17 RZX2 Exhaust

[viv@1985]

This is our 5th surf boat (2nd Tige) and never had an exhaust 'cloud' like we do with this one. Happens at all temperatures, all the time. During our factory demo ride we were told it was steam, but ours definitely has exhaust smell.

Don't get me wrong, the wave is amazing and I'm working on getting an FAE. Just really surprised a high end surf boat would have this issue...

Anyone else dealing with this?

[chpthril]

During our factory demo ride we were told it was steam, but ours definitely has exhaust smell.

Both of these are normal exhaust gases. Yes, exhaust can and does have odors and steam is an exhaust byproduct in a system with CATs. Cheap surf boats run the same engines, so they will also have this same "issue".

[viv@1985]

Thanks for the reply. It's just odd that this is the first time we've experienced this in 10+ years of surfing both Mastercrafts and Tige's. Don't see this coming from any other surf boats on the lake and its the first thing people notice when they surf our boat.

[Dandy]

Thanks for the reply. It's just odd that this is the first time we've experienced this in 10+ years of surfing both Mastercrafts and Tige's. Don't see this coming from any other surf boats on the lake and its the first thing people notice when they surf our boat.

If you get a chance, check out some of the promo vids from Centurion and Supreme. They have plenty of steam as well. Not trying to beat them up at all, great boats, but want you to see that it is not just your boat or a Tige thing.

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[chpthril]

Since MB, Moomba, Sanger and Supra also run the Indmar Raptor engine package, you can strip away the brand name and feel confident that this is not a Tige thing and likely not even an issue. These engine management system are fairly sensitive. With O2 and the other sensors, if there is an issue with the system, it will likely pop a warning that there is a code.

[viv@1985]

Thank you! Think it's still worthwhile to get the FAE?

[onetogofast]

FAE for the win on any boat!!!


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[chpthril]

IMO, the FAE is still worth if nothing more than a muffler to quite the exhaust. Its so nice to be able to talk with a surfer without yelling and passengers can talk at a reasonable level.

[Shockthis]

I would get a FAE , my wife did a medical research project on CO in boats. Even with a cat system on a boat you still produce CO. When surfing the time weighted average was still high, especially if you take in account that when you are surfing you are breathing harder, so it increases the risk of CO poisoning. Pregnant women while surfing should be concerned as well as you are increasing the risk of exposure to the baby.

After installing a FAE the readings where usually 0 or 1-2 ppm.

We also tested some i/o's (without cats)at 5 mph and the readings where crazy . Small tin fishing boats while trolling on a calm morning were some of the highest readings. I always here of people not coming back from fishing and that they drowned, I suspect that the get co poisoning and fall in and drown( just my threory). They usually always suspect a heart attack.

[ericinmich]

I would get a FAE , my wife did a medical research project on CO in boats. Even with a cat system on a boat you still produce CO. When surfing the time weighted average was still high, especially if you take in account that when you are surfing you are breathing harder, so it increases the risk of CO poisoning. Pregnant women while surfing should be concerned as well as you are increasing the risk of exposure to the baby.

After installing a FAE the readings where usually 0 or 1-2 ppm.

We also tested some i/o's (without cats)at 5 mph and the readings where crazy . Small tin fishing boats while trolling on a calm morning were some of the highest readings. I always here of people not coming back from fishing and that they drowned, I suspect that the get co poisoning and fall in and drown( just my threory). They usually always suspect a heart attack.

I'd be curious if the research was done on boats with Cat's. On cars, the Cats reduce the CO by 1000:1 or so, down to the point one couldn't even commit suicide from CO as long as there aren't exhaust leaks. On pre-Cat boats, sure, they run open loop on the rich side of stoic, so there is real danger.

[Shockthis]

Yes it was done with cats on. Would you be comforble leaving your car with cats running in your garage? Cars with cats still produce CO

[ericinmich]

Yes it was done with cats on. Would you be comforble leaving your car with cats running in your garage? Cars with cats still produce CO

Actually I have done it a bunch. Had them idle for hours or more... You can't commit suicide with a new car from CO. It is possible to delete all the O2 if you run long enough though.

My job for a few decades was emissions controls on cars if that matters. Ran full CERT tests, etc.

I'd love to see the data, what boats were putting out large amounts of CO. It's likely that the government would want to know if someone isn't playing by the rules.

[talltigeguy]

I'd be curious if the research was done on boats with Cat's. On cars, the Cats reduce the CO by 1000:1 or so, down to the point one couldn't even commit suicide from CO as long as there aren't exhaust leaks. On pre-Cat boats, sure, they run open loop on the rich side of stoic, so there is real danger.

Generally speaking, the hydrocarbons in gasoline are burned to CO2. If you put your car in an enclosed area, then the car produces more and more CO since there isn't enough O2 to go around. That can overwhelm the ability of the exhaust system to remove it, even with the cat.

[Shockthis]

You bet I can send it to you, give me your email. It was done on a 2013 nautique 210 with a 343 pcm.

A car with cats will still produce close to 1000 ppm of CO. If you have a exhaust leak it can be higher. The time weighted average needs to be less than 35 ppm plus there is a maximum exposure limit. So if you are doing it for 3-4 hours a day it all adds up. If you are excercising your are carrying it faster into your blood stream because you are breathing harder. I still prefer getting 1-2 ppm compared 25-100ppm . Again a higher risk to unborn babies. For $500 and I can hear my stereo better and puts my mind at ease.

[chpthril]

A car with cats will still produce close to 1000 ppm of CO.

Is this measured at a distance like as done with the boat tests or up the tail pipe where is concentrated? I would expect a tail pipe sniff to be higher PPM as compared to how we would measure as if we are a surfer in tow. Makes it hard to compare boat and car emissions. Another factor is that I dont think boat CATs get near as hot as a car CAT, this the boat cat is less efficient converting C0 and HC into C02.

Also, the more we load these engines down, the more emissions we will have.

As a state emission inspector back in the day, i have seen some cars with cleaner exhaust then what it sucked in ive seen plenty of double zero sniff test.