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replacement fuel pressure regulator, what should i get??

NZM.031

By NZM.031,
in General Maintenance

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NZM.031 Grand Master

NZM.031

Posted
Posted

hey guys,

my 33 had a malpassi pressure regulator on it which i just discovered isnt working properly, any ideas on what i should get to replace it??

ive heard sard ones are good, but dont see many ppl using aftermarket pressure reg's. i dont have the standard one so i cant put it back on.

the car has an external bosch pump aswell as stock pump in the tank.

cheers

Linton

2BNVS Veteran

2BNVS

Posted
Posted

ive had no problems at all with my malpassi one and about a handlefull of my mates are using them aswell... u can get sard ones from nengun, i was thinkin bout that but i got a good discount from a guy i know at revolution race when i bought my 044 pump so i took that... maybe the reg was for non turbo cars, ive heard someone bought the wrong one before..

ben...

Bobjones Mentor

Bobjones

Posted
Posted

OK, I have read so much on regs its starting to annoy me...

Firstly, I have used Malpassi regs for years, on drag engines, rotors and of course my line. the current reason I am using on the line is that the Nissan one was doing some funkey monkey things.

You need to get the 384 model of rising rate fuel reg for the skyline. The 384 HV is black on top and is 1:2 which you do NOT need. The 384 has a large rubber middle section and silver all over.

I am yet to have one of these fail. I will remind you that all regulators will be affected by temparature, some more so than others. Also get a guage I cannot stress that enough. I currently do not have one as I broke it, however while here in the states I am getting a Auto Meter one to replace it.

Like anything on a car you need to check it and install it correctly. The ONLY time I have seen a regulator fail, and it was an SX one was the SHIT install...

SX regs are good, however you have to remember that a regulator is merely that, a regulator and do you really need better one if your engine is midly tuned. You should be looking at surge tanks, fuel pumps, lines and injectors BEFORE a regulator. All the regulator will do is try and squeeze more juice through the injectors, thus placing additional strain on the fuel lines and injectors what not at a high duty cycle.

Hope that helps...

NZM.031 Grand Master

NZM.031

Posted
  • Author
Posted

yeh, its silver all over, but it doesnt seem to be working, it was working when i got it, then it played up, i disconnected the vacuum to it and the problem went away. i dont think i need an a/m reg. but i dont have the stocker, so i mayswell get something to replace it, the engine is fairly standard, massive bosch fuel pump and swirl pot in boot, with std injectors and ecu.

cheers

Linton

The Dan Grand Master

The Dan

Posted
Posted

My malpassi failed and I had to send it back to Melbourne. I still use it as it has been the best reg outta all the ones I have used. I have one on the rotor also which has never failed in 5 years.

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