It takes 30 draft horses to spin 16 bushings. Learn something new every day.

Percheron or Clydesdale? If I want to spin 8 bushings faster would I be better off with a faster horse?

Guessing they don't eat their Wheaties !!

Interesting info here and we will never know the truth. But I appreciate the option to open my mind and explore these thoughts.

I'm always nervous when talking with a company, even the engineers, if I'm just falling for a sales pitch or not, or maybe something in between.

30hp is a lot though

Everything's biased, all tests and articles are paid for by someone.

How often do you read "so and so new product, lifter, hull, snowmobile, dirt bike, crank, rod, is junk, Rob's horsepower, handles like garbage, etc.

I agree. I wouldn't have thought it would have been that far off. The motor was a freshen up. Had isky needles in it prior. Was rebuilt with bushings. Ran on same dyno by the same operator. Ran on a Superflo 901. That is kept in good order. Considering the type of motors the shop builds. Repeatability on the dyno is key. So, after the motor was broken in and flogged a few times the numbers just weren't there. The only difference was the lifters. So, out came the bushings. The old lifters went back in on the same day. And the numbers came back. At that point we were out of time. The bushings did not go back in for a true a/b test. But ultimately the bushings went back in the motor. Motors back in the boat. 4 seasons later the lifters are still perfect. There was no notable performance difference after the motors were returned to the boat...

Screw it. Im going back to solid flat tappets.

Spintrons exist, this can be measured. 30hp sounds high, that's the difference between a flat tappet and a roller cam with a more aggressive profile! I agree about the heat too, that would be a ton.

You know there's something to be said about those solid flat tappet. If I'm not mistaking Rookie ran them for years making great power on 468's I believe. I only heard second hand however believe this to be true. If you think back it wasn't real long ago there was a bunch of power being made with them and didn't seem to be all these issues with failures from rollers to hyd lifters. I wonder how many solid flat tappets go in builds nowadays? How much power loss estimated from solid roller to nonroller? 20-30?

With reading all the post there is some interesting info here. Something else to consider is other parts/applications that use bearing rather than bushing. Being a cam the pressures vary much but look at other parts like ujoints, wheel bearings, and so on. Now on the other hand in a sense our entire engine is assembles bushing (bearings). I haven't had the balls to try needle cam... I'm fine with the old school.

So is everyone pretty much on board with bushed lifters? As mentioned in earlier post I keep on on regular maintenance and would be lucky to see 60-70 hrs max a season. Rookie had a good point though with being able to send the isky's off for rebuild every couple hundred hours or whatever isky would recommend.

How much of an impact does prolonged idle times (no wake zones, long river out to the lake time etc.....) have on a bushed lifter?
I was under the impression that the bushed lifter needed some RPM to maintain the oil wedge and live.

Does morel offer both bushed and needle or just bushed?