'Pop's Engine' another 440 on the dyno.

MRL Performance said
I see a lot of you in your Pop after reading that article. Like they say, apple dont fall far from the tree.

With the small valve heads, thats a great street slammer. Good idle, nice torque curve. Now all you have to do is get the compression up, the quench down and make more power with less fuel LOL

the truck would have loved that engine.

Yep Mike, with those things the engine would be more efficient.

What we've been able to establish with the 7.8:1 440 and this 8.9:1 engine is that higher compression isn't absolutely necessary to make pretty good power. You can make an engine with a lot of parts you just have laying around. Of course if you build a new engine designed with specific parts you'll really have something. After this mornings runs the heads will be removed and we'll make some modifications to them and perhaps dyno some more tomorrow.

longarm said
Outstanding article!!!
You sure do make the old man proud!

I really love the fact you guys are making
astounding torque and power with minimal
compression and valve/ cam size.

Do you document fuel usage during your dyno pulls?
And later when you perfect these engines, do you think
it would be possible to test oil additives to see if there
are any gains to be had.
Slick 50/Seafoam/Marvel and oil/fuel additive type stuff.
I'd like to know your opinions on these products and
their effectiveness.

We have a lot of data from the pulls including fuel usage, bsfc, egt and fluid temperatures that I generally don't publish. We do keep the water 175-180 degrees and the oil temps to around 155-160 for the pulls.

These trials are specifically to test some of our cylinder head theories but of course there is a possibility of oil, intake manifold and other tests.