wrote in message
oups.com...

John H wrote:
Below are the performance specs for the 228 Grady White with the F200
Yamaha
followed by those with the F225 Yamaha. The data seem to indicate the
F200 is a
better performer. The recommended cruise RPM is 4000, but the F200 is
*faster*
than the F225. There is about a 360lb difference in the accessory
weight (from
something??), but would this account for the difference?

Also, what's the simple difference between a Yamaha 200 HPDI and the
current
engines. Is the HPDI a two or four stroke? I'm looking at an ad for a
2001 GW
228 w/Yamaha 200 HPDI engine for $31865.

I'd bet money on the weight. Take your boat out for a run, take notice
of speed, etc. Then add 360 lbs. at the transom, and try again.

Weight has some effect...but not as much as the hardtop on the boat with the
225 (the 200hp-powered boat had no hardtop). Hardtops add weight *and*
drag.