Engine and Turbo

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Sticky: Quick 'how to' replace fuel lines by S-Express Started by S-Express, 29 September 2007, 18:48	199 responses 16,101 views 0 reactions	Last Post by *Greg_S* 3 August 2026, 16:08
Sticky: Walbro 450 Installation - the only fuel pump you need by Rusty Started by Rusty, 23 January 2020, 12:21	46 responses 5,503 views 6 reactions	Last Post by larsaskogstad 27 February 2026, 08:21
Sticky: Motronic Tuners List by andy10v Started by andy10v, 7 February 2012, 21:25	52 responses 5,005 views 1 reaction	Last Post by Obimba 16 November 2025, 08:20
Sticky: S2 3B and ABY and RS2 ADU Boost Leak Testing (Draft) by UrS4boy Started by UrS4boy, 27 February 2013, 02:38	35 responses 8,934 views 0 reactions	Last Post by newsh 1 August 2025, 14:37
Sticky: Oil recommendations and questions here - The Definitive S2 Oil thread by oilman Started by oilman, 12 October 2006, 16:23	552 responses 29,234 views 0 reactions	Last Post by Settari 22 April 2025, 17:17
Sticky: 'How-To': 13-Row Oil cooler 4 sub £70 by re2500 Started by re2500, 15 October 2012, 14:53	98 responses 7,082 views 1 reaction	Last Post by Chris5044 8 July 2024, 16:18
Sticky: Oil pressure sensor - NLA and what to do by S2central.net Started by S2central.net, 10 September 2014, 14:16	31 responses 1,955 views 0 reactions	Last Post by S2_avant 19930325 4 July 2024, 17:01
Sticky: The Definitive S2 Spark Plug Thread by Fat Audi 80 Started by Fat Audi 80, 25 November 2008, 13:42	111 responses 10,339 views 0 reactions	Last Post by sashocos 9 May 2024, 21:40
Sticky: Radiator fan wiring by twoqu Started by twoqu, 19 July 2012, 14:02	10 responses 2,613 views 1 reaction	Last Post by Tom_ 22 February 2024, 07:52
Sticky: AAN & ABY specific differences by Error404 Started by Error404, 1 September 2008, 20:08	43 responses 3,558 views 0 reactions	Last Post by K Simmonds 4 October 2022, 21:24
Sticky: 16 important OIL questions and answers by oilman Started by oilman, 23 January 2008, 10:57	7 responses 1,175 views 1 reaction	Last Post by K Simmonds 21 June 2022, 18:44
Sticky: Removing WGFV for good? Mechanical vs N75 boosting by CHEN Started by CHEN, 30 August 2007, 12:36	69 responses 6,201 views 0 reactions	Last Post by Mr G 15 April 2022, 17:58
Sticky: Potential solutions to why your AAN-powered UrS isn't starting by UrS4boy Started by UrS4boy, 18 October 2012, 00:19	5 responses 1,104 views 0 reactions	Last Post by newsh 6 March 2022, 21:35
Sticky: PIN SWAP i did it, RS4 B7 Coils inside¡ by Rocco Started by Rocco, 20 April 2011, 21:05	139 responses 7,884 views 0 reactions	Last Post by newsh 7 December 2021, 13:05
Sticky: S2 Coolant System Bleeding - how to by Rusty Started by Rusty, 28 August 2010, 15:50	7 responses 2,626 views 0 reactions	Last Post by S2_avant 19930325 8 August 2021, 03:19
Sticky: Best place to buy F5DPOR's by s2driveruk Started by s2driveruk, 16 February 2012, 08:28	120 responses 7,911 views 0 reactions	Last Post by vonbeck 19 June 2021, 22:00
Sticky: ABY Crank locking tool - Part No? by twoqu Started by twoqu, 4 September 2004, 15:31	39 responses 3,196 views 0 reactions	Last Post by MOTORHOOLIGAN 22 February 2021, 16:15
Sticky: OEM Coils - How to Bench Test ? by macspring Started by macspring, 12 February 2015, 00:13	3 responses 432 views 0 reactions	Last Post by UUUdirs2newcastle 12 July 2020, 21:43
Sticky: 3b Cambelt Change parts list by s2driveruk Started by s2driveruk, 20 April 2020, 15:35	4 responses 319 views 0 reactions	Last Post by s2driveruk 21 April 2020, 13:08
Sticky: Stock, stroker or ghetto capacity increase? ( supra 7m gte pistons bmw rods ) by Rusty Started by Rusty, 25 October 2011, 08:42	165 responses 11,649 views 0 reactions	Last Post by ADP 13 January 2020, 22:05
Sticky: ABY Electrical Schematics for touch screens by sjw185 Started by sjw185, 4 November 2015, 02:55	17 responses 998 views 0 reactions	Last Post by Henkjan 19 September 2019, 17:13
Sticky: Fan Override Switch - How to by Rusty Started by Rusty, 18 April 2007, 22:10	11 responses 1,480 views 1 reaction	Last Post by BLAMM0 16 September 2019, 08:55
Sticky: Audi s2 cam chain by mac2226 Started by mac2226, 4 January 2019, 15:03	5 responses 617 views 0 reactions	Last Post by newsh 25 January 2019, 19:27
Sticky: Coil Pack Wiring Harness - OE by Rusty Started by Rusty, 17 November 2011, 18:16	45 responses 3,291 views 0 reactions	Last Post by Michael S2 2 June 2017, 22:13
Sticky: Cam combo what's best? by Jamo Started by Jamo, 18 February 2009, 16:08	117 responses 11,212 views 0 reactions	Last Post by nilo 27 April 2017, 01:33
Sticky: possible cure for the 3B 'spark hop' issue? by a4kquattro Started by a4kquattro, 8 May 2008, 19:13	80 responses 4,191 views 0 reactions	Last Post by karel5000 8 March 2017, 11:03
Sticky: bosch "others" greens injectors by Rocco Started by Rocco, 9 December 2008, 22:40	39 responses 3,601 views 0 reactions	Last Post by Neacail 2 November 2016, 00:59
Sticky: When changing cambelt, may I suggest you also fit new crank pulley by Martynf Started by Martynf, 30 August 2004, 20:22	71 responses 7,076 views 0 reactions	Last Post by quattro-nick 19 August 2016, 15:14
Sticky: After Run Cooling System Fixed by iain1067 Started by iain1067, 4 May 2006, 18:31	52 responses 5,836 views 0 reactions	Last Post by UrS4boy 12 May 2016, 03:06
Sticky: EV14 Fuel adaptor differences by A80Avant Started by A80Avant, 28 July 2011, 10:35	85 responses 2,677 views 0 reactions	Last Post by Audiboys4 8 October 2015, 13:29
Sticky: Garrett turbos on a stroker by PKM by Bram Started by Bram, 8 December 2009, 15:25	26 responses 3,018 views 0 reactions	Last Post by A80Avant 21 September 2015, 17:46
Sticky: PCV deletion / Catchtank installation by avants2turbo Started by avants2turbo, 16 February 2010, 11:14	33 responses 3,776 views 0 reactions	Last Post by krzysztofkabaj 9 May 2015, 18:19
Sticky: 20v Camshaft ( cam ) durations inlet and exhaust by breitling Started by breitling, 18 June 2007, 09:36	26 responses 5,596 views 0 reactions	Last Post by Wizard-of-OD 22 February 2015, 01:40
Sticky: K&N drop in filter vs. stock. Power curves inside by EspenW Started by EspenW, 12 November 2014, 15:47	12 responses 765 views 0 reactions	Last Post by andykingfishers2 13 November 2014, 22:46
Sticky: 7A Exhaust Cam by desmo888 Started by desmo888, 24 December 2003, 12:54	167 responses 20,393 views 0 reactions	Last Post by vbares 1 November 2014, 08:08
Sticky: ABY Timing Belt Renewal by S2central.net Started by S2central.net, 20 December 2007, 15:23	85 responses 8,032 views 0 reactions	Last Post by John. 28 October 2014, 20:51
Sticky: The Dummy's Guide to Direct Ignition & Coil-Packs etc by S2central.net Started by S2central.net, 21 October 2014, 16:53	25 responses 2,065 views 0 reactions	Last Post by S2central.net 27 October 2014, 12:02
Sticky: leaking EV14 O-ring by Avantus Started by Avantus, 7 January 2013, 18:14	18 responses 875 views 0 reactions	Last Post by newsh 10 August 2014, 10:59
Sticky: Virtual Dyno Room by Billman Started by Billman, 4 April 2011, 09:14	134 responses 4,090 views 0 reactions	Last Post by EspenW 17 June 2014, 09:58
Sticky: Cylinder Head Removal by Doug_RS2 Started by Doug_RS2, 16 December 2003, 19:39	125 responses 11,620 views 0 reactions	Last Post by Giacomo 2 June 2014, 20:52
Sticky: Crankcase Ventilation Flow Diagram by Fat Audi 80 Started by Fat Audi 80, 21 March 2011, 20:27	65 responses 6,405 views 0 reactions	Last Post by sidrick 20 May 2014, 18:47
Sticky: 3B Vacuum Tree Diagram, Arrangement of Vacuum Lines by montez Started by montez, 22 December 2010, 15:24	25 responses 2,205 views 0 reactions	Last Post by Boxerfan 11 April 2014, 12:44
Sticky: Definitive Cam Belt Parts List - UPDATED WITH P/N's by S2 Ant Started by S2 Ant, 31 January 2006, 15:43	59 responses 4,424 views 0 reactions	Last Post by darkhorse1210 22 February 2014, 21:46
Sticky: #1 Definitive - Engine Does Not Start by S2central.net Started by S2central.net, 31 January 2011, 21:21	12 responses 3,277 views 0 reactions	Last Post by Silky smooth 14 May 2013, 17:10
Sticky: Main Bearings. by twoqu Started by twoqu, 10 August 2004, 11:35	57 responses 6,565 views 0 reactions	Last Post by Pirvu Eugen 11 March 2013, 14:08
Sticky: Cam Belt too big??? by quicktrick Started by quicktrick, 18 August 2011, 14:10	45 responses 3,376 views 0 reactions	Last Post by terrybullwon 8 February 2013, 10:53
Sticky: Alternatives to OE Hall Senders/Cam Sensors by UrS4boy Started by UrS4boy, 6 July 2006, 19:32	78 responses 5,126 views 0 reactions	Last Post by s2_wot 9 December 2012, 20:03
Sticky: Turbo after run pump switch by s2avant Started by s2avant, 27 June 2004, 15:17	34 responses 4,455 views 0 reactions	Last Post by Trankelstein 14 September 2012, 05:33
Sticky: Fueling FAQ by Thuppu Started by Thuppu, 5 June 2012, 20:22	1 response 428 views 0 reactions	Last Post by AndyP 5 June 2012, 21:45
Sticky: Cam timing confirmation by 20Vcqdriver Started by 20Vcqdriver, 7 January 2012, 21:03	5 responses 846 views 0 reactions	Last Post by UrS4boy 7 January 2012, 23:13
Sticky: Engine oil seals by AndyP Started by AndyP, 19 November 2011, 15:54	9 responses 586 views 0 reactions	Last Post by europeanme 20 November 2011, 19:27
Sticky: S2/RS2 Fuel Pump Testing by S2central.net Started by S2central.net, 12 May 2010, 20:51	15 responses 1,513 views 0 reactions	Last Post by UrS4boy 3 September 2011, 16:36
Sticky: Fuel Pressure Measurement - Sticky by S2central.net Started by S2central.net, 16 July 2011, 13:17	10 responses 1,139 views 0 reactions	Last Post by blackS2 2 August 2011, 10:30
Sticky: Motronic Sensor Signals by S2central.net Started by S2central.net, 19 July 2008, 21:14	17 responses 2,217 views 0 reactions	Last Post by S2central.net 12 July 2011, 14:54
Sticky: How to remove ecu from under dash? by newsh Started by newsh, 4 March 2010, 22:28	16 responses 2,414 views 0 reactions	Last Post by S2central.net 14 June 2011, 22:00
Sticky: Boost Control Essentials by S2central.net Started by S2central.net, 25 November 2008, 22:49	42 responses 4,192 views 0 reactions	Last Post by Tonks4x4 7 April 2011, 22:00
Sticky: Vacuum Trees & PCV/EVAP by S2central.net Started by S2central.net, 17 October 2005, 21:37	19 responses 2,154 views 0 reactions	Last Post by A80Avant 15 March 2011, 19:08
Sticky: RS2 Turbo - Naked! by twoqu Started by twoqu, 29 July 2006, 20:33	108 responses 15,950 views 0 reactions	Last Post by chapel 26 December 2010, 01:11
Sticky: Cams 7A inlet and exhaust RR results by stevieyid Started by stevieyid, 31 July 2005, 22:39	38 responses 5,760 views 0 reactions	Last Post by Ola 18 January 2010, 18:03
Sticky: High flow panel filter for RS2 Airbox? by newsh Started by newsh, 7 October 2006, 19:09	38 responses 1,977 views 0 reactions	Last Post by Rusty 9 December 2009, 09:35
Sticky: Large IC install/pluming by s2_bo Started by s2_bo, 3 February 2007, 17:36	259 responses 20,807 views 0 reactions	Last Post by Billman 14 November 2009, 02:21
Sticky: Paul's ABY Home Fries by Alistair E Started by Alistair E, 19 August 2003, 15:37	216 responses 29,287 views 0 reactions	Last Post by max_s2 23 September 2009, 07:14
Sticky: Definition of "lag" and "spool up" by repo Started by repo, 28 August 2009, 09:14	32 responses 1,615 views 0 reactions	Last Post by Jamo 1 September 2009, 11:05
Sticky: Engine speed sensor advise please by iib3327 Started by iib3327, 26 February 2009, 18:00	28 responses 2,676 views 0 reactions	Last Post by S2central.net 11 March 2009, 09:31
Sticky: waterpump diffrence ABY and ADU ? by inc13 Started by inc13, 25 May 2004, 13:25	40 responses 2,551 views 0 reactions	Last Post by Smith_S2 21 December 2008, 21:45
Sticky: Mastercylinder help in removal + fitting pls by s2bug Started by s2bug, 13 September 2008, 19:48	11 responses 729 views 0 reactions	Last Post by Graham 2 October 2008, 00:20
Sticky: Quick, Easy & Handy Engine modification by S2central.net Started by S2central.net, 30 January 2008, 13:34	13 responses 1,917 views 0 reactions	Last Post by Acidburn 29 August 2008, 15:04
Sticky: ABY Engine Component Finding Information - Help Required by Animal Mother Started by Animal Mother, 20 July 2007, 15:12	19 responses 1,194 views 0 reactions	Last Post by Fat Audi 80 23 April 2008, 11:17
Sticky: Engine balancing in UK by Ross Started by Ross, 19 March 2006, 00:21	16 responses 1,616 views 0 reactions	Last Post by aspro 18 March 2008, 16:34
Sticky: S2 & RS2 Head Gasket Parts & Pricing by S2central.net Started by S2central.net, 29 November 2007, 01:09	1 response 905 views 0 reactions	Last Post by S2central.net 29 November 2007, 01:11
Sticky: How to read a turbo compressor map by Jamo Started by Jamo, 8 August 2007, 19:13	3 responses 1,124 views 0 reactions	Last Post by Flat on my back 9 August 2007, 14:16
Sticky: Con-rods stresses: inertial+combustion forces by Pisobiker Started by Pisobiker, 16 August 2003, 16:23	17 responses 2,096 views 0 reactions	Last Post by Pisobiker 28 August 2003, 21:08
Modified UrS cooling layouts: recording the tank, cap and hose arrangement by TomBolger91 Started by TomBolger91, 12 October 2026, 13:11	2 responses 34 views 0 reactions	Last Post by RedV6 12 October 2026, 17:31
3B Timing Chain question by GurjinderSembhi Started by GurjinderSembhi, 28 February 2021, 21:35	30 responses 1,460 views 0 reactions	Last Post by Alex20v 28 September 2026, 15:43
Changing flywheel on a 10v mc1 by OskarH Started by OskarH, 24 September 2026, 08:01	1 response 50 views 0 reactions	Last Post by K Simmonds 24 September 2026, 09:48
Starting procedure by hunker7 Started by hunker7, 1 November 2025, 16:09	15 responses 409 views 0 reactions	Last Post by hunker7 27 August 2026, 16:30
Help. Lifters pumping up & losing compression (ADU) - Running out of ideas here. by Jeffer Started by Jeffer, 23 July 2026, 14:49	11 responses 318 views 0 reactions	Last Post by GazzaG60 25 August 2026, 17:31
Some kind of cutting issue , aud s2 avant aby,,maxxecu by S2_avant 19930325 Started by S2_avant 19930325, 25 July 2026, 14:33	15 responses 335 views 0 reactions	Last Post by rynaqui 3 August 2026, 15:13
Audi s2 (ABY) oil pressure sensor by NathanBS2 Started by NathanBS2, 21 July 2026, 16:43	10 responses 213 views 0 reactions	Last Post by NathanBS2 26 July 2026, 17:20
Audi S2 ABY Radiator by audisimba Started by audisimba, 7 October 2020, 09:13	36 responses 1,403 views 0 reactions	Last Post by Crasher 17 July 2026, 10:55
Stock RS2 boost pressure too high by Berjamin Started by Berjamin, 28 June 2026, 17:36	11 responses 292 views 0 reactions	Last Post by Berjamin 6 July 2026, 12:03
Help! Should this be plugged into something? by Solfella Started by Solfella, 10 June 2026, 00:46	9 responses 344 views 0 reactions	Last Post by Solfella 24 June 2026, 23:19

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