Scavenging is for increasing the VE of N/A engines...

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Scavenging is for increasing the VE of N/A engines... Posted by Jonathan Scupin [Email]

(#428)

[Profile/Gallery] (more from Jonathan Scupin) on Thu, 1 Feb 2007 20:02:39

In Reply to: Velocity and Scavenging...myth?, Chad, Wed, 31 Jan 2007 06:41:03 Members do not see ads below this line. - Help Keep This Site Online - Signup

According to Mark Warner in "Street Turbocharging" (July 2006),

"In contrast (to N/A exh systems), any scavenging in a turbocharged exhaust manifold is of secondary importance. In fact, scavenging is almost nonexistent in the design of most high performance turbo manifolds. The most important thing is to get the turbo spooling as soon and with as little backpressure as possible. On a turbocharged engine, it is much more important to create boost efficiently and quickly than it is to scavenge cylinders."

I have no idea why Aerohead apparently experienced something to the contrary!

Posts in this Thread:

Performance with muffler/ without!!!!!!!, Aerohead , Tue, 30 Jan 2007 14:34:02
- Re: Performance with muffler/ without revealed..., matsuda, Thu, 8 Feb 2007 17:08:15
- Re: Performance with muffler/ without!!!!!!!, SWEDISH DYNAMICS, Tue, 30 Jan 2007 15:37:32
  - Velocity and Scavenging...myth?, Chad, Wed, 31 Jan 2007 06:41:03
    - Scavenging is for increasing the VE of N/A engines..., Jonathan Scupin , Thu, 1 Feb 2007 20:02:39 <-- Viewing This Message
      - Re: Scavenging is for increasing the VE of N/A engines..., Aerohead , Fri, 2 Feb 2007 16:00:05
      - Yea, but the engines are na until the turbo spools!, John Williams , Fri, 2 Feb 2007 12:00:27
        they're really not, TML , Sun, 4 Feb 2007 13:50:18
        Re: Yea, but the engines are na until the turbo spools!, Chad, Fri, 2 Feb 2007 12:27:43
        good point, John!, Jonathan Scupin , Fri, 2 Feb 2007 12:18:40
      - Re: Scavenging is for increasing the VE of N/A engines..., Chad, Fri, 2 Feb 2007 07:23:52
        Re: Scavenging is for increasing the VE of N/A engines., Jonathan Scupin , Fri, 2 Feb 2007 07:44:17
        Re: Scavenging is for increasing the VE of N/A engines., Chad, Fri, 2 Feb 2007 08:43:44
    - Heady stuff, turbocon86, Wed, 31 Jan 2007 08:41:45
      - I cannot fathom how exhaust flow can cause vacuum..., Chaz, Wed, 31 Jan 2007 10:49:52
        Re: I cannot fathom how exhaust flow can cause vacuum..., John Williams , Wed, 31 Jan 2007 11:46:12
        Agreed..., Chad, Wed, 31 Jan 2007 11:53:56
        Re: Agreed..., Aerohead , Wed, 31 Jan 2007 12:36:21
        Re: Agreed..., John Williams , Wed, 31 Jan 2007 12:23:24
        A bit of physics involved, turbocon86, Thu, 1 Feb 2007 13:31:54
        2 Strokes are radically different..., Chaz, Wed, 31 Jan 2007 16:32:21
        Re: 2 Strokes are radically different..., John Williams , Wed, 31 Jan 2007 17:23:55
        Re: 2 Strokes are radically different..., lms, Wed, 31 Jan 2007 16:59:41
        2-stoke tuning, paul o., Wed, 31 Jan 2007 18:35:12
        Re: 2-stoke tuning, John Williams , Wed, 31 Jan 2007 19:47:44
        2-stroke tuning compared to my SPG, dannyboy, Wed, 31 Jan 2007 23:00:40
        Re: 2-stroke tuning, paul o., Thu, 1 Feb 2007 11:19:28
        That is a great diagram!!!, John Williams , Thu, 1 Feb 2007 13:01:29
        Re: 2-stroke tuning compared to my SPG, Chad, Thu, 1 Feb 2007 09:34:54
        Re: 2-stroke tuning compared to my SPG, John Williams , Thu, 1 Feb 2007 10:08:02
        Re: 2-stroke tuning compared to my SPG, John Williams , Thu, 1 Feb 2007 08:53:29

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