GPoodle

I have a deltagate wastegate, and I took it all apart and cleaned it out last night but Ive read that a lot of people have problems with boost spikes when useing it. I was wondering, if the turbo is internally wastegated, if I make my manifold to support an external wastegate like the Deltagate, could I use both? I thinking is that if the external WG spikes, the internal one on the turbo should vent that spike assuming both are set to the same PSI.

Is this logical or have other people done this?
Thanks.

Krayzie2k1

with turbo, to my knowledge, you can have one or the other. you cant use both because the internal wastegate is set by an actuator arm on the compressor side. with external, it bleeds off the excess pressure after you reach a set psi amount.

GPoodle

Ah thanks for clarifing that

turbocivic17m

one or the other. If you tried to use both i'm sure you would have some crazy problems, I wont get into that though. If you want accuracy, use the external. Simplicity, use the internal.

shortyz

if you calibrated them to open at 10psi why not?

turbocivic17m

Sure you could calibrate them together, but what happens when the internal gate spikes while the external gate is open? Two different readings.... what is the point

45psi

i see a point to two wastegates. go up to a ricer, and say, "your turboed car isnt fast unless you got dual wastegates" i know its not entirely ethical, but its sometimes fun to ------ misinformation to the ignorant.