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Tagged Tuning : MG Performance Forum

Performance upgrades and modifications discussion for MGB, MGA, Midget and all other MG models

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Intake Backfire on Supercharged MGB and hard to start, otherwise perfect?. Thoughts? by gavin kidd 2026-02-13 01:12 PM Engine Supercharging Tuning	100	12	Latest post by Bluebuster 7 weeks ago
MGB 1966 Burgess Head only by Philip8794 2025-12-26 10:59 AM Engine Tuning	164	4	Latest post by larrym 2026-01-12 01:38 PM
Another day at the track, another failure. (Pages: 1 2) by Bloose 2025-08-29 12:33 PM Engine Tuning	349	16	Latest post by larrym 2025-12-15 02:13 PM
DIY intercooled supercharger conversion for MGB (Pages: 1 ... 4 5 6) by Yankeedriver 2025-09-15 12:07 PM Engine Supercharging Tuning	798	90	Latest post by Yankeedriver 2025-10-07 01:48 PM
MGB Supercharged, adding 123 Tune+ ignition - Check my homework, theory & questions (Pages: 1 2 3 4) by James Reid 2024-08-06 03:13 PM Engine Supercharging Tuning	1,154	60	Latest post by Bluebuster 2025-09-26 05:45 AM
Looking for recommendations for modding mikuni hsr45 for supercharging a 80 cu in Harley evo by Bigdogbob 2025-09-24 07:27 PM Supercharging Tuning	29	3	Latest post by Bigdogbob 2025-09-25 04:04 PM
[Solved] SU HIF44 => HIF7 Needle transfer by Bluebuster 2025-09-11 11:45 AM Engine Supercharging Tuning	37	1	2025-09-11 11:45 AM
Rocker ratio vs valve position by twentyover 2025-07-22 11:43 AM Tuning	91	4	Latest post by MT-B 2025-07-23 11:53 AM
MG ZR Exhaust by Fraser08 2025-07-22 11:49 AM Tuning	26	1	2025-07-22 11:49 AM
Rocker Pedestal Shims and Pushrods by Blueosprey90 2025-06-19 09:22 AM Engine Tuning	238	15	Latest post by Blueosprey90 2025-07-10 07:36 AM
What’s your 123 Ignition Curve Data ? The Library (Pages: 1 2) by Broadsword 2025-06-08 10:53 AM Tuning	237	18	Latest post by slice 2025-06-23 02:55 PM
Why do I need so much advance.... by chardwicksmith 2025-06-18 08:08 AM Engine Supercharging Tuning	153	8	Latest post by B-racer 2025-06-23 07:24 AM
Valve spring data by patgarity 2025-06-11 04:32 PM Engine Tuning	81	6	Latest post by Speedracer 2025-06-16 06:08 AM
MGB Smog Air Pump as Crankcase evac pump by ltcmgb 2024-05-03 01:14 PM Engine Supercharging Tuning	130	14	Latest post by twentyover 2025-05-08 11:25 PM
How to rise compression in a 12H1326 head by orangemgb 2025-04-17 01:13 PM Engine Tuning	123	5	Latest post by Darvie43 2025-04-18 06:32 PM

1979 MGB Re-Wiring by moltenmechanic 2025-02-26 07:24 AM Engine Lighting Tuning	154	14	Latest post by Jim Blackwood 2025-04-09 07:20 AM
Best AFM Readings by yellowbugeye 2025-03-11 05:24 PM Engine Tuning	190	11	Latest post by crankjournal 2025-03-27 10:09 AM
Intake port divider question by patgarity 2025-03-02 07:11 PM Engine Tuning	215	9	Latest post by crankjournal 2025-03-22 03:46 PM
Radical intake manifold (Pages: 1 2) by patgarity 2025-03-09 07:34 PM Tuning	384	17	Latest post by Sean Brown 2025-03-21 11:23 AM
Specialist Components MGB steel rods & Forged pistons - query? by Dragmini 2025-01-05 04:03 AM Engine Supercharging Tuning Turbo	302	15	Latest post by Gerald O 2025-02-27 03:54 PM
Jet-Hot Coating for '79 Supercharger Build by i AMS 4u 2025-02-16 06:14 PM Engine Supercharging Tuning	68	2	Latest post by Dougie 2025-02-16 11:19 PM
what su carbs would be on 66 mgb by stryper 2025-02-07 03:16 PM Engine Tuning	66	3	Latest post by Endoman 2025-02-08 07:21 AM
Smaller supercharger pulley (Pages: 1 2 3) by willholmania 2020-05-24 06:29 AM Engine Supercharging Tuning	482	35	Latest post by Bluebuster 2025-01-06 04:06 PM
nice footage of MGB engine machining .. by Bluebuster 2024-10-02 02:53 AM Engine Tuning	250	7	Latest post by SolarEvolution 2025-01-06 01:55 AM
Supercharger bypass valve actuating pressure by Bluebuster 2024-10-31 03:43 PM Engine Supercharging Tuning	69	7	Latest post by Bluebuster 2024-11-12 02:05 PM
[Solved] Starting to fast ? by Bluebuster 2024-10-30 01:27 PM Engine Supercharging Tuning	126	9	Latest post by Bluebuster 2024-11-06 03:36 AM
VMAXSCART with 123 Distributor (ISO Curve Map) by mgbracer80 2024-08-17 09:36 AM Supercharging Tuning	145	6	Latest post by Bluebuster 2024-09-05 03:16 AM
MGB PERFORMANCE BUILD 110 HP 1971 MGB (Pages: 1 2 3 4) by proracer 2024-04-25 03:57 PM Engine Tuning	1,844	47	Latest post by colynf 2024-08-25 12:28 PM
Getting my 1960 MGA tuned by MoMil 2024-07-15 09:42 AM Engine Tuning	110	9	Latest post by MoMil 2024-07-19 06:09 AM
MGB "uprated" oil pump drive (Pages: 1 2) by 105octane 2023-12-28 12:41 PM Tuning	511	24	Latest post by cgp 2024-07-14 12:07 PM

Rear Suspension Upgrades for Bugeye by yellowbugeye 2024-06-14 02:15 PM Suspension Tuning	179	11	Latest post by mgb281 2024-06-24 02:55 PM
MGB GT V8 Cold air Intake CAI by Adblackv8 2024-06-09 08:49 AM Engine Transmission Tuning	131	3	Latest post by Adblackv8 2024-06-12 09:04 AM
[Solved] MGB Supercharger SU HIF44 Needle and Seat by Bluebuster 2024-04-19 08:12 AM Engine Supercharging Tuning	60	6	Latest post by Bluebuster 2024-05-28 01:35 AM
Supercharged "77 B Distributor Choice by ltcmgb 2024-04-25 07:15 AM Engine Supercharging Tuning	124	9	Latest post by GeoffDuniam 2024-05-12 07:32 PM
MAF sensor 3 inch pipe Connect by Bluebuster 2024-04-30 11:40 AM Engine Supercharging Tuning	69	4	Latest post by Gerald O 2024-05-01 02:43 PM
Carb and needle selection for supercharging a TD by doobaloo132 2024-04-16 04:42 PM Engine Supercharging Tuning	47	3	Latest post by doobaloo132 2024-04-26 05:30 PM
Air Fuel Ratio Gauge Selection by ltcmgb 2024-04-16 06:25 AM Engine Supercharging Tuning	267	13	Latest post by Speedracer 2024-04-24 06:59 AM
[Solved] MGB ARP head studs lubrication by Bluebuster 2024-04-12 04:07 AM Engine Supercharging Tuning	107	5	Latest post by Bluebuster 2024-04-16 08:03 AM
Upgrading a 5 bearing MGB eng for my Magnette (Pages: 1 2) by Geodon 2022-01-02 03:06 PM Engine Tuning	324	16	Latest post by hoffman900 2024-04-15 09:39 AM
Stage 2 Tune identification by ThatMEGuy 2024-04-10 03:14 PM Engine Tuning	90	5	Latest post by Speedracer 2024-04-11 10:14 AM
Vmaxscart Weber DCOE Clone Float Setting by ltcmgb 2024-03-05 01:53 PM Supercharging Tuning	144	6	Latest post by B-racer 2024-04-10 06:58 PM
66 MGB Roadster - Cylinder head & pistons? by Philip8794 2024-04-03 01:44 AM Engine Tuning	117	8	Latest post by Sean Brown 2024-04-05 09:50 AM
[Solved] 1950 cc boost pressure (Pages: 1 2 3 4) by Bluebuster 2024-02-23 01:07 PM Engine Supercharging Tuning	348	47	Latest post by KenAdkison 2024-03-22 02:11 PM
MGB Supercharged lean shut down by mgbsc72 2024-02-10 06:05 AM Engine Supercharging Tuning	109	15	Latest post by inverse121 2024-02-18 07:38 PM
[Solved] SU HS6 / HIF44 piston vacuum restrictors Moss supercharger (Pages: 1 2) by Bluebuster 2023-10-27 03:02 AM Engine Supercharging Tuning	246	17	Latest post by Bluebuster 2024-01-09 07:42 AM
SAGA of Corrections of my 1979 MGB w/ Moss SC & Many other Repairs by PO (Pages: 1 2) by i AMS 4u 2023-12-24 10:08 AM Brakes Drivetrain Engine Supercharging Tuning	302	16	Latest post by Speedracer 2024-01-07 07:27 PM
67MGB GT what supercharger to use by 1967mgbgt0729 2023-12-22 08:08 PM Engine Fuel Injection Supercharging Transmission Tuning	94	2	Latest post by i AMS 4u 2023-12-23 09:29 AM
sway bar width, left to right by stryper 2023-12-19 09:47 AM Body Suspension Tuning	82	2	Latest post by Bluebuster 2023-12-20 11:34 AM
sway bar downlinks adjustable by stryper 2023-11-17 11:34 AM Suspension Tuning	174	10	Latest post by stryper 2023-11-23 06:10 PM
SU needle stations versus manifold pressure (Pages: 1 2) by Bluebuster 2023-10-25 01:53 AM Engine Supercharging Tuning	236	24	Latest post by Bluebuster 2023-11-10 07:16 AM

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Tagged Tuning : MG Performance Forum

Another day at the track, another failure. (Pages: 1 2)

DIY intercooled supercharger conversion for MGB (Pages: 1 ... 4 5 6)

MGB Supercharged, adding 123 Tune+ ignition - Check my homework, theory & questions (Pages: 1 2 3 4)

What’s your 123 Ignition Curve Data ? The Library (Pages: 1 2)

Radical intake manifold (Pages: 1 2)

Smaller supercharger pulley (Pages: 1 2 3)

MGB PERFORMANCE BUILD 110 HP 1971 MGB (Pages: 1 2 3 4)

MGB "uprated" oil pump drive (Pages: 1 2)

Upgrading a 5 bearing MGB eng for my Magnette (Pages: 1 2)

[Solved] 1950 cc boost pressure (Pages: 1 2 3 4)

[Solved] SU HS6 / HIF44 piston vacuum restrictors Moss supercharger (Pages: 1 2)

SAGA of Corrections of my 1979 MGB w/ Moss SC & Many other Repairs by PO (Pages: 1 2)

SU needle stations versus manifold pressure (Pages: 1 2)