Gas consumption z1/z3 taps 3

[dukesofhazzard]

Hey everyone, I was out last weekend on a 2018 axis a22. Beautiful boat, I really like the wave, we tried with and without the wedge. However we used a full tank of gas in about 4 hrs. I couldn't believe it. Around 4000lbs plus of ballast. still had room in the lockers to store stuff. like I said really nice boat. But I am floored by how much fuel we used. We were over 4000 rpm without the wedge and upwards of 4600 rpm with wedge. He said he has hi altitude prop. I have a 22ve load it pretty good not 4000lbs but its loaded. I have a 1235 prop and surf is right around 2800-3200 rpm. I can go all day on a tank of fuel and my tank is smaller. I guess my question is what are you guys with z1 or z3 and taps 3 seeing for fuel usage. Please be honest!! GPH? thanks

[Germaine Marine]

7-8 GPH

[dukesofhazzard]

Thank u. Now what about the z1 z3 guys. Like I said I bet we burned 15 gph

[bsreid]

You shopping for a new boat? I’ll keeo an eye out if you are. How big was the tank in the 22?

[bsreid]

I honestly try not to keep track... 4 hours of solid surfing puts us no where near a full tank and my 440 is maxed with current prop.

[UNSTUCK]

I can't remember right off, but I want to say I put in $105 in fuel last time I filled up and that it was $3.09/gallon. I'm almost positive we put 6 hours on the meter using that amount of fuel. So that put our RZX with a 440 at 5.5 gph. I'm happy with that!

Edit: This was not solid surfing, and included kneeboarding and wakeboarding, a small amount of cruising and some idle time. More representative of a typical day on the lake.

[UNSTUCK]

I thought this was an interesting video. This is from the local Centurion dealer so of course they are pushing their boats so there is biased information, but I believe they ran a pretty good comparison.

[Monesty]

2018 RZX 3 440 motor surf prop. I am burning about 6 GPH with mostly surfing and a running around, fully loaded with about 4K in ballast.

[Thegerman618]

depends on weight. 16 Z3 with the 400 running 5700lbs and 5 people closer to 9 gallons an hour realistically and that was none stop surfing. Burned almost a full tank in 5 hours give or take

[dukesofhazzard]

@unstuck. Yeah I watched those videos and that’s what got me thinking about what boats are actually burning. I’m not looking for new boat now. But one would like a z3 or another brand with a surf system. But and Malibu ruled out for sure. Thanks
@Thegerman618
Wow that is a lot of weight!!!

[cnote]

Malibu/axis gated wave and wedged with ballast, yes, you're going to burn an s ton of gas. nice wave though.

me: r23 with surf xl ballast and 900# lead we burned about 25 gallons in 5-6 hours, crew of 4, ~700#. and just surfing. 2419 prop.

so, yeah much better than a bu

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[Thegerman618]

I am not a Malibu hater by any stretch but....anyone surf boat manufacture can say they are more efficient than Malibu.
At surf speed they run around at about 4200-4800 RPM at Surf Speed.
Add in the 'Wedge" that they say simulates ballast, but your basically dragging an anchor behind the boat
Lastly is the yaw induced by surf gate extremely inefficient. (surf a listed wave, then slap a suck gate on tell me you get better fuel economy)

Nothing against Malibu at all they pioneered the system and still make nice looking wave. I know people with brand M boats that will big weight over factory are burning 90 gallons in an afternoon. Simple math says they are burning closer to 15-17 GPH.

Centurion 257 with 7K lbs of ballast in high altitude on a factory prop....right at 10 gallons an hour respectively. same boat at Sea level on a properly pitched prop, dropped it to 7-8 GPH
Never been on a Nautique as I cant even afford to look at one so why bother testing one.
Spent a good day on a Supra, was impressed though I only gave money for fuel and didn't see what was burned for the day. Based on RPM I would say its the ladder of 8 GPH.
Tige is probably the most fuel efficient but it would be a stretch to call it "Far and away the MOST efficient" either way who bought their boat based on fuel economy anyway, most of us probably didn't even ask what the burn rate was on these boats, and honestly who cares. If I told you Heyday burned 4 GPH would that sway you to buy that boat? Probably not that boat has a face only a mother could love.

[Shaver lake z3]

I have a 16 Z3 with surf XL and 700# lead. Switched to the 2419 last season made a world of difference on gas.

[redd71]

I have a '17 RZ2 with 1615 prop. We have around 115 hours on it. It consistently burns 5.5-5.8 GPH. Lake elevation is 3900 MSL. Surf speeds around 11 and 3200-3400 RPM. Heavy surfing and a little wake boarding.

[sandm]

If I told you Heyday burned 4 GPH would that sway you to buy that boat? Probably not

wait... I just tested one. it was the only boat I could tow behind a prius....