1998 Johnson 225?

Airslot · #1 03-30-2009, 07:33 PM

What kind of fuel burn might I find from this beast. Pushing a 22'er?

12? 14gph?

Thanks,

csvencer · #2 03-31-2009, 03:23 PM

You talking at cruise or WOT? I always thought the rule of thumb was every 10 HP was 1 GPH at WOT, so 22gph.

-Svence

Airslot · #3 03-31-2009, 06:19 PM

Sorry, PUI again

, looking for cruise numbers....

THEFERMANATOR · #4 03-31-2009, 08:48 PM

Expect fuel burn numbers of 15-18 GPH at a 4000 RPM cruise from that engine, and right around 25-27 at 5800. The older 88-92 engines are MUCH better on fuel, but the later 93+ have pretty pretty trouble free and reliable with the exception of block rot if they aren't flushed out good.

Airslot · #5 04-01-2009, 05:12 AM

Wow...lotta fuel flowin there. Probably a deal breaker for me. Just can't stand the thought of 15 gph cruise to go tbuing with the kids. Funny...wouldn't be such a big deal on feeshin trips

THEFERMANATOR · #6 04-01-2009, 09:28 AM

It's actually not horrible fuel burn for an engine that size. A 150 EVINRUDE of the same era cruising at 4200 can burn right at 13-14 GPH. My cross breed 225 burns 11 GPH at 3800 according to my fuel flow meter, but it always says I've used more fuel than I actaully have. Around 4000 I'm pretty sure I'm burning about 12.5 GPH though with it. The 93+ engines have finger ports in them which boosts the power output, so OMC made the exhaust smaller in them to help clean-up the emissions. The smaller exhaust makes it work harder at cruise, but the finger ports allows them to make the HP that the older engines made. Gotta love the EPA don't ya.