Thread: turbo info
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Old Jul 6, 2003 | 08:09 PM
  #20 (permalink)  
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kender
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Thanks to some helpfull critisism and sarcasm I have looked a little deeper into turbo trim and have found out that while the .60 has a greater ability to handle more air flow and thus more hp it takes longer to spool up and really gets into its zone after about 5200 rpm where as the .48 trim spools quicker and the torque in the low end is realized more it can handle air flow at the 7500rpm level its best at and below about 6000 rpm. the hp missing in the .48 is compensated by low end torque( which is seriously lacking in the b16) which will be more applicable to street driving.

Next I found a formula to figure theoretical hp using a turbo, and while there are variables such as vtec, ic efficency, etc the basic is
psi of boost
{---------------------- +1 } x normally aspirated hp
1atmosphere (= 14.7)

using this formula and running it backwards I've figured that at approx 22 psi I'll get approx 450hp. at 15 psi approx 360 hp. pretty f***ing good if the theory holds close to true. this opened my eyes to see that while sleeves that can hol 40psi will not even break a seat at the levels that I've just learned I would like to be at. now for pipe dream 40psi=669 hp on a crx it may fly appart but what a rush. back to reality if anyone thinks this info is off the mark please help me in my learning process.
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