What's new
Van's Air Force

Don't miss anything! Register now for full access to the definitive RV support community.

Better an 4 pipe exhaust.

Sanch627

Member
Vetterman 4 straight pipe exhaust.

Those who have used a Vetterman 4 pipe straight exhaust on the 4 , what cowling changes had to be made, I’m using a Lycoming O360 A1A..
 
Last edited:
None, if it hasn't been modified already

I must assume you are a "new build" rather than replacing an existing system. i have seen plenty of cowlings that had unique exhaust exit modifications added to them, and some very early RV-4 cowlings that had 2 formed tunnels for the outlet/tip clearance. The 4 pipe system fits a very narrow opening if installed correctly.
 

Attachments

  • LWR outlet.jpg
    LWR outlet.jpg
    125.1 KB · Views: 175
RV 4 with Vetterman 4 pipe

My 4 has standard Vans cowl and O-360 A1A and Vetterman 4 pipe. No mods necessary just install.
 
Back
Top