I just bought a Japanese import 13B-REW, but I am unsure what model year car it came from. Some identifying features:
1. The boss for the coolant cap on the engine is a 1 piece casting. I believe all 1993-1995 engines have a small removable aluminum pedestal for the coolant cap rather than being cast as a single unit with the piece below it.
2. Engine computer code is "N3F1"

I am mainly just trying to figure out if this thing has the better turbos (99-up). Is there an external difference that I could look for on the turbos?

Also, is there any use for the later style vacuum solenoid stuff? It is significantly different than the 93-95 setup.

Thanks!

 

on the compressor housing of 93-95 turbos it says n3a1, on 96-98 turbos say n3c1 (i think), and 99+spec turbos say n3g1, the 96-98 turbos are pretty much the same as n3a1's but i think have different types of alloys in the exhaust housings to help prevent cracking IIRC.
vacuum "block" required use of jdm wiring harness, or really a crap load of time converting the usdm wiring harness.

 

At work at the moment, iv got a jdm 96 fd sitting outside. will go and check what my ecu says on it during my break...

 

couldent be bothered waiting for my break. just checked, my ecu says N3F1A.
tis a JDM 1996 type-RS

 

phrost is correct.

The 280hp turbos have N3G1 stamped on them.

 

Thanks guys. I will check out my compressor housings tonight.