One would think but I've never had any issues or signs of premature wear of any sort. Valako is kinda funny cause he said he might change his 1.85's cause he said he didn't think he really needed them so instead he wants 1.80's. Here I was thinking he was gonna drop to 1.70's. Evidently his alignment etc is spot on. endeavour runs this chit out of his and were before he got the engines. No issues. I hear this often but what actually are they harder on? I would think the cam more than anything but we've disproved that out at least on custom billets anyway.

Most I ever recall running them is braking a rocker arm stud or two but ARPs took care of that problem.

I would think (have no proof just my thoughts) but one would be better off running the higher ratios with solid LIFTERS as opposed to hyd. I would assume it shouldn't mater if the cam was solid or hyd roller.. again jmho

Yes, I have seen the fuss point of hr lifters lower by 400+rpm with 1.8 rockers. Note, have not tried them with the newer short travel lifters.

1.7 ratio is pretty high ratio anyway....I'm all set going any higher unless a lot more $$$ is spent on the valvetrain to make it alot lighter and hopefully more dependable including shaft rockers and etc.

IMHO.

I'm sorry you've lost me , is not math just math? If not so please explain why. Less cam resulting in same lift with more ratio equals the same lift does it not? Not trying to be a deek here, but struggling to get it.

Pushrods. Don't forget the pushrods!

yes very good point!

One of my favorite quotes - I had this under my name recently and for a while

"Today's scientists have substituted mathematics for experiments, and they wander off through equation after equation, and eventually build a structure which has no relation to reality." - Nikola Tesla

Now I'm more lost than ever so I'll bow out and stay out. Btw, tesla rocks and I'm not even remotely electricly Inclined, but I worked with some really, really smart guys.

No, it was me bowing out of the math for 'smaller' cams with higher ratio vs 'larger' cams with lower ratio.

So many ways that subject can go.....don't know if I have the stamina for it. LOL.

You guys can go with it....if I get the energy I'll add to it.

Correct me if I'm wrong, harder yes, but how much harder is the question and where. Is it easier on the valve train than trying to put that size lobe on smaller duration? With ratio it is sometimes the only way to achieve the desired lift. With ratio you are affecting valve lift and velocity, not a lifter riding a tall lobe with to fast acceleration ramps.

I'm just asking.