jamesmarks wrote:
hello ladies and gentleman.
4 days before Slemon, and I still cannot figure out the regulations in their entirety ,when it comes to modifications in the classes.
what's better than asking the regulars on here!
i have a 2008 subaru STI: the car itself is in the BS class
with the set of R888's, and coilovers I'm running, it puts me in the BSR class.
that's where i start to loose my track.
the engine has been rebuilt, nothing has changed except for forged pistons, stock bore, stock size, oem everything, except-forged
aside from that, just race oil pickup and baffle.
cold air intake, 3" turbo back, 38mm External wastegate @ 20psi.
can anybody help me or pointing me in the right direction to class the ol' girl.
last thing i want it to be DQ'ed at the event for being wrongly classed.
thanks in advance.
James Marks
Here's what I come up with:
2008 STi can fit into BS, BSR, STU, ASP and SM.
R888s aren't legal for BS (13.3.A) or STU (14.3).
Coilovers aren't legal for BS or BSR (13.8.A)
So you're left with SM or ASP (we'll ignore Prepared and Modified).
I'm honestly not sure on the wastegate. Is it the same size and location as stock? If not it's not SP legal (15.10.C.4.b). All the turbo rules confuse me. I would wager a change from an internal wastegate to an external wastegate wouldn't meet the rules.
Forged pistons are legal for ASP (15.10.R).
Oil pans/pickups are ASP legal (15.10.A).
Exhaust should be ASP legal (15.10.I).
SM is unrestricted for engine mods, as long as it's a subaru block you're fine.
I say SM unless someone has a better understanding of the wastegate rule, it's not worded very well.