VOG Forum banner
1 - 7 of 7 Posts

·
Premium Member
Joined
·
898 Posts
Discussion Starter · #1 ·
Here is an interesting project that I've wanted to tackle for a while now: putting older stock Victory cams into a newer 2008 106". The cams that Victory used in their 2002-2005 92" bikes have been known for a long time as a very well designed cam, and The Vic Shop has been using them as a performance upgrade for the 2005-2007 100" engines for years now. These cams feature the older, smaller cam journals and work on the older "split" style cam carriers. Victory used these split cam carriers from 2002 to 2008. As I type this in 2019 there are very few aftermarket cams that fit the old style carriers. We would generally swap to the newer 2009+ cam carriers when doing an aftermarket cam in a 2002-2008 engine. This creates more cost. So I've been wanting to try some of these cams in a 2008 106" engine for a while now. The stars hadn't aligned until a week ago when I picked up this 2008 Vision who's owner had scored some 92/5 cams for FREE and wanted to try them out.

View attachment 512737

The 92/5 cams are seen here. Also in the picture are The Vic Shop's advanced cam gears. We use these in certain instances to increase cam timing to build more low-end torque.

View attachment 512739

Here are the results. The Red lines are as-delivered: 2008 Vision with Lloydz Motor Workz top filter and 44mm adjustable intake fueled with a VFC controller and running loud, gutted slip-on exhaust.
The Blue lines are after the addition of the 92/5 cams and advanced cam gears. We then retuned the bike with a Power Commander 5 instead of the VFC. No change to to the intake or exhaust.
Very nice gains for a free set of cams! More power from 2700 rpms and on and a nice broad torque range. I'd say that's a success!
-Rylan-

View attachment 512741

Here is the effect of the advanced cam timing. Red is "Straight up" and Blue is "Advanced". We could have opted to leave the cams straight up and made 6 more hp at the top-end. In this case we were aiming for more low-end torque and advanced the cams (about 7 degrees) and picked up some torque under 3500 rpms.

View attachment 512743

 

·
Registered
Joined
·
6,846 Posts
Are those 92/5 cams similar to the 'stage 3' cams that Vic sold? I had gotten a set of those for like 50 bucks and put them in my 07 KPT years ago and I liked them, but the curve seems pretty similar; the top end isn't what it is with some other cams. Def pulls well on the low end compared to the stock cams.
 

·
Registered
Joined
·
181 Posts
Kaitiff here is a comparison between the Stage III cams and V92. Even threw in stock XC/Vision cams

Vic Stage III Specs
Int 210* @ .050 Exh 219* @ .050
Overlap 11*
Lift .405

V92 Specs
Int 228* @ .050 Ex 224* @ .50
Overlap 20*
Lift .393 Int /Exh .388 ICL 107.5 and ECL 105= 106.25 Lobe separation angle

2013 XC Duration
Int/Exh 208* @ .050
Overlap -4*
Lift .393 ICL 103 /ECL 109 = 106 LSA
 

·
Premium Member
Joined
·
898 Posts
Discussion Starter · #6 ·
Are those 92/5 cams similar to the 'stage 3' cams that Vic sold? I had gotten a set of those for like 50 bucks and put them in my 07 KPT years ago and I liked them, but the curve seems pretty similar; the top end isn't what it is with some other cams. Def pulls well on the low end compared to the stock cams.
Yeah, similar, but not the same.
 

·
Registered
Joined
·
1,078 Posts
Rylan,

Cool project.
Nice tq increases across the map.
Too bad they dont offer more HP.

WW
 
1 - 7 of 7 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top