Legacy RS/RA's were the first "STI".
"In November, '89 (December 1 release), pure competition car base for motor sports, RS-RA of a STi tune appear.Therefore the position of RS-R became considerably vague debut two months later.
It is written with a new car commentary book with "the order production RA memory model that executed engine fine-tuning same as the challenge car that 100000km speed records RS-R in a base."
As for the engine, forging piston and high resist pressure connecting rod metal are built in, and, as for the intake port and exhaust port, it is revised gap and polished up.
A crankshaft and the flywheel which got of balance are mounted the car with.If it is a beginner's class level, suspension is strengthened to the rank who can participate as it is.Variable ratio power steering is important, too.As for this, the steering gear ratio becomes quick.
Without close ratio transmission, it was announced as 100-limited model at first.Actually, seem to have continued job-order production of 20 monthly productions.
Long-awaited close ratio transmission was carried than a B type from May, '90, and increased with a catalogue model.
Engine specifications do not change from a latter period model C type, but
ECU becomes 16bit, and a torque up in middle low rev .(be said by an emission control that became mild) and continued to exist to the last D type, and
handed over a duty of RA of legacy to impreza WRX-RA with full model change-over, and the grade of RA disappeared from legacy."
Engine
RS-R
The engine & Transmissions are the same as RS.
RS-RA
based on RS-R and handcrafted RA tuning same as 100000km speed record car(RA:RECORD ATEMPT)
crank shaft, flywheel and clutch cover hand finish balance
induction system(cylinder head、intake manifold) hand finish repair gaps and polishing
A gold Alumite treatment surface cam cover
A intake mani-fold decoration cover abolition
An inter air conditioner case special color
A forging piston
forging kelmet high resist pressure connecting rod metal
A double radiator electric fan
close ratio transmission from B type
Start doing some tongue stretching.......
