First run of the season.
 

Well....we finally got some decent weather here in the great North West.

Here is my first run of the season: 103.8 on my Digital GPS!

Thank-you Dustin Whipple!
Thank-you John of Eastside Offshore!

Chris

Man sometimes living @ lower latitude doesn't help. It's cold as s**t in SLC this spring, but thanks for burning the CO2 to help warm things up!
Great #'s!! That's haulin mail!
Hope to sell soon (Test drive for 1 last burn) then maybe get into a cat in the next year or so so I can see the century mark.

That's starting the season off with a bang.
Congratulations, Chris.
Regards,
Steve

Fantastic number. Congrats. Let the season begin.
I2D

Wow, very impressive. Still ice on the lake, cannot wait to try the new boat.

Have a great season

JF

desert storm shootout !!!:evilb:

Not going to Desert Storm this year...my winter was financially brutal...things are going great again...but I am in financial recovery mode.

The 103.8 mph speed was done with:

SCX upper...SC lower
Prop shaft 3" below the bottom
1.35 gears
Merc Lab 30
6150 rpm
Calculated slip of about 18%
Large (89 pump gas friendly) pulley on the supercharger

The boat was rock solid...I could let go of the wheel at top speed...conditions were ideal...62 deg...6"-1 ft chop on the lake.

My boat (open bow) seems to like slip in the high teen's to handle well on the top end.

With further prop testing...I think I can probably do a couple of mph better.

I will be trying a Merc Lab 31 as well as some offerings from Hering.

For inner-tubing props...I will be testing P5x's in about the 27 pitch range... along with a 26 Maximus.

Chris

nice run chris. I plan to hit the water the weekend for some more testing. I'm sure that I 'm looking at a 1"drive spacer soon. Don't you have one laying arroud??? My boat is 1 1/2" higger in the water with the new motor. I must have cut 300 to 400 pounds out of her.

Braydon,

I will look and see if I have a 1" spacer...I have started to organize my garage...and put things in boxes...so I now can't find anything :lolhit:
From looking at my test tables...I think your setup will end up something like this:

600-650 horsepower

1" spacer
28 Bravo
5200-5400 rpm
80-82 mph

or

1" spacer
Merc Lab 30
5300-5500 rpm
82-84 mph

These are the speeds I was reaching with that amount of horsepower.

They are also the same aproximate speeds...and props...that Ned (05R1)...reaches with his boat...with aproximately the same horsepower (600-650 hp)

Chris

I'm still running in the low 20% range in slip. The last run was with my 26p p5x at 5750 and 75mph.

Spacer time!

I do not have one...I sold it to Ned.
His boat runs much better with a 1" spacer also.

Let me look around and see what I can find.

Chris

i have a 1/2" spacer i could sell you but i would suggest a 1"

Great results! That looks like a really sweet all-around combination you have developed. Now you have the summer coming to enjoy it!

Hey Chris, I just reread the post and realized I did't tell you that.....
THOSE NUMBERS ARE AWESOME!! I've been reading alot of old posts about prop testing to see where i need to be at. Trying to get my head wrapped around it again. I quit testing last year and left good alone. This year is the way it is staying, so it has to be right. How much less does your boat weigh being wood free than my 06? Also, Do you have or use any trim tabs at any speed? BTW, GREAT Numbers and your setup is VERY nice!!

Derek

Well, I just looked at your pic again and see that you do have tabs, but would still like to know if you use em?

Thanks, Derek

I have the tabs mounted 1" up from the bottom of the boat.

Best speed/stability is with the tabs set parralel to the bottom of the boat.



Chris