Durandal Posted August 11, 2009 Share Posted August 11, 2009 Hi, I have a 1993 J-Spec supra and I'm upgrading it to BPU. Will I need to upgarde my 440CC stock injectors to run around 1.1-1.2 bar of boost? Quote Link to comment Share on other sites More sharing options...
T2 MSW Posted August 11, 2009 Share Posted August 11, 2009 (edited) Nope 440's should be fine. Its just the fuel pump u will need to upgrade on the fueling side Edited August 12, 2009 by T2 MSW (see edit history) Quote Link to comment Share on other sites More sharing options...
Homer Posted August 11, 2009 Share Posted August 11, 2009 Click-> bpu Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted August 12, 2009 Share Posted August 12, 2009 Also upgrade spark plugs, get a FCD and DRIVE CAREFULLY as your car will be way more aggressive. Quote Link to comment Share on other sites More sharing options...
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