Hey guys,

I am planning on begining to upgrade my 4AGE in my AE86 Levin and want some advice on a proposed spec list.

Before anyone flames me for posting a will this work thread I have done lots of reading and am just looking for the opinion of those who may know better than me / have more exerience with 4A series engines. Firstly, I am willing to lose some drivability for performance however I don't want an undrivable pig that only makes power after 6 grand. Secondly, yes I am chosing to keep the 16 Valve 4AGE instead of going for a 20V because I like the idea of keeping an era specific engine in it + the old 4A is a rad engine, just outclassed by new technology.

Spec List

HEAD
- 4AGE Bigport Head (3 Angle Valve Job, resealed and smoothed ports, upgraded valve springs etc, decked to raise compression)
- Compression raised to 10.5:1 to 11:1 or so
- Camshafts around the low 290 degree mark
* I have heard Smallport Heads lose their value after upgrading cams to this extent hence going the bigport head. Is this true?

INTAKE & EXHAUST
- 20 Valve Quad Throttle Bodies (Port matched, individual filters, retain 20 Valve TVIS)
- TRD 4-2-1 Extractors

MANAGEMENT
OPTION 1
- It is currently running an APEXI SAFC2 (Will this run the quads and cams this large properly? I have heard mixed reports)

OPTION 2
- Microtech LTX8 or Adaptronic or similar
- Convert to CAS and Individual Coil Packs
* Obviously the better option however if not 100% required I would prefer to keep the original ECU functionality and price

FUEL SYSTEM
- Surge Tank (Recirculated rise pump and 040 or similar pressure pump)
- Standard Injectors (Apparently the current ones have been reconditioned)

BOTTOM END
STANDARD
Am I dreaming to consider that the old 4A bottom end would handle this, obviously with a safeish tune and lack of abuse from a driver perspective?

Are there any major items / conflicts with components that I have overlooked here?

OUTCOME
I would like to think that I could get a reliable 180 - 200 rwhp from this kind of setup. Is that a little far fetched without going to aftermarket pistons/rods and no bottom end balancing work etc

Any helpful input would be appreciated.

Cheers,

Joe