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1938 Harley Davidson Flathead Turbo Bonneville Racer

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Uploaded by on Nov 20, 2009

Dyno Tuning David Pilgrims 1938 Harley Davidson flathead Turbo. Motor
Built by American Cycle Fab.

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Uploader Comments (americancyclefab)

  • Man!! thats just too freakin cool

    thats a ul rigtht?

  • @ndeep45 Yup, it's a UL for sure.Thanks for your interest.

  • OH MY FUCKING GOD. GOOD MUSIC ON YOUTUBE VIDEO FOR ONCE. HOLY SHIT. Is the ice for the intercooler?

  • @magnum9987 Yes, the ice is for the inter cooler. Takes intake air to below ambien air temp. Is only good for about 5 mins. Thanks for your comment.

  • An immense amount of work has been done internally - everything you could imagine to be able to sustain this kind of torque and horsepower. Among other things a special set of turbo cams designed and built by American Cycle Fabrication. This motor pulls 70 horsepower naturally aspirated!

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All Comments (20)

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  • Some men look at porn... I look at old harleys... That is one impressive beautifully crafted machine.  I could see Jesus riding that.

  • Amazing creation!!! I think your cooling fan could do with an up grade though ; )

  • What displacement is that engine? I don't see that anyone mentioned the engine size, just that it's a flathead.

  • god dammit man with turbo

  • These old engines are a lot harder to come across now. Much less a turbocharged 90HP one..

    The flatheads put out around 36HP (correct me if I'm wrong). You guys almost tripled that! (x2.5) awesome.

  • @JacksonMooresExotics You don't know squat about motors do you? That is a 2 cylinder FLATHEAD more than 70 years old stupid.

  • To get 90+ HP from a UL Flatty is sick!! Its not your New Evo or Twincam,This is an antique!!WoW!!!!

  • freakin Hot ! thanks for showing it,

  • @JacksonMooresExotics dude do you know anything about motorcycles and hp?

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