019
Posts: 10,667
Likes: 7,258
From: OH
https://suzukicycles.com/sportbike/2023/hayabusa
take your money and go trade
it will take the abuse better than the hd.
remember this, the more you do the more unreliable the hd will become. i have seen some with such a rocking motion, the rubber mounts need replacing regularly. sadly only to be beaten down by a machine 1/2 its size.
take your money and go trade
it will take the abuse better than the hd.
remember this, the more you do the more unreliable the hd will become. i have seen some with such a rocking motion, the rubber mounts need replacing regularly. sadly only to be beaten down by a machine 1/2 its size.
I think you intended this for the thread inquiring about Stunting
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Stellar HDF Member
Joined: Mar 2012
Posts: 2,008
Likes: 596
From: Columbus, OH
I have used this cam before with good results, of course a proper tune is necessary
https://www.zippersperformance.com/r...n-cam-engines/
https://www.zippersperformance.com/r...n-cam-engines/
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Thread Starter
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Road Master
Joined: Oct 2007
Posts: 925
Likes: 56
From: Memphis, TN via NoVA
https://suzukicycles.com/sportbike/2023/hayabusa
take your money and go trade
it will take the abuse better than the hd.
remember this, the more you do the more unreliable the hd will become. i have seen some with such a rocking motion, the rubber mounts need replacing regularly. sadly only to be beaten down by a machine 1/2 its size.
take your money and go trade
it will take the abuse better than the hd.
remember this, the more you do the more unreliable the hd will become. i have seen some with such a rocking motion, the rubber mounts need replacing regularly. sadly only to be beaten down by a machine 1/2 its size.
Answer the damned questions I asked or STFU. I didn't ask for opinions on what else to buy and besides, I don't bend that way anymore to straddle a 'Busa. I was drag racing Suzuki GS-1150ES's punched out to 1350cc's and road racing GSX-R1100 crotch rockets before your dad was able to produce the DNA needed to spawn you. Christ...and you're in a Harley Forum responding to a thread like this for what reason? And what value did your response add?
Last edited by ShoreRider; Feb 22, 2024 at 10:17 AM.
