I hate to create this thread but need to discuss options for an engine rebuild on my 2015 GT.
Symptoms: Peterson breather can will completely fill with oil blow-by after a every run session. While I've had blow-by issues in the past (especially through the driver side PCV) its finally reached a critical level. The car still runs STRONG but I cannot wait until a complete failure and the excessive oil blow-by creates a very serious safety concern.
Ran a compression and leak down test with the following results:
Unfortunately, the results suggest piston/ring damage to cylinders 7 and 8.
Some details regarding my existing build:
- Car only has ~18k miles and 23 total track days (i figure maybe 30-40 hrs track time)
- Engine modifications include: GT350 IM/TB, TSS billet OPG/CS, AED tune, Airaid CAI, Peterson breather
I've brainstormed a lot regarding paths forward and i'm leaning towards having a fresh factory short block (~$2,000) or possibly Ford Performance Aluminator (~$5,200) put in vs. rebuilding the existing short block. Maybe I can have a shop tear down the bottom end and replace the rings and or pistons, but at that point its tough to not just go with the fresh factory short block.
I put together the following cost estimate and have placeholders for labor and credit for the old short block. Any large items i'm missing here? Looking like an $11k rebuild after everything is done, minimum
I'm talking to a few shops near me (JPC and JDM) on estimates but want to be as educated as possible in making my final decisions.
Symptoms: Peterson breather can will completely fill with oil blow-by after a every run session. While I've had blow-by issues in the past (especially through the driver side PCV) its finally reached a critical level. The car still runs STRONG but I cannot wait until a complete failure and the excessive oil blow-by creates a very serious safety concern.
Ran a compression and leak down test with the following results:
Unfortunately, the results suggest piston/ring damage to cylinders 7 and 8.
Some details regarding my existing build:
- Car only has ~18k miles and 23 total track days (i figure maybe 30-40 hrs track time)
- Engine modifications include: GT350 IM/TB, TSS billet OPG/CS, AED tune, Airaid CAI, Peterson breather
I've brainstormed a lot regarding paths forward and i'm leaning towards having a fresh factory short block (~$2,000) or possibly Ford Performance Aluminator (~$5,200) put in vs. rebuilding the existing short block. Maybe I can have a shop tear down the bottom end and replace the rings and or pistons, but at that point its tough to not just go with the fresh factory short block.
I put together the following cost estimate and have placeholders for labor and credit for the old short block. Any large items i'm missing here? Looking like an $11k rebuild after everything is done, minimum
I'm talking to a few shops near me (JPC and JDM) on estimates but want to be as educated as possible in making my final decisions.