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Recent content by mpg99999

  1. mpg99999

    Mototune break in article

    In response to evelrod, he does the website full time now.
  2. mpg99999

    Supercharger vs. Turbocharger

    Turbochargers generally provide better efficiency, especially when compared to roots type superchargers. Mike Kojima did a very good comparison article in SCC. If you can stand reading through some stupid post, then I would check out this thread on another forum...
  3. mpg99999

    Mototune break in article

    Have any of you read the mototune articles on engine break in? I am curious to see what you guys think on the matter. The articles on intake porting is interesting as well. Here are linkes for the break in article: http://www.mototuneusa.com/break_in_secrets.htm and...
  4. mpg99999

    What turbo?

    At 20 psi its not that bad. At 5000 RPM, it will be at 72% efficiency, at 6000 RPM it will be even more efficient. At redline it drops to 60%, which isnt great, but its not horrible. I will be running a Front mount Intercooler. It does look like its a little bit into surge at lower RPM. I...
  5. mpg99999

    What turbo?

    Yeah, at 7500 RPM @20 psi it is on the edge of the compressor map. But, that is still 60%, which isnt to terribly inefficient. Between 5000 and 7000 RPM it does not drop outside of the 72% island at 20 psi. I am pretty sure that this is the turbo I will run. I am gona port the housings and...
  6. mpg99999

    What turbo?

    That actually isnt garretts car. You are correct though, it is called the Disco potato. The turbo was named after the car, both called teh Disco potato, so named because of the cars color. It is in the magazine Sport Compact car. The car is a B15 sentra (not an SE-R, but it has an sr20). It...
  7. mpg99999

    What turbo?

    I am currently researching what turbo to use. The engine is a Nissan SR20DET (It comes stock with a T25, or T28, depending on the car). It is a 4 cylinder 2.0 liter engine (about 122 CI). I assume 90% VE for all my calculations. The engine redlines at 7500 rpms. I want a turbocharger...
  8. mpg99999

    Best liquid for IC sprayer

    So why would a methanol mix work better? What information do I need to look at to figure stuff like this out? Heat of vaporization? -Mike
  9. mpg99999

    Best liquid for IC sprayer

    Yeah, I forgot to ask about the whole flamability thing. I thought of this as well. I am not asking about alcohol or water injection. -Mike
  10. mpg99999

    Best liquid for IC sprayer

    Someone recently told me that they where using ethyl alcohol on a homemade Intercooler sprayer (similar to the NX nitrous sprayer kits, but with water, or in this case, alcohol instead. Same thing that the new subaru wrx sti has). Would ethyl alcohol work better? I know water has a higher...

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