nismo fuel pressure regulator.

[victoriaGTR]

installed one on my car today... came off of a relatively stock car. now my car runs like poo.....any ideas?
cold start the car nearly stalls...hot start car nearly stalls....
idles fine afterwards though.....

[Skym]

What have you set base pressure to???? T in a fuelpressure gauge and note the base pressure at idle.

Not sure what pressure RB26DETT needs to be set at, but for RB20DET it's roughly 35psi at idle.

[victoriaGTR]

will do.

[xcye]

What have you set base pressure to???? T in a fuelpressure gauge and note the base pressure at idle.

Not sure what pressure RB26DETT needs to be set at, but for RB20DET it's roughly 35psi at idle.

The base pressure should be 3 Bars.

[Skym]

The base pressure should be 3 Bars.

3bar x 14.7psi = 44.1psi which might be good for a modified car at idle.

I found out stock base fuelpressure is around 35.5psi for both RB26DETT, RB20DET at idle.

[mcfly]

page 42 of the gtr manual

3kg/cm^2 or 43 psi with engine off
36 psi during idle(depends on vacuum the engine pulls)

[Skym]

This is how I worked it out.

With igniton to 3 on ignition barrel, 3kg/cm2 x 14.2psi = 42.6psi. Or 43psi if you round it up.

At idle 2.5kg/cm2 x 14.2psi = 35.5psi. Or 36psi if you round it up.

[victoriaGTR]

ok i havent checked my pressure yet.... but now it stumbles upon acceleration....
runs and pulls fine once outta 1st gear.... i dunno....

[Joe]

Check you pressure!!!!!!

Also stock injectors? Whats your setup?