More BS about going fast....

[bgreene]

Originally Posted by RidgeRunner

Current Prop is a Quicksilver 14.8 x 21p. 5900 RPM limiter 58.1 mph
With the setback I have the motor as high as it will go and maintain water pressure. My spare prop is a Tempest 14.5 x 23p and is the fastest prop I have, light load turning 5900 rpm 60.1 mph. The motor is a stock 250 XS Merc. I think 250 is about where it is at for hp. The old 250 EFI had a better power to weight ratio so it was faster, retired because it used twice as much fuel. The best I ever saw was 63.1 upwind, down current with the 23p Tempest on the limiter. It dawned on me later that I could have had a 2 to 3 MPH current that day..

None of these top end numbers are very efficient, lots of prop slip. My MPH could be much better if I shed the T-top and baitwell/leaning post combo. That has got to be costing me some efficiency.

Might even go faster if you jumped overboard to reduce some weight after getting it fully trimmed out ?

[RidgeRunner]

Definitely faster without me.
300 has been considered.
Wonder what a 280 would do with the right prop? That would be interesting especially with 2 hung back there.. Hang em right on the transom. I am fairly sure twins would negate the effect of the round keel and reduce the propensity for chine-walk.

Spare, 2.4 what? Twin Bridgeports would be ERA correct.. Cool would be the Twin Towers of Power 1500xs.

[smokeonthewater]

I keep wondering what twin 1150's would do (knowing I could later swap in bigger powerheads) but honestly I think I'd rather just have a much more modern engine even if I didn't get as much top speed

[spareparts]

Ridge, you said the boat ran 48 with teh 2.4 200, what prop were you running on it at the time?

BTW, if stumble across a twin of my brown stripe 200, i might have to get a bracket and run the pair, it would be fun. Marc posted some video of his Seavee running across the harbor running round 70, those choppers he's running make a nice rooster tail