Following a quick rolling road session, James Colburn’s Austin A35 has been given the thumbs up. The fueling is spot on and the engine is making very respectable power. Next stop for the Westbourne Motors crew is Goodwood Revival.
Further success for the very quick Colburn brothers in their CCK tuned Austin A35 Academy racers at Donington. James Colburn bringing home the win with his brother Ben coming home 3rd. Both cars have spent numerous hours on our state of the art MAHA rolling road are prepared and run by father Richard Colburn of vehicle recovery firm Westbourne Motors. Photo Jeff Bloxham
Mike Haigh’s Ford Falcon is getting treated to a new cylinder head. The standard cast iron cylinder head found on the old Ford inline sixes has a terrible port and inlet arrangement with a ‘log’ type manifold cast onto the head. Back in the day the Australians got wise and cast their own heads with a separate inlet manifold and a standard 6 port arrangement. The head is otherwise identical and bolts straight on. It only took a year to source the rare Australian 250-2V head and get it shipped to the UK but it’s here, it’s been ported, polished and has big valves. We’ve machined a divider for the central siamese exhaust port and once it has been skimmed will be fitted to the bottom end. We are all taking bets as to what it will be worth in BHP.
Dave Griffiths FIA Triumph TR4 is almost ready for the 2016 season. We decided to get it on the new rolling road and get some data stored on the computer as well as checking on the mixtures. The new gas analyzer will plot all the gasses on a graph when we do a power run. With the CO’s now on a graph we can look at the trend, see where it is leaning off or getting richer. The TR4 was leaning off towards the top end. We changed an air corrector and got an increase of 2.2bhp. Not a huge amount but every little helps.
Shaun’s not had a chance to race his ex-Chris Conoley Marcos 1800GT yet but we are planning on taking it out this season. In preparation for some testing we put it on the rolling road.