Thread: Dyno-Sim combinations

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Richard,
As usual, you have provided great information that is much appreciated. Thank you.

I was a little surprised to see the HP numbers that low, but very pleased to see the torque numbers in the rpm range you show. My goal was to build an engine with good torque and run on cheap gas and I think this will fit that goal. For a street driven car, I think I would be very happy with that kind of performance. In fact, now that I look at the numbers, I would guess the torque numbers are comparable to many of the 400+ hp engine builds out there, as they usually get their high hp numbers in the upper rpm range. At 420 ft lbs of torque, my car on the street should be very impessive. My other goal was to get good fuel mileage, but I don't think I will know for sure how that goes until I can actually drive it.

Squish/quench on the engine was calculated to be about .040 but I won't know for sure until Everything is assembled after the final decking and I do the final measurements. I have held off ordering a head gasket until after I determine the final "in the hole" measurements. So far I was planning for a .028 thick gasket to get the .040 quench, but we will see.

I also appreciate you doing a "what if" to show potential results with a few upgrades. I should be getting my block and heads back from the machine shop in the next couple days after the final decking ang milling, and I've already had the rotating assembly balanced and piston pressed on rods, so I will likely continue as previously specced, but I am having so much fun, that part of me wants to start on another build after this one and possibly go for a much more aggressive build, maybe something like a 383. We will see.

Overall, I have really learned a lot. Presently I'm getting ready to assemble the heads and am learning about, installed spring height, pressures and forces, and what causes valve float. It continues to be a great ride.