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Got the car on the dyno for the first time yesterday. Just to get an idea of where it was at.
It made 115kw at the wheels, on 10psi, but on the 2nd of 3 pulls it had a knock at about 5000RPM and we stopped.
He said the boost rose to 12 pound when it had the knock. He had also said the car was running a bit rich.
Afterwards I realised the sudden power loss and feeling of a restriction I've been experiencing for awhile is probably also the result of the engine knocking. It usually happens to me at full throttle in 3rd or 4th, say when I'm on a highway entry.
Some details on it-
4g93t, had a head rebuild 10,000k's ago, with stock internals but ported and polished.
Evo 3 turbo, ecu, afm, injectors, and intercooler setup.
Standard 93t throttle body, intake and exhaust manifold (ported for the td05).
2.5" exhaust.
Never more then 5000ks between services which includes plugs, it runs really smooth and since the rebuild has never overheated.( an old problem it used to have).
Does anyone have advice or thoughts on what or where I should be looking to try and prevent this, not chasing ridiculous power just want to be able to put my foot down and enjoy my car. Cheers!
I once worked at a sign writer shop making big light boxes, for acrylic and polycarb we used a big bench saw with an acrylic blade installed. (They had alternating tooth angles)
I reckon a circular saw with an aluminium or steel blade would work ok though.
Anything with large course teeth will chip or crack it.
We also always left the sheet of protective paper stuff on.