If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Results 1 to 3 of 3

  1. #1

    Join Date
    Mar 2004
    yarram, AUSTRALIA

    muffler presure heat

    os engine tunning does change
    from start of tank to finish
    should we be putting the muffler presure line
    through a heat sink so it dosent heat the fuel in the tank
    the car blokes seem to think it works
    so what about aero

  2. #2

    Join Date
    Mar 2004
    yarram, AUSTRALIA
    ps i do run twin clunks
    the old cl uni flow system
    so it is bubleing in the fuel
    not just blowing over the top
    all ansers welcome bax

  3. #3
    Join Date
    Apr 2002
    Champaign, IL
    My Gallery
    My Models
    My Feedback
    Unless you're running a pump or pressure system that provides consistent pressure to the carburetor, the engine's mixture will change somewhat from when the tank is full to when it's drained. Muffler pressure reduces that effect, but does not eliminate it. Usually, the engine will tend to lean as the fuel level in the tank goes down. That's because there is lower head pressure. Fuel has weight, and the more fuel above the pickup, the more pressure. This can be noticed more if you have a very large fuel tank with respect to the size of the engine. We've don't know of any adverse affects by running muffler pressure right to the fuel tank. Just make your pressure tap in the center to rear of the muffler body, and not hear the header. Adding a way to cool the exhaust before it enters the fuel tank will only add complexity and more points for difficulty.
    Bill Baxter, Manager Hobby Services/Futaba Service/North America
    3002 N. Apollo Dr. Ste. 1 Champaign, IL 61822 USA
    Service Phone: 217 398-0007

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
All times are GMT -6. The time now is 09:59 AM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.