Here are some dyno test results from a cam install we just did on a 2010 Harley Ultra Limited 103". We installed the Wood's TW6-6 cams on this bike which already had our Jackpot 2/1/2 headpipe, Fuel Moto Stage 1 air cleaner and Dynojet PC-V and gave the bike a full dyno tune. The 103" bike responds very well to these cams with very good Hp/Tq increases. Throttle response is noticeably increased as well. These cams provide a very broad power curve, this combination makes over 100ft lbs of torque from 2650-5000 RPM! with stock compression and it makes power right to 6000 RPM. Overall this overall combination makes 30+ more Hp and +19 more Tq over stock, engine response is hugely improved and the bike runs substantially cooler.

Dyno Chart with Wood TW6-6 cams, Jackpot 2/1/2 head pipe, Jackpot Dyno Tuned mufflers, Fuel Moto Stage 1 air cleaner and Dynojet PC-V



Dyno Chart comparing the stock cams to the Wood TW6-6



Dyno Chart comparing the completely stock bike to the addition of Wood TW6-6 cams, Jackpot 2/1/2 head pipe, Jackpot Dyno Tuned mufflers, Fuel Moto Stage 1 air cleaner and Dynojet PC-V

 

That is friggin amazing. Very nice numbers. I hope we can get similar numbers from your new 2-1. I already have the PowerTube and A/C. Just need the 103, TW6-6, and a PC-V...

Nice work Jamie.

lp

 

Looks good. It may not be possible with TBW, but I would like to see what's going on below 2300 RPM's in the TQ chart. As good as the 6-6's look, the stock cams performed respectfully with the other mods made.

 

What compression ratio is the stock 2010 103" Ultra?

 

The Motor Company specs list the compression is 9.7:1. If you wanted to go a step further this motor would certainly benefit from some additional compression

 

Those are some nice looking numbers.

 

What's the stock cam in the limited..? Is it a 255..?

 

Great work Jamie. I can't wait to get the TW-7's in my bike. If my heads were stock I'd definately go w/ the TW6-6's and your map.

 

I don't know why this rumor persists. No, the stock cam is the same one used in the 96" motors. The 255 is a stage II cam for the 103 motor. The 255 cam profile is unique, and builds torque very early, but is done sooner than most cams as well.

 

easy big fella...wasn't trying to feed a rumor...I was asking 'cause I didn't know.

BTW - I have the 255...but thanks for helping the fix the rumor mill...