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@tpenfield Do they still have D'angelo's there? John's liquors (Miller High life long necks special, had to go in the back cooler to get them) and steak and cheese were the go-to's in Falmouth for me way back when...

This is an awesome thread, thanks guys

Ahh, no windows computer here...

True, but 0.6" at WOT probably isn't an issue. No turbo that you're not telling us about, right? I'm still looking at the initial screen shots, I don't know if those rec files are readable without diacom. @muc I was looking at the timing at 3k rpm (29') vs 4k/4300 (20')

You'd be able to tell if the reluctor on the crank slipped...

I don't... He was saying he thinks he has increase fuel consumption because of his vacuum being low (and posted a table). I didn't think that was his problem

I don't suppose there's a cam position sensor on this?

That doesn't explain your fuel consumption. Your vacuum looks ballpark once you get off idle. And unless you have the specs, you're just guessing that it remains off throughout the rpm range.

Here's the exciting conclusion: https://forums.iboats.com/threads/cant-sync-my-2003-25-hp-2-stroke.781728/

@muc all tongue in cheek, just letting op know that you're legit ;)

He's a merc tech, has access to super secret classified info (seriously)...

Why do you think it's struggling to breathe? If the throttle isn't opening all the way And the timing is retarded, that seems like something the PCM is doing on purpose. I'd like to see a graph of demand vs throttle opening at WOT throughout the rpm range. I didn't see any knock sensor data on...

Oh, gotcha. Looks like everybody was thinking that was relative/gauge value. Not sure what "arbitrated" TPS means? Is it drive by wire system? Also, looks like these values are at steady state conditions rather than WOT (otherwise demand should be 100% the whole time)? In other words, if you...

Vacuum should decrease with throttle. At WOT it should approach zero.

Your manifold pressure is going the wrong way. At idle was the vacuum steady? You said you replaced TMAP, is that the MAP sensor? That would be my initial thought, or intake restriction somewhere. Is your throttle opening all the way? Fuel trim is good, which means that whatever air it thinks...

So, another one. This is more than mildly concerning I think. https://www.cnn.com/2026/07/30/tech/anthropic-ai-models-break-out-hack

Much easier when hanging, but possible without. Raising/lowering the front with a hoist is much quicker than turning the adjusters individually a turn at a time.

Where did the mercruiser #'s come from? scott's link looks like the VPs are closer to your current setup than the stock OB setup. Anybody have the skill to overlay all 4 graphs? Ted, do you have a GPH graph of your new setup yet? Also interesting on the VP test that there isn't too big of a MPG...

1. Do you have that graph from your old setup? 2. I'd like to see an MPH x Time graph...wonder if they'd still overlap EDIT: Oooh... Space the dots out every x seconds, and keep the rpm v. mph on the axes.

Only thing I don't like about removing the lags is messing around with a penetration into wood. Mine are gooped in there pretty good with 4200 now.