I recently repowered with 370 cummins engines and am having problems 

I recently repowered with 370 cummins engines and am having problems reaching maximum RPM the props are now 4 bladed 28 x 27 and I am within 200 RPMS of reaching 3000 RPMS. Can someone with a like powered 46 Grand Banks supply me with there specs. Thanks in advance Dick von Roth "Grumble" 46' Grand Banks Classic #97

I recently repowered with 370 cummins engines and am having problems 

At 07:31 AM 3/8/02 EST, you wrote: > I recently repowered with 370 cummins engines and am having problems >reaching maximum RPM the props are now 4 bladed 28 x 27 and I am within 200 >RPMS of reaching 3000 RPMS. Can someone with a like powered 46 Grand Banks >supply me with there specs. Thanks in advance > >Dick von Roth ========================================================== Dick........repitch to 26" and you will get up to 3000 RPM. I would hate to see you do that to new wheels for you will wreck the efficiency for you will no longer have a true pitch. If you put on new 28 X 26's you would go faster than with the repitched props, for they can only twist the outer 1/3 of the blade. Who recommended that size wheel????? Will Cummins OK the RPM for purposes of Warranty?? Will you do alot of high speed running? Do the engines smoke? Of course you will get more speed at the top end with smaller wheels but you will achieve trawler speed at lower quieter RPM. . Captain Al Pilvinis "M/V Driftwood"--Prairie 47 2630 N.E. 41st Street Lighthouse Point, Fl 33064-8064 Voice 954-941-2556 Fax 954 788-2666 Email yourcaptain@earthlink.net Website http://home.earthlink.net/~yourcaptain