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  #1  
Old 04-26-2016, 09:18 AM
TimO TimO is offline
 
Join Date: Feb 2005
Location: Wisconsin
Posts: 341
Default RV-14A Vetterman Exhaust

I'm getting a bit behind with my online time these days. When pushing thru to the end of the build, I try to stay focused and get too sidetracked. But for a while now I've had the RV14A version of the Vetterman exhaust installed, and recently I finished the cabin heat system, so it's time to post some pictures!

I should warn you, there are many many things in the photos that aren't complete. You'll see many loose nuts, and no hoses have been tightend yet. At the time of the photos the engine monitor was in process of being installed, but today that is all complete. So look at the photos for what they are...just pictures of the exhaust system. I'll post more complete pictures on my website in a few days, as I'm just about wrapped up with everything FWF, and am about to close off the cover forward of the panel and prep the plane for paint.

For those of you wondering "Why" regarding a different exhaust system for the -14, it's simple...the stock system is a 4-into-1 system and with a big IO-390, it will probably suffer some restriction due to not enough exhaust flow. The Vetterman system is a nice dual 2-into-1 system with 2 tail pipes, that is tuned and should give the engine better breathing. It also includes turned down pipes, to help keep the belly from being heated up. While I haven't flown with it yet, I expect the exhaust should do really well. I'm more concerned that the cowl exit area may be too tight and we may have to open that up a bit. Time will tell on that.

The exhaust system does provide dual heat muffs in hopes of keeping a nice warm cabin. While they aren't in place in these photos, I did use the same heat shields as Van's uses, in the area of the fuel flow sender and fuel lines. additionally there will be a heat shield on the pipe below the throttle cable.
My heat shielding will be shown in some photos regarding the throttle quadrant that I should have available by late this week.

The exhaust hangs off the back of the sump, and the tail pipes go up and over the nosewheel hinge point, and into the tunnel. If later it is found the cowl would need more exit area, it would not be too hard to route the pipes under the nose wheel hinge point, and keep that tunnel completely open.
The overall design kind of looks like modern art, to me.

Now on to the pictures. I'll break them down into multiple posts.











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Tim Olson - CFI
RV-10 N104CD - Flying 2/2006 - 1300+ hours http://www.MyRV10.com
RV-14 N14YT - Flying 6/2016 - 170+ hours http://www.MyRV14.com
RV-10/14 Transition Training: http://www.RVCFI.com
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  #2  
Old 04-26-2016, 09:19 AM
TimO TimO is offline
 
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Location: Wisconsin
Posts: 341
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Tim Olson - CFI
RV-10 N104CD - Flying 2/2006 - 1300+ hours http://www.MyRV10.com
RV-14 N14YT - Flying 6/2016 - 170+ hours http://www.MyRV14.com
RV-10/14 Transition Training: http://www.RVCFI.com
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  #3  
Old 04-26-2016, 09:20 AM
TimO TimO is offline
 
Join Date: Feb 2005
Location: Wisconsin
Posts: 341
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Tim Olson - CFI
RV-10 N104CD - Flying 2/2006 - 1300+ hours http://www.MyRV10.com
RV-14 N14YT - Flying 6/2016 - 170+ hours http://www.MyRV14.com
RV-10/14 Transition Training: http://www.RVCFI.com
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  #4  
Old 04-26-2016, 09:21 AM
TimO TimO is offline
 
Join Date: Feb 2005
Location: Wisconsin
Posts: 341
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Tim Olson - CFI
RV-10 N104CD - Flying 2/2006 - 1300+ hours http://www.MyRV10.com
RV-14 N14YT - Flying 6/2016 - 170+ hours http://www.MyRV14.com
RV-10/14 Transition Training: http://www.RVCFI.com
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  #5  
Old 04-26-2016, 11:05 AM
rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 7,053
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Be sure and let us know how badly the dual pipes bang the sides of the tunnel during startup and shutdown........

Other than that, the rest of the exhaust and cabin heat installation looks pretty much what is standard in the kit (except for maybe the aim of the hose ports on the Van's heat muffs are better for where each hose needs to go).
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RV-6A (aka "Junkyard Special ")
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  #6  
Old 04-26-2016, 01:31 PM
TimO TimO is offline
 
Join Date: Feb 2005
Location: Wisconsin
Posts: 341
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Clint at Vetterman's did change the angle of the heat muff inlet/outlets slightly after he did mine, so other people should have a more direct routing of the SCAT tubes. If I find a reason to some day, he'll swap them with me.

I'll be curious to see how the exhaust does with the tunnel walls too. There is a good amount of clearance there, actually, but, it's been a while since I've dealt with the 4-bangers. The IO-540 does a shutdown shake too, but I'm not sure if it will be harsh enough that it'll actually touch, on the -14.

The short of it is, I personally dislike the whole "Tunnel" idea on the -14 anyway. I think the cowl should have come down lower and the exhaust should come out the bottom just as it does on the -10. The tunnel itself is an eyesore from the bottom, and being made out of stainless, I don't think I'll paint it because the paint won't stick as well, and even if it did, it's going to have a hot exhaust pipe stuffed into it that would probably discolor the paint anyway unless there's plenty of airflow to prevent it. I guess we'll see after time.
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Tim Olson - CFI
RV-10 N104CD - Flying 2/2006 - 1300+ hours http://www.MyRV10.com
RV-14 N14YT - Flying 6/2016 - 170+ hours http://www.MyRV14.com
RV-10/14 Transition Training: http://www.RVCFI.com
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  #7  
Old 05-08-2016, 04:12 PM
NorrisAir NorrisAir is offline
 
Join Date: Mar 2014
Location: Veradale, WA
Posts: 18
Default Exhaust diameter

Tom,
I like the looks of your exhaust system. One question, what is the diameter of your exhaust pipes. I am putting in a Superior XP400 so Van's system won't fit so I planning on a Vetterman.
Norris
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  #8  
Old 06-01-2016, 09:06 PM
KeithB KeithB is offline
 
Join Date: Mar 2014
Location: Granbury, TX
Posts: 109
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I have also decided on a Superior XP400, now being built by Aero Sport Power. I called Vans regarding the Vans exhaust (i.e. will it fit?) and they have no knowledge/information, suggesting I contact Superior. Before getting Vans to delete the exhaust from my FWF kit, I'd like to confirm that it will not fit. Can anyone confirm this is the case?

Also, I see the Vetterman Exhaust installation post by TimO, but that appears to be on a 390, so I assume it was done for other reasons.
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RV-14A Builder - kit #136
N314KC - First flight Mar 8, 2017, Phase I compl Apr 3, 2017, >150 hrs
RV-6A sold
Sport Pilot (weight-shift control) - Airborne XT912
Dues paid 11/2017
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