Quote:
Originally Posted by ichitaka05
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I like it, the list of mods seem pretty conservative too... Until the very end..
"Mod list:
Subaru OEM 2005 2.5 RS spark plug wires
Subaru OEM 2005 2.5 RS coilpack
Subaru OEM 2005 2.5 RS fuel rail
Subaru OEM 2005 2.5 RS intake manifold
Subaru OEM 2003 WRX fuel injectors
NGK BKR6E-11 V-power spark plugs (copper)
Accufab 65mm Ford Mustang throttle body
TWE Stage III heads
TWE Stage II SOHC street cams
TWE 100mm 11.2:1 CR forged pistons
TWE 4-2-1 race headers (large primaries)
TWE 2.5" catless race pipe
TWE 2.5" midpipe
255 LPH Walbro fuel pump
Aeromotive fuel pressure regulator
Link Electrosystems LinkPlus engine management
108 Octane race gas
No muffler
No air filter - open throttle body"
108 Octane!!! Aaahhh. The fuel and timing on that thing must be right at the limit. You'd think they'd be using a higher CR since it's basically running on jet fuel. Jeez.
Even so, it's still an achievement. But I think the subaru kids on the linked forum are getting ahead of themselves - saying it's putting out higher output than that of modded Honda engines. Even old dinosaur B16's have been dyno'd to over 200WHP, stock crank, no additional head porting, with only increased compression, cams, and bolt ons, and proper tuning all on pump gas!!! - and that engine is ~1 whole liter smaller in displacement. That is much more power per liter than the modded 2.5rs engine. --- Of course, the power curve would be MUCH different. The B16's i'm referring to only make power above 5.5k rpms (usually having a 9-10k redline with aftermarket valve springs), while this 2.5 liter boxer is throwing out some meaty torque right from 2k. But then again, that engine is HUGE in comparison to the B16.. (2.5 liters vs 1.6)
Anyway, still pretty solid - but it *could* be much more solid with the addition of variable valve timing & lift (assuming it's in NA form), plus better flowing intake and exhaust porting.
C'mon Subaru/Toyota, make the 2.0L boxer up with the times!!!