Is This Normal ???
Thread Starter
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Ultimate HDF Member
Joined: Dec 2006
Posts: 7,773
Likes: 7
From: Central Oklahoma
Is This Normal ???
I've got an '07 RKC with V&H Dresser Duals, Screaming Eagle A/C and a PCIII USB. Now that I've got about 1500 miles on it, I decided to see what it would would do. It pulls like a freight train up to about to 105 mph and then kinda peters out from there to 120 mph. Is this normal? Should I get a dyno tune?
Grand HDF Member
Joined: Apr 2005
Posts: 4,022
Likes: 3
From: Hudson Valley- NY
RE: Is This Normal ???
I doubt that you'll be riding at 105+ much so I wouild not worry about it. What's probably happening is that the torque and HP curve flatten out or even drop at the higher rpm and gear range, which would account for the drop in acceleration and power you describe.
Seasoned HDF Member
Joined: Jun 2006
Posts: 30,860
Likes: 32,730
From: King George, VA
RE: Is This Normal ???
I think DGlide is right about the drop off of the power curve. Sorta like having your engine get smaller when ya get over 105mph. I think that falls into the catagory of the speed of light. As you approach it, time slows down.
Outstanding HDF Member
Joined: Nov 2006
Posts: 2,115
Likes: 1
From: CA
RE: Is This Normal ???
It's definitely the rev limiter!
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Road Master
Joined: Jan 2007
Posts: 960
Likes: 14
From: Oklahoma
RE: Is This Normal ???
That seems about right for what I have experienced on all my bikes.
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Thread Starter
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Ultimate HDF Member
Joined: Dec 2006
Posts: 7,773
Likes: 7
From: Central Oklahoma
RE: Is This Normal ???
I've got the rev limiter enabled and I never hit it. I simply backed off when I pegged the speedometer. I just wanted to see what the beast would do. 