@KingMST originally from Port Elizabeth, now in the usa, the octane here at elevation are very low, we talking premium of 91 and all that crap fuel ethanol mix unless you can find pure gas. I agree the tune is/was at fault, I don't think we can fully blame the pistons here. A early solution from dealers was the Cobb accessport, sold right at the dealer, most here don't care if you have a stage 1 tune and if your ringlands go it is normally in X miles. Over all though it affects a small margin.
@KingMST Is it a possible problem: yes, is it a likely problem: No.
Not on the stock motor, if it was such a big problem it would account for far more ring land failures the of STI's sold, They dont have forged pistons like the 2.0 EVO no, but they have some pretty large size pistons which have to comply to emissions, forged steel pistons that expand cannot exactly be super tight in the cylinder, there is a reason why these are used in the 2.5 boxer.
And yes, I have a 2011 Satin Pearl White STI Limited with far more KM's that you state on the clock.
This is something that is certainly a possible failure and also dependent on the batch of pistons which subaru got from its then supplier at the time your car was built (that is if you even have a STI), but over all this is more hype than fact, just like the BS Toyota recall of recent.
And the last part, if anything was at fault here for this,it was the crap tune that was done on the car which tried to cover all altitudes, a simple re-tune which subaru did to try and fix this (by running it very rich I may add) took care of this further.
A simple flash by a Cobb Accessport for your octane rating was a early solution to the stock crappy tune that came with the car.
I go to a weekly car club where there is a large STI community, so far I've yet to meet one person with this issue
@necro1234yahoo Dude, which country are you from? Chances are (If outside South Africa) that your available fuel's octane ratings are much higher than here in SA... The stock tune is much too aggressive for the available fuels in SA, and Subaru Southern Africa doesn't allow us to have the cars properly tuned for our fuels while it's under warranty or service plan. But still they outright deny that there is a problem with ringland failures, eventhough so many has had the failure...
@KingMST originally from Port Elizabeth, now in the usa, the octane here at elevation are very low, we talking premium of 91 and all that crap fuel ethanol mix unless you can find pure gas. I agree the tune is/was at fault, I don't think we can fully blame the pistons here. A early solution from dealers was the Cobb accessport, sold right at the dealer, most here don't care if you have a stage 1 tune and if your ringlands go it is normally in X miles. Over all though it affects a small margin.
necro1234yahoo 3 months ago
You know what's awesome?
Buying a brand new STI, only to have it's 100% stock engine fail before 25K Km's due to Subaru's weakass pistons inevitably breaking ringlands!
KingMST 3 months ago in playlist More videos from SubaruSouthAfrica
@KingMST Is it a possible problem: yes, is it a likely problem: No.
Not on the stock motor, if it was such a big problem it would account for far more ring land failures the of STI's sold, They dont have forged pistons like the 2.0 EVO no, but they have some pretty large size pistons which have to comply to emissions, forged steel pistons that expand cannot exactly be super tight in the cylinder, there is a reason why these are used in the 2.5 boxer.
necro1234yahoo 3 months ago
And yes, I have a 2011 Satin Pearl White STI Limited with far more KM's that you state on the clock.
This is something that is certainly a possible failure and also dependent on the batch of pistons which subaru got from its then supplier at the time your car was built (that is if you even have a STI), but over all this is more hype than fact, just like the BS Toyota recall of recent.
necro1234yahoo 3 months ago
And the last part, if anything was at fault here for this,it was the crap tune that was done on the car which tried to cover all altitudes, a simple re-tune which subaru did to try and fix this (by running it very rich I may add) took care of this further.
A simple flash by a Cobb Accessport for your octane rating was a early solution to the stock crappy tune that came with the car.
I go to a weekly car club where there is a large STI community, so far I've yet to meet one person with this issue
necro1234yahoo 3 months ago
@necro1234yahoo Dude, which country are you from? Chances are (If outside South Africa) that your available fuel's octane ratings are much higher than here in SA... The stock tune is much too aggressive for the available fuels in SA, and Subaru Southern Africa doesn't allow us to have the cars properly tuned for our fuels while it's under warranty or service plan. But still they outright deny that there is a problem with ringland failures, eventhough so many has had the failure...
KingMST 3 months ago