I will modity full non squential in korea .a question.I can not find a JB Welb to plug some holes like after take off both butterfly plates from y-pipe and double throttle plates, shaft.or remove the flapper in the manifold's hole .I can find a Welb the max degree is 260'c .so is it enought for our rotary engine?

 

Don't use JB weld it will not hold. Use block off plates:

http://www.banzai-racing.com/products_fd_bop_kit.htm

For the exhaust manifold and turbo flapper, you can either tap and plug or have them welded, but again do not use any 2 part epoxies.

 

I weld up the holes and weld the ports closed when I do the Rich mans non seq mod .JB Weld will not work , search for Garfinkles rich mans non seq modification .

 

Or you could just leave the butterfly valve and not have to worry about JB weld or block off plates. The valve remains open anyway so it's not going to be a problem. If you want to get really technical then it may upset the airflow any restrict the airflow a little bit. But unless you are a human dyno, I doubt you will notice any difference.

 

do it right the first time - weld it.