NA vs SC
 

I haven't decided yet whether to go for 240-250 hp with NA upgrades (Intake, exhaust, tune) or go for 260-280 hp with a supercharger. Turbo is out because I have to remove it every second year for state inspection in the country I live. My goal is to have fun on track days, beat E36 M3's and use the car as a daily driver.

I guess I could start out with NA upgrades that is compatible with a future supercharger. The question is whether changing headers now can be a problem for a later supercharger? I would be a waste if a went for a turbo upgrade in the near future, but I can't see it would be a problem for a SC. Thanks!

I hope you're talking crank HP, because you're not going to get to 240WHP on intake, exhaust and tune.

Yes, cranck HP.

Exhaust upgrades will not interfere with a supercharger in the future. An intake may or may not still work through.

Thanks! That's what I needed to confirm. Then I will go for a full exhaust system first. Any vendors that have less restrictive sports cat that will pass the stock emission requirements yet?

Look into nameless performance, the downpipe/overpipe combo they have includes a pretty nice hiflow cat.

I'm def thinking of doing the same. Can't wait for a nice sc to come out.... But I want some power now! Already getting pulley catback now I'm looking at headers and crossover pipe. Let me know if you find a good match

Yeah S/C is a long term goal but so far it looks like we wont see a good kit for a couple months if not next year.

Hopefully my plans will go
Bolt ons-> S/C-> Forged internals for moar boost!

Anyone worried that the transmission will not like that much power? I wonder how well it will hold up under those conditions....?

there was a huge article about the ASIN tranny on the FRS saying it wouldn't take more than I believe 250lbs torque.
I might be wrong on numbers but i remember thinking it wasn't much what the tranny could take.

What about an inverted mounted supercharger mated to a sequential turbo system that uses unequal length headers to ease the pressure created from the flux capacitor therefore creating more spool from an inverted system. Wouldn't that be a better option for our cars?

That is over 100 lb.-ft. more than what the stock cars are putting down at the rear wheels. The Accelerated Performance turbo car is at 160 lb.-ft. with 4psi. Assuming 250 is the max there is plenty of room for improvement and in a car this light it will be awesome. Slap a trans cooler on it and forget about it for the time being.

"at the rear wheels" is irrelevant. Also, I think the torque capacity was less than 250ft-lb. I remember it being in the low 200s. Currently the torque going through the transmission is probably around 180ft-lb.

Fair enough. I am hardly an expert on these cars at this point but I have not seen any documentation one way or another. I have spent enough time working in the aftermarket with OEM engineers to know that they typically do not put components in a car that are just barely adequate. Especially in cars that are built to target enthusiast buyers. I would hope that Subaru and Toyota would be smarter than that. Time will tell though.