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-   -   MB exhaust tips? (http://www.wakeworld.com/forum/showthread.php?t=779684)

duffymahoney 05-19-2010 11:37 AM

MB exhaust tips?
 
1 Attachment(s)
How well do MB's turned down exhaust tips work at surf and wakeboard speeds? Anyone ride behind one?

alans 05-19-2010 11:47 AM

I have surfed behind them a bunch. I have never felt the need for FAE on an MB and believe the turndown tips work. However, those that have FAE, swear by it. I think the only way to answer that question is to have a formal experiment conducted.

duffymahoney 05-19-2010 11:59 AM

So you can't see or smell anything? Do you see bubbles coming up at wakeboard speeds? Hows the exhaust sound level?


I had an FAE on my boat, I pulled it off and i am fabricating my own turn down tips.

alans 05-19-2010 12:01 PM

At wakeboard speeds the tips are out of the water, so no bubbles. MB's exhaust sound really nice, then again its a PCM and it has a muffler. Almost silent in the boat.

cjh1669 05-19-2010 12:02 PM

My malibu has the down turned tips also and I can still see exhaust. Probably better than not having them, but not as good as FAE

duffymahoney 05-19-2010 12:24 PM

4 Attachment(s)
I installed the Malibu tips and they are a no go on my boat. They are out of the water at both wakesurf and wakeboard speeds on my Ski Centurion Avalanche.

My new tips are going to be 4" just like the malibu silent rider tips. I plan on doing 2- 45 degree angles and going "1/2 below the bottom of the transom. I plan on having a slight tip angle (like the fae) so water isn't forced up at speed. Also having the tip below the transom to be squished to 2"x5" so it's not as big of a drag.

alans 05-19-2010 12:34 PM

The MB tips have a full 90 degree turn down

duffymahoney 05-19-2010 12:42 PM

I am planning 2- 45 degree turns so a total of 90. I have access to lots of 4" pipe but no way to bend it.

ixfe 05-19-2010 2:36 PM

I surf behind the MB all the time. I have never seen or smelled any exhaust.

And my MB is the quietest boat I've ridden in.

wakereviews 05-19-2010 2:53 PM

IXFE, does your boat have the CAT motor in it or the standard? The one in the pic is the non-CAT motor. I've had both and I never noticed any fumes surfing on either of them. I never felt FAE was necessary for the MB's with turn down exhaust.

duffymahoney 05-19-2010 2:57 PM

I have a cat motor on my avalanche. Ultra low is what the motor says

duffymahoney 05-19-2010 4:51 PM

I'm just affraid if the tips are not deep enough that the exhaust will just come back up when surfing. I am also affraid it will put wash in my very clean wave.

motorcitymatt 05-19-2010 6:29 PM

I have never even gotten a wiff of fumes on my 2008 non FAE engine.

You're going to LOVE the surf wake, either side rocks! With just stock ballast.

I surf a lot with just my wife driving and my six year old son manning the rope. Stock ballast like I said, rocks with just the two of them aboard. Add some more crew aboard and you'll be spoiled!

Enjoy your bad ass MB :)

ixfe 05-19-2010 8:24 PM

Quote:

Originally Posted by wakereviews (Post 1587263)
IXFE, does your boat have the CAT motor in it or the standard? The one in the pic is the non-CAT motor. I've had both and I never noticed any fumes surfing on either of them. I never felt FAE was necessary for the MB's with turn down exhaust.

I have the standard motor with the dual exhaust...

I have never spelled any fumes on this boat. To be honest, never even thought about it until reading this post. I just assumed all boats were this way.

http://i124.photobucket.com/albums/p...E/DSCN0031.jpg

rallyart 05-20-2010 1:14 PM

The turned down tips do not reduce the CO level. The FAE does. The FAE is also quieter.
They're your brain cells so you can do as you wish with them. I like to know my kids are getting all the safety I can give them, and still have fun.

duffymahoney 05-20-2010 1:38 PM

Well I am planning on having mine deeper in the water. I had to remove my FAE because it caused wash in my wave.

texastbird 05-20-2010 2:00 PM

FAE reduces the CO level in the exhaust? Huh.

mdaijogo 05-20-2010 2:44 PM

Quote:

Originally Posted by rallyart (Post 1587622)
The turned down tips do not reduce the CO level. The FAE does. The FAE is also quieter.
They're your brain cells so you can do as you wish with them. I like to know my kids are getting all the safety I can give them, and still have fun.

The FAE redirects exhaust into the water. The FAE itself does not reduce CO levels, it redirects it.

Mario-

rallyart 05-21-2010 7:57 AM

The FAE reduces the CO level behind the boat, and in the boat while the boat is moving. There are measurable reductions in CO levels everywhere when the boat is moving. I hope that clarifies my short post above for you Dan.

duffymahoney 05-21-2010 12:52 PM

So nobody on here knows how far underwater I should go with the tips?

duffymahoney 05-24-2010 8:58 AM

1 Attachment(s)
Here are those tips on a malibu.


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