• Apr 6, 2011
Chances are that just about every car you've ever owned featured some form of fuel injection, but the long-standard engine tech remains foreign territory in NASCAR. The sport has used carburetors since the racing series began in 1949, but that looks set to change later this year.

NASCAR reports on its website that fuel injection testing could happen as soon as July 7 at Kentucky Speedway. The date has been singled out due to the fact that this is the first time the Cup Series has raced there, and NASCAR has given racing teams an extra four hours of testing on the Thursday before the race.

Danny Lawrence, chief engine builder for Earnhardt-Childress Racing Engines, is hoping NASCAR comes up with specifications so the teams can prepare, adding "I know they're working on it really hard, and hopefully, they'll have it figured out in a few days."

NASCAR is working with McLaren and Freescale Semiconductor to develop and manufacture engine control units to manage fuel and ignition systems. A wiring harness has reportedly already been developed, and the fuel-injector specification will be the next step. Teams are still wondering at this point if they'll receive a specification for the fuel injection system or if NASCAR will provide systems that everyone must use. Hat tip to Pawager!

[Source: NASCAR | Image: Todd Warshaw/Getty]


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    • 1 Second Ago
  • 55 Comments
      • 3 Years Ago
      NEW AGAIN ....NASCAR is studing L J tronic fuel injection ...WAJAJAJAJJAJAJAJAJAJA ...gues what car today even truck have 6 speed gearbox XD
      • 3 Years Ago
      [gasp!]
      • 3 Years Ago
      Welcome to the 80's, nascar!
        • 3 Years Ago
        Brits you can't differentiate the correct version of you're so your opinion is invalid.
        • 3 Years Ago
        2-wheel

        NASCAR engines can rev as high as 10,000rpm. They make a low pitched burble b/c of the firing order.

        Fuel injection and spec ECU is a good thing b/c they can get rid of the air restrictor.
        • 3 Years Ago
        Lol, well go ahead and downrate me if it makes you feel better.

        Silly to shoot the messenger though. Can't stop technological progress, my friend.. you either drag your heels and look like a dinosaur the entire time or you adapt like everyone else.
        • 3 Years Ago
        Dammit!
        I guess I'll never be poor and stupid enough to run a carb on my engine.
        No matter how much Vagisil I drink.
        • 3 Years Ago
        I am not a NASCAR fan, but to me it is what it is. Why this need for it to do things that other motorsports organizations do? Like it or not, it is unique in its own way. I know that the term "stock car" lost all meaning and is now ironic, but still it is what it is whether you like it or not and apparently it is challenging.

        We still have super giant horse racing events every year. Why don't they join the industrial age for Pete's sake?
        • 3 Years Ago
        wheeled your a tool,
        • 3 Years Ago
        Do not get too excited... they didn't say which year...
        • 3 Years Ago
        At the high, constant speeds these engines run, fuel injection is probably no more efficient than a well tuned carb.
      • 3 Years Ago
      Haha, As early as July? Classic!!!
      • 3 Years Ago
      how are they going to use plate restrictors then.....?
      it's gonna be a friggin' free- for- all!!!!
        • 3 Years Ago
        I assume they could just use smaller fuel injectors and just run it super lean. Nothing says power like a stroked engine with high flowing heads, large intake, full length headers and 19lb fuel injectors!
        • 3 Years Ago
        Umm, maybe bolt the restrictor plate to the throttle body?

        @Autoblog:

        "just about every car you've ever owned featured some form of fuel injection"

        Not exactly, way to make me feel old.
      • 3 Years Ago
      Haha, well said. I've yet to hear from a European driver, e.g. Dario Franchitti or Juan Pablo Montoya, who after racing one of these cars still had something negative to say about it.
      • 3 Years Ago
      NASCAR was never anti fuel injection per se, they are against computer controlled engines. They are afraid every race will turn into a fuel mileage competition. Standardizing a set of injectors would be a smart first move. See how it goes and then lighten up the rules later on. Otherwise, big money teams would get an ever BIGGER advantage than they do now. I think they should also drop the cubic inches to 305...or even to 280
      • 3 Years Ago
      The only thing i can find a carburetor now a days is radial plane engines and my lawnmower. Why are they so afraid of technology?? Unlike wrc and F1 which loves technology anybody agree??
        • 3 Years Ago
        Ural Motorcycles are still carb'ed.

        Triumph only went to fuel injection on the Bonneville a few years ago.
        • 3 Years Ago
        Actually even Ural has decided to switch to a Bosch fuel-injection system.
      • 3 Years Ago
      Wow...let's put some more lipstick on the old pig. NASCAR stopped being relevant in 1972.

      Since that time, NASCAR has been about race cars dressed up as non-existent 2-door variants of sedans.

      I don't care if they add fuel injection or anything else at this point. If I can't go to the showroom Monday to buy what raced on Sunday, I'll just stick to F1. At least they're not pretending to be anything but what they are.

      On the other hand, put a real Camry, Impala, Taurus and 300 (obviously with safety mods and weight stripping) out there and I'll watch as keenly as a G-man watching for moonshiners every damn week.

      By the way, I'm neither a crazy Luddite (I'm a huge fan of small diesels) or someone that demands all things cutting edge (I owned a '91 Grand Wagoneer with a carbureted AMC V8), so I don't have a prejudice against either fuel injection or carbs.
      • 3 Years Ago
      I don't think I have ever seen so many posts from the snide effete "elite."
      • 3 Years Ago
      I've even heard rumours of them contemplating thinking about the possibility of independent rear suspension, whatever that is. Sounds like something right up there with flying cars and jetpacks
      • 3 Years Ago
      All I want to know is, when will this technology trickle down to the average production car?
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