Quote:
Originally Posted by Bfranklyn86
Firstly, that's an awesome build, great to see people keeping the FA20 rather than jumping ship, and sorry to hear it finally let go.
I was just wondering about the rods you used. I was aiming to keep the stock pistons as a way of saving money if I decide to build my engine, but was told I'd struggle to get aftermarket rods that would fit.
Did you have to machine the rods to get them to fit the pistons?
Sorry if the answer to this is somewhere in the last 50 pages!
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Yes you have to clearance the rods to run those pistons but also the tops need to be machined some and the DI pocket isn't correct for the FA20 direct injection.
While I made it work, it was mostly for us to test the DIT parts without buying a WRX. I also have infinite control over the DI with the Hydra EMS and I'm not sure you could get optimal results from the OEM ecu in that regard.
Forged rods and pistons (for boosted applications) are the only way to go if you have opened up the motor. Don't get me wrong those pistons are strong and honestly would have never failed had I not run that motor super lean.