Quote:
Originally Posted by Kimsey47
Yeah, the MPG hit is going to be something I'll have to get used to. Where I averaged about 31.5 over the life of my BRZ I can already say it looks like I'll be averaging around 18-22; however, it is fun as hell at the moment so hopefully that doesn't become too annoying! HA!
I know they've had issues in the past with the engine so perhaps its a gamble of sorts. I felt that they would most likely have sorted out those problems after using it so many years, and I haven't heard any complaints recently so fingers crossed! If they do have issues I'll just play the disease card in the means of, "As long as I don't know I have it, the longer I'll live." Or in this case, the car will live!  |
Sadly the EJ257s still have the ringland issues. I'm coming from a '14 STI and I had anxieties about it probably the same way as you did about the BRZ. Fear of engine issues took some of the fun of driving it away for me.
From my research here are some things to alleviate some of the gambleness of that engine.
- Get off the stock map, it is garbage. Cobb is a good start, pro tune is best.
- Air Oil Separator. These engines have lots of blow-by, oil in the intake can lead to detonation = bye bye ringlands.
- Fuel line mod. Could cause lean condition at high RPM. Cobb has a tech write up on it: http://www.cobbtuning.com/2008-sti-f...ical-overview/
- Oil pick up tube. Long standing issue with all EJ motors, cracked pick up tube starves the engine of oil = no beuno. Killer B makes an upgraded unit.
Basically the name of the game is do everything you can to reduce detonation. ie. Try not loading the engine up under 2500 RPM in a higher gear.
Or, you could just go forged internals and not have to worry about it as much. Not saying that it would become immune from detonation, just the ringlands wouldn't be the failure point anymore.
Not trying to scare you with any of this, just wanna make sure a fellow Subie bro is informed.
