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Old 10-21-2010, 10:43 AM   #1
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Default Chinacharger vs. Chinacharger ?

I have two Chinachargers (.60/.64 a/r) comp.42.8-60 ( comp.trim.51) turbine 46.3-53 trim 79 ) the other (.42/.49 a/r) comp. 42.8-60 (comp trim.51) turbine 46.2-53 trim 76) The .60/.64 makes 12psi @ 4,200 rpm........... Heres what I would like to do (maybe) Because both turbos have the same size comp. & turbines if I was to put the .60 compressor housing on the .49 exhaust housing making it a .60/.49
would this effect intake air charge temps ? I know I would loose some top end but that might be a trade off I could live with in order to bring on boost sooner. (My old turbo was a .48/.49 Garrett so I got spoiled by early boost.)

Last edited by elderc; 10-21-2010 at 11:49 AM.
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Old 10-21-2010, 10:52 AM   #2
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when you say .60 compressor. do you mean .60 a/r compressor housing or .60 trim compressor wheel?
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Old 10-21-2010, 11:42 AM   #3
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.60 a/r compressor housing compressor wheel trim is 51 (sorry for not making that clear)...... Both turbos share the same size inducer and exducer. The real question is would matching the .60 a/r compressor housing with the .49 a/r exhaust housing effect air charge temps or is this configeration just a dumb idea all together ?

Last edited by elderc; 10-21-2010 at 12:01 PM.
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Old 10-21-2010, 12:15 PM   #4
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it'll probably have nil effect on anything. compressor a/rs have little effect. if anything you want a smaller number a/r for high boost and higher number a/r for low boost
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Old 10-21-2010, 12:23 PM   #5
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Sounds good so matching the .60 a/r compressor with the .49 turbine housing will just spool sooner my boost levels should remain the same as well as intake temps......Thanks
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