The bottom end of my turbo motor is currently being torn down and evaluated by the person who will be doing the machine work and assembly. Depending on what he finds, I was planning on doing a stock rebuild with the addition of forged pistons, leaving the CR close to stock. My RWHP goal is in the 300-350 range. It was suggested to me that another option would be swapping out the 280xzt rods and replacing them with 9mm 240z rods and forged pistons which Dave at AZC sells. I believe that this would in effect up the CR to approx. 8.4-1 to 8.5-1. I was told that this would make the motor less of a dog off-boost and would be able to reach my HP goals using less boost. I plan on using my SDS to control everything. My question is this: does it make more sense to go with the Stock CR which would leave a larger margin of error when tuning etc. or is it over conservative considering the superiority of todays stand-alone (SDS) EFI systems? All opinions welcome!
Thanks
Joe