tubing material between header and tuned pipe

[Jared Hays]

What and where do I find the light weight hose are you guys are using to connect the exhaust header to the tuned pipe.  The section on my OS 40 VF split all the way length wise down the hose.

[Dennis Nunes]

Hi Jared,
A couple of years ago I was able to purchase a length of some 3/4" ID High Temp Silicone Tubing from Radical RC. They have various diameters and it appears they still carry this, see https://www.radicalrc.com/category/Exhaust-Couplers-542 for further information.

Dennis

[Perry Rose]

The tube used to build folding outside chairs with plastic webbing is perfect for it.

[Dave_Trible]

Jared I go to O'Reilly auto parts and buy a double wall silicone high performance heater hose they sell.  It's a little bigger around but stands up well to the heat and pressure of my .76s.  It's pricey but worth it I'd say.  The piece I bought last year was about $15 a foot.  You'll need to replace it after maybe 200 runs.  At some point it can start to leak between layers but it still outlives anything else I've tried.

Dave

[Donald Main]

I have been using this and its $42 for 5'
https://www.amazon.com/FlexFab-Silicone-Radiator-Coolant-5526-062/dp/B07ZPQ7WJD/ref=sr_1_4?dchild=1&keywords=flexfab+5526-062&qid=1628086550&sr=8-4

[Jim Svitko]

If you can't find it from local retail outlets McMaster-Carr has it.

[Dave_Trible]

I have been using this and its $42 for 5'
https://www.amazon.com/FlexFab-Silicone-Radiator-Coolant-5526-062/dp/B07ZPQ7WJD/ref=sr_1_4?dchild=1&keywords=flexfab+5526-062&qid=1628086550&sr=8-4

That looks like what I use.  You got a better price!

Dave

[Steve Helmick]

Aero Products is where I've gotten some. I'd imagine RO-Jett also has it, but I haven't gotten any from Dubby. I also haven't had to replace any in about 10-11 years of running mostly piped engines. I must be doing something wrong?    Steve 

[Dave_Trible]

Aero Products is where I've gotten some. I'd imagine RO-Jett also has it, but I haven't gotten any from Dubby. I also haven't had to replace any in about 10-11 years of running mostly piped engines. I must be doing something wrong?    Steve

Directly proportional to fuel expended...

Dave

[Brett Buck]

Aero Products is where I've gotten some. I'd imagine RO-Jett also has it, but I haven't gotten any from Dubby. I also haven't had to replace any in about 10-11 years of running mostly piped engines. I must be doing something wrong?    Steve

   I had my first-ever-in-32-years failure of the coupler at the NATs this year. Just blew it right in half. The tubing was about 32 years old, too.

      Brett

[Jared Hays]

Thanks guys!