HarleyTechTalk

Anyone heard anything, good or bad about this cam?

Good cam for a garden tractor..

Max

Well thanks that helps--- NOT!

I have installed a few of them, here is a sheet of one of them with a baseline, they perform well everytime. This comparison is an 09 Street glide, the before is stage one with Rush slip ons, the after is addition of cams and tuning.
Max, I mow 3 acres here, if you have a garden tractor that runs like this bike you can mow my lawn.

Thanks for the reply, my bike is a stock 96 with PCV and auto tune, Bub Series 7 mufflers. This is the only other upgrade I'm thinking of doing. I ride 2 up most of the time, and loaded down on trips a good part of it. I was thinking this would be a good fit as I don't want to do any head work or the like. I know everyone has an opinion on this stuff just trying to get a sense if I'm thinking correctly.   

I put them in my 06 Ultra 95" stock heads shaved .020 with a .030 gasket, Fulsac Tru dual conversion with Fatshotz huge improvement over the Andrews 37 cams that I had. Pulls great from just over idle to over 4000 rpms 2-up riding I have been getting 44-46 mpg and solo 46-48 mpg at 65-70 mph
I have no regrets with making the cam change on this bike

we`ve had very good results will them(BTW,i run .585`s in my garden tractor,ive got a big yard,got to cut it FAST)

Thanks for the reply, I think I'm leaning to this mod. Any hints or other ideas are welcomed.

we set the 551`s @ 9.8-1,their VERY nice cams

Okay you lost me what do you mean you set them to 9.8 to 1?

Quote from: prodrag1320 on September 13, 2012, 03:21:35 PM
we set the 551`s @ 9.8-1,their VERY nice cams

Kirby, just curious, if someone wanted to use the 551 without the easy start option in a stock TC 96 motor. Do you think, or know if the 19 degree intake closing causes any hot starting difficulty? Seems like it would. I'm sure the easy start takes care of it, but just wonder about without it?

Quote from: scsharp on September 13, 2012, 03:24:44 PM
Okay you lost me what do you mean you set them to 9.8 to 1?

Set your compression ratio to 9.8-1

Okay now I'll ask the dumb question how do you do that??

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A lot of extra work if your not going big bore

Okay well I'm not planning on anything but the cams

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Don't know about the 551s but the 585s in my 120 have mowed a lot of asphalt.
Ron

Quote from: BVHOG on September 13, 2012, 01:40:27 PM
I have installed a few of them, here is a sheet of one of them with a baseline, they perform well everytime. This comparison is an 09 Street glide, the before is stage one with Rush slip ons, the after is addition of cams and tuning.
Max, I mow 3 acres here, if you have a garden tractor that runs like this bike you can mow my lawn.

The only thing I mow with the garden tractor here is dirt...

That curve is would make a good tractor cam.. Set the Rs to 4500 and as the load increases and RPMs drop and the torque increases to handle the load.. Only taken me 40 years to see it.. Seems like it would work real well for someone running the ET class.. Don't make any ET difference if you shift at 4000, 4500, 5000, 5500..

Max

Have you looked at the "583' :fish:s"

Quote from: Ohio HD on September 13, 2012, 03:27:18 PM

Quote from: prodrag1320 on September 13, 2012, 03:21:35 PM
we set the 551`s @ 9.8-1,their VERY nice cams

Kirby, just curious, if someone wanted to use the 551 without the easy start option in a stock TC 96 motor. Do you think, or know if the 19 degree intake closing causes any hot starting difficulty? Seems like it would. I'm sure the easy start takes care of it, but just wonder about without it?

Maybe YES or NO... Go to sturgis on a typical day there and look at the HD dealer fixing bikes with starting problems. The dude in Cody Wy is full up on repairs. You got the chance to use the ES option don't throw it away. It is cheeper than replacing a stock starter in a year.

Quote from: Ohio HD on September 13, 2012, 03:27:18 PM

Quote from: prodrag1320 on September 13, 2012, 03:21:35 PM
we set the 551`s @ 9.8-1,their VERY nice cams

Kirby, just curious, if someone wanted to use the 551 without the easy start option in a stock TC 96 motor. Do you think, or know if the 19 degree intake closing causes any hot starting difficulty? Seems like it would. I'm sure the easy start takes care of it, but just wonder about without it?

Ive used them w/o the EZ start on "cam only" 88" & 96" ers with no starting probs,when i do set the compression where I want (9.8-1-1),we do use the EZ starts

Well I ordered the 551 ez start cams, thanks for everyone's input.

Just heard from Phat Performance, my cams well be here Wednesday

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Well, how have the cams been these last couple years??

Quote from: SailorSteve on June 19, 2014, 07:27:19 AM
Well, how have the cams been these last couple years??

Well based on this thread,, Nothing to brag about.. 
Max

I have a 98", .030 HG, 551 gear drive easy starts, 06 heads with some attention from Kirby, max flow air filter, Thundermax, 50mm zippers TB. I mostly ride by myself in city traffic stop light to stop light. I'm happy with it. I guess it depends on what riding you do. Wow, just noticed this thread was almost 2 years old!