Emira JB4 Tuning Now Available for I4 & V6 Cars!

[Emira Fan]

Terry, for the AMG engine - what is the Max Boost target for Map 2 with 93 octane? Assume US/China engines are running about 30 psi, thanks

 

[Terry]

Terry, for the AMG engine - what is the Max Boost target for Map 2 with 93 octane? Assume US/China engines are running about 30 psi, thanks

Boost will vary based on ambient conditions as the ECU is load based. But around 23-26psi on map2. Stock is 19-22psi in our testing.

 

[tnbuilder]

Would the OBDII need to be connected all the time? Like, could it be connected for a couple hundred miles and then the log sent in to have the map modified, or since temp and humidity changes all the time, does it need to be connected all the time.

 

[Terry]

Would the OBDII need to be connected all the time? Like, could it be connected for a couple hundred miles and then the log sent in to have the map modified, or since temp and humidity changes all the time, does it need to be connected all the time.

You can just route it on a temporary basis when you want to have full logging active for example.

 

[Emira Fan]

Boost will vary based on ambient conditions as the ECU is load based. But around 23-26psi on map2. Stock is 19-22psi in our testing.

High level your system is raising boost levels about 4 psi off stock config. thanks

Interesting that Mercedes indicates the M139 turbo produces
[Peak boost is just under 30.5 psi for the S engine trim and just over 27.5 for the base engine.]
Of coarse no gauges on the cars to confirm.

 

[Rupes]

Posted in the install thread but here is the 93 map with ACN91 + Boostane Shot, Terry @ BMS gave it the OK based on logs.

View attachment 65642

This is good to know. I’ve read Boostane turns your spark plugs orange. Any idea of the science behind this, or maybe more importantly, if it matters or reduces the lifespan of the plugs?

 

[kitkat]

This is good to know. I’ve read Boostane turns your spark plugs orange. Any idea of the science behind this, or maybe more importantly, if it matters or reduces the lifespan of the plugs?

Don’t really know but if I have to replace the spark plugs every 30,000 mi instead of 50,000 I’m going to throw a fit over the extra $30 in amortized wear over 5-10 years jk jk

 

[BobbyG]

Don’t really know but if I have to replace the spark plugs every 30,000 mi instead of 50,000 I’m going to throw a fit over the extra $30 in amortized wear over 5-10 years jk jk

Now that is funny.

Thankfully, 93 octane is readily available in Missouri.

In the past, I could buy VP Racing 5 gal. pails for $60 that I ran in a Mustang GT that was highly modified. Not anymore

 

[Rupes]

Don’t really know but if I have to replace the spark plugs every 30,000 mi instead of 50,000 I’m going to throw a fit over the extra $30 in amortized wear over 5-10 years jk jk

Yeah, fair enough, probably doesn't matter a whole lot, just weird.

 

[675430VME]

Boost will vary based on ambient conditions as the ECU is load based. But around 23-26psi on map2. Stock is 19-22psi in our testing.

That's strange, we hit 2.5 bar on another piggyback.

 

[DriverMod]

This is good to know. I’ve read Boostane turns your spark plugs orange. Any idea of the science behind this, or maybe more importantly, if it matters or reduces the lifespan of the plugs?

That’s from MMT additive in the Boostane, also happens with leaded fuel. Yes it reduces the life of your spark plugs and your O2 sensors, as well as other things.

 

[BobbyG]

If using Octanium Unleaded in vehicles with Emission Control Devices (ECD), dosage should be limited to 11 oz per 10 gallons of gasoline. Non-ECD vehicles can utilize up to 23 oz per 10 gallons of gasoline for long-term use or 32 oz per 10 gallons for short-term use but will require more frequent maintenance to prevent harmful damage or coating to engine parts.

The above is from VP Racing regarding their Octanium product.

I would assume all octane boosters work in a similar fashion.

 

[lynchy73]

That's strange, we hit 2.5 bar on another piggyback.

View attachment 66210

Yes, I remember seeing this clip before. It’s circa 2 bar or 29lb standard, right?

@675430VME Had a chance to install your JB4 yet?

 

[675430VME]

Yes, I remember seeing this clip before. It’s circa 2 bar or 29lb standard, right?

@675430VME Had a chance to install your JB4 yet?

Have a track event at the end of month, I will wait after that, dun wanna have the injectors quit on me lol

 

[Emira Fan]

​

675430VME​

[That's strange, we hit 2.5 bar on another piggyback.]​

​

This is what I was expecting 2.5psi is about 36 psi, you must be pushing 500hp at the wheels.​

​

Do you have a draggy ? with 500HP I bet your able to dip into the 2s for 0-60 subtracting roll-out on a nice day.​

Which piggy -back are you using?​

 

[Terry]

That's strange, we hit 2.5 bar on another piggyback.

View attachment 66210

Perhaps we have the boost reading in the app scaled low then if people are seeing 2bar factory tuning on a mechanical gauge. Any turbos with a JB4 on the car and a mechanical gauge can send in a video and log and if needed we'll adjust that.

 

[robrmon]

You can just route it on a temporary basis when you want to have full logging active for example.

By this point will it have “learnt”, at which point you can remove the ODBII yet the car still retains the smoother settings??

 

[Terry]

By this point will it have “learnt”, at which point you can remove the ODBII yet the car still retains the smoother settings??

No it doesn't work that way. The extra data coming in is dynamic and changes based on real time run conditions. So the OBDII data is only active when fresh/current data is coming in.

 

[robrmon]

No it doesn't work that way. The extra data coming in is dynamic and changes based on real time run conditions. So the OBDII data is only active when fresh/current data is coming in.

Thank you for clarifying

 

[Ryan_929]

For those installing this on the V6 cars, instead of drilling the firewall there is a large rubber grommet behind the drivers side that you can use to feed the OBD cable through the firewall. You’ll need to do this by feel (unless you take off the panel but it’s totally doable).
View attachment 64632
View attachment 64634

Yup. 2.0 is the same. That’s where I ran my power cable for the amp. One person in the engine bay and one in the cabin with a coat hanger. Was fairly easy to grab onto it and pull it through.