^^^ Agreed. I have to wonder though: If Subaru comes out with 2.5NA engine for the STI version, then all is good. If they come out with a turboed/supercharged/etc engine, then a lot of this R&D is going to go to "waste". How many 2.5RS turbo kits are left?
Seperate theory: If they come out with a FA25 for the STI BRZ, and they are using a turbo'ed FA20 for the Forester, then who wants to bet the WRX gets the FA20T and the new STI gets the FA25T?
drwrx wrote:Sabre wrote:Impressive, but as one of the posters pointed out, that's peaky compared to some of the other turbo setups I have see on the BRZ. I'd MUCH prefer a flat torque curve with the setup of that car.
I'm not certain I agree. Over 300 lb/ft @ 2500 RPM w/ peak 474 lb/ft @ 4750 RPM. It certainly has "usable" torque across the board.
They don't say what size turbo it is, just that it is a "twin-scroll". My suspicion is Garrett GT30R size.
My concern isn't with the numbers, it's with the torque being peaky in a car that could easily start doing 360's. With the torque changing, the wheels are going to want to break free. If the torque curve was flat, this wouldn't be as much a problem. Senerio: Going through a curve at 80MPH and starting to give it throttle half way through to pull out of the curve. A flat curve will allow you to give it progressive power without breaking the wheels free. A peaky torque curve like the C has will cause the wheels to break free a lot easier, leading to snap oversteer.
lol, I could be totally off my rocker though, haha.