I have a copy of a copy of a copy of the manual I'll take it to work
tomorrow and see if it scans up OK. Under the engine spec section for
the 4AGE (N1) it indicates...
Head gasket 11115-AE812
Comp ratio 10:1
Standard AE86 injectors (JDM Levin spec I guess)
Spark plug #31
Air filter element and intake resonator removed
Exhaust system N1 spec (from factory cast section)
I'm not sure what class of racing they are referring to when saying N1 ??
My recollection is that N1 was a higher spec than Group A, and that the
engines were pretty much TRD everything. Maybe there was another "N1"
with a spec closer to factory ?
EDIT: My bad... was getting mixed up with N2
In any event, I am led to believe that the Multi ECU was designed to
work with a specific set of engine modifications. However, the manual
does not contain any details beyond the above.
Cheers... jondee86