best cams for 110 screaming eagle
Seasoned HDF Member
Joined: Jun 2017
Posts: 5,315
Likes: 4,272
From: Granville New York
I wont give you any advice on the motor work itself...youre getting plenty of good advice you already dont want to hear lol...but i will say this...wait...wait until after sturgis. Youre trying to rush and by doing that you're going throw parts at it just to get it done. Will it be better than stock? Maybe maybe not. There are guys on here that make a living building these motors with known combinations that are dependable and get you real results. Is your bike running now? Yes??? Just spend the rest of the summer doing research, get a plan in place...in the fall start buying parts...winter start your build...spring...spank all your buddies.
Road Master
Joined: Apr 2007
Posts: 1,216
Likes: 242
From: Northern O H I O
I wont give you any advice on the motor work itself...youre getting plenty of good advice you already dont want to hear lol...but i will say this...wait...wait until after sturgis. Youre trying to rush and by doing that you're going throw parts at it just to get it done. Will it be better than stock? Maybe maybe not. There are guys on here that make a living building these motors with known combinations that are dependable and get you real results. Is your bike running now? Yes??? Just spend the rest of the summer doing research, get a plan in place...in the fall start buying parts...winter start your build...spring...spank all your buddies.
Road Master
Joined: Apr 2007
Posts: 1,216
Likes: 242
From: Northern O H I O
Decision made on CAM - TW-555
Based on discussion with Fuel Moto, I'll be going this route after Sturgis. Will acquire their 107" kit with these CAMs and will also throw in a set of .585 springs along w/headwork.
Hopefully I can get it done in time to ride a bit before the season ends here in Ohio.
Based on discussion with Fuel Moto, I'll be going this route after Sturgis. Will acquire their 107" kit with these CAMs and will also throw in a set of .585 springs along w/headwork.
Hopefully I can get it done in time to ride a bit before the season ends here in Ohio.
Last edited by xmen9c; Jun 25, 2020 at 08:54 AM.
HDF Community Team
Joined: Jun 2006
Posts: 12,776
Likes: 2,607
From: san antonio
I wont give you any advice on the motor work itself...youre getting plenty of good advice you already dont want to hear lol...but i will say this...wait...wait until after sturgis. Youre trying to rush and by doing that you're going throw parts at it just to get it done. Will it be better than stock? Maybe maybe not. There are guys on here that make a living building these motors with known combinations that are dependable and get you real results. Is your bike running now? Yes??? Just spend the rest of the summer doing research, get a plan in place...in the fall start buying parts...winter start your build...spring...spank all your buddies.
Road Master
Joined: Apr 2007
Posts: 1,216
Likes: 242
From: Northern O H I O
Just talked to my wrench and the TW-555 would likely require compression releases in my heads. The research continues as I would prefer not to do that. S&S Easy Starts on the radar.
S&S MR103 - Easy Start
S&S Site:
"MR103 Camshaft Kit designed for '06 HDŽ Dyna and 2007-'16 big inch engines with intake and exhaust modifications. Designed as bolt-in cams for 103 CID engines with stock 9.7:1 compression ratio up to 10.5:1. Works well with stock, un-ported heads, but is great for S&S CNC ported heads. More power across the rpm range best results form 2500-5500 rpm."
Fuel Moto Site:
"very strong horsepower & torque, great overall balance for riders looking for linear power gains. Excellent curve."
S&S MR103 – 97.03Hp/112.72Tq
Slight dip out the gate but CAMs are always at or over 100ft lbs of torque. I think we have a winner!
S&S MR103 - Easy Start
S&S Site:
"MR103 Camshaft Kit designed for '06 HDŽ Dyna and 2007-'16 big inch engines with intake and exhaust modifications. Designed as bolt-in cams for 103 CID engines with stock 9.7:1 compression ratio up to 10.5:1. Works well with stock, un-ported heads, but is great for S&S CNC ported heads. More power across the rpm range best results form 2500-5500 rpm."
Fuel Moto Site:
"very strong horsepower & torque, great overall balance for riders looking for linear power gains. Excellent curve."
S&S MR103 – 97.03Hp/112.72Tq
Slight dip out the gate but CAMs are always at or over 100ft lbs of torque. I think we have a winner!
Last edited by xmen9c; Jun 25, 2020 at 12:00 PM.
Grand HDF Member
Joined: Sep 2017
Posts: 4,359
Likes: 1,219
From: Dubuque, IA
Just talked to my wrench and the TW-555 would likely require compression releases in my heads. The research continues as I would prefer not to do that. S&S Easy Starts on the radar.
S&S MR103 - Easy Start
S&S Site:
"MR103 Camshaft Kit designed for '06 HDŽ Dyna and 2007-'16 big inch engines with intake and exhaust modifications. Designed as bolt-in cams for 103 CID engines with stock 9.7:1 compression ratio up to 10.5:1. Works well with stock, un-ported heads, but is great for S&S CNC ported heads. More power across the rpm range best results form 2500-5500 rpm."
Fuel Moto Site:
"very strong horsepower & torque, great overall balance for riders looking for linear power gains. Excellent curve."
S&S MR103 97.03Hp/112.72Tq
Slight dip out the gate but CAMs are always at or over 100ft lbs of torque. I think we have a winner!
S&S MR103 - Easy Start
S&S Site:
"MR103 Camshaft Kit designed for '06 HDŽ Dyna and 2007-'16 big inch engines with intake and exhaust modifications. Designed as bolt-in cams for 103 CID engines with stock 9.7:1 compression ratio up to 10.5:1. Works well with stock, un-ported heads, but is great for S&S CNC ported heads. More power across the rpm range best results form 2500-5500 rpm."
Fuel Moto Site:
"very strong horsepower & torque, great overall balance for riders looking for linear power gains. Excellent curve."
S&S MR103 97.03Hp/112.72Tq
Slight dip out the gate but CAMs are always at or over 100ft lbs of torque. I think we have a winner!
Well, I guess FM's dyno does have a dip there with the 570s too. That's a product of cam timing and exhaust called reversion. I don't have that dip with the 570s.
The MR103 is a good cam. You'll be happy. They're nearly identical in the power curve. I like the added exhaust duration of the 570s to help with cooling which is an issue how I ride. MR103 97/112 , 570s 98/110
Last edited by 60Gunner; Jun 25, 2020 at 02:53 PM.
Road Master
Joined: Apr 2007
Posts: 1,216
Likes: 242
From: Northern O H I O
Thanks! I have the Dk Customs Torque Inserts in my mufflers (specifically there to prevent reversion and increase throttle response). So, maybe this CAM will be fine with those and everything else when all said and done.
Road Master
Joined: Jan 2017
Posts: 866
Likes: 248
From: N.Y.C
Just talked to my wrench and the TW-555 would likely require compression releases in my heads. The research continues as I would prefer not to do that. S&S Easy Starts on the radar.
S&S MR103 - Easy Start
S&S Site:
"MR103 Camshaft Kit designed for '06 HDŽ Dyna and 2007-'16 big inch engines with intake and exhaust modifications. Designed as bolt-in cams for 103 CID engines with stock 9.7:1 compression ratio up to 10.5:1. Works well with stock, un-ported heads, but is great for S&S CNC ported heads. More power across the rpm range best results form 2500-5500 rpm."
Fuel Moto Site:
"very strong horsepower & torque, great overall balance for riders looking for linear power gains. Excellent curve."
S&S MR103 – 97.03Hp/112.72Tq
Slight dip out the gate but CAMs are always at or over 100ft lbs of torque. I think we have a winner!
S&S MR103 - Easy Start
S&S Site:
"MR103 Camshaft Kit designed for '06 HDŽ Dyna and 2007-'16 big inch engines with intake and exhaust modifications. Designed as bolt-in cams for 103 CID engines with stock 9.7:1 compression ratio up to 10.5:1. Works well with stock, un-ported heads, but is great for S&S CNC ported heads. More power across the rpm range best results form 2500-5500 rpm."
Fuel Moto Site:
"very strong horsepower & torque, great overall balance for riders looking for linear power gains. Excellent curve."
S&S MR103 – 97.03Hp/112.72Tq
Slight dip out the gate but CAMs are always at or over 100ft lbs of torque. I think we have a winner!
Last edited by Sparky357; Jun 25, 2020 at 03:17 PM.
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