Ok, fun day at the dyno today. No issues except for a new oil filter adapter that had a little gouge in it that led from the top oil passage to the top of the flange. Under pressure the thing leaked like a sieve.
Other than that, had a lot of fun. The engine sounded really good idling. Even at 1200 rpm, it had a unique sound to it. And with any higher compression engine, it always *feels* good when you're standing near.
This was a very solid combination. I didn't note it in the build specs, but this is a newer lobe from Comp that runs on just .010" of lash. It should be very easy on the valvetrain. I set the cold lash at .010" and when I checked them hot, they had not moved, so it was a very stable combination of valve springs, rocker arms, etc.
So for the numbers....
We made peak hp of 568 hp @ 6250, with a 1.07 correction factor. So, the uncorrected number is 531. I haven't looked back through the posts, but whoever guessed nearest 531 without going over will win.
Peak torque was 536 lb-ft @ 4500. Those are corrected numbers.
I didn't expect this one to be a torque monster. Any time that you have a large camshaft with rpms in mind, the torque will generally be less than the horsepower. The longer lobe separation helped it hang on as it still had 564 corrected horsepower at 6500.
All-in-all, the camshaft and the higher compression were tools to band-aid the cylinder heads. We basically made 2hp per cfm, but if we were to slap a set of TFS heads on this puppy, I bet the horsepower would go through the roof. My customer was trying to keep this on much of a budget as we could and his viewpoint was to reuse the heads and spend the money on the bottom end, as we could always swap heads later. I think that will be the goal.
Just for data's sake, we ran this at 140-150 degree water temp. A/F was 13:1 and that big, deep Milodon pan made the oil temp go DOWN as the pull went up. Cool stuff.
If you're on Instagram, I have videos going up. I'll try to YouTube them too.
