Blog Post

The damage caused at Brands Hatch

Dean Halsey • Sep 09, 2019

Damage report after winning 1st in class at Brands Hatch.

As you can see above this is one of the pistons, it was damaged as a result of the Webber flexible mounting seal cracking. This resulted in Cylinder no 2 to running very lean, this means not enough fuel resulting in detonation and this is the damage it can cause. We were very lucky all that's required is 6 new pistons / rings and a very light re-bore. If all goes to plan this engine will be ready as a spare for Dijon

As you can see above and closer up below the clutches have been cracking and just as well we suffered an engine failure just at the finishing line as the clutches would not of lasted much longer.

As you can see above this is "AP Racings" answer to these failures. They have changed the round hole to this halfround hole, this is supposed to stop this type of failure. Below you can see a close up of the shape.

The other casulaty was the gearbox, that had gone way passed its rebuild but thankfully it has survived and requires only new bearings and some love and attention.

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Well a great weekend racing at long last but it was not without its issues as usual. The data collection went great every sensor was being logged by the ECU and fed via CAN buss to the V-Box. We arrived Saturday afternoon and I had booked 2 motor homes to stay in to save the COVID-19 risk at hotels. They arrived on time and were a great idea, we moved into the garage late afternoon and got everything ready for our Sunday qualification. Come Sunday morning the qualification went well as this was my first race of the season, I qualified 12 th on the grid with a 1:23:68 , and I felt there was a second at least in my time for the afternoon race. We lined up and followed the pace car round for a rolling start and after the first lap I was eighth. I started to look how I could pass some of the faster cars and it appeared my best chance was at the chicane. So I decided to break 50 yards later something I know is possible but this time the brakes faded and I ended up being too fast to turn in so I pointed the car through the gravel trap straight onto the start and finish straight. I only lost 2 places but this made me conscious of the brakes and when I tried it again I barley made it through the chicane broad siding left then right to slow down. I decided to come in when the pit lane opened so as I could report the brake issue and we had 2 minutes to check the car out. During this pit stop I dropped 19 places. I came out passing cars as quick as I could, but the Mustangs were wide and difficult to pass when I eventually did the safety car came out. The clever teams out there already decided to wait for a safety car, and it worked most of them lost only 6 places as the safety car was very slow. It was then difficult to pass with my suspect brakes, but I managed to claw back to 13 th place. I stopped outside the garage and when I re started to enter the garage it needed a lot of revs to move the car, and when we put the car away the brakes were seized on and we had to winch it on. When you look at the pictures below, I do not know how I managed to stay on the black stiff but I am glad I did, it was the automatic cadence breaking my brain must of decided upon as it would have done for most drivers “on and off braking” for those who don’t understand, that kept me out of the barriers and in one piece. 
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Design changes to stop the failure we had a SPA
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An accound of our 240z racing in the SPA Classic 2019 within the CSCC.
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