Quote:
Originally Posted by OrbitalEllipses
As Rye pointed out, it's quite easy. Taking the headers off my WRX is painless, especially since I cut-out a slot for the A/F sensor in the heat shield.
People talking cams and headwork though...that's not so fun. That will require dropping the engine. For instance: valve adjustment on EJ powered Subarus typically runs ~$1000 due the requirement of dropping the engine. Another example: spark plugs are pretty much in the fenders, requiring dexterity and small hands (otherwise enjoy your cuts/bruises). First time I did plugs I think it took me 2-3 hours.
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Certainly true enough
The Subaru flat 6 is absolutely terrible to get plugs in an out of. The 4s in Impreza NA are easy tho
The 86 could be ok tho, however valve adjusting and cam changing is a cruel exercise, pass go on that idea of cam changing for a few measly extra hp
Historically Subaru flat four valve springs have been good for max rpm of 7500rpm since 1998
The Subaru 6 flat (not in this discussion really) is only good for safe 7000rpm - weak exhaust springs