sd075 Posted April 8, 2013 Share Posted April 8, 2013 Hi, Can someone explain to me what the difference is between an adjustable Fuel Pressure Regulator and a Rising Rate Fuel Pressure Regulator. I currently have an adj. FPR installed and I will most likely have my AEM wideband setup installed soon so I can set the boost pressure higher with a good A/F ratio. Just curious to what the difference is and what FPR will be best to have a good A/F ratio troughout the whole RPM range @higher boost (0.9bar, ct9) Thanks,Jurr Quote Link to post Share on other sites
TrisK Posted April 8, 2013 Share Posted April 8, 2013 A normal fpr has a fixed rateA rrfpr rate of flow raises as manifold pressure increases Quote Link to post Share on other sites
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