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  1. 12-02-2016
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Forum: V8 Engine Tech

Technical discussion on all aspects of VAG 4.2 and 5.2 V8 tuning and tech. Sponsored by JH Motorsports.

JH Motorsports
  1. Help with persistent misfires

    Started by drexer13, 11-05-2016 08:49 PM
    • Replies: 2
    • Views: 328
    12-07-2016, 10:47 PM Go to last post
    • Replies: 2
    • Views: 149
    12-07-2016, 10:45 PM Go to last post
  2. Rough start

    Started by bigwilly1267, 10-29-2016 02:27 PM
    • Replies: 1
    • Views: 249
    12-07-2016, 10:44 PM Go to last post
  3. Power loss..

    Started by jrow26, 11-16-2016 06:27 PM
    • Replies: 18
    • Views: 808
    12-06-2016, 08:35 AM Go to last post
  4. Question BNS engine crankcase pressure - what shoul it be?

    Started by ven0m, 05-06-2016 02:08 AM
    • Replies: 3
    • Views: 573
    11-30-2016, 03:02 PM Go to last post
  5. Engine Compatibility by VIN?

    Started by Dagear, 11-24-2016 08:14 PM
    • Replies: 0
    • Views: 1,788
    11-24-2016, 08:14 PM Go to last post
  6. Lean condition

    Started by bigwilly1267, 11-12-2016 02:01 PM
    • Replies: 4
    • Views: 327
    11-22-2016, 11:59 AM Go to last post
  7. B7 s4 loss of power and misfires

    Started by jrow26, 11-12-2016 09:16 AM
    • Replies: 8
    • Views: 417
    11-14-2016, 06:50 PM Go to last post
  8. How to best refresh a 4.2L

    Started by swamper8, 11-14-2016 10:27 AM
    • Replies: 0
    • Views: 207
    11-14-2016, 10:27 AM Go to last post
  9. Timing advance after rebuild

    Started by Wyd, 11-09-2016 05:37 PM
    • Replies: 0
    • Views: 198
    11-09-2016, 05:37 PM Go to last post
  10. Where does this vacuum line connect?

    Started by Epetes, 11-09-2016 09:26 AM
    • Replies: 1
    • Views: 193
    11-09-2016, 11:36 AM Go to last post
    • Replies: 2
    • Views: 793
    10-24-2016, 07:01 PM Go to last post
  11. Question Oil check valve maintenance/ Torque specs/ diy

    Started by Wyd, 06-30-2016 01:35 PM
    diy, oil check valve, oil pressure, rattle, torque spec
    • Replies: 1
    • Views: 474
    10-24-2016, 06:58 PM Go to last post
    • Replies: 3
    • Views: 474
    10-10-2016, 06:57 PM Go to last post
    • Replies: 1
    • Views: 340
    09-21-2016, 09:08 AM Go to last post
  12. Rs4 b7 2007 holding back

    Started by Mark123, 08-13-2016 03:13 PM
    • Replies: 7
    • Views: 652
    09-14-2016, 02:10 PM Go to last post
  13. Ceramic engine treatment

    Started by Mame's A4, 09-11-2016 08:02 PM
    • Replies: 0
    • Views: 288
    09-11-2016, 08:02 PM Go to last post
  14. Exhaust Question

    Started by f0reignfeatures, 09-09-2016 03:33 PM
    • Replies: 0
    • Views: 330
    09-09-2016, 03:33 PM Go to last post
  15. C5 4.2 1999 Auto Steering Rack Replacement

    Started by chedda88, 09-07-2016 03:56 AM
    • Replies: 0
    • Views: 192
    09-07-2016, 03:56 AM Go to last post
  16. Question Fuel pressure what should it be

    Started by mnthny4, 09-04-2016 08:05 AM
    • Replies: 0
    • Views: 264
    09-04-2016, 08:05 AM Go to last post
  17. HELP needed from audi techs or JHM motorsport

    Started by mnthny4, 09-02-2016 11:35 AM
    • Replies: 0
    • Views: 356
    09-02-2016, 11:35 AM Go to last post
    • Replies: 1
    • Views: 473
    08-23-2016, 09:18 AM Go to last post
    • Replies: 0
    • Views: 228
    08-23-2016, 09:11 AM Go to last post
  18. S5 4.2 v8

    Started by Andy KE05SON, 07-01-2016 12:10 PM
    4.2 v8, b8 s5, rs5
    • Replies: 2
    • Views: 713
    08-20-2016, 09:07 AM Go to last post
  19. B7 s4 tipping

    Started by Justinandcat, 08-06-2016 02:15 AM
    b7 s4 tipping
    • Replies: 0
    • Views: 280
    08-06-2016, 02:15 AM Go to last post
  20. Rough idle at cold start

    Started by Koopsdeville, 08-04-2016 07:41 AM
    • Replies: 0
    • Views: 360
    08-04-2016, 07:41 AM Go to last post
  21. Rough idle only w/P0174

    Started by Dolphin_S4, 07-25-2016 08:24 PM
    p0174 b6 roughidle
    • Replies: 2
    • Views: 380
    07-27-2016, 05:28 AM Go to last post
  22. B7 s4 running rich-help

    Started by Koopsdeville, 07-25-2016 12:30 PM
    • Replies: 0
    • Views: 315
    07-25-2016, 12:30 PM Go to last post
  23. Help, Shaking while going 55-65mph problem

    Started by shiv618, 11-25-2015 08:04 PM
    • Replies: 5
    • Views: 870
    07-22-2016, 03:54 PM Go to last post
  24. Resealing C5 S6 intake manifold

    Started by pee quu, 07-13-2016 10:25 AM
    • Replies: 0
    • Views: 270
    07-13-2016, 10:25 AM Go to last post
  25. Need help on AC not blowing cold on one side

    Started by dk-2020, 07-08-2016 08:24 PM
    • Replies: 1
    • Views: 365
    07-10-2016, 10:15 AM Go to last post
  26. Question Oil oump/ oil pickup manifold

    Started by Wyd, 07-08-2016 07:42 PM
    diy, oil, oil check valve, oil pressure, oil pump
    • Replies: 0
    • Views: 267
    07-08-2016, 07:42 PM Go to last post
  27. New engine

    Started by Videris, 07-07-2016 08:04 PM
    • Replies: 0
    • Views: 487
    07-07-2016, 08:04 PM Go to last post
  28. New gremlin

    Started by JS4Avant, 06-15-2016 01:09 PM
    • Replies: 1
    • Views: 537
    07-05-2016, 02:24 PM Go to last post
  29. Building engine

    Started by s.alradi79, 07-05-2016 03:56 AM
    • Replies: 0
    • Views: 302
    07-05-2016, 03:56 AM Go to last post
  30. Engine Noise - 04 A8L

    Started by a8lchi, 06-23-2016 06:35 PM
    • Replies: 1
    • Views: 380
    07-03-2016, 10:46 PM Go to last post
  31. Need assistance with a strange engine miss

    Started by tjtbelmont, 12-17-2015 01:08 PM
    • Replies: 1
    • Views: 500
    07-03-2016, 10:30 PM Go to last post
  32. D2 s8 4.2 ays

    Started by screwFACE65, 07-02-2016 09:00 PM
    • Replies: 0
    • Views: 276
    07-02-2016, 09:00 PM Go to last post
  33. HELP! Misfire codes and performance loss!

    Started by S4_OUTTY, 08-25-2014 06:36 PM
    • Replies: 9
    • Views: 2,060
    07-01-2016, 08:02 AM Go to last post

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