Colerne Track Day

Started off this years track day season at Colerne with Motorsport Events last weekend. Have to admit it is the best "Airfield" track I have done and we had a really good day. Its a well laid out track with a great mix of slow and fast corners. Having made a few modifications to the Firefox over the winter an airfield track is ideal for testing out the car and making sure everything is working as planned.

Main changes this year were to fit a Janspeed performance exhaust manifold and ITG air filter as well as make some improvements to the induction. Also fitted a nice oil catch tank and strengthen the gearbox/engine mounts that were showing signs of stress after Cadwell Park last year. Moved the radiator and oil cooler to improve air flow/cooling.

After making these changes we had to have the Emerald ECU re-mapped. A trip to Bradley's garage/rolling road near Chipping Norton resulted in a very nice 156BHP, thats 15BHP increase over last year! Not bad for car that weighs less than 500KG.

Also replaced the rear 200lb springs with 400lb springs. Main reason for this was that we had noticed some rub marks on the rear tyres where the mud guards had been touching when the springs were fully loaded. 400lb springs were recommended by David Golighlty from Onyx Sports Cars to stiffen up the rear suspension to improve handling and also stop the rubbing. Worked very well on track but not a good idea for road use as your fillings will fall out.

Thanks to David Bence for the photos.