103" Twin Cam "SHO" dyno numbers
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Road Warrior
Joined: Nov 2008
Posts: 1,789
Likes: 9
From: Double Oak, Texas
DP open airbox w/hi-flo filter. It puts out 132 RWHP, appox 145 at the crank.
It weighs wet 398 lbs. It is capable of about a 10.25 1/4 mile with a skilled
(not me) rider.
http://www.youtube.com/watch?v=l46EYgisrT4
Banned
Joined: Sep 2008
Posts: 367
Likes: 4
i see thx, i'm a fan of the monster, having one myself. i was under the impression that the stock s4rs had 130hp at the crank, so thx for the update! 1 was at the long beach motorcycle show this weekend and had to keep myself from putting a deposit down on the new 1100s- it's gorgeous!
2nd Gear
Joined: May 2012
Posts: 6
Likes: 0
From: Calgary
Last week the requisite 1,000 miles was reached for my dealer to perform a dyno tune of the 103" engine that my new Fat Bob was modded to when I bought the bike. For sure it is no inline 4 litre bike, or a match for my 145HP Ducati Monser. But the numbers are pretty fine for an antique, air-cooled V-Twin engine.
Hope the columns below stay lined up when posted.
My build is all Screamin' Eagle parts, (exc pipes). CNC ported heads, 50mm throttle bodies w/ hi-flo injectors, 10.5 HTCC pistons, 260 Cams, SE tappets, SE ECU, Heavy breather, D&D Fat Cat 2-1 pipe.
Numbers are at the rear wheel.
Stock 96" Twin Cam......................My 103" SHO
RPM....Torque....RWHP............RPM...Torque..... RWHP
2500...75 ft-lb....38 HP...........2500....80 ft-lb....35 HP
3000...77 ft-lb....45 HP...........3000....86 ft-lb....50 HP
3500...78 ft-lb....52 HP...........3500....96 ft-lb....66 HP
4000...75 ft-lb....56 HP...........4000....100 ft-lb...78 HP An extra 22 ft-lbs over max stock !
4500...70 ft-lb....60 HP...........4500....100 ft-lb...90 HP
5000...65 ft-lb....63 HP...........5000....98 ft-lb.....95 HP
5500...62 ft-lb....63 HP...........5500....98 ft-lb.....103 HP
6000...X.............X................6000....90 ft-lb.....105 HP That's an extra 42 HP over stock !!
6500...X.............X................6500....85 ft-lb.....103 HP
Pleased with the numbers. The bike pulls really hard and just keeps pulling harder as the revs rise. The engine is still loosening up and I expect it will yield a few more ponies.
Hope the columns below stay lined up when posted.
My build is all Screamin' Eagle parts, (exc pipes). CNC ported heads, 50mm throttle bodies w/ hi-flo injectors, 10.5 HTCC pistons, 260 Cams, SE tappets, SE ECU, Heavy breather, D&D Fat Cat 2-1 pipe.
Numbers are at the rear wheel.
Stock 96" Twin Cam......................My 103" SHO
RPM....Torque....RWHP............RPM...Torque..... RWHP
2500...75 ft-lb....38 HP...........2500....80 ft-lb....35 HP
3000...77 ft-lb....45 HP...........3000....86 ft-lb....50 HP
3500...78 ft-lb....52 HP...........3500....96 ft-lb....66 HP
4000...75 ft-lb....56 HP...........4000....100 ft-lb...78 HP An extra 22 ft-lbs over max stock !
4500...70 ft-lb....60 HP...........4500....100 ft-lb...90 HP
5000...65 ft-lb....63 HP...........5000....98 ft-lb.....95 HP
5500...62 ft-lb....63 HP...........5500....98 ft-lb.....103 HP
6000...X.............X................6000....90 ft-lb.....105 HP That's an extra 42 HP over stock !!
6500...X.............X................6500....85 ft-lb.....103 HP
Pleased with the numbers. The bike pulls really hard and just keeps pulling harder as the revs rise. The engine is still loosening up and I expect it will yield a few more ponies.
Thanks!
Outstanding HDF Member
Joined: Apr 2009
Posts: 2,523
Likes: 3
From: Illinois
Actually, that's not correct either. You can go from 88-98 and 96-107 for maximum displacement from the respective 88" and 96" engines by just doing big-bore kits and not other extensive engine work.
Last edited by jeff.georgalas; May 31, 2012 at 04:06 PM.
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