hey guys, Im looking to get a new wastegate. What determins what size wastegate you need.??? Im makeing around 300WHP.. Would a 40mm be enough?? Do i need a 50mm?? whats are the cons of haveing to big of a wastgate.????

Thanks for any help...

 

How much boost are you running?

 

Depends on the turbo and the boost you want to run. The wastegate is what keeps your turbo from spooling to infinity so you have to know how much flow you need to get rid of to control boost. Having an oversized wastegate isn't a big deal, having too small of a wastegate is a problem since it will be causing boost spiking and boost creep.

thewird