Jump to content
SAU Community

Help!..car Chokes On High Rpm

miki_R33

By miki_R33,
in R Series (R30, R31, R32, R33, R34)

 Share

Recommended Posts

miki_R33 Rookie

miki_R33

Posted
Posted

after doing some mods(intercooler with piping, dump pipe, air intake, safc II, AVCR) to my car i encountered this problem.....

when the car hits approx 4500 rpms it just starts to choke, loses power...higher the boost more it chokes more power it loses....

first thoughts were that the fuel pump is not pumping enough fuel so that was changed( WALBRO 550hp )spark plugs changed as well, still problem persists........

after that coil packs were checked and tested and are all good.....

anyone experienced anything similar to this please HELP!!!!

dont know what to try next!!! :huh:

Link to comment
https://www.sau.com.au/forums/topic/89251-helpcar-chokes-on-high-rpm/
Share on other sites
miki_R33 Rookie

miki_R33

Posted
  • Author
Posted
Gap your plugs to 0.65-0.7mm if you haven't already. and use BKR6E.

that was done as well, didnt help.....

spit fire coil packs..

yeah, thats what i need, spit fire coil packs....

after few hours of testing again today i think problem was identified....

faulty ignition amplifier.....when it was replaced i got much better results straight away....after that coil packs were tested again one by one...this time they didnt test as good when car was running on high rpms....2 needed to be changed, 4 not in very good condition but they will do for now.......

car is running good now but i dont know for how long so i definatelly need a new set of coil packs and i think spit fire is what i wanna go for....

does anyone know a good place in perth where i could get set of those????

cheers :)

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

    • GTSBoy
      Cas issue

      By GTSBoy · Posted

      The wideband reading is meaningless if it's not running. Why are you using shitty old sidefeeds on any engine, let alone a Neo? What manifold and fuel rail are you using to achieve that? Beyond that, can't help you with AEM stuff as I've never been their ECU/CAS combo.
    • Duncan
      RB26DETT Sketchy boost mod?

      By Duncan · Posted

      Manual boost controllers (where a little of the boost was bled off) were quite common back in the day, because they were cheap and easy. Generally they had a manual adjustment screw rather than being fixed like yours. Down side is they always bleed boost, not just when you want them to so an electronic boost controller that uses a solenoid will have less lag.
    • nash47
      Cas issue

      By nash47 · Posted

      Hello , im new here and i have A31 home build  RB25det neo stock eng / turbo  aem ems 2 blue connector  aem 3.5 map aem cas disk aem wideband connected to ecu  355 lph pump 550 nismo yellow injectors side feed aftermarket regulator  and won’t start with base aem tuner basic tune eventually flipped cas 180 degree so it triggers on correct stroke not in exhaust cycle  Now it won’t start Wideband reads 10 and 11 at lowest fuel setting  and will share calibrations soon for aem tuner i think something is wrong in aem tuner    please if you have any information, am very grateful         
    • nxh
      R34 4 door side skirt identification

      By nxh · Posted

      Legend. I ended up finding the facebook account of the owner of the first car i sent but sadly he deactivated the account. I think you’re right in saying it’s some sort of well done custom job. Really appreciate your help anyways.
    • GTSBoy
      boost source Size Garrett gt28 gen2

      By GTSBoy · Posted

      Totally equivalent. Stock often goes from the comp cover because that's where the actuator is also installed and the factory needs 2" of hose to make the connection - and it comes as a pre-assembled unit. They totally have a boost reference from somewhere between the turbo and the throttle(s). Oh, jeez. Just do it in M12 then. We don't actually care that much. I would expect any such AN converter fitting to rely on an o-ring or some other seal onto a flat surface under the flange of the hex**, because bolt threads are no intended to provide a pressure seal. unlike..... pipe threads. **which also requires a suitably flat and smooth surface on the turbo's boss to provide the seal.
×
×
  • Create New...