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  1. Methusalah

    Interesting Exhaust Dynamics?

    Hi, it's measured by pito tube
  2. Methusalah

    Interesting Exhaust Dynamics?

    Deffo not measurement errors. Validated several times in different locations along the exaust system.
  3. Methusalah

    Interesting Exhaust Dynamics?

    Hiya Anyone got any views on this? We have a 2.0 ltre supercharged engine producing 0.35 bar of boost pressure. On the dyno we are seeing an exhaust back pressure of 0.5bar before the cat (a blocked cat is suspected), but what is interesting is that the back pressure measured at any point...
  4. Methusalah

    Where can someone find a good resource on twincharging?

    HKS made a Twincharger system for the supercharged Toyota 4AGZ as fitted to the early MR2 and Corolla. It added a Garrett T4 turbocharger to the standard Toyota roots type supercharger, which entailed various relief and bypass valves etc. Sadly it is no longer available.
  5. Methusalah

    Fuel Temperature Compensation

    Hi All, Can anyone guide me with the theory of the effects of fuel line temperature relative to fuel delivery of a/f? Basically does the a/f richen or weaken as the fuel tempature increases? Hope you can help
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