B1 should be better top end, but I don't think 5mph better. I went through this exercise with my 270 laser. Ended up choosing the B3 for better manueverability around the dock and better hold shot. Also get straighter idle steering. When I looked into it PQ told me I would be trading 1-2 MPH top end.

Not sure it is worth the cost of changing regardless of which one you have today.....

We still don't know how many RPM he is turning at WOT today to know if he is propped right now. That boat should do 55MPH with that motor when propped correctly. That is what both FF and I are saying...what his top end should be, not what the gain will be going from a Bravo III to a Bravo I.

If he is at 50 GPS with 3-4 people and a full tank of gas, he is not that far off, maybe a couple MPH. My 270 385HP ran mid 50s at best with a load like that.

Hey now, we are not discussing a 1998 270 Laser with a 454MAG... :rolleyes: And he said he is running 50 MPH on the speedo so my guess is that is not a GPS speed. You cannot baseline anything without know RPM at WOT.

That's why I said if he was at 50 GPS - you know those pressure speedos - just like Wally's, mine was 6+ MPH happy. And we don't know what RPMs he is turning yet.

I think I am about 4200 but have not paid much attention will check it out next time i go out. The pitch on my props are 28.

28????That's way to big for that setup.You should be in a 21-23p.Assuming the Bravo 3 props are the same as a standard.Which I'll admit I don't know much about. That simply sounds like one big wheel.

Seems too big to me too, but I haven't run B3s for a long time. K4M has them on his Chap and can chime in on what pitch the are. He had his balanced, polished and thinned which helped him.

If that is truly the case and its simply a matter of oversized props. I'd try swapping them out 1st and see what the results are. You maybe able to get pretty close to that 55mph mark at which swapping drive may not make economical sense.

It's all that paint and not enough HP:cool-smiley-027: