would damage to the rod bearings be only audible above 2k rpm? seems like if there was internal damage, that you would get rod knock across the board even at idle. am i wrong?

If the engine was running that rich, wouldnt there be quite a bit of black smoke?If it isnt major engine damage, does it just need to be timed again to reduce the knocking?Also, when the engine was first built, it was built by a highly recommended builder/tuner who specialized in...

So my 4g63 has 1k on it since the rebuild. 1g, 16g, 550cc, 190lph, port/polish, fmic, etc. Doesnt have any kind of tuning tool ex. dsmlink, safc, etc. because its only running on 8psi for now. Also, it only has a narrow band o2 rather than a wideband. so my air/fuel could be off at wot. i dont...

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