At Roaring Forties, we recommend two engine types. This is to ensure vehicle compliance throughout all states and territories within Australia. These are the Modern Ford 5.4L Modular V8 (all states) and the Ford 302 Windsor (Qld, WA, NSW & SA only).
Other engines are available on request. Please contact us for further information.
Modern Ford 5.4L Modular V8
The current 5.4L modular Ford V8 engine recommended by Roaring Forties is from the BA / BF (260kW) XR8 and (290kW) Ford Performance Vehicles (FPV) from Australia.
This allows RF clients access to the latest Ford and FPV engines and calibrations ensuring performance, drivability, conformance to emissions standards, and no concerns with the acquisition of local parts and service support.
Roaring Forties were the first replica GT40 manufacturer with the ability to offer a complete bolt in solution to running the modern 5.4L engine. RF have successfully achieved the running of these engines outside their Falcon environment.
The electronics work undertaken by our key suppliers ensures your car will start, run and drive like it is in its natural environment. There are specific encryptions in the calibrations to ensure this valuable IP remains ours and yours.
All of the engine brackets, mounts, wiring, ECU (electronic control unit) revisions, new gearbox and stabilizer mounts, thermo housings, etc have been completed for these engines and are available in kits now.
The manifold displayed is intended for the track warrior chasing the original appearance of the IDA carburetors and is available from Roaring Forties.
The 5.4L offers 500Nm (XR8) and 530Nm (GT and GTP) of torque and toward 400bhp in the old money for exhilarating performance – straight out of the box!
Ford 302 Windsor
The venerable Ford 302 Windsor V8 was used in the RF GT40 replicas from 1997 through to 2004 Australia-wide, until the ADR emissions rules (for Individually Constructed Vehicles) changed from 37/01 to 79/00. This engine can now only be registered in QLD, SA, WA & NSW.
The engine is based on the Windsor used in the original GT40 race cars, albeit with modern fuel injection, roller cam, emissions friendly cylinder heads and a vast array of development in the almost 40 years since the cars were on track at Le Mans.
We offer an ADR compliant exhaust system complete with cats and mufflers or alternatively the cross over race system to extract the most at the track!
Supercharger Kits
In conjunction with Herrod Motorsport, Roaring Forties are proud to announce the availability of two Supercharger kits.
The first is fully ADR complied and develops 373kW with 6lb of boost. The second around 450kW involving engine hardware upgrades.
The first two engine packages with 260kW and 290kW will provide awesome power in a less than 1200kg Vehicle (the first registered 5.4L RF weighed 1171kg). Imagine the supercharged versions ...
The high output version has just under the V8 Supercars level of power, 100Nm more torque and the RF weighs 150kg less than a V8 Supercar.
In Australia, replica GT40's are considered to be new vehicles and must comply with all relevant Australian Design Rules (ADR's), as well as each individual state’s local transport department regulations, and in particular, the exhaust emissions standards.
Some States allow motors up to 5 years old to be used (ADR 37.01 compliant) - 1999 or later. For these applications the Ford 5 litre Windsor can be used. Other states require motors that comply with the current emission standard (ADR 79.00) 2003 or later.
RF chassis have been designed to accept the 302 Windsor, Ford Modular 4.6L and the Ford Modular 5.4L engine. In addition Roaring Forties have designed an engine/chassis/body/accessory system specifically for each of these applications.
In North America and the UK, the Ford 5 litre Windsor engine can be used, or alternatively the Ford Mustang 4.6 or 5.4 litre alloy Quad Cam can also be installed, as all have been engineered into this chassis/drivetrain combination.