Tuned Pipe Coupler Material
 

What type tubing is used as coupler between header/pipe on gas engines?
Won't the blue silicone stuff for glow melt in a gas application?
What is a good source for the right material? I need 7/8" ID.

RE: Tuned Pipe Couper Material
 

MACS only sells up to 3/4". I think it's all blue? The 3/4" was supposed to be good for 62cc.

Enjoy,

Jim

RE: Tuned Pipe Couper Material
 

McMaster Carr -- http://www.mcmaster.com/ -- has silicone and teflon tubing rated to 500˚, wide range of sizes, reasonable prices, excellent service.

RE: Tuned Pipe Couper Material
 

Heres the stuff I use >
http://www.aerotrend.com/shop_subcat...2a4275598e2673

And I use this for glow engines >
http://www.aerotrend.com/shop_subcat...2a4275598e2673

RE: Tuned Pipe Coupler Material
 

I have been successfully using a High Temp Exhaust Coupling sold by Octura Model Marine Supplies for connecting tuned pipes to headers on 2-strokes. It doesn't last forever, but it outlasts anything else I've tried. It appears to be a sort of red rubber silicone that has about 4 layers of fiberglass woven reinforcement imbedded in it. They sell it in 3 inch lengths, and local hobby shops who sell stuff for model boats usually will carry it or can get it. It is available in inside diameter (inches) sizes 1/2; 5/8; 3/4; 7/8; and 1 inch. Their part numbers are OC16HTEC, OC20HTEC, OC24HTEC,OC28HTEC, OC32HTEC.

I think the part numbers are the I. D. in thirty-seconds of an inch and HTEC stands for High Temperature Exhaust Coupling.

You acan find it listed on http://www.pirespreto.com/octura_catalog.htm.

I couldn't find a web page for Octura
but - their address is
Octura Models, Inc.
7351 N. Hamlin Ave.
Skokie, Ill 60076

TJ

RE: Tuned Pipe Coupler Material
 

Contact Desert Aircraft or Aircraft International and ask them for some Teflon couplers. Both places have them in 22mm (7/8") and 25mm (1") diameters.

Kris Welter

RE: Tuned Pipe Coupler Material
 

Hey.... how are you doing Kris? It's been awhile.