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Now it is easy to understand why the flat-4 FA20 engine needs the strange offset on the connecting rods. It is so the rod bolts can be tightened.
Howard torques down the rod bolts.
Next, Howard installs the ARP head studs.
The Cosworth head gaskets are slid into place.
Next, the head is positioned and installed.
4 comments
Man, the FA is just not a power motor.
Not the Subaru, but just wanted to drop a line congratulating Michele on her GT-1 podium at the runoffs.
I’m curious why the pistons were coated after wpc treatment. Wouldn’t the tiny dimples caused by wpc be smoothed out or removed by the coating building up? Was wpc just for strength benefits? I’m also confused because I thought I’d read wpc treatment could be done to coated surfaces. Did they mean something harder like chrome?
Thanks in advance for any reply
I was using the WPC for ring groove freeness and longevity and to reduce the galling of the piston up there. WPC can be done to stuff like nitriding and hard chrome but it will remove organic coatings.