RB20 turbo is small no worry. if can get RB25 is much better. spool around 3500rpm on 4AGE good for street/track to run under 1bar boost. 4ag is a high rev engine, rb20 turbo is limit to run only 1bar boost to 7500rpm. it pump alot hot air if run over 1bar. hot air = knocking = blew engine. :lol: :lol: :lol:Originally posted by Raymond_Hu@Mar 1 2005, 15:49
just curious, can your 4agze 1.6 able to push a turbine from rb20 2.0 to run?? or may be when the turbo is running, it's already almost the red line zone already?