Turbo pig

8 replies to this topic
  • zimak

Posted March 27, 2008 - 09:50 AM


Anyone seen this before?

Not something I'm interested in doing but would love to see how it turned out.
Hp numbers, dyno. All that good stuff.


  • gottaski

Posted March 27, 2008 - 10:29 PM


wow. i wonder how fast i could crash with that!!! :prof:

  • asf

Posted March 28, 2008 - 06:51 AM



That must bake your thigh!

  • AaronBrown

Posted March 28, 2008 - 06:59 AM


I will be replacing the turbo on my STI with a larger one soon. With the old one I could................aw never mind the XRL would never get it to spool.

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  • loy

Posted March 30, 2008 - 12:59 AM


Here's another swedish turbo-build! Very nice work :prof:

  • Srad600

Posted March 30, 2008 - 01:40 AM


wow, that looks like way too much fun. I'm imagining a turbo 650sm...humm

  • HeadTrauma

Posted March 30, 2008 - 10:43 PM


Anyone seen this before?

It's only been posted every few months for the past seven years.



  • Blacksamwell

Posted March 31, 2008 - 07:08 AM


How are they overcoming the stop-and-go nature of the intake flow on a single cylinder machine? About 3/4 of the time the intake valves are closed leaving no where for the turbo to push the incoming fuel/air mixture.

Back in the day racers would use huge plenums to give the charge somewhere to go but then they had problems with the pressure pushing backwards through the carb jets and leaning out the mixture.

So they moved the carb upstream of the turbo compressor and just pumped those huge plenums full of explosive fuel/air mixture. Backfires were quite an event that often resulted in intakes and carbs being blown right off their manifolds.

So how are these guys overcoming those various turbothumper issues? :prof:

  • HeadTrauma

Posted March 31, 2008 - 09:00 AM


That bikes uses a large plenum also; it's the big thing on the right side that says "turbo" on it.

The fuel doesn't backflow through the carb if you run a fuel pump and pressure regulator. That 650R is using a blowthrough setup which is far more flexible than a drawthrough.

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