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2020 C43 JB4 Dyno Testing

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  • #1

    2020 C43 JB4 Dyno Testing

    Hey guys,

    Was able to get a 2020 facelift C43 model in for a little test and tune fun!

    Best run 100% stock on 91 octane was 340whp/350wtq.

    JB4 (no BCM) on 91 octane testing was 380whp/412whp on map2. Really solid gains under the curve overall.

    Next we decided to mix in 4 gallons of E85 for ~E30 and installed a BCM. Power jumped up to 400whp/488whp using (new) map5.

    Finally we got to what we really wanted to test. The BMS intake using our new V3 heat shields (in development now), and got power up to 419whp/496wtq. I attached a log of that run for reference. Boost is up there at 21psi peak tapering to 15psi but nothing too crazy. Probably more in it next go around.

    Finally for kicks we disabled the BCM so we could see what the likely max facelift power is without it. Peak was 413whp/447wtq but you could see the massive torque reduction down low in the charts. The BCM does wonders for facelift cars running E30!

    We were not able to test 91 octane + BCM but I don't expect it would do a ton. Maybe on 93 octane... Next time!


    Attached Files
    Burger Motorsports
    Home of the JB4 the worlds most popular turbocharged tuning system!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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  • #2
    Default JB4 settings?

    Comment

    • #3
      Originally posted by spike98 View Post
      Default JB4 settings?
      Yes, off the shelf JB4.
      Burger Motorsports
      Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

      It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

      Comment

      • #4
        Sorry to post in this.

        Have you guys gotten a check engine light for low fuel pressure. Had one twice in 2 weeks on stage 3. Hit the limiter a couple night ago and it popped on as well. Have you guys seen this before? I was reading another thread where someone hooked up a green wire?.


        The car is a 2020 C43 convertible, BMS intake, JB4, BCM.

        Comment

        • #5
          Would you expect the same power curve changes with the BCM on non-facelift?

          Comment

          • #6
            Originally posted by MatthewJ View Post
            Would you expect the same power curve changes with the BCM on non-facelift?
            Not quite as pronounced but should still see a nice torque boost with it.
            Burger Motorsports
            Home of the JB4 the worlds most popular turbocharged tuning system!

            It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

            Comment

            • #7
              This will also work for 2022 GLC43 right? Should be the same numbers?

              Comment

              • #8
                Originally posted by hotbrick View Post
                This will also work for 2022 GLC43 right? Should be the same numbers?
                Yes!
                Burger Motorsports
                Home of the JB4 the worlds most popular turbocharged tuning system!

                It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

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                • #9
                  Ok ready to order. Literally drove this thing off the lot two nights ago. Lol

                  This is what I need right?
                  Attached Files

                  Comment

                  • #10
                    Correct
                    Burger Motorsports
                    Home of the JB4 the worlds most popular turbocharged tuning system!

                    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

                    Comment

                    • #11
                      Ok thanks order just placed

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