12.1@115.2mph with a piggyback
Super Member
Joined: Jun 2017
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From: Toronto
2017 C43 AMG Cabriolet Black/Cranberry Red
If you don't break boost the car, you won't even get the car down the quarter at 13.5 lol
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From: North East
2017 AMG C43, AWE Touring, BMC Air Filters- 2015 BMW X3 3.5i (JB1 Equipped)
Look at the video that was posted of the C43 Racechip 0-60 run- performed by racechip, It don't seem like he is brake boosting in that video though.
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Joined: Feb 2016
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From: Taiwan
GLC43, X P100D, S P100D, CT200H
He is 100% torque breaking.
1. It doesnt sound like idle
2. They just dont hold the revs at 2000rpm, they release the brake the moment it hits 2000rpm.
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Joined: Jun 2017
Posts: 526
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From: Toronto
2017 C43 AMG Cabriolet Black/Cranberry Red
https://www.youtube.com/watch?v=IV_bsv4nBK0
He is 100% torque breaking.
1. It doesnt sound like idle
2. They just dont hold the revs at 2000rpm, they release the brake the moment it hits 2000rpm.
https://www.youtube.com/watch?v=zEzyUxM9csU
While this is not Racechips official video, see 1:54 and look at the tach vs the speedo.
He is 100% torque breaking.
1. It doesnt sound like idle
2. They just dont hold the revs at 2000rpm, they release the brake the moment it hits 2000rpm.
https://www.youtube.com/watch?v=zEzyUxM9csU
While this is not Racechips official video, see 1:54 and look at the tach vs the speedo.
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2020 GLC 63
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2002 CLK 430
Strange
Are costs to keep it going so high that the track can survive and do better without it?
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2020 GLC 63
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Senior Member
Joined: Nov 2005
Posts: 410
Likes: 176
2020 GLC 63
I don't know much about the race chip, but BMS taps into the same 3 sensors. BMS however has 3 maps, 2 of which are preset (1&2 +3/5psi) and map6 which gives you full control of boost, with a built-in safety.
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Joined: Sep 2017
Posts: 400
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From: North East
2017 AMG C43, AWE Touring, BMC Air Filters- 2015 BMW X3 3.5i (JB1 Equipped)
To bad no one is custom tuning the JB1 for the C43- sounds like it would really push things to another level. especially with 18bora success with tuning.
I am still trying to decide between the Racechip or JB1
I am still trying to decide between the Racechip or JB1
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Joined: Nov 2017
Posts: 180
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2018 C43
its not difficult to “self tune” with the JB1. All you are really doing is picking the psi over stock boost at a particular rpm range. For example 3.2 over ecu boost from 1000 -1500 RPM, 3.5 over ecu boost from 1500-2000 Rpm and so on. The ranges are per 500 RPM. The key to “self tuning” is being able to connect to the jb1 with either a BMS cable for a computer or Bluetooth ($140 at bms ) for an iPhone or iPad. Once you have a way to connect to the JB1 you can log,select map, or modify map6 to the boost levels over stock ecu boost. You can change boost over stock in increments of 500RPM. Hope that clears things up a bit.
Senior Member
Joined: Sep 2017
Posts: 400
Likes: 44
From: North East
2017 AMG C43, AWE Touring, BMC Air Filters- 2015 BMW X3 3.5i (JB1 Equipped)
its not difficult to “self tune” with the JB1. All you are really doing is picking the psi over stock boost at a particular rpm range. For example 3.2 over ecu boost from 1000 -1500 RPM, 3.5 over ecu boost from 1500-2000 Rpm and so on. The ranges are per 500 RPM. The key to “self tuning” is being able to connect to the jb1 with either a BMS cable for a computer or Bluetooth ($140 at bms ) for an iPhone or iPad. Once you have a way to connect to the JB1 you can log,select map, or modify map6 to the boost levels over stock ecu boost. You can change boost over stock in increments of 500RPM. Hope that clears things up a bit.
I remember the good old days when I flashed my 5.0 Mustang with an SCT Tuner through the OBDII, it came with three flash tunes, 89, 91 & 93 octane and could be put back to stock at any time. The best feature was you could log all data, including A/F ratios under real world, full throttle runs and it would be specific to your car. Then your tuner would custom map a tune based on that data and email it to you. This is what the JB1 sort of seems like but a lot less parameters to adjust. I remember my A/F ratio always needed to be custom tweaked.
Why can't Berger come out with something like this or anyone else?
