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Servicing and Repairs
Tisbury Motors
01747 870258
Your local diagnostic expert
New generation diesels a speciality
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The car that my wife (Dee) and I run is a Datsun 240Z and we run in the modified production Marque sports car
over 2000cc class at Gurston down. The car was the Datsun dealer team race car that ran in the European Group 4/5
Sports car championships in the 70’s and is the only 240Z that was competing then to still be competing today in
this country. It has had a hard life and still bears a few scars of its racing history but is still very
competitive with numerous class wins over the last 12 years in my ownership.
Engine development has been done initially by myself but is now being done by Neil Peters at Pride Race
Engineering.
Have a car that no one else can fix, we specialize in fault diagnoses so call us today for an appointment.
The engine is a straight 6 cylinder 3.1 litre Datsun unit running on slide throttle, multiple injector, fuel
injected induction system with modern distributorless coil on plug ignition run by a programmable ECU. This gives
the engine a very smooth delivery of its strong torque and power. It is under constant development and improvement
by Neil.
The Marque Sports car class has a wonderful array of cars from the past to the present including, Datsun,
Porsche, E type Jaguar, TVR, Scimitar, Lotus, MGB’s, Mazda, Triumph.
Saturday’s meeting was a round of SBD speed championship, and the HSA speed championship and also a round of the
pre war Austin 7 championship with Sunday’s meeting being the first round of the Gates of Brockenhurst sponsored
Gurston championship.
The weather was foul on Saturday with constant drizzle interspersed with rain and bitterly cold gusting
winds.
Our class consisted of a 3.9 ltr MGB driven by 2 drivers, ourselves in the Datsun and a very quick supercharged
Lotus Exige that was returning to the fray after a 2 year rebuild. As a class we are all very good friends and help
each other out if problems arise at a meeting.
Dee took the car out first on a very tentative first practice as we had not been able to get in any pre season
practice. One of the MGB drivers decided (along with a few of the other competitors that it was not worth going out
for the practice due to the weather and track conditions, but we thought that it was important to go out and see
what the conditions were like as we would have to drive in the afternoon.
We were running on normal road tyres instead of the ‘Slick’ racing tyres that we normally run in the dry due to the
wet track. It was unbelievably slippery and hard to get any traction but we got through practice without mishap and
it was looking like a close battle between me and the Lotus for the class honours in the afternoon.
Dee put in a sensible first timed run in the afternoon (she is still finding her confidence following a very big
accident in the car) and bought the car back for me to take my run.
I attacked the hill with usual exuberance and despite the many sideways moments arrived at the top of the course
with a 44 second run which I was very happy with considering the conditions.
I then learned that the Lotus had left the track and found an oak tree to argue with, needless to say the oak tree
won that battle. Apart from a cut hand, seatbelt bruising and shock I am relieved to say that the driver escaped
from a totally destroyed car unscathed, though it was some considerable time before we returned to the paddock to
find this out.
Dee had been at the start line after helping me off on my run and saw the accident happen. It did shake her up
enough to decide that due to the worsening conditions she was not going to take her second run. It was a somewhat
deflated and hollow class win for me but you have to get to the finish line to stand a chance of winning.
Sunday saw a much improved weather situation and drying track and the promise of some sunshine when the fog
burned off. Around 7am I set about preparing the car for the days racing by changing the wheels to the slick racing
tyres. Horror of horrors, one of the wheel nuts instead of undoing, sheared the stud off.
A dash home to find a replacement stud (2 ½ hour round trip) and then another 2 hours work to replace the broken
stud meant that we missed morning practice. It also meant that as the replacement stud was shorter I had to use an
old set of wheels on the back with old tyres on. This had the result of making the rear of the car try to overtake
the front on just about every corner due to the lack of grip.
Once again Dee took the car out first in the afternoon and bought it back for my run. She was still shaken by the
accident with the Lotus the previous day and had to try to close her mind not only to that but also to the fact
that I had just had the rear suspension of the car apart to replace the broken stud and she was once again being
used as ‘the crash test dummy’.
I thought as I sat on the line for my run that this had to be a conservative run to get a time in. The class
today was an E Type Jag, a TVR Griffith, both capable of producing 37 second runs. The MGB, and a Porsche 911. Once
again I arrived in the top paddock after a few sideways moments and sat for a minute collecting my thoughts and
thinking about the run.
37.600 was the time. The Jag and the TVR both recorded 38 second runs so I felt confident that I was on the way to
another class win. There was still not as much grip as there would have been had we not had the rain on Saturday
(and if I could have used my newer, softer rear slicks which would have produced much more rear end grip)
The second run was unfortunately a fraction slower for me due again to some sideways moments in the Karousel
complex but still a 37 second run and the TVR managed to do a 37.604 so I had won the class and got some points for
the championship.
On a good run I would normally be running a mid 35 second run so taking into account the events of the weekend
and conditions I was happy with the times that I posted and it looks to be a good season ahead of us.
The next meeting at Gurston Down is the National round on 25th May when there will be a spectacular array of big
engined singleseater race cars as well as specials and Motorbikes.
Tisbury Motors
01747 870258
Your local diagnostic expert
New generation diesels a speciality |
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