[ATTACH=CONFIG]555691[/ATTACH]

This, on top off

[ATTACH=CONFIG]555692[/ATTACH]

And the picture comes together.

[ATTACH=CONFIG]555752[/ATTACH]

I'm calling it "the Gray Ghost"

Dyno Time next week

[ATTACH=CONFIG]556041[/ATTACH]

Fresh off the dyno with mufflers

720HP @ 6000 RPM N/A 540 EFI

[ATTACH=CONFIG]556042[/ATTACH]

Without mufflers HP drops but torque goes up

690 ftlbs @ 4000 RPMS

Looks like 5400 RPM is the cross roads of torque an HP mufflers or not. Very happy with outcome

Now......................anyone know how much torque an XR outdrive will handle?

Torque and horsepower always intersect at 5252rpm.....just so you know. Very nice #'s!!! Nice to see a build report back with dyno -sheets, doesn't happen that often, good for you man!

Sweet 720 NA is no joke. So how much longer before ya get her on the water?


D

Great engine build.

Dig a burial plot for that Bravo now.

drive guardian
http://www.offshoreonly.com/forums/g...ear-later.html

at $2500 with that power could pay for itself pretty quick
http://www.marinedesigncorp.com/our-products.html

prop it for 6k, the drive might live for a while.