No, porting won't stop surge, it might stop boost creep but thats about it.
Hmm. I'm not convinced..
whilst dialing in the boost, and having a wastegate which can flow well (ported like I did to wellys) then overall flow will be higher, but not all of it will be passing past the turbine.
I dont know this for fact, but believe the fact I ported wellys has made not only a difference to its creep (eliminated it) but also increased the overall flow potential, certainly whilst there is some wastegate action going on.
Big question for me is where it the choke occuring? hotside? turbine? smallport cyl head? cam duration affected?
Wellys is on the edge of surge on his 22-24psi spool... but his head is largeport.
my 2p
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