So, he's up on the limiters if the tranny is slipping?
Gary text me.
He hit the tach recall after the run because he felt the boat sliding sideways. Kept in it and ran 175.
What slips? Clutch? Torque converter? Thanks for the pic!
well you should put your ear closer to the ground... Mother Merc is not as bullet proof as the marketing would suggest.
P3 runs different gear boxes. BAM I think. Mine are only rated at ~700-750. Guys that run 700’s up to stage 2-3 start to have issues.
clutch plates slip and then the springs grenade.
For sure. They definitely have their down sides - specifically docking or getting on the trailer! HUGE pain in the ass. But for running hard...no slippy.
There was a 40SS Skater, Out of Control” that had some crazy 3 speed in it. I think there’s a video on it here someplace. I won’t even try to find it on my phone.
Yea I remember that boat. I believe it had 2500 hp motors. NUTS ! I’m not actually sure how many gears the class 1 boats are running. 2-3 if I remember correctly.
Correct Al Burns' Skater. Couldn't get a close enough ratio transmission, it would drop off the rpm and lose to much boost. Then it would hit hard and break something. At least that is what I was told by someone close to the family. I thought it was a good idea if the ratios were closer together to keep it in more of a linear boost.
www.riverdavesplace.com
I mean........that shifting is the coolest. Awesome.Found it.
Quick Video we did for Al Burns to sell his 40 Skater Out of Control
Take a quick Test Drive in Al Burn's 40' Skater "Out of Control"
Yea, it’s cool but seems very inefficient. Huge lag time in shifting
Do they run again tomorrow? It would be great if they had a chance to do some tuning maybe to help with the slip. Also, is it a mile track there? I think it is, maybe even a bit longer.
I don't think they run again. It sounds like it is a close one between Predator and Team Yahoo.
No matter what it was cool as shit.
Oh yea. Totally rad boat. He was Soooo frustrated. Wanted to be the first to 200
Is it still an ASD boat?
Turbo boats are the best. So fucking coolFound it.
Quick Video we did for Al Burns to sell his 40 Skater Out of Control
Take a quick Test Drive in Al Burn's 40' Skater "Out of Control"
Idk myself I’ve always wondered why not even powerglides, short first gear to pull big wheels, with a real tall 2nd for the go baby go speed.
Yep, and tractor pipes!
I don't have a clue how the boat transmissions work, but that's never stopped me from posting about subjects which fit that description.
Yeah, on a roll
The racing guys lose transmissions from re entry, that’s why a good throttle man is so important, also why most race boats run crash boxes.I don't have a clue how the boat transmissions work, but that's never stopped me from posting about subjects which fit that description.
But seriously, the transmission in the Spirit of Rett, the AA/FS I crewed on that set a new land speed record of 417.637 MPH in 2010, was a Liberty no-lift air shifted five speed with a five floater mutidisc clutch. It shifted fast and hard. It's a single engine vehicle, and the engine produced 2,370 HP on the Reher & Morrison Dyno.
To the best of my knowledge, there's never been an issue with excess slippage in the car's driveline.
So I was thinking about why and when transmission slippage would occur on the boats, and I'm guessing the answer might be the shocks produced by reentry into the water as the boat gets airborne. Even though the throttles are being manipulated, is there enough of a response lag by the throttleman that the reentry loads are significant? Or does the transmission slippage occur under constant load conditions?
Do those guys run realtime data gathering sensors? We had CANbus RPM sensors on the engine, transmission, and locked differential, and slippage was about 3% overall.
CANbus data on the streamliner was stored on an SD card and read after each run. In IndyCar, digital sensor telemetry data is sent to the pit box and stored on laptop hard drives, but also interpreted in real time by the race engineer. The engineer informs the crew chief about the info, and the crew chief decides what to do, for example, about moving the center of downforce pressure forward or aft by adjusting the front wing and tire pressures during pit stops.
That's awesome, congrats to Gary. What was the 2nd place boat? The yahoo skater looked pretty fast when I saw it run, but I was only able to see the first 15 or so boats since I needed to head to the airport.
