Kelford cam degree findings....?

[rastmp]

Hey Guys,

I degreed my Kelford 264/264 cams and came up with Intake cam being advanced by 2 degrees on open and 5 degrees on close.....?
I rechecked my true TDC over and over again and gague readings many times..came up with the same reading..

Question:

Is this normal for Kelford cams? People said Kelfords are always 'dead on'..?

I am using a Cometic stock head gasket and the head/block did not need any type of machine work..

Thanks in advance for any comments....

 

[YZFR1]

How does your centerline compare to the cam card?

Are you using adjustable lifters or are you shimming them for negative lash?

If you are not using adjustable lifters chances are your opening and closing numbers will be off, however, if you are adjusting for negative lash than your centerline should still be accurate. So just go off the centerline numbers and not the opening/closing of the valves.

 

[rastmp]

Im using solid lifters with zero lash....
So using the centerline method is more accurate?
Thanks

 

[YZFR1]

Ok, if you are using solid lifters and assuming you have everything set up right than your opening/closing numbers should be pretty close.

No, i was not talking about the centerline method of degreeing. I was talking about the centerline numbers of your cam card. For example, when i did mine the cam card called for intake centerline being 106 and exhaust 113 (if i remember correctly). You can use those numbers to determine how advanced or retarded your cams are from the cam card. So if i would have came up with 105 for intake and 114 for exhaust, for example, than that would've meant that my intake would've been advanced 1 degree and my exhaust would've been retarted 1 degree from the cam card. I hope that makes sence.

I would recommend for you to measure your centrline and see how off it is from the cam card. Other than that since you are using solid lifters you should be pretty close so or your measurements are off or the cams you got might not be all the way to the cam card specs.

Here is the youtube video that explains about the centerline a little http://www.youtube.com/watch?v=-VwsbEg7Z4I

And this second one is really good for showing how to measure centerline http://www.youtube.com/watch?v=zVbwQ-O0Jlg&feature=related

 

[Boostdriven]

From what I've seen kelford are dead on for the most part but every engines is a little bit different due to head/block and head gasket thickness. I have a set of kelford 272s and I had to make minor adjustment. If I remember correctly I had to retard the exhaust cam like 5 degrees and retard the intake like 2 degrees to match the cam card. Before I did that I could feel a slight hesitation at about 7500 rpms but once I got them degreed that went away and no problems to 8500 rpms

 

[rastmp]

You made a good point..thanks...I will have to recheck...