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  1. Alchemi

    LPG tune/fuel mixtures in turbo application, any suggestions?

    LPG's knock resistance goes right down with temprature, perhaps some water injection after the turbo??
  2. Alchemi

    need help building a tuned intake for inline six

    I really cant answer that without assembling the motor and getting it dynoed to get the actual VE,CR,charged air temp etc. I havent finalized my cam yet either - another drama unto itself :) Different sized turbos generate diferent amounts of temp on different motors and then an intercooler and...
  3. Alchemi

    need help building a tuned intake for inline six

    Ok, the "dosent work on turbos" info i got was anedocial, so have done a bit of digging and have come up with the following. The runner length theories still work but the speed of sound coefficient needs to be changed due to the increase in air temprature, there is a formula here...
  4. Alchemi

    Turbo Diesel instant boost

    Oh god thats wrong on soooo many levels.... Dumping xtra fuel at the turbo wont make it spin faster, more than likely it will start a fire.... To get the effect you are after, a well set up NOS system that actuates at part trottle and low boost would do the job -not pointed at the exhaust-...
  5. Alchemi

    need help building a tuned intake for inline six

    What your trying to make is called a Helmholtz Resonator, a good read of how this works can be found here http://www.grapeaperacing.com/GrapeApeRacing/tech/inductionsystems.pdf - the short of it is you need very long runners for low peak torque ranges, the tube diameter is very important, the...

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