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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. BlackJetE90OC's Avatar
        BlackJetE90OC -
        Crazy!
      1. benzy89's Avatar
        benzy89 -
        Looks like they revised the intercooler & exhaust design
      1. SpeedLimit?'s Avatar
        SpeedLimit? -
        insane work! I just wish they used an awd dyno for a more accurate whp reading.
      1. chrisisnapping's Avatar
        chrisisnapping -
        damn that's a sexy set up.

        i guess it's safe to assume it doesn't have the 7 speed DSG in it though.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by chrisisnapping Click here to enlarge
        i guess it's safe to assume it doesn't have the 7 speed DSG in it though.
        It isn't the facelift model.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by SpeedLimit? Click here to enlarge
        insane work! I just wish they used an awd dyno for a more accurate whp reading.
        Some dynojets are AWD. How can you confirm this wasn't?

        Anyways, I wished they would show rpm instead of mph on the graph, it looks like a 6th gear pull lol.
        Still, nothing will even come remotely close to this much power. UGR and NRE is where you go when you have deep pockets.
      1. 135pats's Avatar
        135pats -
        Yea +1 on having RPMs on the axis as opposed to speed.


        But. 18xx horsepower is nutty. Seriously impressive stuff
      1. Adrenacide's Avatar
        Adrenacide -
        That build is clean. Really impressive finishings.
      1. aaaaaaa's Avatar
        aaaaaaa -
        At last they are properly building these cars. In the beginning they just did the engine upgrades leaving the drive-train stock and most Lambos were breaking the AWD system ending up with rwd and a very unjoyful ride. Now they are building the cars to the last bit the way they are supposed to.
      1. UsualSuspect's Avatar
        UsualSuspect -
        That's Brandon Jacobs car, correct?
      1. chrisisnapping's Avatar
        chrisisnapping -
        Click here to enlarge Originally Posted by UsualSuspect Click here to enlarge
        That's Brandon Jacobs car, correct?
        If it is, I wonder if he'll get another NJ state trooper escort down to Atlantic City to test it out on the parkway. Click here to enlarge
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by chrisisnapping Click here to enlarge
        If it is, I wonder if he'll get another NJ state trooper escort down to Atlantic City to test it out on the parkway. Click here to enlarge
        Think the troopers are gonna need something a little more powerful than their Crown Vics/Chargers/Durangos
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by aaaaaaa Click here to enlarge
        At last they are properly building these cars. In the beginning they just did the engine upgrades leaving the drive-train stock and most Lambos were breaking the AWD system ending up with rwd and a very unjoyful ride. Now they are building the cars to the last bit the way they are supposed to.
        Kind of a ridiculous point.

        Why wouldn't the builds evolve? How were they supposed to know what the breaking point was? Just assume?

        You have to build, test, upgrade, and keep going. At least they never quit and kept on going and continue raising the bar. Why criticize them for doing so?
      1. SpeedLimit?'s Avatar
        SpeedLimit? -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        Some dynojets are AWD. How can you confirm this wasn't?

        Anyways, I wished they would show rpm instead of mph on the graph, it looks like a 6th gear pull lol.
        Still, nothing will even come remotely close to this much power. UGR and NRE is where you go when you have deep pockets.
        The last time I checked, it was a rwd dyno that they had in their shop. One of their competitors does the same thing and they get defensive real quick if you make any mention of an awd dyno...happened to me the last I asked for an estimate of how much less power would it be on one which I thought was a fair/obvious question. And they most likely use mph as a strategy not to show what their engines rev to...this market is very secretive with those kind of details.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by SpeedLimit? Click here to enlarge
        The last time I checked, it was a rwd dyno that they had in their shop. One of their competitors does the same thing and they get defensive real quick if you make any mention of an awd dyno...happened to me the last I asked for an estimate of how much less power would it be on one which I thought was a fair/obvious question. And they most likely use mph as a strategy not to show what their engines rev to...this market is very secretive with those kind of details.
        This is all likely right on.

        Remember when Heffner posted a higher trap and the next day UGR took the record right back? They don't like to give an inch.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by SpeedLimit? Click here to enlarge
        The last time I checked, it was a rwd dyno that they had in their shop. One of their competitors does the same thing and they get defensive real quick if you make any mention of an awd dyno...happened to me the last I asked for an estimate of how much less power would it be on one which I thought was a fair/obvious question. And they most likely use mph as a strategy not to show what their engines rev to...this market is very secretive with those kind of details.
        Makes a lot of sense, thank you for that explanation.
      1. SpeedLimit?'s Avatar
        SpeedLimit? -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        This is all likely right on.

        Remember when Heffner posted a higher trap and the next day UGR took the record right back? They don't like to give an inch.
        Yeah, that was hilarious cause they also claimed to have an even faster run but produced no time slip or video.

        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        Makes a lot of sense, thank you for that explanation.
        No prob bro...that community is the complete opposite of ours. I'm glad our tuners are much more confident in their products and give us more access to information.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by SpeedLimit? Click here to enlarge
        No prob bro...that community is the complete opposite of ours. I'm glad our tuners are much more confident in their products and give us more access to information.
        Definitely, I guess when you're dropping that much money. You're probably too busy making more of it on the other side than to even worry about what information the products have LOL.
      1. Linracing's Avatar
        Linracing -
        That car is sick!
      1. Flinchy's Avatar
        Flinchy -
        is that seriously like 600whp from barely off idle?!

        how is that accurate?!