Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[efrbc1]

2005 SEEG, 103" motor.  The bike will be "down" for a bit waiting on painted parts so I will be using the time to change to gear drive cams.  The motor is currently stock with the addition of an SE air cleaner and Reinhart TD's.  The dyno sheet I got when I bought it showed 78 ft/lb torque down low which is less (a lot) than my 95" RK with TW26g cams.  I am staying with the Andrews cams, but not sure if the 37's or 54's would be best.  AMS recommends the 37's and Andrews the 54's.

Looking for lots of torque down low - most of my riding is done between 2000 and 3500 rpm with an occasional run up to redline (for fun!).  I know the 37 will pull hard down low but will it run out on top?  The 54 will run high but will it give me what I am looking for down low?

I also have the option of going back to the stock headpipes and running a set of Screamin Eagle 61115-98B slip ons which I know will improve my performance down low.

37 or 54 cams??
Stay with the Reinharts or go back to the stock headpipes with the 98B'??

So, what I am looking for is feedback from someone who has a similar setup to what I am thinking about doing.  What do you have and how do you like it??

Thanks,

Chris

[DCFIREMANN]

Chris I would rethink this. Your 103 CVO motor has a Hemi CC chamber. Your CR is around 8.9 to 1. This is very low. Two companies have developed cams for this motor and your setup. Zippers and Freedom. Both have changed the cam timing to make the motor think it has a higher CR.

This would be my recommendation. Either cams, fueling pump and lifters, adjustable push rods and a baisley spring. Then some sort of fuel injection management for your new setup.

Be Safe

THE DAWG

[efrbc1]

Read some info on the Zippers 575 and the Freedom 14's but from what I can gather is these are both more of a mid to top cam.  I am looking for something that will pull tree stumps!!  My RK is an AMS 95", with their head work and TW26G cams.  Over 90 ft/lb of torque @ 2200 rpm.  The dyno on my SEEG is 76 ft/lb torque @ 2500 and then dips a bit.  I'm hoping that the change from the Reinharts will help but I know the stock CVO cams suck.

Will be going with AMS lifters and adj. pushrods.  Probably the PClll over the SERT.

Chris

[DCFIREMANN]

OK one more time. The heads on your CVO are nothing like the heads on your Road King. That is why you want the CVO cams.

If you don't want to buy a CVO specific set of cams pull your heads have them tricked and then buy a new set of pistons and go that route. The CVO cams cut in real hard around 2500 to 3000. That is their full TQ potential.

Be Safe

THE DAWG

[hd-dude]

DC is giving you sound advise, stick with the cams that are designed for the combustion chamber that is in your engine. The CVO 103 heads are huge (98cc) with low compression. [img]http://The FCC 13 or Zippers 575 are a perfect fit. The zippers comes on a few hundred RPM sooners than the FCC but die off faster.

Here is a dyno run with RH true duels and the FCC 14 cams

Many more runs in this thread:
http://www.cvoharley.com/smf/index.php?topic=162.0

[efrbc1]

DCFIREMAN, sent you a PM.

Chris

[DCFIREMANN]

Chris I sent you one back. If you need anything else hit me up/

Be Safe

THE DAWG

[efrbc1]

Thanks.  Checked the YB13 and YB 14 cam specs.  The Zippers website is sending my Norton Anti-Virus into overdrive so I'll have to call them tomorrow.  Looking at this differently now so I guess my choices have changed.  How similar are the Yuill Bros (13 or 14) and the Zippers 575's??

Any thoughts about the exhaust - keep the Reinharts on or switch back to the stock headpipe with the 98B's??

Chris

[Fired00d]

Here are some threads to look at concerning the Freedom (Yuill Brothers) and Zippers Cams......

REDSHIFT 575 CAMS & OTHER PRETTY PARTS (scveral dyno runs in this thread)

FCC14 Cams 103 Dyno

Freedom Cycles "Secret" FCC9 Cam Dyno (earlier version of the FCC14)

Freedom Cycles CVO 103 Cams

 
Ride Safe,
Fired00d
 

[efrbc1]

OK after "consulting" with a bunch of CVO 103" owners, I have decided to go with the Zippers 575 cams.  Putting together a shopping list of sorts:

575 Gear Drive Cams
S&S Gear Set and Install kit
Feuling Oil Pump (std. one)
Feuling HP+ Lifters
Probably a SERT as this is what my tuner recommends
SE Adjustable Pushrods (already have them)

Besides gaskets and "shop stuff" anything overlooked??

Previous thread mentioned checking cam lobe clearance.  May or may not be necessary.  I think I know how to do this but any pointers are greatly appreciated.

Looking forward to some "kick ass" results, thanks to all.

Chris

[Fired00d]

You should be happy w/those upgrades. I am... see my signature.

 
Ride Safe,
Fired00d
 

[hogasm]

Has anyone done this cam change with only a breather slip ons?

[Twolanerider]

Has anyone done this cam change with only a breather slip ons?

Zippers recommended the cam being done with or after better exhaust and air intake changes.  But Zippers likes themselves.  So you can't really trust their judgement... 

[Twolanerider]

N.B., sorry...  The 575 cam package has been a good one and was for me. 






Now back to our regularly scheduled bashing....

[CVOJOE]

Zippers recommended the cam being done with or after better exhaust and air intake changes.  But Zippers likes themselves.  So you can't really trust their judgement... 

Go with the Freedom cams, they provide fantastic service which is not the experience many of us have had with Zippers, at least IMHO.

Joe