Ever wonder what will set ported heads apart?

[Colorado700R]

Does my current head need to be sent back to you for modification to fit this cam?

[Kenny]

Yes. We had to get a balance on the geometry, because just adding lobe height was giving us screwy geometry and high RPM instability on anything rated over .500" lift (not to mention crappy thinned rockers)

[Krandall]

Hrmm... Just let me know when you ditch the RJ aaron.

[Colorado700R]

Lemme know when your ready kenny

I'll try and saving some $$

[Krandall]

KDS Parts flowing like the nile..

Lets get em' movin!!!!

[Kenny]

Here is the old geometry @.500" lift. It's hard to see, but the adjuster is tipped up on the edge and pulled almost off the valve.


Here is the new geometry at .500" lift! WAY better!

[Kenny]

KDS Parts flowing like the nile..

Lets get em' movin!!!!

Thanks bro!! It is about to change dramatically...... I wasn't hiding while I was off the forums!! There was actual work getting done

[SUB454]

Do you change the length of the guide's or valve's for this big of a cam?

[Kenny]

Yes on the valves, but I really would like to keep the rest under wraps. This took a LOT of time and money to figure out. So you understand why I don't wanna give it all away to be copied just yet......... I at least wanna sell enough to recover some of the R&D before people start making a knock-off :'(

[SUB454]

Yes on the valves, but I really would like to keep the rest under wraps. This took a LOT of time and money to figure out. So you understand why I don't wanna give it all away to be copied just yet......... I at least wanna sell enough to recover some of the R&D before people start making a knock-off :'(

KBR and OMW have already done it. I was under the impression a person could just put a big cam in and be good to go....I was wrong. Just trying to learn more before my TRF879 goes back together.

[Kenny]

What kind of lift?

[SUB454]

What kind of lift?

Not sure...enough to warant(sp?) altered guide's and valve's(length). Wish I knew more, but I don't.

[Krandall]

Are those to pics reversed by chance? first one is the "good one" and the 2nd is the bad one?

or am I stupid.

[Kenny]

You're stupid No, the second one is perpendicular to the valve which has far more even contact during the most critical part of the valve cycle..... when the spring is at it's max pressure

[SUB454]