Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum - View Profile: BigAlDJ

BigAlDJ BigAlDJ is offline

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  Visitor Messages

Showing Visitor Messages 1 to 3 of 3
  1. mrosati1
    03-21-2011 08:21 PM - permalink
    mrosati1
    how do i post a question?
  2. BigAlDJ
    07-03-2010 12:06 PM - permalink
    BigAlDJ
    According to the K&N website (showed before and after gains of their intake) a 2003 Mazda 6 V6 3.0 litre stock is 160 hp at the wheels.
    According to Crossbow's Thread exhaust technology sizing velocity: a single 2.5" mandrel bent system and/or dual 2.0" works best with the 3.0.
    A larger pipe would immediately absorb all the exhaust volume and drop velocity to the extent that scavenging doesn't occur causing it to be inefficient. Proper piping causes hi velocity so that it creates a suction effect at the cylinder head and sucks the exhaust out of the cylinder. This makes it easier for the piston to move up easier. Modifying the Cat Back will provide little or no gain because of the restriction further upstream (Y-Pipe or rear cat). Some Cat Backs are actually reducing overall power because with the bigger piping exhaust velocity is slowed down.
  3. brake
    07-03-2010 11:09 AM - permalink
    brake
    what were the dyno numbers before the mods?

  About Me

  • About BigAlDJ
    Biography
    DJ & NASCAR
    Location
    Ontario
    Interests
    Fiddle with cars

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  • Join Date: 07-01-2010
  • Referrals: 0

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06-04-2017
08:29 AM - mcfast quoted BigAlDJ in post How to post pictures
When posting pictures in ans...
11-12-2013
03:30 PM - that1guy quoted BigAlDJ in post BIG AL DJ's Mazda 6 3.0 Automatic DYNO Video
THIS IS FOR THOSE THAT ARE T...

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