Extenal Wastegates Options

[elvasoshexai]

ok.. so the wastegate actuator on my ct20b is fubared.. i get boost creep like crazi...

i was going to get an external wastegate to replace it and weld the internal one shut.

i just hv a question about size.

i was planning on getting a tial 38mm w/ either .5(7.252psi) or .6(8.702psi) bar... i hv an mbc and plan to run probably 10psi neway tho...

however, the shop my car is at, a customer has a 48mm wastegate but wants a 38mm and he said that customer is asking if i want the 48mm turbosmart wastegate in exchange for a tial 38mm...

i'm assuming 38mm is a good size for a 5sfte...

would i b better off w/ the tial 38mm or the turbosmart 48mm?
the 48mm seems kinda big... i'd possibly get a lot of lag?
not sure what other pros/cons there would be between the 2?

any help? thnx

This post has been edited by elvasoshexai: Nov 28, 2007 - 12:59 PM

[OOBE]

Dude, a 48mm wastegate hole is huge. You'll probably get boost problems. You don't need it. It's overkill. There are Mirage 4G93 engines in the island pumping over 400 WHP on 35mm wastegates like mine. Why spend more money and risk getting in trouble, when you can go for the tried and tested route? Get a 38mm and be done.