AFTER just one year of racing, Tim Cross has cemented a seemingly uncatchable lead in the world of 275 Radial, ahead of the Paramount Performance Commodore of Terry Seng and Steve Bezzina’s stunning Falcon.
His last two meetings have seen him run in the 7.01-7.03sec region in the Dandy Enginesprepared, twin-turbo Cortina built at Pro Fab in Wollongong. The 450ci Windsor-headed smallblock has nibbled away at the lead, from 7.80 on debut a year ago to a personal best of 7.01 at Willowbank a few months back. Pro Fab’s Joe Gauci has made refinements to the suspension and the Dandy lads have crept up on the tune and power delivery, to the point where the car is now set to dip into the sixes on 275s.
“We currently have 37lb of boost in the engine,” Frank Marchese from Dandy Engines says. “We know that the twin 88s will make up to 55lb of boost on a small-block, but we have not needed to tune beyond the 40lb mark up until this time, so we are just taking it easy.
“The car is currently crossing the line at 9000rpm, so we know we need to make changes to the converter, as adding more boost at this point is only going to make that worse. We like to see converter slippage at five to eight per cent, and we have more than that at the moment. If we can tighten that up and make another 200hp I think a 6.80 isn’t out of the question.”
Unlike most of the small-block Fords the Dandy team have built, this engine runs an Edelbrock Victor head rather than the Cleveland-based CHI deal. The motor has a Dart block, Callies crank, BME alloy rods and the larger CHI intake with Precision injectors and Enderle belt-driven fuel pump.
A PT3000 water-to-air intercooler keeps a lid on intake temperatures, and at this point the car is still running the BigStuff3, although the car may end up with a new platform at some stage.
Naturally Tim’s Cortina is fitted with an AMS-1000 boost controller, and coupled with suspension improvements, this would be the most important tuning tool on the car.
With Seng at 7.41 and Bezzina at 7.38, Cross holds a sizeable lead, and given the ease and grace with which this car seems to get down the track, a six-second pass seems imminent at its next meeting. 203mph on a 275 radial!
That’s moving! s
GIVEN THE EASE AND GRACE WITH WHICH TIM’S CORTINA SEEMS TO GET DOWN THE TRACK, A SIX-SECOND PASS SEEMS IMMINENT