anyone know why my motor has no blow off valve and 2 FPR's?

[atticus]

Its true I have a RB20 out of a laurel and it obviously donsent have a blow off valve cause, it dosent even have the spot for one on the intake pipe.

It also has 2 fuel pressure regulators on both ends of the fuel rail.. what up with that homie!?

anyway im replacing the turbo and getting a fuel rail and putting a BOV on so it really dosent matter, but i thought it was strange.

[atticus]

I wonder how low the stock boost was on this POS

[yellow_jacket]

Got any pics?

[Joe]

one of those FPR's is probably a fuel dampner to absorb pulses from the fuel pump.

as for no blow off valve, ill have to see pictures too.

[Nameless EJ6]

I remember reading something about certain RB20's not having them.. must have been the laurel's. Very controversial subject on the aussie skyline forums..

[themadscientist]

Laurel and Cefiro RB20s did not have BOVs, the twin fuel pressure regulator is a kouki/zenki thing, early/late model. I have been told that the Skyline Type-M RB20 is supposed to be more powerful but I have yet to find solid evidence for that, in documentation or street use.

[goofynick6]

One is a fuel dampener, the other a real FPR.

THe Cefiro has better duration cams, as in 240/240 instead of 232/232. I believe I have a Cefiro as the car was previously automatic, and had a Cefiro ecu and maf. Don't know if there are markings on the cams, but I'd be happy to pull off a valve cover again to check.

Nick

[foCk]

I have been told that the Skyline Type-M RB20 is supposed to be more powerful but I have yet to find solid evidence for that, in documentation or street use.

its because of the skyline having a more free flowing exhaust system and ecu tuning is different

[Sil240]

but why would they put longer duration cams in the laurel and cefiro?