geared cams

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Jun 4, 2007 | 02:33 PM

jgallemore

Thread Starter

Stage II

Joined: Jun 2007

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geared cams

Any expeerience with this? Just went to a 2 into 1 exhaust on a 2006 Ultra Classic with a 95" motor with SE 203 cams. Bought the race tuner and had bike dyno tuned. Am going to install geared cams with as close as possible, the same size cams. Am I going to need a new dyno tune?

Jun 4, 2007 | 07:24 PM

cardboard

Elite HDF Member

Joined: Nov 2006

Posts: 3,909

Likes: 6

From: Livingston, Texas

RE: geared cams

Why spend the extra money on the gear drive cams ?

Jun 4, 2007 | 08:27 PM

Stellar HDF Member

Joined: May 2005

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From:

RE: geared cams

No, you will not need a new dyno tune with the same cam, as long as it's installed correctly and not degreed differently. And I think you're better off with geared cams, as are all Twin Cam bikes.

Jun 4, 2007 | 10:18 PM

mentor70

Road Warrior

Joined: Dec 2006

Posts: 1,530

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From: Diamond Bar, California

RE: geared cams

Every bike is different, no two are alike! so any change in the breathing habbits will probably require a re-tune.

Jun 5, 2007 | 01:17 AM

Jovimon

Road Captain

Joined: Feb 2006

Posts: 502

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From: Louisiana

RE: geared cams

Andrews makes a kit to upgradeto roller chain/hyd. tensioners like the '06 Dyna's and '07 models, I'm thinking about this route instead of gear drive.

http://andrewsproducts.com/motorcycl..._Conv_cams.htm

Jun 5, 2007 | 12:29 PM

dstockton

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Joined: Aug 2006

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From:

RE: geared cams

Quote:

ORIGINAL: Jovimon

Andrews makes a kit to upgradeto roller chain/hyd. tensioners like the '06 Dyna's and '07 models, I'm thinking about this route instead of gear drive.

http://andrewsproducts.com/motorcycl..._Conv_cams.htm

I don't know the advantage here, it still uses chains with tensioners that can wear out. I think if I was going in, I'd go ahead with gear drive. The older EVO cam gear drive system is bullet proof. Harley only went to chain drive on the tc88 to reduce engine noise for EPA reasons. I've heard a few friend's gear drives running and unless you listen for it specifically you can't tell the difference.

Jun 5, 2007 | 12:42 PM

Clammy

Seasoned HDF Member

Joined: Nov 2004

Posts: 8,129

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From: Ottawa, CANADA

RE: geared cams

I went with gear drive cams, and there is a barely audible whine (which I actually like - reminds me of the sound a blower makes on an old muscle car, albeit MUCH quieter!). I did it for a couple of reasons: reliability (no chain or tensioners to wear out, no maintenance required, and got better cam bearings) and more power (no loss in the chain system).

Cheers!
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