1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Mapped s3 running 3bar fuel pressure regulator?

darren t Oct 31, 2012

  1. darren t

    darren t Member

    568
    18
    18
    Hi my car when bought did have a 3 bar fpr on it I changed it too a 4 bar would this throw out the map by much ect as my pull inside car dosent feel as strong anymore??? Could it be this everything else is ok boost ect? Or is it me being use too car now!
     
  2. superkarl

    superkarl MAN OF STEEL

    9,610
    2,481
    113
    yes.
    there is no need whatsoever to put a 4bar on. it will do nothing but screw with your fueling
     
  3. Broken Byzan

    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User quattro Audi A4

    13,237
    466
    83
    It's supposed to have a 3 bar FPR on it. If it was mapped for a 3bar and you stuffed a 4 bar on, all that will happen is the ECU will attepmt to pull the added 15% fuel back out to make it back to where it should be. If it's not right, i'd suggest it's probably struggling to remove the fuel added by stuffing the 4 bar.

    Remove it and put the 3 bar FPR back in
     
  4. badger5

    badger5 www.badger5.co.uk Site Sponsor

    9,600
    2,060
    113
    why why why why why why did you think this was a good idea?
    you have now added 15% more fuel than it wants.....

    put 3bar back on dude
    Pointless just chucking more fuel in.........
     
  5. Welly

    Welly VX220 SC Driver :)

    10,696
    130
    38
    A very good question....
     
  6. darren t

    darren t Member

    568
    18
    18
    I did this as my engine bay seemed very hot lol and I did bend a rod so thought my map was running lean and could keep temps down a bit I have had several problems ect all sorted now touch wood and just don't seem too have that kick it had!! Look forward too seeing what your rollers say on my car had 10 runs on midland vows rollers with let's say embarrassing results!!
     
  7. Welly

    Welly VX220 SC Driver :)

    10,696
    130
    38
    No-one likes those :(
     
  8. darren t

    darren t Member

    568
    18
    18
    Unknown map all I was told is it was running 320bhp pmsl on a hybrid k04 with a standard manifold but turbo was replaced before I bought car by garage I bought from with a standard ko4 turbo I have receipt ! So my guess is map was killing engine thinking it had a hybrid ko4 on I have since forged engine and put a hybrid ko4 back on!
     
  9. darren t

    darren t Member

    568
    18
    18
    And doesn't fell like it did with a standard k04!!! Thought it would be a big kick of power at 3000 rpm??? My boost. Isn't meeting requested since I've had it back from engine shop compression back I did wind actuator off too wear in new rings adjusted now but can't get it too reach 1.7bar ??? Cantons hold only holding at 1.3 spikes at 1.5 ??? Map wants more so I've adjusted actuator half a turn no difference leak??? Does hold the 1.3bar??? And was holding 1.7 on same turbo with low compression??
     
  10. Prawn

    Prawn My other car is a MINI!!!!

    11,667
    3,667
    113
    1.7 bar is HUGE boost mate. No map should be asking for that much.

    I'm sure there will be a clear picture on Sunday after the RR runs :)
     
  11. darren t

    darren t Member

    568
    18
    18
    What requested boost would vag .com be asking for ie what's 2550 mbar=psi?
     
  12. darren t

    darren t Member

    568
    18
    18
    As midland vow did say my gauge was well off?
     
  13. darren t

    darren t Member

    568
    18
    18
    Prawn does your car be
    at s3 s for fun I rebuilt my old one no map put boost controller on and it was fast with a k03s running 195 bhp before map my mate had it got a proper map on last week made 215bhp at midland vw with 255lb blew up yesterday pmsl wanted too race him 2wd is defiantly more fun!
     
  14. superkarl

    superkarl MAN OF STEEL

    9,610
    2,481
    113
    thats the max the map sensor can read. 1.5bar
     
  15. Prawn

    Prawn My other car is a MINI!!!!

    11,667
    3,667
    113
    2550 is the most the MAP sensor can read, minus ~1000mb for atmospheric pressure it's 1.55 bar which is 22.8 psi :)

    Yes, all of them :laugh:

    To give you an idea, on my conservative 300bhp map, due to the low weight, a road going S3 would need 395bhp to match it's power:weight ratio.

    It's nippy enough :)
     
  16. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow... Staff Member Moderator Audi S3

    21,874
    4,201
    113
    :eyebrows:

    <tuffty/>
     
  17. s3dave

    s3dave TFSI Hybrid Supporter

    10,110
    736
    38
    [​IMG]


    :bye:..........:haha:
     
    S3_OL, badger5 and Yohan87 like this.
  18. Prawn

    Prawn My other car is a MINI!!!!

    11,667
    3,667
    113
    Yes PT, we all know you've got 413bhp and would muller just about anything short of the Badgerwagon itself! :laugh:

    Let me have my moment at least. haha.
     
  19. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow... Staff Member Moderator Audi S3

    21,874
    4,201
    113
    Probably nearer 420/430hp now the boost is fixed... although with a flat battery, a borrowed MAF sensor and no MOT you stand a chance currently :D

    <tuffty/>
     
  20. badger5

    badger5 www.badger5.co.uk Site Sponsor

    9,600
    2,060
    113
    and a certain little lupo
     
  21. Reesy

    Reesy Well-Known Member VCDS Map User

    3,640
    148
    63
    Quoted For Truth.
     
  22. burns3

    burns3 Member

    224
    17
    18
    And a certain yellow and black one that's just moved up north ;)
     
  23. Prawn

    Prawn My other car is a MINI!!!!

    11,667
    3,667
    113
    haha, is the Lupo actually quicker than Pauls S3 then? I've still not been in the infamous lupo of glory yet!
     
  24. badger5

    badger5 www.badger5.co.uk Site Sponsor

    9,600
    2,060
    113
    he he

    ;)
     

Share This Page