Originally Posted by TheOtherDave™
My understanding is that he needs to re-hone the block because of internal damage.
And instead of raising the stock CR, he'd like to maintain or slightly lower it with the new forged pistions. Future plans include turbocharging the motor, rather than pursuing a naturally aspirated build-up.
The block will have to be rehoned regardless of whether it is damaged or not, otherwise the new rings won't have a rough surface to seat correctly. If the damage is bad enough to catch your fingernail after honing, you will need to have the block bored out.
Originally Posted by WiseGuyOnCouch
yeah i just don't want to have to wait for the turbo on a lower compression engine cuz it wont be as powerful
if anyone knows a place to get forged pistons in stock compression for gsr let me know! i mean i'm going to be doing all this in the next few weeks and i really like the higher compression cuz i'm gonna get the block sleeved and not too worried for after turbo...
also another question, would i have to change any fuel management to bore out my engine? And is it worth it in the long run for a build?
Any aftermarket piston company should carry forged stock compression ratio pistons for your GSR.
And yes, your fueling will change when you increase the displacement on any motor. A 2.0L GSR turbo would be a sick setup because you will have more power plus a good increase in torque.