berns29scarab

Have a 27 Kryptonite w a 28p bravo 1, 1.50:1, and a merc 500efi w the Arizona speed and marine flash. Only seeing about 5000 rpms and 72 on gps. The boat supposedly ran 81.2 WITHOUT the ASM flash and a quicksilver 14 3/4x28 @ 5250. Ideas? Thoughts? The boat pops on plane effortlessly.

bbladesprops

What QS propeller?
Your slip is a touch high.

Brett

berns29scarab

Brett, all i know is The boat supposedly ran 81.2 stock "without" the Arizona Speed n Marine flash and a quicksilver 14 3/4x28 @ 5250. Now im running it with whats labled a 28P bravo 1 and only seeing 5000 rpms and 72mph...what are your suggestions.

bbladesprops

Your slip is about 16.5%. A touch high. (the Lab recipe could be off)

The slip would be 6% lower with the other numbers and the fact that the engine was able to pull higher R's with a tighter prop also amplifies the weirdness.

Either not as much HP now, something else has changed on the boat or............."supposedly ran" isn't fact.

Brett

berns29scarab

Brett, what do you recommend we do from here.

bbladesprops

Sorry Bernie for not calling.
I'll try to get ahold of you tomorrow.

Brett