kurtis500

@horton "I am 100% sure that you have no idea what the hell you're talking about. The fact that you aggressively assert your opinion in a web forum for which you have zero practical knowledge knowledge is ridiculous. You are a troll." In your rage post (can tell by the spelling) you just proved what a couple of people have been saying.. you think your skiing ability gives you knowledge to talk about things you really dont have knowledge of. And then when its pointed out you throw a fit and point out their skiing ability compared to yours in an attempt to shut down the conversation... lulz Here's what the guys that built the motors did to make it easy for everyone. Using dozens or more dyno pulls with real dyno sheets (not a 38 off skier attached to a rope behind a boat) they are able to set a minimum octane required. All done by reading the dyno sheets, knowing what the motor is made of and adjusting for a varied amount of conditions it can be ran in.. They then tell you what to put in the gas tank... easy... If you put in a lower octane than THEY SAID then you run the risk of the motor retarding the timing and running less efficient. If you put 100 octane in it you wasted your money and gain 0 hp. Serioulsy, this is decades old knowledge. Curious...do you also have the ability to sense all of these? because they happen.. -ski flex -rope stretch -ski tow bend -prop shaft twist -prop blade flex

@horton "So are we're insinuating someone who hasn't run 38, (this year alone yet) has no objective opinion or capability to comprehend or post legit judgement/observations/facts on the relevance of higher octane fuel and shorter line length??? Annnnd are we also insinuating all shorter line skiers have the mental superiority to those that do not??? " And here you go again...in the same thread. I admit you know ZERO about octane levels and how it relates to engine and boat performance even though a few have explained it well already. We are suppose to believe you can sense octane levels but not tell us how much your ski flexes, the rope stretches, the ski tow bends, the RPM of the prop shaft and how much it twists under torque, how much the prop blades flex and the other "microscopic" changes that occur. Your 38 off runs give you no magical powers to sense octane. sorry... but its been a fun read

@horton Explain what that has to do with octane? People have been waiting for that answer. Otherwise stick with what you know and dont forget your triple panda

@horton you definitely need to give yourself a triple panda

This HAS to be a trolling thread... The assumption is someones skill level gives them insight on the octane level used in a boat. LOLOLOLOL

Octane doesnt make horsepower.. Octane is the fuels resistance to detonation Motors have no idea what octane you put in it. Today they are setup by computer and follow a specific timing curve and are advanced at a degree that follows the computer. I've set these up in my own high HP applications. Its complex and risky messing with the computer timing setups and the OEM's lock you out so you cant screw it up and void your warranty. The computer has sensors mounted to the engine that "listen" for knock or detonation. When the computer senses it the ignition is retarded per the computers pre-set instructions to avoid detonation. Otherwise the motor follows the exact same timing curve with 87 octane or 93 octane or 100LL. The motor doesnt know. If a motor is designed with higher compression or boosted applications that require a 91 or 100 or 110 octane as a starting point than you have to use the minimum. If the motor REQUIRES the 91 and you put 87 in it you risk the motor retarding the timing on its own to stop detonation. If you put 91 in it and it runs fine why would you put 110 octane in it? More power? NOPE! Unless things have changed all the crate motors in these boats are run on an open loop setup with the ECU for the injection. That means it doesnt use an o2 sensor. O2 sensors are a royal pain in a butt, I tried and burned up 8 over the years from inversion off the exhausts. You need headers and a long distance from the transom to even think about using them. By using the MAP and other sensors the motors run just fine and dont need it. Unless your running high elevation and gas thats been sitting around forever the motors are designed to NOT run on the edge and detonate themselves leaving you a bilge full of hot metal.

The science and dyno work on octane is WAY over 30 years old with multiport or tb injection. Carburated motors? its older than your grandparents. The variables that go into this are so many its hard to count. Anyone have a weather station to tune with? Thats just the start.. if not let the computer do its thing. If the computer senses knock it will retard the timing..thats how it works. This will lose power..... but when have you ever noticed in a heavy ski boat?

if you completely ruptured the tendon thats a big time injury. Good luck on the healing. I rehabbed my knee surgery with a guy who had a patellar tendon full rupture. A big deal to repair and rehab but full recovery was almost a sure thing. Hopefully you have the same outcome.. Good luck

Is it the same as the peak age for an NFL quarterback? :open_mouth:

@horton 7k? You must be in Cali

Doesnt the tv show Psych feature a pineapple in every episode? Any chance the person who made that decision watches the show?

So sad to hear, prayers for your family It was good to see him get another holiday season with his family.

I run a 454, 1500 watt stereo and similar accesories. I have always run dual batteries on a switch. When we stop and have the radio on for a while I switch to one battery. Relying on one battery to turn over a 454 with and efi is more risky than if it was a carburator. You can run a second battery with a solenoid setup. If the Tige has one battery Id say you've done well without getting stranded after using the radio and etc.

@fastguy888 that is a heavy boat but good for surfing or wakeboarding I guess. You're right to point out the boat has no way to regenerate power, that only draws power. Add in the obnoxious steroes... I wouldnt venture out on lake Powell with it. of topic question...Taycan good or so so?

A variable pitch prop would be nice if they could ever get them to fit on a 1" or 1 1/8" shaft/strut setup. A low pressure supercharger does wonders at all rpms. Pulls out of the hole better than a turbo and higher torque/hp across the board. Just have to watch the gas gauge closely.. Boats could use more efficient transmissions to convert the power. Mine has a tranny in it and a few friends have them as well. (Turbo 400) With a midship engine I dont see anywhere to put a transmission in the tournament boats unles the made the v-drive/direct drive and tranny in one unit. The CVT would work imo