Torque and HP numbers for my new motor
 

Crazyhorse and KAAMA got a new Desk Top dyno program and we plugged some numbers into it today. Crazy and I started assembly this afternoon.

My motor is:
.060 over 454
GM Rect. port heads (slightly massaged, but nothing radical)
2.19 Intake and 1.9 exhaust valves
8.6:1 compression (actually a little higher than that, near 8.75 or so but the numbers are run at 8.6)
Dual plane Merc intake manifold
Holley 750 cfm carb
Cam specs:
Hydraulic lifter, flat tappet
114* lobe center
.527 intake, .553 exhaust lift
224.0 intake, 232 exhaust duration
All at .050 lift

RPM HP TQ
2000 178 467
3000 280 490
3500 335 502
4000 387 509
4500 432 504
5000 461 484
5500 465 444

When we ran SuperVs motor last weekend on the dyno, his numbers cam REAL close to what the desk top dyno said. I'm looking forward to running this motor!!!!! Gonna need a new prop for sure!!! This is easily 100 hp more than I had last year.


Oh, and at 9500 rpm it makes 63 hp and 35 ft/lbs of TQ. But I have to believe it would actually be making 0 hp and 0 TQ on the end of a tow rope at that rpm!!!!

Mike,
Glad to hear that the motor runs---now get it in the boat!!

LOTO will be here before you know it!!!

Later,
Dave

His motor isn't running yet but I hope to have the short block assembled by tomorow afternoon (Sunday). Keep in mind the Desktop Dyno offers many variables but as Waterfoul said, SuperV's actual dyno numbers were less than 1% different than the DT projections. KAAMA's 540 dyno numbers were also very close, within 2%, of the DT figures.
SuperV and Dyno spent the day installing SuperV's engines in the boat today. Maybe the sea-trial can happen next weekend.

OOOPS!!!!!! I guess I read that post too fast!!! Well either way get that motor together and in the boat!!

Dave

Hey Dave, you making any progress without me??? Let me know if you need anything so I can pick it up after work on Monday.

SWEEET. Let's hope desktop dyno is within 1% again.

Hey Waterfoul I have a 27 pitch 3 blade prop collecting dust if you want to try, let me know and we can see about getting it over to you to try, Dwight.

mike, I've got that 25" 3 blade we can try too, and my trusty tow line. you know the one end........... Hee Hee

i'm predicting 64.88888888 mph

HEY MIKE
WHY SO CONSERVATIVE ,WHY NOT MORE COMP AND CAM

Conservative? This is basically the hp of a 500HP for about 1/10th the cost to me. It's about 100+ hp more than I had last year (or the year before that, or the year before that.....you get the idea).

Fred, we are in the process of installing pistons now. Everything is going really well. Crazyhorse's knee dictates the speed at which this is getting done. Which is fine with me.