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  #1  
Old 04-21-2018, 09:54 PM
sjhurlbut sjhurlbut is offline
 
Join Date: Jan 2005
Posts: 566
Default RV8 4 pipe exhaust - who uses?

My engine is IO-360-A1B6 angle valve with 10:1 pistons. The recommended exhaust is 4 straight pipes. No crossover and no 4 into 1. Idea is better cabin heat and less crowding around throttle/mixture cables plus power.

Any other RV8 out there with 4 pipes? Hows the room at the cooling ramp exit?

Other issues?
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  #2  
Old 04-22-2018, 04:48 AM
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Mark Dickens Mark Dickens is offline
 
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Location: Collierville, TN (KFYE)
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Steve, I have one on my parallel valve IOX-370. Plenty of room around the cowl exit. I also have my breather and sniffle valve plumbed to exit in the same area and there's plenty of room.
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  #3  
Old 04-22-2018, 06:15 AM
ctennis ctennis is offline
 
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Location: Columbus, IN
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I have a 180hp IO-360-M1B with 4 straight pipes. There's plenty of room around the cowl exit.
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  #4  
Old 04-22-2018, 07:03 AM
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Champ Champ is offline
 
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Location: Kingsville, Ontario, Canada
Posts: 206
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I used Vetterman's 4 pipe on my IO375. Here is a during construction photo of the exit. Its hard to tell in the picture but there is plenty of clearance to the cooling ramp and lots to the cowl as the picture clearly shows. You can see the crankcase vent above the exhaust pipes. Sounds good, is simple, and there is plenty of area for cooling air flow. FYI I also hung the pipes off the engine rather than the engine mount.

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  #5  
Old 04-22-2018, 07:04 AM
John RV8 John RV8 is offline
 
Join Date: Feb 2005
Location: Watauga, TX
Posts: 116
Default 4 Pipes

I have IO-360, parallel valve with the 4 pipe system. Plenty of room for things in the cowling. Plus folks tell me the plane Sounds better 😜 than the other RVís on the field with other styles of exhaust.
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  #6  
Old 04-22-2018, 08:46 AM
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Bob Martin Bob Martin is offline
 
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Location: Richmond, Virginia
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Default 4 pipes

Question for the 4 pipe guys....no thread drift.........
Does each pipe have a slip joint or ball joint?
and so are there 4 hangers too?
4 pipes coming out the back seems very cool...
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  #7  
Old 04-22-2018, 09:09 AM
MeAndMyToys MeAndMyToys is online now
 
Join Date: Jan 2011
Location: Hillsboro,OR
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Quote:
Originally Posted by Bob Martin View Post
Question for the 4 pipe guys....no thread drift.........
Does each pipe have a slip joint or ball joint?
and so are there 4 hangers too?
4 pipes coming out the back seems very cool...
On mine each pipe has a slip joint and a ball joint.
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  #8  
Old 04-22-2018, 09:57 AM
greghughespdx greghughespdx is offline
 
Join Date: Nov 2011
Location: Hillsboro, OR
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Quote:
Originally Posted by sjhurlbut View Post
Idea is better cabin heat and less crowding around throttle/mixture cables plus power.
For better cabin heat, might want to call or email Clint at Vetterman and discuss the relative benefits of a trombone exhaust and any power differences.
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  #9  
Old 04-22-2018, 12:34 PM
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Two pipes get combined on one hanger by way of flat bar clamps (provided by Vetterman) - so two hangers.
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  #10  
Old 04-22-2018, 07:33 PM
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goatflieg goatflieg is offline
 
Join Date: Jul 2013
Location: Clarkston, MI
Posts: 369
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I do have the Vetterman 4-pipe exhaust for my Superior IO-360-X... but haven't installed it yet. So I suppose I shouldn't comment. Yet, here I am... commenting. Sorry about that.
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