Strongest Subaru engine
22 October 2008, 08:20 PM
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Strongest Subaru engine
What is the strongest Impreza engine that subaru make/produce?
I don't mean for tuning, but just as it was made.
I don't mean for tuning, but just as it was made.
22 October 2008, 09:28 PM
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Any Newage 2ltr afaik, as already suggested topped by the JDM Bugeye. But I believe the "forged" pistons in them are not to be confused with other types of forged pistons available aftermarket... again afaik.
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23 October 2008, 11:03 AM
#9
All the newage engine are strong as Shaun states, its just the bugeye had better pistons and are better than the hyperutectic pistons used in the 2003 and onwards cars.
These pistons run much tighter clearences which can lead to issues and also are not good for running high boost due to the silicone content within them.
Banny
These pistons run much tighter clearences which can lead to issues and also are not good for running high boost due to the silicone content within them.
Banny
23 October 2008, 12:24 PM
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Not quite right banny 
Those hypereuetic pistons can run high boost quite easily, the problem they suffer from is det, they are not as robust, but they are very strong otherwise, and they dont expand as much as the "forged" pistons which makes them better in many cases.
Also the rest of the engine on the JDM cars is an improvement over the bug/blob forged unit, due to upgraded parts (grooved crank for instance for better oil flow), but dont expect either type of engine to be reliable past 450bhp
Tony
Those hypereuetic pistons can run high boost quite easily, the problem they suffer from is det, they are not as robust, but they are very strong otherwise, and they dont expand as much as the "forged" pistons which makes them better in many cases.
Also the rest of the engine on the JDM cars is an improvement over the bug/blob forged unit, due to upgraded parts (grooved crank for instance for better oil flow), but dont expect either type of engine to be reliable past 450bhp
Tony
23 October 2008, 02:34 PM
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23 October 2008, 06:00 PM
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Thanks guys so far. No idea what you are talking about, but it kinda makes sense 
So what makes a 'blue printed' engine better for any other like on the 22B?
So what makes a 'blue printed' engine better for any other like on the 22B?
Last edited by SC008Y_MAD; 23 October 2008 at 06:10 PM.
04 February 2014, 10:51 PM
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Hope you guys don't mind me resurrecting an old thread, so based on more recent knowledge and more probable facts - what exactly is the difference between the V7 / 2002 STi Type UK bugeye engine vs the JDM? also is the bug engine still seen as the strongest?
Does anyone have any actual facts? It *seems* that the engines themselves are identical.
On a side note, I am convinced (though it might just be my bias) that the STi sounds different to a WRX but then again it may just be me convincing myself when it really doesn't in reality, what do you think?
Does anyone have any actual facts? It *seems* that the engines themselves are identical.
On a side note, I am convinced (though it might just be my bias) that the STi sounds different to a WRX but then again it may just be me convincing myself when it really doesn't in reality, what do you think?
05 February 2014, 03:54 PM
#27
Hope you guys don't mind me resurrecting an old thread, so based on more recent knowledge and more probable facts - what exactly is the difference between the V7 / 2002 STi Type UK bugeye engine vs the JDM? also is the bug engine still seen as the strongest?
Does anyone have any actual facts? It *seems* that the engines themselves are identical.
On a side note, I am convinced (though it might just be my bias) that the STi sounds different to a WRX but then again it may just be me convincing myself when it really doesn't in reality, what do you think?
Does anyone have any actual facts? It *seems* that the engines themselves are identical.
On a side note, I am convinced (though it might just be my bias) that the STi sounds different to a WRX but then again it may just be me convincing myself when it really doesn't in reality, what do you think?
05 February 2014, 03:54 PM
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2006 sti engin and box
New to this but any one on hear intrested in a 2006sti infinite and box 30 thousand mile full history it was taken out my sti that was written on rear end damage was going to scrap the car but mate told me this form would find a buyer offers
***** wonka 2.5.SJ.
