ORIGINAL: yf222000
The rear of the pipe is located 1.25 inch insideOf the fiberglass exhaust cones. Yes the rear former is solid. It is a full enclosed Bypass.
<div style="margin: 0cm 0cm 10pt"><span style="font-size: 9pt; line-height: 115%">This is your problem. If I was setting this up I would drill 10mm or biger holes all the way around the former that surrounds both pipesandstrengthen with carbon/epoxy if necessary. Then make sure the bifurcated pipe ends about 3/4 inch before the fibreglass nozzles do and line the nozzles with some stainless sheet/ ally sheet or even heat shield might be enough. Doing this will draw cooling air through the fuse and things will stay cooler. Currently you seem to have made a very effective oven and I don’t think any amount of foil, heat shield or ceramic blanket is going to keep it coolat idle.</span></div><div style="margin: 0cm 0cm 10pt"></div><div style="margin: 0cm 0cm 10pt"><span style="font-size: 9pt; line-height: 115%">Good luck</span></div><div style="margin: 0cm 0cm 10pt"><span style="font-size: 9pt; line-height: 115%">Jason</span></div>