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Yes there are crap wastegates.There is speed of reaction, longevity to consider and of course getting the right size for your needs. Also correct mounting (most direct route for gases should be through w/g so off the turbo housing often best) . I bought a 50mm Synapse w/g which is one of the most expensive but there must be cheaper ones which will do the job.

and when it comes to size theres lots of factors including turbo size, manifold design and target boost. Kyle from 6 boost usually recommends bigger gates for his manifolds due to their design. think he usually recommends a 60mm

I'm not an expert on this, but yes there are a number of outcomes.

1. There are crap quality wastegates.

2. There are too small wastegates

3. There are too big wastegates.

4. There are poorly mounted wastegates.

5. There are wastegates with the wrong spring installed.

Hope that helps.

Hmmm. Thanks for the replies guys. I have ended up purchasing from ebay a jdm 50mm wastegate with an interchangeable 6 & 14 actuator. I'm hoping it does a good job but worst case senario I got a "v band" one so it's easily interchangeable. Cheers for the help though, if it doesnt work I'll change to the teil option ;)

Hey guyz i had the same question about what size wastegate do i need, ill be using a GTX3076 on a stock RB25 Neo running around 18-20 psi to make 300-320 Kw's... What size wastegate do i need and where can i get one from, ebay one's can be a bit tricky with the fakes..

Hmmm. Thanks for the replies guys. I have ended up purchasing from ebay a jdm 50mm wastegate with an interchangeable 6 & 14 actuator. I'm hoping it does a good job but worst case senario I got a "v band" one so it's easily interchangeable. Cheers for the help though, if it doesnt work I'll change to the teil option ;)

"jdm 50mm wastegate" from ebay . sounds chinese and "jdm" is the brand name ?? got a link to it ? it will prolly end in tears

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