adjustable fpr what setting?

[91talondsm]

just got a new adjustable fuel pressure regulator with guage and a wepon r adaptor for easy fit. my question is: with my mods what should i set my fpr to at 18psi? i have no afc or datalogger.

[steviek]

one1g turbo 36.5 psi. base fuel pressure

[steviek]

the 1G Turbo FPRs are rated at 36.3psi at zero psi, the 2G Turbo FPRs are rated at 43.6psi at zero psi. What this means is that at idle (assuming a healthy engine with stock cams, which should have roughly 18-20" of vacuum), 1G/2G NT fuel pressure should be around 39psi, the 1G turbos should be around 27psi, and 2G turbos should be around 35pi (because 2" vacuum equals roughly 1psi). On a 1G turbo, you should have roughly 41psi at 5psi boost, and 51psi at 15psi boost

[Black99GST]

Originally Posted by steviek

one1g turbo 36.5 psi. base fuel pressure

Originally Posted by steviek

the 1G Turbo FPRs are rated at 36.3psi at zero psi, the 2G Turbo FPRs are rated at 43.6psi at zero psi. What this means is that at idle (assuming a healthy engine with stock cams, which should have roughly 18-20" of vacuum), 1G/2G NT fuel pressure should be around 39psi, the 1G turbos should be around 27psi, and 2G turbos should be around 35pi (because 2" vacuum equals roughly 1psi). On a 1G turbo, you should have roughly 41psi at 5psi boost, and 51psi at 15psi boost

I.E. pull the vac line from the FPR, and with the car running (and the vac line capped) adjust your FPR untill it reads 36.5psi... then shut down car, and re-attach vac line... DONE!

[91talondsm]

so 36.5 at idle with fpr vac. line capped. thanks guys