Originally Posted by SubieRubyRoo
kstanf, like ZeeOSix has pointed out, Subarus are a little different than most people's "reference yardstick" in that the oil pumps are insanely high output for the size and horsepower rating of the engine, and I believe same kind of overkill on water pump output as well (think 35-40 GPM at redline) for reasons known only to the original engineers it seems. But yes, 8-12GPM of oil is plenty enough to keep even a twin-turbo, stroked 'n poked BBC making over 3000HP happy... so one has to wonder why Subaru chose to tack an additional 33-50% on top of that even for their most mundane engines that make around 175HP at the crank. But, they did it. And as I posted, 30 years of history and multiple millions of successful EJ engines have soldiered on, sometimes endlessly, with an overachieving oil pump and a teeny, tiny little filter with an infinitesimally small failure rate... proven by the fact that every engineering failure that Subaru HAS had has been endlessly publicized as the end of the world. Our local mail carrier has like a '98 Legacy that has over 400k miles (likely over 95% "city" schedule and very dusty gravel roads) on Amsoil and factory blue filters and has never had the valve covers off.
IMO, worrying about too small of a filter on a Subaru ranks far below worrying about how fast your last Taco Bell meal is going to hit.....
Gotcha
But hey you Subaru guys know a lot more about em than I do
Hail I've never even sat in one much less driven one or know any specs about em. Maybe other car manufactures need to figure out Subaru's secret behind such a strong oil pump. ðŸ‘
And as far as Taco Hail ...³...³...³ I'll pass on that deal ...‚
kstanf, like ZeeOSix has pointed out, Subarus are a little different than most people's "reference yardstick" in that the oil pumps are insanely high output for the size and horsepower rating of the engine, and I believe same kind of overkill on water pump output as well (think 35-40 GPM at redline) for reasons known only to the original engineers it seems. But yes, 8-12GPM of oil is plenty enough to keep even a twin-turbo, stroked 'n poked BBC making over 3000HP happy... so one has to wonder why Subaru chose to tack an additional 33-50% on top of that even for their most mundane engines that make around 175HP at the crank. But, they did it. And as I posted, 30 years of history and multiple millions of successful EJ engines have soldiered on, sometimes endlessly, with an overachieving oil pump and a teeny, tiny little filter with an infinitesimally small failure rate... proven by the fact that every engineering failure that Subaru HAS had has been endlessly publicized as the end of the world. Our local mail carrier has like a '98 Legacy that has over 400k miles (likely over 95% "city" schedule and very dusty gravel roads) on Amsoil and factory blue filters and has never had the valve covers off.
IMO, worrying about too small of a filter on a Subaru ranks far below worrying about how fast your last Taco Bell meal is going to hit.....
Gotcha
But hey you Subaru guys know a lot more about em than I do
Hail I've never even sat in one much less driven one or know any specs about em. Maybe other car manufactures need to figure out Subaru's secret behind such a strong oil pump. ðŸ‘
And as far as Taco Hail ...³...³...³ I'll pass on that deal ...‚
