Technical Guides

Aluminium Chassis

The subject of Aluminium and its Alloys is quite complex and a correctly designed chassis with the correct alloy selection and proven welds may well be feasible but I am convinced that this concept would be beyond the scope of the average amateur in a "shed " environment.

Avon Tyre information

Avon Tyres have generously put together this document with tips on tyre pressures and temperatures and information about Avon tyres specifically for Caterham Sevens

Bolt List

List of bolt sizes and torques for various Caterham chassis

Building a Seven? - An action that should be prioritised before building up the engine bay.

Torque loading the front suspension upper & lower wishbone attachments.

Bump Steer

A description of what bump steer is and how to reduce it

Chapter and verse on Avon ACB10s

 

Which way round do I fit my Avon ACB10s ?

In short the Avon Racing authorised version states:

Cosworth Engines

In the begining the world was created and God saw that it was good. Then he invented motorsports and it was OK.

Coventry Climax Engine

Climax, an engine to be proud of

De-Dion or IRS

Many years ago, when it became apparent that the supply of new Ital axles would dry up, Caterham Cars were looking for alternatives. The development of the de Dion rear end was undertaken by Clive Roberts and Reg Price.

Detailed information on K-series EU2 Engine Loom

A little while ago I redrafted the Caterham K Series EU3 Wiring Diagram. Recently I have been involved with helping a number of people with EU2 engine wiring issues and have discovered several problems with the published K Series EU2 Wiring Diagram, some of which were common to the work I did on the EU3 loom.

Detailed information on K-series EU3 Engine Loom

This article was written by Andrew Revill

K Series EU3 Engine Loom Wiring Diagram - Updated/Corrected

Having recently built a spare K-Series engine I had need to make an engine wiring loom from scratch. Working from the published Caterham K Series EU3 Wiring Diagram I found several problems:

Disconnecting the battery

When disconnecting the battery before commencing work on the car, you should disconnect the negative, black lead first, here's why:

Dry sump systems

Do I need a Dry Sump for road use only ?

Generally No. A dry sump system is of value mainly if you are expecting to experience very high cornering, braking or acceleration forces such as are encountered during sprints/hillclimbs, racing or track days.

Electrics

GENERAL PROBLEMS

The answer to most electrical problems is to start by checking the earths in the car. The battery is usually connected to the engine by an earthing strap and the engine is separately connected to the car chassis by a further strap.

Fuel Pump Diagnostics using an Oscilloscope

Whilst trying to track down a fuel pressure issue on my 1.8K Series VVC, I came across some interesting techniques you can use to diagnose the health of a fuel injection pump in situ with an oscilloscope.

Gearbox oil filler / dipstick modification

This a DIY version of the Quaife Type 9 top cover that I first saw on Guy Lowe's gearbox.  It makes it much easier to check and top up the gearbox oil level.

HANS devices

If you are considering using a Head And Neck Support head restraint when racing next year, there are a few things to watch out for. Below is some help from Andrew Smith, and a press release from Caterham Cars.

Hardware

A broad summary of all the available chassis/body types and various options that could be selected.