.32 GMS Velocity Stack
 

Been wanting to add some kinda extension to keep the stand-off fuel from escaping... so I spent some time at the local true value looking for that random part that would fit the bill. A 3/8" pipe coupler fit perfect after some minor boring out with a Dremel. Used a short 3/8" screw and a vice to press into the tube to create a flared opening. Worked great today - kept the fuel off my plane and ran smoothly after some work to the high speed needle.

http://somegeek.home.comcast.net/som...fighter_16.jpg

http://somegeek.home.comcast.net/som...fighter_17.jpg

Got about 1/8" clearance from the prop which is penty since the blades will only bend forward when throttling up.

somegeek

RE: .32 GMS Velocity Stack
 

WOW super job hope it stays that bright looking nice flare on it martin
like your throttle rod hookup too no slop there

RE: .32 GMS Velocity Stack
 

G'day Geek,
If I were you I would change that metal clevis, & replace it with a plastic one, or a ball link, you should avoid metal to metal contact like that, It can produce RF noise & effect your radio reception.
Also, that's an APC prop, the blades won't flex much, if at all.

RE: .32 GMS Velocity Stack
 

Alan have done both on throttles and no issues, maybe lucky with the new 2,4 Gz radios should not be a problem if using one very good point however martin

RE: .32 GMS Velocity Stack
 

When you watch the blade from the side, running from an idle to WOT causes the tips to move forward about 1/8".

Good thing to note on the clevis... forgot about that.

somegeek

RE: .32 GMS Velocity Stack
 

You do nice work, Somegeek.

What is holding the extension in place? Not just friction, I hope...


Ed Cregger

RE: .32 GMS Velocity Stack
 

Thanks, Ed!

Friction(tight fit) and a silicon adhesive. I've checked it before and after a half dozen tanks with mostly WOT runs and it's not wandered from it's initial installation location... would be nice to have a screw into the carb intake wall though.

somegeek