what happened to Speeds and Set ups

[Ally 1988]

I have question about setup because I don’t think I’m getting the full potential out of my boat. But then again maybe I am. This is the setup 6 ½ inches set back. Nose cone even with pad on a Allison X/B 2002 2.5 260 on 20 inch mid. prop is a 29 Mazco turning it about 7300 rpms Lower unit has Bobs Nose cone and Low water pickup. It seems I should be able to turn it a bit harder than this am I missing something the other thread made mention of different setbacks but I did not make note of these.
Would you go with more setback more or less on engine height which is about all I can do at this point should I invest in more set back and what is the advantage of doing so.


Thanks for any input.

[MTCM]

Even with 10% slip that boat should be running right at 100mph with the RPM and wheel you turning. I say thats damn good for an XB if you running a stock 260. What kind of ECU you got on that 260? How about the rev-limiter what is it set at, or does it even have one?

[Ally 1988]

It is A CDI rebuilt a 48 last time i had a gps in it 7100 rpms @ 92 mph. No rev Limiter. Last sunday No Gps but 7300 rpms. I think there was some more left but it did not fill comfortable it really wanted to get squirly.

[Ally 1988]

Im curious about setback and its benefits I saw some with more just can't remember how much in the other thread.

[CDave]

10" seems to be the norm on XB02's. Have you asked anyone at http://pub22.ezboard.com/ballisonownersmessageboard ?

[Ally 1988]

But I did find the other thread. Yeah the range seems to be from about 6" al the way back to a much as 14" just was wanting to find out what was the advantage of having more set back.