20G turbo upgrade by dougy

3 minute(s) of a 61 minute read

4-1-2015

i can tell you this external Wastegate works flawlessly...glad i put it in a location where I am able to access WG spring and set it to my desired PSI ...my target boost is 22 psi so running just of the waste gate with my TCV unplugged - first I had a .7 bar rate springs which at WOT gave me 13 psi of boost no matter what  , then I swapped to .6 bar spring rate which gave me at WOT 10.5 psi of boost no matter what  ...little off spring rate wise buuuut = BUT NO MORE FOUCKIN 20G BOOST CREEPER.

FYI: I must tell you that testing this/my Genuine Tial it does leak at the valve stem just as I found out searching online, which they say it is normal...also I can tell you it does function properly...so I am not sure how relevant this tiny leak is...but if I knew that prior I would buy 40mm Synapse WG for sure. 

here I am replacing .6 bar spring. 

here is a great video showing how it leaks at the valve stem.

i can tell you this external Wastegate works flawlessly...glad i put it in a location where I am able to access WG spring and set it to my desired PSI ...my target boost is 22 psi so running just of the waste gate with my TCV unplugged - first I had a .7 bar rate springs which at WOT gave me 13 psi of boost no matter what  , then I swapped to .6 bar spring rate which gave me at WOT 10.5 psi of boost no matter what  ...little off spring rate wise buuuut = BUT NO MORE FOUCKIN 20G BOOST CREEPER.

FYI: I must tell you that testing this/my Genuine Tial it does leak at the valve stem just as I found out searching online, which they say it is normal...also I can tell you it does function properly...so I am not sure how relevant this tiny leak is...but if I knew that prior I would buy 40mm Synapse WG for sure. 

here I am replacing .6 bar spring. 

here is a great video showing how it leaks at the valve stem.