The history of the club cam-shaft by Gary Adnitt
There is no getting away from the fact that when Terry Collier proposed a club cam-shaft for 2cv racing, the shock waves through the club were amazing, so why do it? One reason and one reason alone, to even up the racing and make it fair for everyone, new racer and veteran racer alike.
The story started in 2000 when after a few seasons racing a car we bought from someone else as a going racer, Terry and I decided to rebuild the car, from the ground up and incorporate the things we had learnt from fellow racers into our car, this included going “in house” with our engines.
Whilst Stuart Palmer, Shaun Calvert and I built the car; Terry stripped and built the engines with Alan Cropp, a family friend, but during the stripping something unusual was noticed, all of the twelve cam-shafts we had stripped we compared and found to be different, and I mean no two were the same.
So, as a racer you fit the best one you have in your best engine and off you go, but is that fair? The person with the most cam-shafts (and a way of checking them) has the best opportunity of finding a fast one and potentially the best chance of winning, didn’t seem fair to us. So we set out on a little project…
Terry looked into what a cam-shaft actually does in detail and how we could, along with help from Kent Cams, create a performance cam-shaft for the club with four key objectives:
All of these objectives were achieved, costed and cam-shaft tested back to back with our best engine on testing days then presented to the 2004 AGM.
The cam-shaft was approved and has been run since as the “Club Cam”.
Since the Club Cam has been introduced I have yet to meet someone who can deny that the racing has become a lot closer. Anyone who was a Mallory for the last round of the 2006 season was in for an absolute treat of close racing, aided in no small part by the level playing field the Club Cam was introduced to help create.
Fitting the Club Cam is straight forward for the experienced engine builder, but can also be fitted by a novice racer/engine with the right tools, a Haynes manual and of course plenty of time. Whoever is fitting the cam needs to also consider the following:
It is strongly recommended that anyone fitting a Club Cam should also fit new Valve Springs and Cam Followers.
This is because historically, engine builders using pre-used Valve Springs and Cam Followers have reported failures in these parts when used in conjunction with the Club Cam. Engine builders using new Valve Springs and new Cam Followers have had no issues with parts failures.
It is permitted in our current racing regulations to fit a vernier to your Club Cam. This should only be attempted by an experienced engineer for obvious safety reasons. But why go to the trouble?
When you fit a cam to a crank there is usually a varying degree of slack, this can be dialled out with a vernier, some engine builders also prefer the opportunity to play with advancing or retarding a cam to dial in the best performance of an engine.
Many of the mechanics advertising their services on this website can put you in touch with a company that will vernier a cam for you, once you have one you’ll then need to modify your engine block to allow access to the adjustment part of your vernier so that you can adjust it to your preferred setting whilst in place.
This does not have to be done, you can as many others do, simply fit your Club Cam and go racing the choice is yours.
It’s all too scary, help!
Do not panic. The mechanics advertising their services of this website can do all or part of the Club Cam fitting for you, or simply give you some advise, what ever you want, we’re all here to help.
Club Camshaft Scheme
There are two options for obtaining the 2CV Racing Club Cam:
1) Individually: Send your camshaft to Kent
Performance Cams Limited, who will grind them and return them
2) Batches of 10: Kent Performance Cams Limited will grind batches of ten camshafts at a lower cost per item when sent via the club's appointed representative. Click here for details of how to contact the representative, who will add delivery and collection to the price to the individual members. Again, you will need to provide your membership details for logging. Failure to do this will mean that your camshaft will not be ground.
Please note that you MUST be a FULL MEMBER of the 2CV Racing Club to obtain the Club Camshaft.
Your membership number must be in the following format: the year as four digits (e.g. 2007), followed by a dash and your Race Club membership number as two digits.
Actions by Competitors:
The number of the camshaft MUST be indelibly marked on the crankcase
of the engine in which it is used.
CAM PRO PLUS Cam Card Report - 16/1/04