More nice TRD 3SGTE pics, from the GT 500, think the chassis is based on the JGTC type
"GT500 Supras have used various methods of propulsion over
the years, and despite the legendary tuner status of the 2JZ
it's been without six-pot power. Why? Easy: weight, fuel
efficiency, deck height and positioning in the engine bay are
all critical factors that rule out a long, heavy twin-turbo in-line
six.
Early cars like this one use a highly evolved version of the
twolitre four-cylinder 3S-GTE – a motor that saw extensive use
in Toyota Team Europe's Group A Celica GT -Four rally cars.
While we'd love to give you guys the skinny on what lies
within the low-set block, the actual specs are top secret.
We can tell you that it was built from the ground up, but isn't
as extreme as many would think. This is due to the 375kW
power limit, enforced by a 43mm intake restrictor, which sees
the motor producing peak power at a lazy (for a race car of
this stature) 7,200rpm. Torque is monstrous, with over 590Nm
at a lowly 5,200rpm, while power delivery can be altered to
come in between 6000 and 8500rpm, depending on the track and what ECU is used.
It is unclear whether the motor is still of the original 2.0-litre capacity, or whether it has been stroked and bored to a larger size, but the low RP M ceiling and high torque figures point to a swept volume now larger than 500cc per-cylinder. What is more amazing is how far TRD went to ensure that it now sits below the height of the rims and well behind the front wheels, effectively turning the chassis into a mid-engine/rear-drive machine.
This is beneficial to the handling and braking, ensuring the weight is between the axles and as low as possible. Interestingly, the radiator is V-mounted in the nosecone, while the small frontmount is positioned horizontally."