Drive spacer question?
#2
Charter Member # 55
Charter Member
Had high propslip and very little bow lift reaction with trim. Added another inch of spacer and it helped quite a bit.
Picked up 3-4 mph at cruise speed and 1-2 mph top end. Carried the bow better and did not run as flat/wet.
Propslip went down about 5%
Picked up 3-4 mph at cruise speed and 1-2 mph top end. Carried the bow better and did not run as flat/wet.
Propslip went down about 5%
#3
Registered
I moved the prop shaft up 1/2 inch by taking by replacing a 2 inch spacer with a 1.5 inch spacer. The prop slip (w/ 2 inch spacer) was in the single digits at WOT and engine rpms were below peak power. The result (w/ 1.5 inch spacer) was more slip, rpms and speed.
#4
My x on boat from what I can measure was two inches higher I can get on plane but no mid speed or top end slip rate was 38% ouch way to high found some two inch spacers will try this weekend let you know results. On a side note the boat used to have big power in it at one time now since I purchased came with 500 efi I would only assume that was the reason for high x on boat would have perfered if they just bought shorties left x alone but is what it is