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    • Underground Racing 2R R8 5.2 V10 build puts down a jaw dropping 1831 horsepower to the wheels

      Now this is big boy horsepower. Most readers are aware that Underground Racing twin turbo Gallardo V10 builds have shown some absurd horsepower with 2000+ horses at the crank. The Audi R8 5.2 V10 has the exact same direct injected V10 motor as the newer LP-560 Gallardo's so on paper it should be capable of the same horsepower. Here is the result and proof in practice with an Underground Racing R8 5.2 2R hitting 1831 horsepower to the wheels.

      Yes, that is on race gas. What about on pump gas? How about 1150 horsepower at the wheels on 93 octane. A 1000+ wheel horsepower daily driven R8 is easily within reason.

      A Motec JRR ECU makes this all possible along with a strengthened drivetrain consisting of a billet diff and gears. Check out the dynograph and photos below. Much respect to Underground Racing for building the strongest R8's in existence.












      This article was originally published in forum thread: Underground Racing 2R R8 5.2 V10 build puts down a jaw dropping 1831 horsepower to the wheels started by Sticky View original post
      Comments 25 Comments
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Flinchy Click here to enlarge
        is that seriously like 600whp from barely off idle?!

        how is that accurate?!
        Why not? It's just starting to spool. That isn't off idle though likely a bit further up but wish we had the RPM graph to know exactly what is where.
      1. StinkyM's Avatar
        StinkyM -
        Exactly. This could be 5k rpm or 2k rpm. WE don't know.
      1. aaaaaaa's Avatar
        aaaaaaa -
        Criticize them? I applaud them for what they did not criticized them.

        ANd to answer this question : ''How were they supposed to know what the breaking point was? Just assume?''

        They should have tested the limits on their own project car not had customers breaking transmissions down before solving the issue. That is the only thing that bothered me about them and the trans is not something small to go out it is quite an expensive issue.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by aaaaaaa Click here to enlarge
        Criticize them? I applaud them for what they did not criticized them.

        ANd to answer this question : ''How were they supposed to know what the breaking point was? Just assume?''

        They should have tested the limits on their own project car not had customers breaking transmissions down before solving the issue. That is the only thing that bothered me about them and the trans is not something small to go out it is quite an expensive issue.
        You have to learn the breaking point by pushing it. You're points are ridiculous IMO and critical of the best on the platform.

        They are making 1831 wheel horsepower. Your comments are invalid by default.
      1. speeding-g60's Avatar
        speeding-g60 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        They are making 1831 wheel horsepower. Your comments are invalid by default.
        haha.....

        and to the guys asking about 600 hp off idle. they do not pull first gear, they pull a gear that is or closest to 1:1. and usually dyno stuff, depending on the car of course and setup, usually they start the pull around 2500-3000 rpms. we usually pull 3rd gear from 3500-8500. sometimes 4th gear, 4k to whatever rpm we lift at depending on how much the tires are spinning and losing traction on the rollers.