Quote:
Originally Posted by Sileighty_85
That makes no sense.. So what your saying is a built engine with high quality parts is worse than a OEM engine?
Majority of OEM engines now adays are built with cost efficiveness in mind. cheapest part to get the job done but still trying to maintain reliablity.
I built my SR20 in my living room about 5 years ago, DD'd, countless 400 mile 7 hour straight trips one way, Drifted and beat on it every day and weekend.
Still rocking to this day never had an issue even was still rocking the Stock oil pan until a 8 months ago
Its all about the quality of parts used and who puts it together.
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you said it right there-
who puts it together. who uses the dial bore gauge and who operates the machine that puts the finishing touch on the cylinder walls. who checks the roundness and straightness of all the parts, and who keeps it clean during assembly.
I doubt anyone in this thread owns and operates a machine shop. therefore, somebody else will be doing those things. We are back to
who does what. I do not blame the forged pistons for the blow-by and reduced oil quality. I blame the guy that put the wrong finish on the cylinder walls and made the piston/wall clearance too large. I blame the guy who lets the engine sit open in a room where the billions of airborne debris particulate have a chance to get inside.
FURTHERMORE, the cost of rebuilding an SR20DET with forged pistons more than rivals the cost of an OEM 2jz-gte engine, which we all know is perfectly happy around 500bhp, and the finish of all the internals is, in your own words, "Majority of OEM engines now ... get the job done but still trying to maintain reliablity." - AND we know the piston/wall clearance is right, the finish is right, the engine is clean.