Car: EK Civic 3door.
Engine: JDM 1995 B18c1(OBD1); Standard P72 ECU; Custom Intake(simple stainless steel pipe with K&N Filter). Spoon backbox. (engine is not adjusted in any way for emissions etc as I'm in Ireland so JDM cars/engines are road legal)
I was told the engine had ~45k miles on it when I bought it(i've done less than 2k miles since).
Not throwing any codes in normal use. Will throw one for the ELD if you jump the pins but does not show this unless you do as the ELD is not critical (simply adjusts the alternator a little when you use more electrics, but there was none in the original fusebox(d14a4 engine - 1.4L), nor the UKDM DC2 ITR one that I used to wire it. This was an OBD2 loom which I personally spliced into the original 1.4 underdash loom and added the necessary wires for the OBD1 B18c1 engine loom.
The engine pulls very smoothly right through the revs and idles smoothly(if a little high sometimes - ~1000rpm tho usually the correct 900rpm).
I put the engine in summer 07, and it then saw minimal use over the following 8months, at which point I moved to France for 6months & it sat up. I've driven it occasionally since returning home at Christmas. Its covered less than 2000miles since the engine went in(&therefore has not been serviced since then).
On a local rolling road yesterday it only put out 151bhp and 133lbs of Torque - with a very obvious sudden drop off in torque at 6000rpm - see dyno charts below.
The guy who owns the tuning center advised the timing is a little advanced, but that it would need to be a cog out by a tooth to cause such a power loss. Though, surely if it were out by a cog it would run like a dog? His next suggestion was to check fueling after I check the timing. I'm running a Walbro 255L/hr pump - that I got off Ebay though so I guess that could be an issue?
So, my plan at the moment is to check:
-Change oil, oil filter, (& plugs?)
-Tappets are a little noisy - can someone tell me if these are hydraulic or adjusted by shims or whatever?
-Check Compression? Though surely if this was it it would not run/pull so smoothly?
Dyno Charts may offer some insight.