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Connaught Competition Engines

£ 21,975

Delta IR F4 1976 British F4 Champion

Drives Available



I raced the 3rd IRF4 in the 70's against John Brown/Ian Reed racing team.
It brings back a lot of memories.....It was the best car race car I ever drove, i was super stoked when i set a lap record in the wet at Snetterton in a race in 78/79
The car looks almost the same as it was back then.
Keith H

Number 2 of 3 Formula 4 cars built by Delta Racing Cars, LTD of Surrey, UK


John Brown drove the 2nd Delta IRF4 to the 1976 British F4 Championship after placing third in 1975. The Delta was imported to the United States in early 1977 where it competed in 8 SCCA National events including the Champion Spark Plug SCCA runoffs at Road Atlanta. The car has only been raced 5 more times. The chassis is in like new condition.


The Delta was garaged from 1979 to 2014 when the Girling Aluminum brake calipers were rebuilt along with new stainless flexible brake lines. A fuel cell was installed and the radiator was rebuilt. The Delta spent about 15 minutes at a track day and was once again parked.


I raced Delta 144 only once at Black Hawk Farms, Rockton, IL in June of 2018. Heavy rain fall that weekend and my failure to fog the engine resulted in the 1mm cast iron compression piston rings on the Cosworth pistons rusting solid. The motor has a Cosworth steel 3 main bearing crankshaft, Cosworth rods and an A8 Cosworth camshaft. The motor drives through a competition clutch to the Hewland MK9 trans axle with inboard disc brakes.


The engine was completely rebuilt. J&E laser scanned the Cosworth piston and then CNC machined an exact replacement. The new J&E pistons, pins and rings were installed after PHP Racing Engines, Lake Zurich, IL bored and honed to fit the cylinders. New bearings were installed and a 3 angle valve job was completed. PHP also degreed the camshaft which is gear driven with an offset pin to ensure correct camshaft timing.


The engine was dynoed by Barry Sale of PHP Racing Engines in May showing 100 hp. The motor runs two 40mm IDF Weber carbs on a radically modified cylinder head. The original intake ports are sealed. Then new ports are drilled directly above the intake valves with intake manifolds welded to the cylinder head.


The original MAE (modified Anglia Engine) motor as raced in British F4 used a single 40 DCOE Weber utilizing only a single throat. SCCA FC engines used the twin IDFs. This motor exceeds 9,000 rpm with just over 1000 cc.


Al Veracines of McKee Engineering (retired), Lake Zurich, IL fabricated a new steering shaft with the removable steering wheel mount. Al also inspected the car and verified the fuel cell. The original non removable steering wheel and shaft are included.


All the oil lines have been replaced with Aeroquip hose. All the pressure lines are Stainless. The radiator hoses have been replaced with silicone hose. The brake masters have been replaced with Wilwoods. The original cartridge oil filter has been replaced with a spin on adapter.


The ignition system is a new Pertronix billet distributor powered by a MSD Blaster coil. A rebuilt starter is installed. (original parts are included)


Instruments include a 12,000 RPM Chronometric tach, a water temperature gauge and a combination oil temperature/pressure gauge. An SPA FireSense AFF fire system is installed (recharge due).


Safety harness is a Sabelt Formula car set that was new in 2018. New taller mirrors have been installed to accommodate a HANS device. Wheels are 3 piece and there is a spare set.

The chemical in the fire bottle has been banned in the US

Keyword Search Terms:

Formula 4 SCCA Formula C


Item Location: Kalamazoo,MI
Seller: Taver Racing
Joined November 2023
  Peter Taft
Seller's other ads
Company: Taver Racing
Country: United States of America
City: Wilmette
Phone: 847 946 1162
847 946 1162
Condition Rebuilt
Trade or Private: Private
Price: £21,975
Make an Offer
Added: 13/11/2023
Views: 1777

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