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History/Spirit Racing

History of Spirit Racing
Donington July 2023
Darley Moor July 2023
Cadwell BHR May 2023
Mallory Park April 2023
Darley Moor August 2022
Festival of 1000 Bikes
Brands Hatch 7-8th May 2022
Spirit Racing 2022
Spirit Racing 2021
Spirit Racing 2020
Cadwell September 2019
3 Sisters August 2019
MRC Track Day July 2019
Spirit Racing 2019
Spirit Racing 2018
Spirit Racing 2017
Spirit Racing 2016
Spirit Racing 2014
Spirit Racing 2013
Spirit Racing 2012
Spirit Racing 2011
Spirit Racing 2010
Spirit Racing 2009

Spirit Racing 2019

Last year saw one great achievement; the construction of a shed to house a rolling road dyno, and installation of said device. Admittedly, it does not give any sort of reliable readout, but that will be worked on, and meanwhile it is at least useful for checking engines under load without going to a race track. Now I just have to find the time and energy to go racing, with the first decision being to get some bikes working properly before entering any meetings. The exception was Thunderfest in May, an opportunity to try some bikes out to see what needs sorting.

We took three bikes along; the Cub, the Daytona and the 500 Morini, now fitted with an engine borrowed from Paul Compton. This should in fact be faster than the previous engine, having gas flowed heads to suit the racing cams, and hopefully will hold together better too. It does need a piston running in, however, as well as general fettling. We got it sounding and feeling about right the day before Thunderfest.

In the event, the Morini refused to run on both cylinders, which eventually turned out to be muck in one carb (the other being completely clean despite being fed via the same fuel lines, very odd) and the Daytona, used in the morning practice, was going quite well but holding back at times. The Cub was used to set the target time, as planned, as I wanted to see if its new later-type oil pump would keep the piston happier, given its recent history of seizing on Darley Moor's main straight. The piston seemed happy enough, with the bike revving freely, but the bike followed the Daytona's example of jumping out of third gear. Not being able to rev hard in third meant being in top gear too early with resultant sluggish acceleration on the straight and consequent low top speed. Still, some fun was had catching up on the bends and I decided to use the Cub again in the final part of the event, trying to match my earlier time, which I signally failed to do. As a test day, however, it had been quite useful and informative.

Frank, the event organiser, always reminds us not to fall off and hold up the proceedings. The final session was stopped early as he fell off and broke his bike, which was hard to move out of the way with the front end no longer attached.
At the time of writing, the Cub's gearbox has been given some attention and a run up on the dyno yesterday indicated that the problem has been solved. Next month we have the Morini Club's track day at Cadwell Park, when we will see if the Cub and Morini are going well enough for a bit of proper racing later in the year. The Daytona is being put back in road mode so that it can be fettled at leisure. Can it be persuaded to give up its expensive habit of eating alternator stators?


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