Another Prop to the Collection

[thedeuceman]

i just sent the payment for this one 

[V153]

Suweet! Looks just like my Lightspeed, sans vents. Good choice Joe.

[David CVX-16]

Just needs a little touch up on the edges. You know it works Joe as you tried my 20" pitch Raker on your GT-150 at last summer's Glastron meet and it went 2 MPH faster than your previous prop - 49 MPH.

[thedeuceman]

Just needs a little touch up on the edges. You know it works Joe as you tried my 20" pitch Raker on your GT-150 at last summer's Glastron meet and it went 2 MPH faster than your previous prop - 49 MPH.

I expect with more time, and the adjustments I made to  the trim tab I will break 50
When I borrowed your prop it Redwing, I had only been running with the power trim on that for a few hours.
In the weeks that followed I got a really good feel for it.
and I got it for a good price


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[V153]

Yup. Cain't beat trim. Now ya gotta raise that motor a hole mebbe.

[thedeuceman]

Yup. Cain't beat trim. Now ya gotta raise that motor a hole mebbe.

I think it's up 1 now, not sure the steering cable can Handel more :/
And I don't See me throwing down for hydraulic.


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[Hyperacme]

Even with my motor almost all the way up and Hyd. steering my CV does NOT like to go over 53 mph !
It will do it ... BUT it's a hand full !
I believe Mark S has had his GT up there ( his tag lists 54 mph on CGOA ).

There is a fix for the problem ....
It's buy a CVX16 !

... LOL

[thedeuceman]

I'll be happy being able to say I have a 50mph boat without lying.
Prop will be here tomorrow. I'm hoping to have a chance to get out Sunday and try it out.
Oh Dave... Sorry for hijacking yer thread !


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[David CVX-16]

No problem. Hope you reach 50 MPH.

[MarkS]

TBT I rarely go over 52mph now days, I like to stay on this side of sanity.  Somewhere around 53-54 is where it gets crazy!

Prop Test Results to Date;
Mission is to get WOT at 55-5600, with max SAFE speed. (Looking for 55!)

Starting point/baseline - 1st Prop - OMC brand 12 3/4 X 21P ALUM - WOT 5400 @ 54MPH - Note: gets a little hairy over 53mph, nature of the hull design as I am told.

2nd Prop - OMC SST 12 3/4 X 21P Stainless (teflon coated) - *WOT 5200 @ 52MPH - Note: more left on the table in the speed, *chine walk gets too severe to continue. Porpoising at lower speeds if trimmed above 1/4. Probably going to be the fastest/best all around, if the set-up can be refined to control the boat at top speed.

3rd Prop - OMC Raker 13 3/4 X 22P Stainless - WOT 5100 @ 50MPH - Note: Too much pitch & bow lift, didn't like much if any trim, porpoise and chine walk prevalent, much better suited to CVX style hulls with pad.

4th Prop - OMC SST II 13 3/4 X 19P - *WOT 5800 (pulled back, was still winding up!) at 48MPH - Note: not enough pitch, might be a good prop for heavy loads or pulling barges.

5th Prop - Power Tech PT03(?) 13 1/5 X 19 w/custom cupping and pitch added - WOT 5200 @ 48MPH - Note: Stern lift created by this prop gives a whole new "feel" to the boat, thought we had it here. RPM and MPH just not where they need to be.

Back to props 1 and 2, with a Solas Amita 3 13 X 19P as a back-up/spare/emergency. Will probably try raising the motor up another hole as suggested, and maybe add a Bob's True Tracker to help with stability. All numbers posted from recollection, so please forgive me if they're not exactly as stated earlier.

Special thanks to David P. (CGOAMN), & Tim at Performance Props Inc - Soddy Daisy, TN.

[David CVX-16]

Mark, props now to try on your GT-150 are an OMC cleaver, an OMC 2-blade bronze, or possibly a Ballistic 21".

Soon I will be trying 5 props - 2 - 22" Rakers, 2 - 23" SRXs, and the 21" 2-blade bronze.

Do not expect the 2-blade bronze to be as fast as the other props, as it does not have the rake to lift the bow needed to go fast on the CVX hull.