100 mph Prop & gear combo.

[Lake X Kid]

What is your 100 mph Prop?

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[hellbents-10]

1.62 32 101mph, box stock 300xs.

[engineermike]

23’ eliminator, 400R, 28” max5, 1.75 gear, 98.5 mph

[JPEROG]

28' Skater 1.75 34 Dewalds 6100 107mph-people and fuel
20' LCB 1.60 34 Merc CNC 5 blade 6100 111 mph-people and fuel same weight but a 30 Drag 5 6400 100 mph. We are waiting to test some Max 5s, a smaller CNC, and MAD EFI 4 blade thru hubs.

Its all a puzzle for each boat. The new 5 blade thru hub Dewalds picked up 5 mph on my friends 28 skater Vs the 4 blade over hubs.

Propeller technology is where you need to invest for best new speed returns.

Joe

[Chaz]

Seein's how you can only twist and bend an ear, just so many ways before you run out of "technology". The old adage of : torque x rpm / 5252 = HP will get ya to the next 5 mph and the 5 after that ... and so on ;)

[Will hedrick]

300x 30 hill signature drag 4 6500 @ 108

[CI STV]

Those charts are obviously based on a certain amount of slip, which can vary drastically from one hull/setup/prop design to the other. There’s many ways and a myriad of props that can get you there, IF your boat is capable of running that speed.
So far, I’ve been to ~100mph with a 24 Yamaha, 22 Tillman and a 20P Ronnie Gilbert, all with a 1.78;1 ratio, at anywhere from ~8750-10,000+rpm. I’m seeing slip numbers vary from 6.5% (yeah, I’m not kidding) to 9% between those props depending on how low my motor is set (between 3/8 - 3/4” above the pad, so I’m thinking I need a little more height...:rolleyes:)
Those numbers were taken from an AiM Datalogger, BTW, so the mph is GPS measured, not conjecture.
Pretty sure I could get 120+ with the right cleaver on it :rolleyes:. But I’m more into ET than MPH. Long WOT running is simply too damn hard on hard to get parts, IMV.
So far, those are my 100mph props. She gets there fairly quick too…

[Dave S]

Push Mower..... got the old mans heart...... goooing........:rolleyes: Pist.......1953 searies......still kicking.... like a 15 year old.......Full speed ahead..... a nip in the pocket.......:cheers:....pist

[Dave S]

10/15 faster than most..........pist..........

[mikesufka]

28' Skater 1.75 34 Dewalds 6100 107mph-people and fuel
20' LCB 1.60 34 Merc CNC 5 blade 6100 111 mph-people and fuel same weight but a 30 Drag 5 6400 100 mph. We are waiting to test some Max 5s, a smaller CNC, and MAD EFI 4 blade thru hubs.

Its all a puzzle for each boat. The new 5 blade thru hub Dewalds picked up 5 mph on my friends 28 skater Vs the 4 blade over hubs.

Propeller technology is where you need to invest for best new speed returns.

Joe


Interesting on the 5 blade Dewald - I'm running 14 3/4's X 32's on mine - I couldn't spin 34's. Would like to try 30's. Run with 300X's on a 28 Skater also. Best speed is 111 MPH.

MDS

[JLanier571]

Hey Joe, Is that on your sport deck or fishing deck LCB?

[scott reierson]

105-112 mph 8100-8300 26 Yamy drag STV NN/15" 280/1:87 sporty

[JPEROG]

Hey Joe, Is that on your sport deck or fishing deck LCB?

Sport Deck--still a work in progress but its going to be an excellent river boat for sure.

Joe

[ModVPinND]

106-108, 99 Mirage, 95 OMC 3.0 w/Brucato and L2 w/Bob's, 30 Mazco RE cut by Kevin at R&R to ET

[Dave S]

Fack checkit....... Eddson beat ya alll