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Subaru Impreza 2.5 autronic sm4, r500

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  • Subaru Impreza 2.5 autronic sm4, r500

    Subaru Impreza 2.5 autronic sm4, r500

    http://www.russiandrag.ru/forum/showthread.php?t=1328









    8.9 sec run

    http://www.youtube.com/watch?v=nOAz13hguYQ

    A new subaru project run 1/4 m 8.911 sec without NOS.
    I am going use NOS (150hp) the next race and hope run faster.
    See a pics and enjoy
    Thank you
    Alex

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      • #4
        onboard video

        https://www.youtube.com/watch?v=XyDj...ature=youtu.be

        https://www.youtube.com/watch?v=n8bb...ature=youtu.be

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        • #5
          8.726 sec, now!!! The 2nd place at the world for Subaru 4 cyl

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          • #6
            How much boost?

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            • #7
              2.5 - 2.6 -2.8 for 1,2,3 boost curves

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              • #8
                Not good strip...last 60ft will less 1.27 sec. it is slippery.

                I am waiting around 8.5 sec for good strip.

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                • #9
                  on idle http://www.youtube.com/watch?v=TIjK3T5rKPg

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                  • #10
                    Subaru run 8.7 sec

                    https://www.youtube.com/watch?v=ddDP...ature=youtu.be

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                    • #11
                      Good day,

                      That's an extremely impressive effort, great work!

                      The boost pressure seems very conservative, is the engine and turbocharger package still under development? Can we expect to see the limits pushed further as there may be a lot left in reserve? Can you disclose what fuel is being used and what's your differential fuel pressure? With respects on your comments on available traction, what's the total weight of the car with driver and fluids please? Also? What size slick are you using? Can we review the class rules the car was built to be legal for competition please?

                      Great work once again, and please do keep the good times rolling. Awesome!!!

                      P.S. Are you using a data acquisition solution strategy other than what is available through the SM4? Whether you are or not, can you share some of the details you are paying close attention to for each run?
                      Damien King
                      Technical Analyst/Engine Management Calibrator
                      Stephen's Automotive Research & Development Engineering

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                      • #12


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                        • #13
                          Originally posted by sarde View Post
                          Good day,

                          That's an extremely impressive effort, great work!

                          The boost pressure seems very conservative, is the engine and turbocharger package still under development? Can we expect to see the limits pushed further as there may be a lot left in reserve? Can you disclose what fuel is being used and what's your differential fuel pressure? With respects on your comments on available traction, what's the total weight of the car with driver and fluids please? Also? What size slick are you using? Can we review the class rules the car was built to be legal for competition please?

                          Great work once again, and please do keep the good times rolling. Awesome!!!

                          P.S. Are you using a data acquisition solution strategy other than what is available through the SM4? Whether you are or not, can you share some of the details you are paying close attention to for each run?
                          gt4202r tial 1.06 non gtx, c13 (113 vp racing fuel), 2.5l engine 272 cam, MT Drag slick 26-8.5-15, total weight not above 1200kg with driver. Ask any, thank you!!! All logs and analyses by sm4 software.
                          Alex

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                          • #14
                            onboard video

                            https://www.youtube.com/watch?v=NqHC...ature=youtu.be

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                            • #15
                              Alex,

                              I had to look up VP 113 as it's not something I've seen in action or played with myself, where I live it's either C16 or Q16 which is heavily biased by our NHRA influences. I'm curious though, do you use C13 as choice, regulation or availability? Going on the fuel used, weight of car and size of tire, I think it's pretty close to some of the classes available in the import class of drag racing in the US. My guess is that the rules have some adherence to a street oriented class?

                              I assumed the car was using a SM4 wired box but I was surprised to see that it was a plugin SM4 ECU, that was different. Was that done out of convenience, or was it a case of class rules infringement? Is this a customer car, or is it owned by yourself? I ask for two reasons, how do you manage race setup for chassis and driver aids and how quantitative is driver feedback? Are there any advantages or disadvantages when it comes to your existing data acquisition solution strategy? By that I mean, are there things along this line you hoped for to make your job easier or do you have everything necessary for successful runs?

                              Aside from very quick ET, which was a wild rid down the drag strip by the way, were there any specifics which stood out about this project? Were there any particular challenges or surprising results which stood out while you were working through to project completion? Lastly, was it a start to finish affair, or did the project evolve over time with many improvements?

                              Great work once again and thanks for sharing, cheers!
                              Damien King
                              Technical Analyst/Engine Management Calibrator
                              Stephen's Automotive Research & Development Engineering

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