[pisymbol]

I'm doing some research and trying to understand how far I would have to go to get into the low 12 or 12s. Can a full tuned stage 2 (TBE, down, up, headers, intake, map, tune, etc.) really do this or do I need to upgrade the turbo (something I really don't want to do)?

I was hoping people with previous mod experience (all years) could chime in and set me expectations.

[Digitalfiend]

With all the mods you listed, you could probably hit 11s @ 112+ with a wicked launch and a great tune. Throw in some 100 octane and high 11s should be a sure thing, if you can drive the car.

An 04-06 protuned stage 2 (TBE+ptune) STI is typically a mid 12s car that traps around 107-109mph. If the two '08s tuned by AMR are anything to go by, you should be in the mid to low 12s on pump gas. Add headers, intake, meth or 100 octane, and a good tune and 11s should be within reach.

[paikman]

yep. The VF48 turbo def has more capability. The only real mod I would say to guarantee 11's would be conversion to external waste gate. The only real downfall of Subaru's setup besides the weak flow head is the turbo boost tapering down at 6000 rpm.

[pisymbol]

Really, the VF48 is that capable huh? I plan to head to AMR soon for a stage 2 kit (as soon as I call them!) but I wasn't sure if there are enough parts out there to really do a complete stage 2. The only vendor I know for instance that does headers is Perrin (not that there is anything wrong with that but I like to have choices).

Btw, how reliable is a stage 2 kit for all year round driving?

[drdome99]

Originally Posted by pisymbol

Really, the VF48 is that capable huh? I plan to head to AMR soon for a stage 2 kit (as soon as I call them!) but I wasn't sure if there are enough parts out there to really do a complete stage 2. The only vendor I know for instance that does headers is Perrin (not that there is anything wrong with that but I like to have choices).

Btw, how reliable is a stage 2 kit for all year round driving?

i have 80k miles on my sti and have been stage 2 since around 20k miles

had front o2 sensor go bad on me... other than that stock clutch still and everything else

[pisymbol]

Originally Posted by drdome99

i have 80k miles on my sti and have been stage 2 since around 20k miles

had front o2 sensor go bad on me... other than that stock clutch still and everything else

Have you been to the track? What does 300 whp/wtq get you on average run? Low 12's?

[drdome99]

Originally Posted by pisymbol

Have you been to the track? What does 300 whp/wtq get you on average run? Low 12's?

high 12s, whp isn't really a good indicator as all dynos are different. My stage 2 is pretty much on the most minimal end as I have TBE w/ cat and tune and thats it. Stock headers, intake, etc. With catless, intake, headers, and race fuel it would be low 12s easy throw in meth 11s should be no prob.

[paikman]

Originally Posted by drdome99

high 12s, whp isn't really a good indicator as all dynos are different. My stage 2 is pretty much on the most minimal end as I have TBE w/ cat and tune and thats it. Stock headers, intake, etc. With catless, intake, headers, and race fuel it would be low 12s easy throw in meth 11s should be no prob.

^
Yeah trap speed is a better indicator of the real power a car is making.