I have been thinking about this and can't quite figure it out. My 311 Kaama ran 65 with 375hp/torque? spinning 16.5X26 4 blades at 5000. The 30's I had would not even work on my boat. Doesn't sound like you have found the right prop yet. You need to find a set of 16.5X26 4 blades and I bet your boat would wake up. Bring it up to Torch Lake. My old 311 is still here and I could snag the props off of it to try on your rig. Glad to see you up and running.

It would be great to compare the two boats
Jeremy has different mounting plates on the transom I think, possibly resulting in a different x dimension?

the gear ratios could be different between the two boats ?,

and it would be good to compare the trim settings ( drive angle vs. indicator position)

EDIT - and a pic of the two boats with their rooster tail would be Formula Inc. archive worthy !!

I wanna come too :D

Ramb

I think the next step is to check the drive to make sure that it really is 1.1. From what i can read on the tag( was painted over) it says 1-1 but i want to check it.

I have thought about the X but if it was higher the boat should be faster. With the big transom plates the drives would be mounted higher. The only thing that could solve that is a BIG diameter wheel Right?........

Josh- i will give you ring today i will be going up there for a wedding in Oct.

october...Torch lake will be frozen over by then :evilb:


rotating the crank 10 times and counting the prop rotation could confirm the overall ratio. should be 1.5 with tranny and drive combo right?
and +/- up to 20% from that if gears are changed?

Ramb

Correct. But if i spin the prop one revolution the H-bar inside the boat before the trans should spin one revolution. If it does not then i need to find out how much -/+ it is in the drive. it could be any where from 8 to 20.The trans are 1.54

Looks good! Glad to hear she's up and running. Hopefully it won't take too long to get it dialed in. Makes me wonder what my 311 would have done if I had done some serious prop exploring...

Well i tried a pair of 17x29 4 blades mon and oh boy!!! 67.9@4800 with 5 people and 3/4 of a tank at 0 trim. It is time to make a solo run with full trim and see what happens:drink: I am seeing light at the end of the tunnel:party-smiley-048:

awesome news Jeremy

you are smiling now right ??

we need video this next time.......

Ramb

are you gonna be my camra guy:drink:

got your message
haven't called back yet obviously. your post reminded me as i sit here sat night...sorry

I am busy this weekend, but will be boating to saugatucik thursday night if you want to join us
I'll be camera guy

Ramb