Sportster Models 883, 883 Custom, 1200 Custom, 883L, 1200L, 1200S, 1200 Roadster, XR1200, and the Nightster.
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My dyno results

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  #1  
Old 08-22-2018, 03:02 PM
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mrhammer2u
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Default My dyno results

I was NOT expecting this. The before is with the FP3 map provided by V&H and then thoroughly auto tuned for my below mods. Bike ran good, so I thought.

2 into 1 Bobcat
DK 636 A/C
Andrews N4 cams

He said power was still building at 6400rpms but he didn't want to push it cause I have stock springs. Not too shabby for a Stage 1 with mild cam.

I know the N4s can rev high but I told him I usually shift about 5500 because it felt like the valves were starting to float. He said,..."no, it was just a bad tune."

 
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Old 08-22-2018, 05:52 PM
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Awesome, looks great! That's a 1200 with N4s? Strong motor for sure.

John
 
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Old 08-22-2018, 06:02 PM
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Originally Posted by John Harper
Awesome, looks great! That's a 1200 with N4s? Strong motor for sure.

John
Yes. Stock 1200 displacement and compression. If I could do it again I may have gone with Hammer cams. I think his Crush 560? The N4s are noisey.
 
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Old 08-23-2018, 12:02 PM
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Great job! I wouldn’t be afraid to spin in up to 7000rpms. I’m pretty sure 1200 rubbermount springs are good to 7. Congrats
 
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