11-16-2007, 10:53 AM
Join Date: Jun 2005
Total Cats: 16
wastegate update - thanks WOT
Recently replaced the eBay 38mm external wastegate with a 38mm Tial purchased from WOT. Great price and fast shipping.
The knockoff eBay wg worked fine, just in the 10-15 times I had it open to swap springs I probably damaged the diaphragm. I looked at it after noticing an extra 3psi while getting wheelspin at 1/2 throttle in 3rd gear.
The problem is that I could not find a replacement diaphragm. The 'Power Seller' that I purchased it from didn't respond to emails, messages or phone calls.
So, the best reason to go with the Tial is that replacement parts are readily available. The quality of the Tial is very good.
The Tial and this particular eBay WG were dimensionally the same so everything bolted up in minutes. Function is the same.
eBay T3/T4, bov, ic, etc are all still doing fine.
Anyone want a really cheap external WG to play with?
Running the external WG on just the #4 runner, a 5.8psi spring gives me an actual 7psi at low rpm and creeps to around 10psi @ 7k. The old 3.63psi spring gave 5-6psi then crept to 10psi @ 7k. This is with a short open pipe on the WG.