Fuel Systems
Created: February 11, 2014
Carburation and Interchanges , What is the correct carburation that you should use on a Mini? Many options can be used, from SU, single, duel, and Weber.
Tuning your WEBER DCOE-Style Carburetor
Created: February 04, 2011
So you have a nifty Weber DCOE or S&K Racing sidedraft carb setup for your vehicle. You're ready to chew gum and kick butt, and you've run out of gum. You bolted on the carb in place of your SUs or Zenith-Stromberg and voila! You have worse gas mileage, and the power gain is slight enough to be psychological.
SU HIF44 & HIF6 Vac pipe take-off
Created: August 17, 2010
SU HIF44 & HIF6 Vac pipe take-off
How to Improve your Mini MPG
Created: May 12, 2008
In today’s’ world of sky high gas prices with no end in sight it is not uncommon for owners to be saying to themselves that it is time to drive the Mini daily to save a little money on fuel cost. When was the last time you checked your gas mileage?
How Colortune Works
Created: May 09, 2008
Understanding the principle by which COLORTUNE works helps in getting the best out of it. That principle is commonly seen in action or paraffin heaters, gas cookers, or anywhere where a fuel is burnt in air to produce heat or energy....
Weber Carburetors Float Level - DGV / DCOE
Created: April 27, 2007
The float level is a critical part of carburetor calibration. Changing the fuel level in the bowl will change the point that the main circuit starts to feed, alter the characteristics of an emulsion tube, and affect drivability and fuel consumption.GENERAL INSTRUCTIONS: Float level, in mm, typically...
Needle codes for SU carbs
Created: May 21, 2005
Here are a selection of needles codes and the vehicle specs that they were used in...
Carburetors: Conversion from Injection to Carburetors
Created: April 15, 2005
In the history of the Mini the drive to keep the product alive and marketable meant the factory decided to modernize the fuel system of the Mini from Carb to Fuel Injection. Thus in 1991 the first FI was installed on the Mini. Know as Single Point Injected or SPI for short, the system also incorporated its first ECU into the car. This version of the Mini was produced until late ’97 when it was changed to the Twin Point injected version (also know as a MPI Mini.
Mini Cooper Air Filter Technology
Created: October 30, 2003
Mini Cooper High Performance Air Filters Facts
Injection - Tuning Update 03.14.03
Created: April 04, 2003
This program of development embarked upon by myself and colleague Mike Barratt (MBE, was instigated by Keith Dodd, owner of Mini Spares center. His instructions were for us to not only sort out something suitable for the already injected cars,
Injection - Tuning up-date Mar. 2003
Created: March 07, 2003
Injection Cars - Tuning up-date
Created: December 26, 2002
And how 'real' are those claims likely to be? Only witnessing such an engine producing such power would be definite confirmation, so then it's down to 'scruples' I guess. How to judge? The company illustrated above claims in it's advert that they are getting this 135bhp and 122lb ft torque from their stage 3, 1380cc, Kent 276 profiled cam, injected engine - not the 286, stage 4 headed detailed above when in the CCC article the figures given for the stage 3, 276 cammed motor is only a claimed 115bhp/100lb ft torque. Some wool-pulling there or what? As this advert has been run like this for many months - I really can't see it as a genuine mis-print!
FUEL SYSTEMS - The History of SU Carbs
Created: December 12, 2002
Strangely enough, it all started way back with William Banks Skinner; one of the owners/directors of the well-known Lilly and Skinner footwear distributors. In April 1872, W B Skinner's wife gave birth to George Herbert Skinner in Ealing, London.
Air filtration - K&N Air cleaner test
Created: September 19, 2001
In improving the over-all breathing capability of the very asthmatic A-series, the air filter set-up gets priority attention. A frequent question is "which is best - element in standard case or cone/pancake type?" To satisfy some folk's desire, I did a test on a small-bore unit.
SU Carburation - Initial Considerations and Manifolds
Created: March 22, 2001
When trying to improve your Mini’s breathing efficiency, carburation and inlet manifolds are open to as much speculation as other ‘performance enhancing’ components. A great deal of which falls into the b*llsh*t category. As is my wont, I’ll try and outline some basic guidelines.
FUEL - Leaded/unleaded fuel and the alternatives.
Created: September 29, 2000
The fuel situation seems to be worsening at a great pace these days. And as is exhibited by the questions that appear on the message board many folk are confused by what they can and can’t do, and what is best to do as far as race engines go. Many have posted (particularly from the States) that nothing need be done - just run on unleaded.
SU CARBS - Dashpot oil.
Created: September 29, 2000
This subject is a regular message-board poser. Many of us have touted our preferences and discoveries whilst playing about over the years. One problem with trying to deal with it on the message board is the sheer volume of information offered and available against the time available to post it.
SU Carbs - Quick reference needle selection
Created: September 08, 2000
Being an oft-voiced question on the message board, I thought I'd share it with you. Since there is already a very good source of starting points/applications for fixed needle carbs, this is for those floundering about in the wilderness that is the biased (swinging) needle example of the breed.
SU Carbs - HIF, a more finely honed instrument.
Created: September 06, 2000
The basic SU design has maintained the same basic format since it's inception. But modern technology continually sweeps its ever-growing arm across all manufactured products and the SU was no exception.
SU CARBURETTORS - How SU Carburetors Work
Created: September 01, 2000
Even though the SU carburetter (carb) is a very basic yet precise instrument, some fundamental understanding on just how it works is needed to be able to deal with common problems and tuning. Following is as basic a description of what's going on that I can manage!
A Basic Guide to Electronic Fuel Injection for Minis
Created: February 16, 2000
If done properly, converting your Mini to EFI can have many benefits. The EFI Engine Control Unit (ECU) can control all aspects of the combustion of the air/fuel ratio under all conditions. For each and every load point throughout the rev range that the engine may experience, the EFI ECU can calculate the optimum timing and delivery of fuel as well as precisely when ignition will take place by supplying spark at exactly the right time in order to maximise power and torque.
Weber & SU Inlet Manifolds
Created: January 30, 2000
Weber and SU Intake manifolds are explained. Recent development has recently encompassed a detailed look at the manifolds available for side draught carbs. The steel inlet manifolds available have long been acclaimed the very best, out-performing all the alloy types by far.
Weber carb information and part no.
Created: January 30, 2000
One of the common problems where sidedraft carbs are involved is the choice of carb size in the first place and choke size in the second. The trick with carb sizing and choke selection is basically one of choosing a size which provides the engine with the airflow it needs without going over the top.