some knockoff items work perfectly fine, and will last as long as you have them, some will not. its usually hit or miss.

my HKS SSQV is a fake i believe and i have NEVER had one problem with it in 2 years.

if there is a known knockoff that works, pick it up. if theres that small burr issue, just keep an eye on it and make sure it doesn't happen.

first things first with you though blizagaxx, get rid of that turbo and buy a new one. even possibly buy an internally gated turbo and it will save you money that way, and you wont have to route any more piping. for the setup you are going to do an internal gate will be more than enoughl

 

IGNORE THIS POST, INACCURATE INFORMATION DISCLAIMER

it depends on how much boost you plan on running. the purpose of a wastegate is to bleed off excess pressure that the turbo is making so that you arent running as many lbs of boost that your turbo is max capable of. if you have a big turbo and you only want to run small boost, than you will need a larger wastegate because they are more efficient in terms of relieving larger amounts of pressure. if you want to run high boost but yet keep it somewhat regulated, you wont be looking to expel large amounts of pressure; a smaller wastegate would suit this type of application.

IGNORE THIS POST, INACCURATE INFORMATION DISCLAIMER

 

No.

That is completely wrong. In every way.

A wastegate works by directing exhaust gas AWAY from the turbocharger's turbine wheel, before that exhaust gas goes through the turbine accelerating the wheel.

The wastegate is actuated by a pressure signal from the compressed air the compressor wheel produces. When the turbocharger produces boost pressure that exceeds the pressure that the spring is set for, the compressed air pushes the wastegate open, directing the exhaust away from the turbine, the wastegate remains open until the pressure of the air is less than the springs setting, which closes the wastegate.

What you are describing is closer to a fail safe pressure relief cap, which is installed on a charge pipe, similar to a radiator cap, when pressure exceeds a certain amount inside the charge pipe it pushes open the cap bleeding off air until the pressure is less than the amount the cap is designed for, this method is bad because your bleeding off boost your turbocharger already made.

A very large turbo can handle low boost with whatever wastegate you want, because if you divert exhaust away from the turbine, it cant spool. You need a large wastegate when you are experiancing boost creep, which is when your wastegate cant direct enough exhaust away from your turbine to stop boost at the desired amount. For example, your wastegate is set at 15 and your car will make 15psi then creep up to 17 then 19 then 20 etc. This is bad because you may over boost and thats not good.

Please dont give advise unless your absolutely sure you know your correct, your not helping anyone when you pass on false information.

Please, inform yourself here (http://en.wikipedia.org/wiki/Wastegate)

and most likely here too (http://auto.howstuffworks.com/turbo1.htm, & http://en.wikipedia.org/wiki/Turbocharger)

 

i apologize.. i was not aware of my false perception. thankyou for correcting