Engines

Engines, fueling and tuning

  1. 8-valve

    Section for all 8-valve engines
    Discussions:
    3,994
    Messages:
    37,513
    Latest: Looks like I have my first major job on the GTi - Head Gasket Raglits, Feb 12, 2026 at 2:47 PM

  2. 16-valve

    Section for all things related to 16-valve engines
    Discussions:
    4,951
    Messages:
    61,867
    Latest: 16v KR downpipe removal pigbladder, Jan 27, 2026

  3. 1.8 & 1.8T

    Section for all things related to the 20-valve 4 cyl engine
    Discussions:
    2,793
    Messages:
    26,432
    Latest: 400whp Ca11um43, Feb 11, 2026 at 7:42 PM

  4. VR5, VR6 & Wx

    Section for all things related to the VR6 & V6 engines
    Discussions:
    1,255
    Messages:
    10,926
    Latest: 3.2 Into mk3 Ruan, Feb 7, 2026

  5. FSI (inc. GTI 2.0T)

    Section for all things related to the new breed engines (EA888, EA113, FSI, TSI, TFSI - call them what you will)
    Discussions:
    150
    Messages:
    1,292
    Latest: Mk7 GTI Turbo Problems davidut5, Sep 9, 2025

  6. Diesel

    Section for all things related to diesel engines
    Discussions:
    791
    Messages:
    6,819
    Latest: 1Z 1.9 tdi pump timing issue davidut5, Aug 13, 2025
Page 1 of 1120
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Replies Views
Last Message
  1. A.N. OTHER
    Sticky

    4 cylinder bore & stroke combinations + max bore & stroke list

    A.N. Other, Jan 20, 2011 ... 2 3
    Replies:
    43
    Views:
    53,214
    HPR
    Jun 11, 2020
  2. Toyotec
    Sticky

    Fuel pumps and flow capablity

    Toyotec, Apr 14, 2011
    Replies:
    9
    Views:
    8,366
    Dave
    Jul 3, 2024
  3. davkav
    Sticky

    Idle Stabilisation Valve (ISV) teardown

    davkav, Apr 17, 2018
    Replies:
    10
    Views:
    1,845
    xav
    Oct 9, 2022
  4. VW_SINGH
    Sticky

    Mk1 Golf - Fuel starvation on right hand bends.Analysis and conclusion

    vw_singh, Jun 30, 2009
    Replies:
    15
    Views:
    18,135
    vw_singh
    Jul 3, 2009
  5. rubjonny
    Sticky

    OEM MK4 management wiring => Mk1/2/3 harness install FAQ (Now with added dieselness!)

    rubjonny, Nov 8, 2013 ... 50 51 52
    Replies:
    1,023
    Views:
    519,863
    Racingnight123@
    Jan 24, 2026
  6. Zender Z20
    Sticky

    Oil Pump Refurb...

    Zender Z20, Jan 15, 2024
    Replies:
    2
    Views:
    565
    Sirguydo
    Jan 20, 2024
  7. A.N. OTHER
    Sticky

    Technical Engine Performance Discussions Index

    A.N. Other, Nov 27, 2013
    Replies:
    0
    Views:
    3,478
    A.N. Other
    Nov 27, 2013
  8. A.N. OTHER
    Sticky

    The GTI Engine and its humble origins

    A.N. Other, Sep 28, 2010
    Replies:
    13
    Views:
    13,493
    A.N. Other
    Sep 30, 2010
  9. CRISPY 8V
    Locked Sticky

    VAG COM Users in FAQ

    Crispy 8V, Jun 27, 2006
    Replies:
    0
    Views:
    11,726
    Crispy 8V
    Jun 27, 2006
  10. STU.WILSON

    !!Engine popped!!

    Stu.wilson, Aug 14, 2006 ... 2
    Replies:
    23
    Views:
    1,461
    Stu.wilson
    Aug 17, 2006
  11. STU.WILSON

    !!Help!! engine connector????

    Stu.wilson, Jan 28, 2007
    Replies:
    7
    Views:
    715
    Stu.wilson
    Jan 28, 2007
  12. CDSUTTON9

    !!HELP!! MK3 Golf GTi 16v !!HELP!!

    CDSutton9, Jul 8, 2007
    Replies:
    10
    Views:
    1,087
    Pete Taylor
    Jul 9, 2007
  13. MK2NEWBIE

    !!mk2 20v Help Please!!

    Mk2newbie, Jul 23, 2007
    Replies:
    7
    Views:
    802
    Mk2newbie
    Jul 23, 2007
  14. HARVEY_INC

    !6v Cylinder head rebuild HELP PLEASE

    Harvey_inc, Apr 22, 2006
    Replies:
    4
    Views:
    796
    Harvey_inc
    Apr 23, 2006
  15. DOMMA

    "3A"_"AAD" Comparissons?

    domma, Aug 9, 2005
    Replies:
    6
    Views:
    715
    VR6Will
    Aug 11, 2005
  16. DONO

    "clicking" at cold startup.

    Dono, Oct 30, 2007
    Replies:
    2
    Views:
    627
    Dono
    Nov 1, 2007
  17. SWAYDE

    "Clinking" sound on right turns..

    Swayde, Mar 2, 2005
    Replies:
    10
    Views:
    725
    KeithMac
    Mar 3, 2005
  18. ANDY99

    "Clunk" when i let the clutch up

    Andy99, Mar 2, 2005
    Replies:
    10
    Views:
    741
    Andy99
    Mar 4, 2005
  19. CHRISMC

    "DBilas" Anyone heard of this company??

    chrismc, May 21, 2004
    Replies:
    2
    Views:
    860
    DarrenH
    May 22, 2004
  20. The db

    "Death Rattle" - ooo errr

    The db, Jun 11, 2007
    Replies:
    11
    Views:
    1,031
    The db
    Jun 12, 2007
  21. LOFTY

    "Germany & Denmark" Exhausts any good??

    Lofty, Jun 22, 2004
    Replies:
    6
    Views:
    680
    thegolffather
    Jun 25, 2004
  22. MONZA16V2

    "GTi Engineering" bonnet and tail gate decals?

    monza16v2, Sep 10, 2014
    Replies:
    7
    Views:
    1,021
    Sirguydo
    Sep 29, 2014
  23. DRIFTER

    "Mayonaise" in oil filler cap

    Drifter, Sep 25, 2004
    Replies:
    5
    Views:
    697
    Raider
    Sep 25, 2004
  24. TOO-MANY-JETTAS

    "Plastigauge"...where can I get it?

    too-many-jettas, Dec 29, 2005
    Replies:
    5
    Views:
    752
    TheSecondComing
    Dec 29, 2005
  25. AKIS16V

    "Power Pipe" (?) VW Golf/Jetta/II 16V

    Akis16v, Jan 12, 2006
    Replies:
    18
    Views:
    893
    prof
    Jan 18, 2006
  26. 2GOLFS

    "Thurrock Big Bore" engines

    2golfs, Mar 11, 2004 ... 2
    Replies:
    31
    Views:
    2,582
    Browny
    Mar 17, 2004
  27. steve r

    '04 Polo engine emissions lamp on, cause?

    steve r, May 6, 2007
    Replies:
    2
    Views:
    560
    Supercharged
    May 6, 2007
  28. DUBMAS

    '89mk2 8v, low rev probs

    dubmas, Jan 23, 2008
    Replies:
    8
    Views:
    703
    Mike_H
    Jan 29, 2008
  29. G_SINGH

    '90 golf gti 16v not starting...

    g_singh, Dec 5, 2006
    Replies:
    11
    Views:
    817
    Mike_H
    Dec 9, 2006
Showing threads 1 to 20 of 22,391

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