Video*** Turbo Emira Valvetronics Titanium Exhaust, Downpipe & JB4 Map 3

[Lotus F1]

This is a tough one. I may just have to wait a while over warranty. I have 2 years more. What I dont understand is how does some random Nevada tunning shop have this cracked for the I4. https://eurotektuning.com/index

 

[675430VME]

This is a tough one. I may just have to wait a while over warranty. I have 2 years more. What I dont understand is how does some random Nevada tunning shop have this cracked for the I4. https://eurotektuning.com/index

Vendors can say whatever they want, but so far there is only a few of us who have the ecu tuned, AFAIK

Do not mod if you worry about about warranty. Dealers will be able to trace down evidence, be it a bench flash, a clone, or a piggyback, they will find data to support that. Always modify at your own risk.

 

[F1 SML8R]

Vendors can say whatever they want, but so far there is only a few of us who have the ecu tuned, AFAIK

Do not mod if you worry about about warranty. Dealers will be able to trace down evidence, be it a bench flash, a clone, or a piggyback, they will find data to support that. Always modify at your own risk.

100% The reality is even if they crack the ECU (which that is hard in and of itself), they still have to contend with the CPC that is another limiting factor. The reality, the days of "cracking the ECU to tune" (i.e., the brain) are long gone. For anyone to be able to truly "tune", you need access to more than just the ECU (for the i4 it's at least the ECU and CPC).

 

[F1 SML8R]

@675430VME Curious, did your tuner crack both the ECU and CPC? If not, how do they deal with the CPC trying to correct any additional boost, power, torque when it hits the CPC limits?

 

[Lotus F1]

I confirmed with Eurotek. The numbers they got for the i4 is 510 brake horsepower and 495 foot pounds of torque. The CPC is stock programming.

 

[Rayjoedef]

I confirmed with Eurotek. The numbers they got for the i4 is 510 brake horsepower and 495 foot pounds of torque. The CPC is stock programming.

Do you know if that's a straight ecu tune or coupled with bolt ons?

 

[F1 SML8R]

I confirmed with Eurotek. The numbers they got for the i4 is 510 brake horsepower and 495 foot pounds of torque. The CPC is stock programming.

Can you poke them a bit more on how they deal with the CPC?

For anyone that doesn't know, even if you can get the ECU to increase boost, etc. to yield more HP and Torque, the CPC is essentially the safety check that scales it all back. I would get more clarity on how they are "getting around" this if they haven't cracked it. BTW, I posed the same question to our friend @675430VME above.

 

[Lotus F1]

Do you know if that's a straight ecu tune or coupled with bolt ons?

Straight tune

 

[Lotus F1]

Can you poke them a bit more on how they deal with the CPC?

For anyone that doesn't know, even if you can get the ECU to increase boost, etc. to yield more HP and Torque, the CPC is essentially the safety check that scales it all back. I would get more clarity on how they are "getting around" this if they haven't cracked it. BTW, I posed the same question to our friend @675430VME above.

I don't believe that is the function of the CPC. "Clutch pressure controller". It increases the clutch pressure to allow it to handle more power. It doesn't scale it back to protect. It will However slip if there's not enough pressure and to much power. However I do agree getting control of it would be beneficial as let's say for the c8 you can increase the pressure by 15% which allows that car to handle 200 more horsepower

 

[F1 SML8R]

Nope, I'm referring to something called the Central Power control unit or something close to that name (I may be off by a letter). It's essentially another layer above the ECU that handles the communication between the ECU, TCU (transmission) and a few other electronic units. It's come up in a few of the JB4 and VF Tuner threads. Trust me, it's a limiting factor. That's why I'm curious how your tuner is dealing with it. If you ask him, he'll know what this is in reference to.

 

[Rayjoedef]

Nope, I'm referring to something called the Central Power control unit or something close to that name (I may be off by a letter). It's essentially another layer above the ECU that handles the communication between the ECU, TCU (transmission) and a few other electronic units. It's come up in a few of the JB4 and VF Tuner threads. Trust me, it's a limiting factor. That's why I'm curious how your tuner is dealing with it. If you ask him, he'll know what this is in reference to.

...and i believe the cpc is specific to mercs

 

[F1 SML8R]

See this post for more on the "CPC" I referenced. Again, I encourage any tuner, enthusiast, etc. to chime in on how they re dealing with this. If they aren't commenting, it's probably because they aren't addressing it (other than keeping the tune under the CPC's hard stop limit parameters, meaning a materially milder tune).

i4 Tuning Underway....

We have a i4 here along with our Calibrator, Brent. He has unlocked the ECU and will get started this week, If you are in SoCal, stop in and meet us at our Tech Seminar this Saturday. Learn more about our Emira tuning efforts as well...

www.emiraforum.com

 

[1031ent]

Does anyone have a video of the i4 Valvetronics exhaust without the Valvetronics down pipe installed? My understanding is the down pipe needs an ECU tune or it will throw CEL lights and possibly fail emissions.

So videos of the Valvetronics exhaust with the downpipe are really irrelevant for me.

 

[TurboTambo]

Does anyone have a video of the i4 Valvetronics exhaust without the Valvetronics down pipe installed? My understanding is the down pipe needs an ECU tune or it will throw CEL lights and possibly fail emissions.

So videos of the Valvetronics exhaust with the downpipe are really irrelevant for me.

O2 Spacers.... CEL lights fixed. Not sure about emissions though.

 

[1031ent]

I ordered a Valvetronics exhaust over a month ago. Still waiting about ready to cancel. Actually left a message to cancel because I am tired of paying for things and having long delays.

 

[AMG Emira]

Vendors can say whatever they want, but so far there is only a few of us who have the ecu tuned, AFAIK

Do not mod if you worry about about warranty. Dealers will be able to trace down evidence, be it a bench flash, a clone, or a piggyback, they will find data to support that. Always modify at your own risk.

Yeah, I ha e 2 years left in warranty so I'm holding off on performance mods until after 2028. Thanks for letting us know they can trace piggybacks, I'll hold off on JB4 for now then

 

[675430VME]

@675430VME Curious, did your tuner crack both the ECU and CPC? If not, how do they deal with the CPC trying to correct any additional boost, power, torque when it hits the CPC limits?

I don't believe that is the function of the CPC. "Clutch pressure controller". It increases the clutch pressure to allow it to handle more power. It doesn't scale it back to protect. It will However slip if there's not enough pressure and to much power. However I do agree getting control of it would be beneficial as let's say for the c8 you can increase the pressure by 15% which allows that car to handle 200 more horsepower

Lotus F1 is correct. The CPC problem with higher power tune is the clutch pressure controller. When you exceed the safety margin it will slip and give you a CEL. Boomgear built the curve around it to give a little more head room before it triggers the warning. For street driving and mountain pass I have never encountered any problem, but if you are tracking laps after laps without cool down period then it becomes a problem. My original tune was at 500 hp but encountered cpc problem during heavy track sessions so I had it tuned down to 480-490 for peace of mind. Emira with 480 hp is already a 3 seconds car and that is enough for me in the streets of China.