Ray Hall Modded 87 Turbo 20V

Suspension

1987 Toyota AW11 MR2 fitted with a Turbocharged
7AF-E/4AG-E20 five valve per cylinder engine.

The Engine Block: 7AF-E 1800cc fitted with oil cooled pistons.
Cylinder Head: 4AG-E20 20 valve head
Pistons: 4AG-ZE Supercharged.
Conrods: ARGO Custom rods with 3/8" ARP bolts.
Crankshaft: Standard 7AF-E
Compression Ratio: 8.9:1
Boost pressure: 18 lb
Power: 300hp at 7000 rpm
Turbocharger: Garrett GT25 twin ball bearing, 320HP model.
Intercooler: Water to air using a separate radiator to cool the intercooler coolant.

The engine fitted into the AW11 MR2 without any
problems, the only major change was to the way the
engine coolant water flows through the engine, it was
changed to flow through the block first and then the
cylinder head.

Intercooler coolant radiator is from a Suzuki 4WD and
is mounted under the gearbox at a angle of 15% to
direct air into it from under the car.

Fuel injection is Autronic Smc sequential, replacing the
original ECU, the injectors are from the Turbo Sport
Celica

Boost starts at 1000 rpm, maximum boost is achieved
at 2700 rpm. The engine pulls strong from 1500 rpm to
3200 rpm, and from 3200 rpm to 7400 rpm. hang on.