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TUNE+ Upgraded Wastegate Actuator (Surge Cure)

BoostBumps

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#63
I have a good amount of data, just let me know what you want to see and I will pull it together for you to ease your decision.
As mentioned earlier would like to see the effects / improvements made with the installation of new wastegate on the overall boost "profile" ...Specifically claims made as to how boost taper is improved by 1~3psi with this new wastegate installed (i.e. "Increases high rpm boost levels by 1-3psi")...

I think this would be very helpful for some of us that are currently on the fence...thanks!
 


Kip2MyLou

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#64
As mentioned earlier would like to see the effects / improvements made with the installation of new wastegate on the overall boost "profile" ...Specifically claims made as to how boost taper is reduced by 1~3psi out to 6500rpm with this new wastegate installed...I think this would be very helpful for some of us that are currently on the fence...thanks!
Agreed. Any logs showing that? After that I'm good to go adam.
 


OP
Tune+
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Thread Starter #67
As mentioned earlier would like to see the effects / improvements made with the installation of new wastegate on the overall boost "profile" ...Specifically claims made as to how boost taper is improved by 1~3psi with this new wastegate installed (i.e. "Increases high rpm boost levels by 1-3psi")...

I think this would be very helpful for some of us that are currently on the fence...thanks!
I have been holding off because the computer that has my licensed logging software doesn't have internet connection. I set my office up to be 100% wireless, and I didn't think about my PC requiring an ethernet cable. I ordered up a wireless card for it and also emailed the company that makes the software and asked for another license so I can put it on my mac's.

Here is what I have for you though, I can't lay them over with datazap but you can see what's going on here. I chose 5252rpm's for the reference point as that is where torque/hp cross and where peak normally happens on these cars. I got as close to 5252 as I could on datazap, you can never hit an exact point.

First one is with Tune+ Actuator (19.97psi), and the second one is with stock actuator (18.94psi).

Screen Shot 2015-11-12 at 12.12.51 PM.png Screen Shot 2015-11-12 at 12.12.17 PM.png

This is on a bone stock car, only actuator. These logs are also from the pulls made on the dynograph I posted previously, and on my website.

I
 


OP
Tune+
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Lewisville
Thread Starter #69
Here is at 6600 which is the end of the run.

Tune+ Actuator : 15.63psi
Stock Actuator : 14.44psi

Same log.

Screen Shot 2015-11-12 at 12.24.48 PM.png Screen Shot 2015-11-12 at 12.24.34 PM.png
 


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Sunnyvale
#74
Adam count me in. Figure I'll deal with my upgrade path later, but better smooth and strong than sorry.

Going to the website now.
 


JasonHaven

Active member
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Washington
#76
Ordered the wastegate and etune, but didn't get a discount, womp womp. :(

I don't know when I'll get it installed, or when I'll be able to do the tune, but at least I'll have it all when I'm ready haha. I'm getting some stuff installed on the 21st, I imagine I won't receive it by then?

Update: Adam sent me a $25 refund! Awesome!
 


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Location
Gloucester, VA
#77
Ok, I don't see how a WGA can "add" boost that is un-commanded by the ECU unless it is malfunctioning. The only way I can see the results depicted in graphs happening is the WGA is slower to respond to the ECU-commanded pressure.

Adam,
Please explain to a technical guy how the Tune+ WGA reacts physically differently than the OEM WGA. I can see where an improved design with a more "securely" controlled rod and resulting "smoother" movement could help the oscillations.
 


OP
Tune+
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Lewisville
Thread Starter #78
I'm in. Ordering tonight.
Didn't see an order come through last night, just giving you a reminder! They are going fast!!!


Ordered the wastegate and etune, but didn't get a discount, womp womp. :(

I don't know when I'll get it installed, or when I'll be able to do the tune, but at least I'll have it all when I'm ready haha. I'm getting some stuff installed on the 21st, I imagine I won't receive it by then?

Update: Adam sent me a $25 refund! Awesome!
I always do right by my customers. If you have a look at the description of the IWG it says to email me for the discount ;).

Ok, I don't see how a WGA can "add" boost that is un-commanded by the ECU unless it is malfunctioning. The only way I can see the results depicted in graphs happening is the WGA is slower to respond to the ECU-commanded pressure.

Adam,
Please explain to a technical guy how the Tune+ WGA reacts physically differently than the OEM WGA. I can see where an improved design with a more "securely" controlled rod and resulting "smoother" movement could help the oscillations.
I didn't say it adds boost, it holds boost longer in the rpm. However it will add peak boost if it isn't tuned properly as noted on my webpage. The request for boost and torque is already there on most tunes, but the car can't provide it because the factory wastegate actuator is too weak and can't close itself to increase boost. The factory actuator opens at just under 6psi and it varies car to car, the weakest one I have tested was actually off my personal car and it started to open at 4psi.
 


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#79
...I didn't say it adds boost, it holds boost longer in the rpm. However it will add peak boost if it isn't tuned properly as noted on my webpage. The request for boost and torque is already there on most tunes, but the car can't provide it because the factory wastegate actuator is too weak and can't close itself to increase boost. The factory actuator opens at just under 6psi and it varies car to car, the weakest one I have tested was actually off my personal car and it started to open at 4psi.
Ok, on my car, the "spring" pressure with no electronic boost control (zero WGDC) is around 5psi. The "spring" pressure comes about by the system applying ALL the manifold pressure to the WGA. The boost control system "adds" boost by interrupting the manifold pressure from reaching the WGA. The WGDC determines the actual pressure in the manifold.

Are you saying that the OEM WGA allows the manifold pressure to open the WG valve with NO WGDC applied? If so, then the WGA is "bad" or the WG valve rod is adjusted incorrectly. I'm just trying to understand the actual reason for your assertions that the Tune+ WGA is "better".
 


OP
Tune+
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Lewisville
Thread Starter #80
Ok, on my car, the "spring" pressure with no electronic boost control (zero WGDC) is around 5psi. The "spring" pressure comes about by the system applying ALL the manifold pressure to the WGA. The boost control system "adds" boost by interrupting the manifold pressure from reaching the WGA. The WGDC determines the actual pressure in the manifold.

Are you saying that the OEM WGA allows the manifold pressure to open the WG valve with NO WGDC applied? If so, then the WGA is "bad" or the WG valve rod is adjusted incorrectly. I'm just trying to understand the actual reason for your assertions that the Tune+ WGA is "better".
I would have a read through what I explained above one more time.

WGDC is just the duty cycle that is being supplied to the boost control solenoid. If you have 0% duty cycle you will have 4-6psi depending on the vehicle and configuration. I think we all know how the ford factory oem boost control system works. How does my actuator "add" boost without changing the tune? Easy, 50% WGDC usually makes about 20psi on the Fiesta's stock actuator, 50% WGDC will make about 23psi on my actuator because there is more force holding the wastegate arm shut. So 50% WGDC doesn't always equal the same distance of travel on the actuator, it all depends on the spring that is in the canister.

In the upper RPM there is an increase in boost because the actuator is now strong enough to overcome the exhaust mass and allow the turbo to continue to cycle the air around the turbine. The turbo stops creating charge when the wastegate is open and the exhaust pressure is diverted away from the turbine. No matter how much WGDC you throw at the stock actuator it will not close in upper RPM, the exhaust mass force is too great and overpowers the weak 5psi spring. With my actuator you can actually have the wastegate arm closed for 100% of the rpm range. The reason why the turbo cannot hold boost all the way to redline is because the turbo can only flow so much air. The stock actuator is very close to allowing the turbo to overspin and reach it's max efficiency, that is why the psi increase with my actuator is only 1-3 psi and not 10-14psi. Once the turbo is beyond it's efficiency threshold it cannot produce anymore boost, regardless of how much exhaust is being cycled through the turbine.

The proof that my actuator performs has been documented on this thread, and other threads as well.

For anyone that purchases this actuator and is using another tuner, please let your tuner know the MAX WGDC needed with this actuator is 80%. Beyond 80% past 4,000rpms the efficiency threshold is clipped as outlined above.
 




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