Originally Posted by dyna mo

nice! intersting that the hp at 2500rpm is a bit lower but the torque is increased over stock

btw, which monster cranks out 145hp?

Originally Posted by Centerline

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.

Originally Posted by Dawg Rider

96 to 103 = 88 to 95.