VQracer

Sorry if this is an ignorant question.

Can Tial wastegate be used with BNR upgraded turbos?

If so what size should be used?

Thanks,
Victor

rynberg

BNR turbos still use the stock housings/manifold. Therefore, they still use the stock internal wastegate, which is ported out to flow more exhaust air.

MazdaRx7Racer4Life

In other words, you COULD use it, but it'd be useLESS right ryn?

kyle@insight

I've heard of some people still experiencing creap with the ported wastegates from BNR. Rich is one that comes to mind. I'm starting to think that the wastegates, ported or not, are just completely inadequate. Wouldn't be a bad idea if someone could fab up some sort of way to mount external gates on the BNRs.

duboisr

You can inlarge the wg door in the stock exhaust houseing and make the port alot bigger . My mechanic made the bigger door from stainless steel along with the shaft . It controlles the larger BNR turbos at 17 lbs . the boost will be turned up after tuning .Then we will see if control is good at a higher boost level .