Fueling question on chipped 3b

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  • Craig
    S2Forum Fanatic
    • Feb 2004
    • 66
    #1

    Fueling question on chipped 3b

    Hi All

    My question is a simple one especially for Mihnea. I have a chipped 3B (Mihnea special). Would using 102 octane fuel harm the engine in any way?

    Cheers
    Craig
    Tags: None
    • Mihnea
      S2Forum Extremist
      • Jul 2003
      • 1288
      • Home: Belgium Current: United Kingdom
      #2
      Craig, nope, it sure won't, and IMHO you should get even better performance by allowing the ECU not to retard timing under heavy load accelerations...

      Try it and let us know how it works, there is no engine damage risk involved IMHO/IME!!!

      Mihnea
      '98 Silver Grey 2.7T S4, dual 2.75" turbo back exhaust with no cats, FMIC, BIG injectors, 10 Bar motorsport fuel pump, modded RS4 turbos, tubular exhaust manifolds, custom intakes, RS4 MAF, Bilstein PSS9, H&R ARBs, 19" BBS CH, custom remap, 511 BHP/505ft-lbs

      www.MRCTuning.com
      info@MRCTuning.com
      Workshop Directions

        Comment

        • Craig
          S2Forum Fanatic
          • Feb 2004
          • 66
          #3
          fUELING

          Thanks for the reply Mihnea. Will it take time for the ECU to adapt to the different fuel or will the performance increase be instantaneous?

          Craig

            Comment

            • Mihnea
              S2Forum Extremist
              • Jul 2003
              • 1288
              • Home: Belgium Current: United Kingdom
              #4
              Craig, I'd suggest you to disconnect the ECU when you fill up with 102 octane to make sure the ECU's adaption values are properly erased... otherwise it might take it a couple miles to get used to the new fuel....

              Cheers,

              Mihnea
              '98 Silver Grey 2.7T S4, dual 2.75" turbo back exhaust with no cats, FMIC, BIG injectors, 10 Bar motorsport fuel pump, modded RS4 turbos, tubular exhaust manifolds, custom intakes, RS4 MAF, Bilstein PSS9, H&R ARBs, 19" BBS CH, custom remap, 511 BHP/505ft-lbs

              www.MRCTuning.com
              info@MRCTuning.com
              Workshop Directions

                Comment

                • Craig
                  S2Forum Fanatic
                  • Feb 2004
                  • 66
                  #5
                  Could I just disconnect the battery terminal?

                    Comment

                    • Mihnea
                      S2Forum Extremist
                      • Jul 2003
                      • 1288
                      • Home: Belgium Current: United Kingdom
                      #6
                      Sure, or pull the ECU fuses (marked as "MOTOR-Moteur") in the fuse box.
                      '98 Silver Grey 2.7T S4, dual 2.75" turbo back exhaust with no cats, FMIC, BIG injectors, 10 Bar motorsport fuel pump, modded RS4 turbos, tubular exhaust manifolds, custom intakes, RS4 MAF, Bilstein PSS9, H&R ARBs, 19" BBS CH, custom remap, 511 BHP/505ft-lbs

                      www.MRCTuning.com
                      info@MRCTuning.com
                      Workshop Directions

                        Comment

                        • Lee
                          S2Forum Extremist
                          • Jul 2003
                          • 1512
                          • Country: United Kingdom
                          #7
                          I noticed an improvement with Millers CVL and Optimax in mine (claimed 101+ Octane). Now I am not using it the car feels like it has flatspots!! LOL! Very noticable difference before and after.
                          1995 S2 Avant with some upgrades

                          Designun Limited....
                          Aerospace, Space and Motorsport Design Consultancy and hardware supply.

                            Comment

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