Internal and External wastegate Manual Boost Controls. Difference?

[88323GT]

Hey, just curious if anyone knows this as in, what is the difference? I currently run an HKS for Internal Wastegate, and just picked up a Turbonetics which I just found out is set for external. What will change between these? Diaphragms any different between the two? Just been an on going question, cant find an answer.


Thanks

 

[88323GT]

So maybe this isnt as noobish as I thought? Anybody?

 

[Alamo1]

Your question doesn't make any sense at all. Give us more info.

 

[88323GT]

How does that question make no sense? Companies sell Boost controllers specifically for internal wastegates, and boost controllers for external wastegates. What is the difference in design and flow? Ive recently tried a turbonetics boost controller for external applications and it didnt change my boost at all at any level. Hense why I ask.

 

[Scaytale]

I don't know if you still need it but, internal wastegates are internal to the turbo, meaning the valve is part of the turbo.

external wastegates, are not part of the turbo, but are external and require extra piping, to vent exhaust around the hot side of the turbo.

 

[cougar10agREDUX]

with an external WG it's got an extra vac port on the opposite side of the diaphragm so the EBC solenoid can give that port boost to help keep the WG closed until you reach the desired PSI to improve response of the turbo and better control of the WG. on an internal WG there is only one port, so it can cause the WG to crack open. on both the solenoid will not allow the boost signal to reach the signal port on the WG until the desired pressure (depending on type of EBC and it's options). some EBC solenoids will have two ports, some will have 3 ports. both will work with internal or external WG. to get the most out of an external WG the solenoid will need 3 ports.

 

[Speed3.5]

Well, even though they are boost controller each one of them is hooked up somewhat different.
Just look up on the brand name boost controller site and get their instruction on how to hook it up for each case.

 

[Lants]

How does that question make no sense? Companies sell Boost controllers specifically for internal wastegates, and boost controllers for external wastegates. What is the difference in design and flow? Ive recently tried a turbonetics boost controller for external applications and it didnt change my boost at all at any level. Hense why I ask.

you make total sense. and I am looking to install the GReddy Profec B-spec II into my MzSPD3 and Im looking for help on it. I posted a thread, did you ever get one? If you did put one in I can use all the advice I can get, I dont want to hurt my beloved engine (blowup)