External wastegates, worth it or not

[Outlaw11bravo]

Im currently thinking about getting ewg for my stinger gt2 and wanted to know if its worth it? If so, which ones would be ideal? I hear tial is good, but theres a lot of fakes out there.

 

[General_Vodka]

Im currently thinking about getting ewg for my stinger gt2 and wanted to know if its worth it? If so, which ones would be ideal? I hear tial is good, but theres a lot of fakes out there.

Um you mean blow off valves, not waste gates. No one makes wastegates for our car as they are internal in the turbo lol. Big difference between the two. Anyways the blow off valves only improve sound mostly. Your better off spending money on actual performance mods but it's your money so feel free to do whatever you want with it. Stock bovs can handle even boosted power levels. Unless yours have debris in them.
If you really want to get that phssssss sound (and not much else) then I recommend sxth element. They bolt right in.

 

[Stiletto]

The only way to get true EWGs would be on a custom turbo build or the Lap3 turbo kit. The manifold design of the exhaust incorporates the turbo and the electronic wastegate.

 

[Outlaw11bravo]

Um you mean blow off valves, not waste gates. No one makes wastegates for our car as they are internal in the turbo lol. Big difference between the two. Anyways the blow off valves only improve sound mostly. Your better off spending money on actual performance mods but it's your money so feel free to do whatever you want with it. Stock bovs can handle even boosted power levels. Unless yours have debris in them.
If you really want to get that phssssss sound (and not much else) then I recommend sxth element. They bolt right in.

Thank you for the input. Saves me money and hassle

 

[Operation.stinger]

Um you mean blow off valves, not waste gates. No one makes wastegates for our car as they are internal in the turbo lol. Big difference between the two. Anyways the blow off valves only improve sound mostly. Your better off spending money on actual performance mods but it's your money so feel free to do whatever you want with it. Stock bovs can handle even boosted power levels. Unless yours have debris in them.
If you really want to get that phssssss sound (and not much else) then I recommend sxth element. They bolt right in.

Would disconnecting and capping off the hoses from the recirculating hose from the intake and BOV affect the engine in any way. I’ve been looking into it and a lot of people say it’s safe and all it does it just vents to the atmosphere instead of back into the turbo thus causing boost to build quicker again. Please correct me if I’m wrong on this.

 

[D.J.]

Would disconnecting and capping off the hoses from the recirculating hose from the intake and BOV affect the engine in any way. I’ve been looking into it and a lot of people say it’s safe and all it does it just vents to the atmosphere instead of back into the turbo thus causing boost to build quicker again. Please correct me if I’m wrong on this.

Safe to vent the recirculation valves to atmosphere - yes.

Thus causing boost to build quicker again - no

 

[Operation.stinger]

Sorry I had meant with the valves connected lol

Safe to vent the recirculation valves to atmosphere - yes.

Thus causing boost to build quicker again - no

 

[D.J.]

Sorry I had meant with the valves connected lol

What?
You mean, in the OEM configuration?
What is the question?

 

[Thomby]

Venting to the atmosphere will make noise, but it'll also throw away already boosted and metered air. It won't help you build boost any faster (putting the already-boosted air back in front of the turbo will), and may or may not cause you to run rich since you're throwing away metered air (not certain on that last part due to our MAP/TMAP sensor setup).

What you may want to consider is an adjustable blowoff/recirc valve that lets you adjust the split. You can start off fully recirculating, then gradually increase the venting just enough to get the sound you want, while wasting as little boost as possible. See this video from 10:18:

 

[D.J.]

The factory recirculation valve basically dumps the excess boost to atmosphere - but it's nearly silent, because it dumps it to atmosphere - through the air filter.

An external BOV is just louder.
There is no need at all for an adjustable blowoff/recirc diverter - unless you are really trying to fine tune your blow off sound.





Our MAPS sensor is located in the surge tank



Our intake air temperature sensor is integrated into the MAPS sensor

 

[Thomby]

The factory recirculation valve basically dumps the excess boost to atmosphere - but it's nearly silent, because it dumps it to atmosphere - through the air filter.

Does this come from the expectation that the throttle stays closed, so the turbo spools down, and the recirculated air flows backwards from the turbo up the intake?

Because in the typical acceleration/upshift scenario I'm imagining, the closing of the throttle under boost is momentary, so as the pressurized air is routed back in front of the turbo, the throttle should be open again, with the turbo pushing it into the engine.

 

[D.J.]

Because in the typical acceleration/upshift scenario I'm imagining, the closing of the throttle under boost is momentary, so as the pressurized air is routed back in front of the turbo, the throttle should be open again, with the turbo pushing it into the engine.

In an automatic car? Who lifts off the throttle between shifts?

In an autocross scenario, sure, there might be loads of throttle variation, and more need to dump excess boost many times. I haven't seen any data showing turbo lag being affected by a BOV vs RCV.

 

[Thomby]

In an automatic car? Who lifts off the throttle between shifts?

In an autocross scenario, sure, there might be loads of throttle variation, and more need to dump excess boost many times. I haven't seen any data showing turbo lag being affected by a BOV vs RCV.

The ECU cuts throttle between shifts, right? Or just spark?

 

[D.J.]

The ECU cuts throttle between shifts, right? Or just spark?

No, and no.
Constant acceleration between shifts.

 

[G-652354]

Um you mean blow off valves, not waste gates. No one makes wastegates for our car as they are internal in the turbo lol. Big difference between the two. Anyways the blow off valves only improve sound mostly. Your better off spending money on actual performance mods but it's your money so feel free to do whatever you want with it. Stock bovs can handle even boosted power levels. Unless yours have debris in them.
If you really want to get that phssssss sound (and not much else) then I recommend sxth element. They bolt right in.

Wrong these have Electronic Wast gate actuators