HpiRS4EVO said:
hey ne3ek, i have a 1992 protege DX and i want to but a bigger motor in it. u got any suggestions? i heard of the BP-t but its for an awd. i want the 1.8 dohc called the BP. and i heard of the GTX are they the same thing. i might Im u on aim, im NissanSentra2004. thanx for future help
The DOHC BP and BPT engines are pretty much the same engine, externally, but with some subtle differences. The main differences are mostly internal (Pistons, cams, valves etc.) and peripheral (Manifolds, Turbo, etc.) for Normally Aspirated and Forced Induction tuning.
The DOHC BP engines can be sourced from some 90-98 Proteges, 91-96 Escort GT's, 94-01 Miata, and the 94-01 Tracer LTS, and the 94-97 Kia Sephia GS.
They use higher compression pistons, but I know of some people that have slapped a BPT manifold and turbo to their EGT engines. Just don't turn up the wick too much and be sure to address the timing and fueling. I believe you'll be needing the ECU, dist. and harness from the BPT.
The BPT was the engine offered for the BG-body GTX sold from 1990 - 1993. There were differences between the GTX and GTR's engines (Turbo, Exh. Valves, Pistons), but nothing that would affect installation into your 90 - 98 Protege.
I couldn't tell you if your particular tranny will be able to handle the torque, sorry.
You can source engines from importers, and usually see one on Ebay from time to time.
Bookmark this page, the "BP" is linked on the chart.
http://members.aol.com/solomiata/MX5Engine.html