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Does an R2S turbocharger,2 stage turbocharger and twin turbo mean the same

  1. Nov 20, 2012 #1
    does the r2s turbo , a 2 stage turbo and a twin turbo mean the same ...well my idea of a 2 stage turbo is that where compression of air takes place in 2 stages ..so does it consist of 2 compressors?
  2. jcsd
  3. Nov 21, 2012 #2
    There is no standard nomenclature with this.

    2 Stage turbocharging is fairly clear - There are two turbos an LP and a HP (in series). There will be some measure of bypass and control.
    Twin turbo/biturbo can either mean 2 stages of turbo charging (series), or two seperate single stage turbos (parallel).
  4. Nov 21, 2012 #3
    can you elaborate when you say 2 separate 2ingle stage turbos i.e parallel?
  5. Nov 21, 2012 #4
    Say on a V engine. You could have one large turbo feeding both banks, or Two identical turbos, one to feed each bank.
  6. Nov 21, 2012 #5
    A good example of twin single stage turbo engines are BMW diesels. These feature a small turbo which prevents turbo lag at low engine RPM, along with a larger turbo for higher RPM
  7. Nov 23, 2012 #6
  8. Nov 28, 2012 #7
    The R2s is basically a "compound turbo" in a single package where typical compound turbo setups run two separate turbochargers.
  9. Dec 5, 2012 #8
  10. Mar 25, 2013 #9
    Saw one on the LeMans audi testing at the shuttle landing facility two weeks ago.
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