....basic story is, map sensor converted rev2 jdm engine to run a rev3 power fc.
..anyway, i had it road mapped, it was showing high water temps, but not overheating.
..week or 2 later, started overheating on high boost.
...power FC maps were all good, could get decent duty levels on this road map, and this was in 20-25C weather....replace headgasket, 1mm cometic, and arps studs, and fit a gen3 inlet camshaft while the head is off.
..(head work done Nathan at Century Motorsport)now i get it back on the dyno to tweek the map for the gen3 inlet cam, and Ryan couldnt advance timing enough, and there seemed to be no air getting to the engine to mix with fuel, something along those lines Ryan tried to expalin to me.
...basically had to abort the runs as couldnt get more than 70% on my 540s..... possible cam timing, igntion timing wrong was a suggestion.
...and that my turbo was on its way out, i run a ct20b....(lots of oil smelly exhaust fumes at the dyno possibly the reason for causing quite a bit of knock as the octane was being lessened by the oil)...Went up to see Marc
(3SGTE) to check cam timing, thanks dude, and he confirmed everything seemed to be correct in this department, but my pistons and lined up cams showed that my true DTC was at 4degrees on the pully! obviously i timed the car up based on my dtc was at zero....so in theory, my true 10bdtc is actually at 14 on the pully mark....ive heard the marks arnt always true...anyway, ive also noted that aparently the powerFC controls this ignition anyway, so it doesnt really matter if my car was at 0 or 10, it still would have timed up correctly.
..so timing it back up to 14bdtc, prob wont make much difference, but im not sure on this aspect of things??
any suggestions on what else could be causing this low level of duty cycle???
thanks
here are dyno graphs anyway, these are dyno dymanics UK dynos.
.note 279hp is at the fly, 235whp at the wheels, 1.1bar, ct20b, 540s, power FC.
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his seemed rock solid! couldnt feel any play.
