Installing a JGS 50mm wastegate and can't decide what size pipe to use. 1.5" is a tiny bit smaller than the flanges, and 2" stuff is huge.
Do you think a 50mm valve can outflow a 1.5" sch 10 pipe? The wastegate will have pretty decent placement on the collector of this manifold, using about a 2" peice of straight pipe.
http://www.eville140.com/Camer...).jpg


Thanks

 

i would just use the 1.5". i don't think you will see a difference stepping up a size, plus 1.5" is very easy to get.

 

yea, I ordered in a foot of 2" from Mcmaster Thursday so I would have it before the weekend. $2 and inch before shipping..ouch

 

Wanna buy a pet rock? $100

 

the 2" sch 40 is almost 2" (~50mm) exactly inside diameter