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Dyno Video: Watch A (Claimed) Stock Bottom End, Turbocharged 4.8 LS Engine Put Down 700+ HP To The Tire Of A 1971 Datsun 240Z


Dyno Video: Watch A (Claimed) Stock Bottom End, Turbocharged 4.8 LS Engine Put Down 700+ HP To The Tire Of A 1971 Datsun 240Z

Another day, another 100% bad ass turbocharged LS engine working on the dyno. Yesterday we showed you a 322ci combo making over 1,000hp on the engine dyno and today we’re back on the pump but this is a chassis dyno and the mill is the junior member of the LS family, the little 4.8 liter engine. This one is installed in a 1971 Datsun 240z and it is claimed to be a stock bottom end combo. This may be the hardest working 288ci engine you’ve laid eyes on because the little bastard puts out over 700hp to the TIRES of the Z according to the computer dyno read out. Listen, we know that these numbers aren’t the end all, be all but damn….that’s pretty impressive. Before you start slinging stones and calling this car a dyno queen, we’ll also include a video of the same car running into the 8-second zone at the strip to prove its oats.

With two LS videos in two days we’re probably looking like fan boys or groupies but here’s reality. Of all the “modern” big three V8 engines, the LS is miles easier to hot rod than anything else. Hell, you can swap the freaking cam without having to pull the intake manifold. To swap the cam in the metric Hemi you have to pull the heads off and to swap the cam in the good Ford motors you need four damned cams. There’s a reason that the LS motor is ever present in virtually all applications. It is user friendly, plentiful, and cheap, just like Zora Arkus Duntov proposed 50 years ago in his famous memo to GM executives regarding the small block Chevy.

All that being said, this car is bad to the bone.

PRESS PLAY BELOW TO SEE A 240Z LAY SOME BIG NUMBERS DOWN ON THE DYNO AND ON THE STRIP!


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6 thoughts on “Dyno Video: Watch A (Claimed) Stock Bottom End, Turbocharged 4.8 LS Engine Put Down 700+ HP To The Tire Of A 1971 Datsun 240Z

  1. William Robinson

    Hit rod did a writ up about a 5.3 ls engine and a knock off chine enginese turbo install. They ran it in an dyn repeatedly and made over 100 hp consistantly. They tore it down after noticing somthing didnt add up and realized it was only a 4.8. I believe that all they did was change the cam and ring gap to make it live with the boost and they out over twenty pulls on it and went on to say that if detuned to say 700-800 hp it would be quite happy with a season at the strip. Or keep it at 1000hp and get a new junkyard fresh one after a handfull of events. Id stick one of these turboed to around 600 rwhp in that monte carvo you fellas are building.

    1. William Robinson

      It is supposed to say knock off chinese turbo install and engine dyno. stupid small keyboard and huge fingers.

        1. floating doc

          Oh yeah, that’s a great writeup. One interesting fact: the engine was sold to them as a 5.3, but it turned out to be a 4.8! It made almost 3 HP/cubic inch!

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