Jump to content
SAU Community

Malpassi Fuel Pressure Reg

Frosty

By Frosty,
in Engines & Forced Induction

 Share

Recommended Posts

Frosty Grand Master

Frosty

Posted
Posted

Been told and looking for information on the MALPASSI FUEL PRESSURE REGULATORS

basically is anyone using these on turbo cars and what are the results?

my engine builder and tuner have strayed me away and told me not to use it as it stuffs around with your A?F ratios too much (ie. 3 runs on dyno same tune and 3 diff A/F ratios?)

can anyone confirm this and give me info and results if you have used them

Thanks

Link to comment
https://www.sau.com.au/forums/topic/157901-malpassi-fuel-pressure-reg/
Share on other sites
Adriano Grand Master

Adriano

Posted
Posted

Have useed them in the past to get more power out of standard injectors, the pressure has to be setupm as it isnt out of the box. There are three different models, 1:1, 1.7:1 and 2:1. no problems with varience on the dyno. i dont understand why do you need one?

unarmed_skyline Experienced

unarmed_skyline

Posted
Posted

i bought one cause i've just turboed my na and havent upgraded the injectors but a little extra pressure will make them flow a little better as i dont quite need to replace the injectors just yet, putting it on on friday when the car goes on the dyno. ill see how it goes.

unarmed_skyline Experienced

unarmed_skyline

Posted
Posted

i think he was refering the n/a injectors to my post earlier, and i didnt pick up stock injectors cause right now i dont need them for the car, im planning on upgrading the fuel rail 550ish injectors high flowed turbo cams bigger cooler and prob a head gasket in about 6 months and who knows what condish the second hand injectors are in at least i know mine are good and up to the task im asking of them right now

Adriano Grand Master

Adriano

Posted
Posted
i bought one cause i've just turboed my na and havent upgraded the injectors but a little extra pressure will make them flow a little better as i dont quite need to replace the injectors just yet, putting it on on friday when the car goes on the dyno. ill see how it goes.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Therry
      Left & Right Window Regulators for 2013 Skyline V36 Coupe

      By Therry · Posted

      Both windows operate normally while the engine is running but start to sag as soon as I switch off.  Does anyone know of reasonably priced replacements or other brands that will fit?
    • Duncan
      R32gtr sputtering and stalling

      By Duncan · Posted

      Actually PowerFC is probably the easiest to get basic data from, it comes with a hand controller and display so you don't need to remember to pack a laptop every time you drive. It also has a PC based viewing/logging option if required. Nissan used consult on these because back in the mid 80s, ODB was just a glint in a standard's body's eyes.  They switched to OBD shape around 2000 (my 2001 Cima had OBD shaped but not OBD compliant port) With the standard ECU there is a cable and software available to give basic data too, I think it is called Nissan Data Scan or s
    • Kinkstaah
      R34 Gtt Wheel Offset Advice

      By Kinkstaah · Posted

      Given by the sheer number of questions about offset, absolutely not. If you had the information formatted this way: Space from R34 GTT hub to outer arch = 100mm Space from R34 GTT inner hub to nearest suspension arm = 90mm. (making this up) Buying a wheel that was advertised as Enkei RPZ5 Diameter 18in Width 9 Distance to arch = 84mm Distance to suspension arm = 76mm 100% of people would know instantly if it fits. They would absolutely also know instantly how close it fits too, and no questions would need to be asked. You would know you would have 16mm from the guard and 14mm from the suspension arm.
    • silviaz
      R32gtr sputtering and stalling

      By silviaz · Posted

      Ah ok, for example for the apexi ecu I heard that it's pretty limited with the information it can give you. Also not sure why Nissan used the consult port over the obd2, what the idea there was.
    • MBS206
      R32gtr sputtering and stalling

      By MBS206 · Posted

      Diagnosing with and without is mostly the same. You need to know, as Duncan asked, and what conditions. Car hot, cold, idling, driving, if while driving what rpms, is when you're varying, or is it when held constant.   From there it's understanding what can be causing it. Starting with pretending all of the sensors are correct. Which means if it's going rich, why would it be thinking more air is going in than it is, and under what conditions. So things like if only when under boost, it could be be a loose intake piping joint. It's just understanding the system, and understanding when/how the problem occurs, and then if it's only occuring in specific scenarios, what can be causing it.   ECU specifically, if it's aftermarket, it'll have software you can use, for the Skylines on factory ECU, there is Nissan Consult you can use. Most ECUs have a way to get data from them.
×
×
  • Create New...