SU carburetors have been popular since the end of World War II. Although they were used widely before the war, … More
Category: Fuel / Carbs
Day 64 – Fuel & Air
Fuel & air, both critical components in making the car work, and areas I’ve made some more progress on in … More
A spark plug check after a good run out – May 2022
A good indicator how well the engine is running and the general condition of the engine can be seen from … More
MGB / K&N air filter mod
I really want to enjoy the benefits of a K&N air filter but at the same time keep the engine … More
MGB Stainless Steel Fuel Tank Fitted
Job done and tank fitted back under the car. It looks good from under the car and also from the … More
Fuel tank removal
Following on from finding and cleaning a stainless steel fuel tank at …… https://mgb.tips/2020/11/07/stainless-steel-fuel-tank/ The removal of the old fuel … More
Stainless Steel Fuel Tank
Spotted a stainless steel fuel tank for sale on eBay – it looked pretty ropey as it was covered in … More
Octane and Power
It’s a common misconception amongst car enthusiasts that higher octane = more power. False. Its not black and white. The … More
What’s your Poison?
Is alcohol in your fuel going to make your car sick? What’s your Poison?
Weber DGV Carbs on MGs | Bradley Restoration
The Weber DGV was originally designed for a 6-cylinder European Ford. It is quite tuneable and extremely reliable, making it a very popular carb … More
MGB Gas Tanks | Bradley Restoration
Even after years of working on or beloved LBCs, you can still overlook something and get bitten in the rear… … More
Overtightened K&N Filters
Prevent overtightening the K&N filter cover plate – which it’s easily done – can cause the filters to collapse. This … More
Releasing the carbs …. MGB-GT Restoration
Having established at the weekend, with Matt’s help, that the carburettors were blocked, and having consulted the ‘MG helpline’, A.K.A. … More
HS2 HS4 and HS6 Carburetter Dismantling – SU Carburetters
In 1905 Mr. George H. Skinner took out a patent for a carburetter in which both the air and fuel … More
Relocating Fuel Filter #MGB
I recently relocated the fuel filter back to its original position – lying horizontal on the rear bulkhead – having … More
New fuel sender unit for the MGB GT gas tank — 1967 MGB GT
I previously tossed out my 1967 MGB GT gas tank as it had many small pinholes on the top. Attempting … More
HIF Carbs – MGB Register Forum
“Anyone who runs twin SU HiF carbs and finds them tough to tune should have a read of this from … More
Checking fuel mixture on #MGB
Below is an extract from the SU Carburettor Manual downloadable at https://mgb.tips/2019/02/09/downloadable-tuning-su-carbs/ The procedure also applies to HIF carbs as … More
K&N Performance Air Filters
K&N say ……. K&N® washable, reusable High-Flow Air Filters™ feature a state-of-the-art design of layered, oiled cotton media, engineered to … More
Everything you need to know about using E10 fuel with your classic car
It sounds like an additive found in food but from next year E10 will be causing headaches for hundreds of … More
MGB SU Fuel Pump Leak
I recently replaced the fuel pump and although i thought i had tightened the banjo fittings enough there was a … More
#MGB Carb Balancing
I had been running on a pair of early HIF4 carbs – AUD616 to test out the benefits of ported … More
Fuel Pump Test and Replacement
The last few drives i noticed that the engine has started stuttering a bit when accelerating. I had been planning … More
Cleaning the K&N Air Filters on an MGB
The K&N filters came already fitted to my MG so i do not know how old or how many miles … More
Checking Spark Plugs for Mixture
I had a good run in the MG during the week so thought a good time to check the plugs … More
MGB Technical Service Bulletin – Throttle Cable
A useful piece of information but will not apply to all cars. Looks like it was issued in 1973 and … More
E10 petrol and our MGs
E10 petrol and our MGs – MGB Register Forum An interesting post i found in the mgb forum about this … More
#MGB Power Recipes
An excellent book that looks at many different options of power tuning the MGB with results backed up with dynomometer … More
Gunsons Colortune
My old Colortune kit come in handy again to set mixture on the carbs I have recently fitted. Had the … More
Choice of Fuel for the #MGB
Most UK MGBs are standard high compression (HC) engines of 8.8:1. The above book states that fuels below 98 octane … More
K&N Filter mounting mod on my #MGB
When tuning the carbs on the car you are supposed to lift the piston by 1/32″ (0.75mm) using the lifting … More
HIF4 SU Carb Tuning & Servicing Download
For the full document click the link below:- https://documentcloud.adobe.com/link/track?uri=urn%3Aaaid%3Ascds%3AUS%3Ab139272f-fd52-4572-b2fb-aa75cde27f3d Just noticed that item 9 on the pic refers to the … More
MGB Carb Heatshield Insulation Pads Replacement
These insulation pads had long gone missing on my motor and possibly originally were probably asbestos!!! I found some similar … More
Tuning for performance and diagnosing faults with a vacuum gauge
I’ve set the timing on my MGB using the vacuum gauge to great effect but not used it to adjust … More
SU Type HIF Carburetter – Dismantling, Inspection, Assembly and Tuning
I am in the process of stripping down and ‘re building a couple of HIF4 carburettors – AUD616 model which … More
SU Carb Mods for Track Days
An interesting paragraph in the excellent book in the picture about tuning SU carbs for the track. It suggests to … More
SU Needle Comparison Chart
http://www.mintylamb.co.uk/suneedle/ A useful database to compare needles. I used it to check the 3 sets off needles that I have … More
Tuning the SU Carbs – upgrades4mgs
https://www.mginfo.co.uk/upgrades4mgs/Engines/tuning_the_su_carbs.html An excellent article that I am following to modify and tune a spare pair of hif4 carbs I have … More
Modifying SU Carbs
I have a spare pair of SU carbs that I have been considering modifying which this thread from TenTenths Motorsports … More
MGB Fuel Filter Location
During the first year of ownership of my MGB there were 3 instances when the car lost power as if … More
A guide to unleaded additives – Classic Car How To Guides and Articles
An interesting article about the use of unleaded fuel and classic cars. Interestingly Tesco high octane fuel comes out well … More
AUD616 SU MGB HIF4 Carburettors – with vac port.
Won these two rare carbs off eBay. They are the sort that have a vacuum port for the distributor advance … More
HIF4 carbs (AUD 616) as fitted to early rubber bumper MGBs
Parts for AUD 616 for MG M.G.B 1798 cc – SU Carburetters – SU Carburetters This is the carb that … More
SU Carbs Vac pipe take-off
SU Carbs Vac pipe take-off Where is best place to take the distributor vac advance – from the manifold or … More
For anyone who runs twin SU HIF carbs
Anyone who runs twin SU HiF carbs and finds them tough to tune should have a read of this from … More
Checking Fuel Pump Flow
I recently suspected that the fuel pump was not working correctly as there was high speed clicking – guess about … More
Old vs New Octane Ratings
Fuel System & Octane Ratings I have started using the premium fuel since re-timing my engine and finding out it … More
Vacuum Advance Connection HIF 4 – carb or manifold?
Vacuum Advance Connection HIF 4 | MG MGB Technical | MG-Cars.info Quite a debate on the merits of manifold or … More
Classic Car Hub – Guide to setting up and tuning SU carburettors
Classic Car Hub – Articles- Guide to setting up and tuning SU carburettors a short but comprehensive guide on how … More
Alternative ways to balance carbs
Found on the mg-cars.net website now called BBS at https://www.mg-cars.org.uk/ Makes you wonder with the second option just to unscrew … More
Removing twin carbs as one!
An advantage of fitting the K&N filters – apart from the performance gain – is that you can remove the … More
Repositioned MGB fuel filter
As per a previous post i have decided to move the fuel filter into a position that it can be … More
SU carb needle id tag
There are so many different needles available for the SU carbs so just to remind me (and and future owner … More
Which SU needles should I be using?
https://www.mgocspares.co.uk/acatalog/carbneedles.pdf carbneedles.pdf Whilst putting carbs back on the engine thought I would just check which needles were in them. AAA … More
MGB Fuel filter Location Debate
Fuel filter | MG MGB Technical | MG-Cars.net An interesting forum discussion about the use of a fuel filter. Mine … More
Fuel pump pipe air leak
Couple of things that made me suspect an air leakage The fuel filter was usually full of air (or vapour) … More
K&N Air Filters on an MGB
The car came with these fitted – quite expensive for what they are, even used but they are supposed to … More
Downloadable Tuning SU Carbs
Tuning_SU_Carbs.pdf A very informative booklet