ksegg
Emira Fanatic
I've been tracking my Emira since my initial deposit in November 2021.
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Please let me know how you do this.It'll be fun fine tuning the Emira into a trackable car -- hopefully it will pass the sound station under WOT at Laguna or I'll have to get creative again with a CAN bus system to quiet the exhaust around certain GPS range of the sound station.
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Please let me know how you do this.
We are so lucky to have Laguna Seca, Thunderhill, Sonoma and Buttonwillow nearby. I plan on 6-10 track days. Not all will be Emira- several will be in an M2 CS manual which is a track beast.
The Emira is just perfect though for Rt 9,84, Mines/Mt. Hamilton, and some of the Marin got spots.
Can't wait!
Let's talk offline about this. So coolYeah it’s nice being so close to so many tracks!
If you’re inquiring how I do the exhaust flap manipulation, I do it all with an obd2 pluggable device. It’s a programmable Arduino device with a serial CAN bus module that can receive and transmit to the bus. It also has a GPS chipset and an antenna I added. Put it all together and write some code and it constantly polls the GPS location at 1 second intervals, if it detects its within the radius of the Laguna sound station, it sends the CAN packet to close the exhaust valves and then reopens them when you leave the area.
I should be able to get one working for the Emira hopefully -- once I get an Emira of course. I believe the 2GR valve system on the Evora and Emira will be vacuum based but still controlled somehow via CAN bus. Hoping to do some sniffing with the Emira CAN system that way I can also identify all the CAN IDs for motorsport datalogging equipment.Wow, that's an ingenious solution. My Evora has 3rd cat delete, it's fine on static noise but can be an issue on drive-by. I just short shift going past the noise meter if the track is having a lower-limit day.
Um.
I think it might be more complicated than the Evora.
That has a simple open/closed vacuum valve but the Emira has a more complicated, continuously variable, electrically operated valve.
KitKat, that is a wild setup! I wonder if something is available for the 6th gen camaro. It definitely won’t pass sound!If it's just electronically operated that might make it simpler for me as likely the position in which it's open to is just a range of values that correspond to how open or closed it is. The problem will be with sending enough of these packets to override whatever the ECU or other system may be controlling the valve is sending -- I'm guessing the valves are fully open after a specific RPM which won't really matter when passing a sound station as you'll be unlikely to be under 2000rpm or whatever cruising RPM is.
KitKat, that is a wild setup! I wonder if something is available for the 6th gen camaro. It definitely won’t pass sound!
I plan to track the Emira too but the camaro will likely be my go to track car. It’s just so Much easier to get parts and service if something were to go wrong. It’s fun as hell too!
Wow! That is time consuming. Maybe I’ll just get Laguna pipes and call it a day.Sound checks are such a pain
From my initial searches, 6th gen Camaro also has valves controlled via CAN bus, which means it’s possible but I haven’t seen anyone do it for your car. To be perfectly honest, I don’t think I’ve ever seen anyone else even attempt or achieve this on any other car. I’ve seen some 911 GT3s hardwire an Arduino / Raspberry Pi to a relay for their vacuum system — but not via CAN.
Unfortunately CAN hacking is super time consuming. Your car is constantly just sending a massive amount of data around on the CAN bus all the time. Identifying the CAN message IDs specific to your car and the correct byte values to send that instructs one or more valves to open or close took me 10+ hours of work for my BMW M4.
Simple direct control is better.Um.
I think it might be more complicated than the Evora.
That has a simple open/closed vacuum valve but the Emira has a more complicated, continuously variable, electrically operated valve.
Or maybe people shouldn’t move next to a race trackWow! That is time consuming. Maybe I’ll just get Laguna pipes and call it a day.