Where do I degree this cam

[67Dart273]

This is a hydraulic roller regrind by Oregon cam. It is supposed to be similar to a Comp XE-268H

Going in my Dart, 360LA roller block, EQ heads, mag rockers, unknown converter, 727 manual VB, and for now, 3.7X rear gear and 27+" rear tires. Rear gear may change. Street. Want lots of torque, so where do I degree this for best results?

And below is the Comp XE268HR

 

[crackedback]

Install it at 106 on the intake lobe.

You could wind it forward more if you wanted. The recommended ICL is 106

 

[67Dart273]

Install it at 106 on the intake lobe.

Hi Ron, was hoping you'd stop in. Ya know, LOL, if I live a few more years, I might actually get to drive this thing again for a week or two

 

[RustyRatRod]

I agree on the 106. I think them EQ heads are pretty accurate with their chambers. You don;t want to risk goin too far and have too much cylinder pressure.

That's gonna be a lumpy little cam. You will like it.

 

[bbrroowwnn]

yes 106...agreed....4 degrees advanced from LSA....more low end torque for the street

 

[67Dart273]

Thanks guys. I'll have a go of this tomorrow. Got the degree wheel mounted "for an early start" which means, about 10AM, LOL I put the three way cam drive in there "straight up" to see where it landed. Also bought a couple of factory mag pushrods so when the heads get here, I'll see where that ends up. Since the cam is a regrind, might need longer pushrods.

 

[TrailBeast]

, so where do I degree this for best results?

At my house and in my car

 

[67Dart273]

Well this morning was a waste. Just got lunch. Maybe NOW I can do this

http://www.forabodiesonly.com/mopar/showthread.php?t=329845

 

[jimjimjimmy]

Well this morning was a waste. Just got lunch. Maybe NOW I can do this

http://www.forabodiesonly.com/mopar/showthread.php?t=329845

well that sucks good luck with your afternoon .

 

[67Dart273]

OK, finally got the bumpstick in. For those of you who do NOT believe checking a cam is important, I had three cam drive sets

1....The Morse chain "stocker" that came on the short block, which I set aside

2....A 3 key + / - 4 degree roller set, which I tried first "straight up" to see where we were

3....A Summit multi key set which I used in the end.

Depending on "who's figures" you want to believe (checked it twice) first time said the ILC is 106.5, second try showed 106.2, where I left it

I HAD TO ADVANCE the drive set SIX DEGREES to get it to "here"

Note the paperwork shows the intake opens 5 BTC. With this setup it shows 4--4.5 BTC

It's been a day, for me LOL

 

[nm9stheham]

Doin' it right takes time and care but is worth it. The 2 numbers you got are very good repeatability. Can't tell from the OCG sheet if the 4 degrees advance is ground in or not; it looks to be, but if not, that would explain why you needed to add so much advance to get the ICL in the right spot. So should work fair for torque; it's a partial step above the XE268. The ramps are on the steep side for a flat tappet but I would think the rollers would do fine.

BTW, the intake closing angle listed is at .050" tappet lift so don't use that to compute DCR. I'd use the .006" lift numbers to figure that. The same applies for the 5 degree BTDC intake opening; that number is at .050" tappet lift. Make sure that is where your lift was for that measurement (which I suspect you did).

We have a slightly smaller duration Crane Cam for our 340 with less aggressive ramps and a 112 degree LSA. We may have to drive out to Boise and see if we can 'take ya'! Need to be at least over the 1/4 mile so we can make good use of the GV OD.... LOL

 

[67Dart273]

Yes the figures I used for ICL and intake "open" were .050 at the lifter. The top photo is the complete data sheet I received, so "it is what it is." I see nothing in there to clue me as to what might be "ground into the cam" LOL

I'm not in Boise, though, have only been through there once in my life. I'm "way up here" in the N end.....the panhandle. We sometimes say "North Idaho---it's a state of the mind"