Moderator: 3ne2nr Mods
Minor update.
Finally upgraded plugs to 7's. NGK Iridiums. Car seems to respond better.
Slotted the oil pick-up
Replaced coil packs with a used pair. Much, much better condition than what I had originally.
Oil pressures:All taken at standstill
700rpm 15psi
2000rpm 38psi
3000rpm 54psi
4000rpm 74psi
5000rpm 80psi
Compression test was done 230,230,240,235psi or 1585,1585,1654,1620kPa. I'm not sure of the standard or lower limit for the 4G92 MIVEC though. Regular Lancer is 1422kPa with a lower limit of 1084kPa. I just used those figures as guidelines.
Now the last thing I did was replace the plugs and thats when I noticed a difference Should have done that earlier.
From mivec at 5200rpm, the revs increase and the pedal sinks faster(is that what happens?), the car is going up to 7200rpm and seems to hit a limit/starve.
The oil pressure is dropping from 82psi to around 65psi at mivec. Oil is 10w 30 Castrol.
Next step is the change oil to a 10w 40 0r 15w 40 oiland see what happens.
And after that, valve clearances.
NOTE: All those figures and obversations were at standstill...
Still working on it slowly but surely when I get time, but at least I got some kind of improvement.
Cheers!
star323 wrote:i hav a ck4 mivec and i noticed that when mivec kicked in there was a noticable sound change but no kind of change in performance... car is stock only change is free flow muffler... could there be any problem or is this normal?
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