2 Stage Boost

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  • 4WheelDrifter
    S2Forum Zealot
    • Oct 2004
    • 5773
    • Country: Devon

    #16
    I'll be very interested in the outcome of this one. Optimax is pretty scarce around me. The nearest pumps are 15 miles away, and not necessarily in the direction I want to go. I was only saying earlier this week, 2 different switchable chips would be a good idea.
    SS

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    • The Spanish
      S2Forum Maniac
      • Nov 2003
      • 719

      #17
      A little bit off-topic.

      I don't know why only Shell do a 98 RON fuel in the UK.

      Here in Spain were cars are a lot more crappy and money in the pockets is a lot less we have 98RON in every single Gas Station.

      BP even produces an Ultimate that is supposed to be 98+RON.

      Either they all lie here and we have just 95 RON or I dont see why anybody starts a business in the UK with high octane fuel with all the performance cars around there.
      94' RS2 Coupe TT (Twin Torsen )

      Comment

      • Crawford_S2
        S2Forum Extremist
        • Jul 2003
        • 1555
        • Home: Scotland Current: England

        #18
        With this two stage map thing, would it be technically possible to run an ABY with no cats and have a performance map and a "get an MOT with no cats" map. I know some places get snooty about cats missing but it is my understanding that if it passes the emmisions test they ain't going to be looking for cats underneath. Can a map even do this? Would run like poo in all probability but the tester wouldn't care and id have more than 3 inches ground clearance!
        Ragusa Coupe gone!
        sigpic
        VW T4 Multivan. TSW Holstens hiding in the garage for the winter.
        VW Mk1 Caddy pickup, modded or "ruined"
        vw T5 Kombi. In the process of being "ruined"

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        • Mihnea
          S2Forum Extremist
          • Jul 2003
          • 1288
          • Home: Belgium Current: United Kingdom

          #19
          There is NO MOT with no cats map. This is technically unachievable. I've breathed exhaust fumes on Lee's car at Greg's dad's garage last year during more than 1 hour trying to get the car to pass MOT with no cats and no luck, it is not possible....


          Mihnea

          Originally posted by groofosp
          With this two stage map thing, would it be technically possible to run an ABY with no cats and have a performance map and a "get an MOT with no cats" map. I know some places get snooty about cats missing but it is my understanding that if it passes the emmisions test they ain't going to be looking for cats underneath. Can a map even do this? Would run like poo in all probability but the tester wouldn't care and id have more than 3 inches ground clearance!
          '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

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          • Jeffer
            S2Forum Fiend
            • Jul 2003
            • 2057
            • Country: Netherlands

            #20
            Would 3 also be possible
            GF mode
            "normal" road mode
            High Octane mode

            hehe
            RS2 Black - stock 315 HP
            RS2 RS blau - stock 315 HP
            Sport Quattro - 1005 HP
            High Octane website

            Comment

            • Doug_RS2
              S2Forum Possessed
              • Jul 2003
              • 3847
              • Home: Scotland Current: England

              #21
              yes jeffer.
              S2,RS2,S4 WB,RS4,S4 B8,RS6 C5,RS6 C6,R8

              Comment

              • Mihnea
                S2Forum Extremist
                • Jul 2003
                • 1288
                • Home: Belgium Current: United Kingdom

                #22
                LOL, now 3 maps takes a while to map, I can tell ya
                '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

                • Jeffer
                  S2Forum Fiend
                  • Jul 2003
                  • 2057
                  • Country: Netherlands

                  #23
                  Originally posted by Mihnea
                  LOL, now 3 maps takes a while to map, I can tell ya
                  Ah I can wait 1 more day
                  RS2 Black - stock 315 HP
                  RS2 RS blau - stock 315 HP
                  Sport Quattro - 1005 HP
                  High Octane website

                  Comment

                  • Sidspud
                    S2Forum Extremist
                    • Jul 2003
                    • 1223
                    • Home: Scotland Current: United Nations

                    #24
                    Can you not get a multi-mode map for more modern Audis from Revo? I'm sure I've seen something like that advertised.
                    ex '93 Avant owner

                    Comment

                    • Mihnea
                      S2Forum Extremist
                      • Jul 2003
                      • 1288
                      • Home: Belgium Current: United Kingdom

                      #25
                      Kenny, Revo's stuff is not really multi-map, it plays with different settings of the ECU that one can pre-set when you do the chip. Technically it's a good idea, but tuning-wise it still needs some messing with it...

                      I'm currently working on a solution that would bring a newer ECU to stock power levels with vag-com or with an OBD-2 switch that would do the same job automatically...

                      On most TDIs that I tune, they can be reset back to stock just by recoding the ECU with VAG-Com, it's totally invisible...


                      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

                      • Jamo
                        Retired OG Mod
                        • Mar 2004
                        • 21750
                        • Country: United Kingdom

                        #26
                        Originally posted by Jeffer
                        Would 3 also be possible
                        GF mode
                        "normal" road mode
                        High Octane mode

                        hehe
                        Haha, i tend to find GF mode works by removing the keys from the ignition! :mischeif:

                        Top stuff Mihnea!, Doug your going to have let me ride shotgun in you car once it's remapped. I'll make sure i have a change of underwear.........

                        Comment

                        • Jonas_R
                          S2Forum Possessed
                          • Jan 2004
                          • 3780
                          • Country: Denmark

                          #27
                          Mihnea, do you ever come to scandinavia?

                          /Jonas R.
                          Sleeper S2 Avant +450

                          A6 Avant 2.7t Stage 3

                          Audi S2 Coupe RS2'ed

                          Comment

                          • dan_b
                            S2Forum Possessed
                            • Sep 2003
                            • 3670
                            • Home: United Kingdom Current: England

                            #28
                            The new BMW M5 - the 5litre v10 one with 500BHP: that has a two-stage map as standard apparently.
                            When you start the car it's in 400BHP mode; if you want the extra 100BHP, you select the M button the steering wheel and you get the full 500BHP.

                            Impressive technology from a normally aspriated engine if you ask me. Far too clever for my tiny brain to cope with.
                            Ex S2 owner, now running around in an A4 Avant quattro...

                            Comment

                            • audiman
                              S2Forum Freak
                              • Jul 2003
                              • 4827
                              • Country: United Kingdom

                              #29
                              Dougs car will be interesting. Im looking forward to driving it to see how it compares with mine. Should be intersting as both cars will be running the same turbos and IC's, only differences being mine has tubular manifold and 3" exhaust and Dougs has AAN intake and 2.5" exhaust
                              sigpic
                              Tom C - www.rcmr.co.uk
                              Audi UR Quattro
                              Audi 100 C3 2.0 5 cyl 115ps
                              Audi S2 - 07k engine project aiming for 800ps
                              Audi B5 RS4 645ps 911nm

                              Comment

                              • Lee
                                S2Forum Extremist
                                • Jul 2003
                                • 1512
                                • Country: United Kingdom

                                #30
                                Originally posted by dan_b
                                The new BMW M5 - the 5litre v10 one with 500BHP: that has a two-stage map as standard apparently.
                                When you start the car it's in 400BHP mode; if you want the extra 100BHP, you select the M button the steering wheel and you get the full 500BHP.

                                Impressive technology from a normally aspriated engine if you ask me. Far too clever for my tiny brain to cope with.
                                Bit like the Corvette ZR1. 32 valve V8 with 16 intake butterflies. All are used unless you set it to VALET mode where it reduces the number of butterflies used per cylinder to only 1 (instead of 2). Must also be some clever mapping behind that too to keep the mixtures from leaning out too much...that was 13 years ago.

                                Some 70's yank tank had pneumatic valves and could be driven on 4, 6 or 8 cylinders selectively. Smart stuff back then. Can't remember the name and it probably only span to 2,000rpm before tearing itself to pieces!! LOL! I think that came out of the 70's oil crisis and the need to make engines more economical.

                                Doesn't the new M5 use 2 ECUs?
                                1995 S2 Avant with some upgrades

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

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