Looking for the stock horsepower number for the 2008 Fat Bob as well as if anyone has the hp numbers with a SE Stage 1 breather and Rush 2.0 slipons...

 

Stock your probably looking at 64hp & 84tq. Stage 1 usually adds 10-14 hp&tq . To get the most out of it, look into a tuner and a dyno.

 

SE intake and rush slipons... 70-72 HP.

 

not that I want to hijack but I was wondering the HP numbers on a Street glide Screamin eagle?

 

Are these numbers at the crank or at the rear tire?

 

I had my fxdc dynoed before and after the stage 1,stock was 64hp & 84tq at the rear wheel. Stage 1=SE heavy breather,V&H big radius 2-2 w/bct baffles,SERT= 76hp & 93tq. But Rounder's #'s were a bit higher. Dyna105SE I think your stock 110" was 87-89hp & 94tq. When I was having my motor done I was talking to the service manager about stock #'s on the SE models. He showed me a dyno sheet from a '08 dyna that was recently done and was surprised at the #'s. Thought they would of been a little higher.

 

I posted the below numbers a few days ago. A stock 96" Twin cam yields the numbers (at rear wheel) that are shown on the left.
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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

 

somehow I thought my stock tq rating was higher in the user manual. However that was more then likely at the engine and not rear wheel numbers

 

Yep, just like auto manufacturer's, H-D reports crank torque numbers. Typically theres a 10-20% loss to the drivetrain. Still, many members here have awesome 103 builds that will push you up around 90-100ft/lbs at the wheel for a reasonable amount of cash.

Chris in CT

 

My '08 Fat Bob with Rush 1.75" slip-ons, SE High-Flow Air Cleaner, and SE Pro Super Tuner resulted in 73.02HP and 84.17TQ. Little disappointed in the torque numbers.