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[nixobilly]

I've been researching a cam upgrade and came up with these two cams that would fit my kind of riding.

woods 77 vs zippers 575

Would you of you smart guys give me some feedback on which one might be better for me?

I'm a 1up long distance cruiser who wants to be able to pass 2 semi's quickly if need be but want efficiencies in the 2500 to 3200 rpm at 20-50% throttle positions.

What else should I get at the same time I do this upgrade (oil pump? springs? Lifters, push rods???)  Makes and brands would be of great help.... worried about my hot 110....

Thanks in advance,

Mark

[hd-dude]

Not familiar with a 77 cam from Wood, Is this a typo?

Based on history with both the 575 and YB14 or 13 cams from Freedom cycles on would only consider one of these for the 103 motor as they were designed speciically for them.

As far as other upgrades at a minimum you will want to do the zippers bypass shim or baisley bypass spring to increase oil pressure. You could also do a feuling pump and lifters. Adjustable pushrods are required.

[Unbalanced]

Nixobilly,
To help clarify is this the cam your talking about?   One is gear drive and one is a chain drive like you would have in the 07 bike already.  Same specs.   



Gear Drive Model
TW-7HG-7
20/40 240 .575 .194
42/18  240 .575 .176
HI-LIFT
New for 2006 – 2007 Bolt-In Super High Torque for SE Performance Heads
   
or

07 Single roller link chain drives

TW-7H
20/40  240 .575 .194
42/18  240 .575 .176
  HI-LIFT
 New for 2006 – 2007 Bolt-In Super High Torque for SE Performance Heads
 

[Smiler]

How did you do the research - I would love to look at tyres and braking systems

[nixobilly]

Nixobilly,
To help clarify is this the cam your talking about?   One is gear drive and one is a chain drive like you would have in the 07 bike already.  Same specs.   



Gear Drive Model
TW-7HG-7
20/40 240 .575 .194
42/18  240 .575 .176
HI-LIFT
New for 2006 – 2007 Bolt-In Super High Torque for SE Performance Heads
   
or

07 Single roller link chain drives

TW-7H
20/40  240 .575 .194
42/18  240 .575 .176
  HI-LIFT
 New for 2006 – 2007 Bolt-In Super High Torque for SE Performance Heads
 

Yep that is the one -- I suppose I would retain the stock chain drive....

Mark

[nidan]

I posted a chart on the 7H vs stock SE 255 in another thread , it's a pulls about 115lbs ft with 50mm TB and Fat Cats from 2500 up . Stong flat curve .  Bobby suggests roller rockers for his cams

[Rhino]

I have heard good things about the Woods 7H, and the 575.  I think the 575 my be a true bolt in, whereas the 7H might benefit from a larger TB, but my choice was also based on the TMAX maps also, so I am tilted towards the 575, and say no to roller rockers, this ain't a rocketship with 150HP.

Rhino(yesIdiditandinstalledthe575iamallzippedupforafewdays)

[DCFIREMANN]

As Jim said the only cams I would use in a CVO motor would be designed for that combustion chamber.

 The problem with the CVO motors is the Hemi style combustion chamber. It is very big and you are running a very low stock compression. The cams designed by Freedom and Zippers are designed to make the motor think it has a higher compression ratio. The TQ cruve comes in much faster. The TQ curve is also higher and flatter. The HP numbers are not much higher, but you will see a slight increase.

Be Safe

THE DAWG

[Unbalanced]

Nixobilly,

While it is true the Freedom Cam and the Zippers cam were built specfically for the CVO's thus far the numbers posted have all been similiar yes different but with similiar results depending on the combinations or lack of combinations.    That being said one or 2 have gone with the SE-251 another recently with the woods 77 and many on the site with the Freedom and the Zippers although you are seeing very few of the Freedom cams showing up in dyno sheets.   The ones that have show the cam coming in slightly later than the Zippers, holding on longer to the curves and producing slightly higher peak numbers.   Recognizing where/what the differences are I am not sure what the fuss is all about all 4 cams are similiarly built, but a few tailored for specific bolt in purpose.   You will note some  slight changes in lift / duration and timing and yes it does make differences based on compression, timing, etc, but they are all very similiar cams which is indicative of the numbers they are producing.

The question I would ask Bobby Woods is why he is recommending roller rockers for the build and the other 3 vendors are not directly suggesting you go to them.   He doesn't just recommend stuff for no reason and it might be good insight.

[Unbalanced]

Nixobilly,

Something else you may want to note is that the Freedom cams are now being delivered in Gear Drive and Chain drive for the 110's.   

[DCFIREMANN]

Nixobilly,

While it is true the Freedom Cam and the Zippers cam were built specfically for the CVO's thus far the numbers posted have all been similiar yes different but with similiar results depending on the combinations or lack of combinations.    That being said one or 2 have gone with the SE-251 another recently with the woods 77 and many on the site with the Freedom and the Zippers although you are seeing very few of the Freedom cams showing up in dyno sheets.   The ones that have show the cam coming in slightly later than the Zippers, holding on longer to the curves and producing slightly higher peak numbers.   Recognizing where/what the differences are I am not sure what the fuss is all about all 4 cams are similiarly built, but a few tailored for specific bolt in purpose.   You will note some  slight changes in lift / duration and timing and yes it does make differences based on compression, timing, etc, but they are all very similiar cams which is indicative of the numbers they are producing.

The question I would ask Bobby Woods is why he is recommending roller rockers for the build and the other 3 vendors are not directly suggesting you go to them.   He doesn't just recommend stuff for no reason and it might be good insight.

Because of the excess valve train noise produced by some of his cams!

Be Safe

THE DAWG

[Unbalanced]

Dawg,

Spoiling the surpise for Nixo I see ...   There is no fun in that.   

[hd-dude]

Yep, The woods cams have very steep ramps which causes them to be noisy. May have something to do with the roller recommendation as well

[DCFIREMANN]

Dawg,

Spoiling the surprise for Nixo I see ...   There is no fun in that.   

I can tell you first hand IT WILL RUN LIKE A BAT OUT OF HELL!!!!!!! But it will make some valve train noise!

Very good cams but very noisy!!!!!

Be Safe

THE DAWG

[Unbalanced]

HD-Dude and Dawg are absolutely correct the hard ramps and quick closing intakes are what Bobby is known for, making power.   For me the noise is significant in the valve train, and longevity has been somewhat questionable depending on the cam.  I have only tried 2 of his cams the 6hg and the 400w.  My issue with the adding of roller rockers is a bit more noise on a touring bike, but everyone is different in what they hear and are willing to hear and if you were to ask my wife I am partially deaf, yet this is a noise that while I am driving it wears on me enough that I used to drown it out with the radio.   

Nixobilly I would suggest checking out a bike or two that has roller rockers and a hard ramping cam and see if the noise will bother you before you jump right into this.   You may not get the combination of woods cam / roller rockers, but if you can find an S&S 113 or larger or a Jims 120 or a TP 120 you will get a good idea of the valve train noise and whether it bothers YOU cause that all that matters.