Magnum Dyno-boost

Anyone ever tried 1 of these out?
Legit?
Waste of money?
Blow your motor?

https://www.magnumtuning.com/en/detail/dyno-boost-boat-performance-chip/Mercury/115-Optimax?gclid=Cj0KCQjwh8jrBRDQARIsAH7BsXcAUQZQpjDpixO8SBnfs1uFH0xGxZuQ32siIUUo14JefRQocy88BiwaAiahEALw_wcB

I personally wouldn’t fool with it. I’ve seen them on cars and motorcycles but never boats.and it looks to me that’s not even Bluetooth. you would have to use your laptop. Don’t think you would get that much out of it. And if you leaned out too much you would burn a cylinder.

I am fragile.
Not like a flower.
But like a bomb.

Why is bluetooth important?

let me say I’m no expert. Maybe Chris will put his nickels worth in on this. My personal experience with them is on a 06 Harley.& a Couple people I know on their diesel pickup trucks. The only reason I did that was because I changed the exhaust and intake and it wouldn’t run for crap. And it did make a big difference. It was nice just to pull out the phone to do the tweaking. That unit does appear to have some type of adjustment on the panel. I would not want to be dragging the laptop out on the boat. But reading the reviews. The ones that appeared to have the big performance benefits we’re the in boards. Especially the diesels. If you look at the graph it don’t appeared to boost but a couple horsepower. If you did get a big horsepower boost. To maximize the benefit you would probably have to re prop. I repowered a 22 ft bay boat. Had a 175 and put a 200 on it. That 25 horse did not make a tremendous amount of difference. More out of the hole but really nothing at top end.

I am fragile.
Not like a flower.
But like a bomb.

Yeah, I have a fuel injection controller on my 06 Harley but I don’t know the performance increase if any. It was already on there when I got it. If it would add enough boost for me to re prop that would be great. More prop would be cool. I’m just worried about the longevity of it and if would possibly cause problems with the motor years down the road. I don’t think it requires a laptop. I think the RS 232 cable goes between the central unit and the remote panel. Thanks for your input. It may not be a popular item with outboards. If I try it out I will post my review on here.

from what I understand, on naturally aspirated motors most of the ‘tuners’ get their increase by creeping up closer to that ideal 14:1 air to fuel ratio. The problem is the closer you get to that ideal ratio the closer you get to running lean which can cause all kinds of damage.

On turbo motors, many stock setups don’t use all the boost the turbo can make. So, IF the fuel system can deliver more fuel, you can tell (via the computer and waste gate or recirc valve) the system to use more boost. More boost is more air. As long as the fuel system can keep up, you get more power. My Subaru WRX went from 265hp to around 300 and solid torque increase to match.

I don’t have any idea how supercharged motors manage their boost? Anyone know if they use waste gates or similar?


17’ Henry O Hornet w/ Johnson 88 spl
26’ Palmer Scott project hull
14’ Bentz-Craft w/ Yamaha 25