I'm a brand new owner of a 2013 STI...my first Subaru, so be forewarned that this is probably a noob question: Now that I've allowed for some time to break in the engine & drive-train, I'm starting to see what this bad-boy can really do. I've noticed that when I do some pulls, say from 35km/h --> 80km/h in 3rd gear with close to WOT going from probably 3,000 RPM --> 5,500 RPM range the car definitely lurches when coming of WOT quickly (releasing the gas pedal quickly)....maybe lurching isn't right word...just that same feeling or close to the same feeling that you would expect to feel when engine breaking, but relatively strong (or like a go-kart type feel). I'm assuming that this is just how the gearing/engine/transmission is designed in these cars, but was hoping for some comments from some other members. If I do the same type of pull and then shift up instead of come off the throttle, it continues to accelerate smoothly, as one would expect. I guess that I had expected it to be a bit smoother coming off-throttle, but I also realize I'm running high RPM in a low gear. Anyways, I imagine that this can't be great for the drive-train, but again, just looking for some general comments/experiences with this. I've only done this a couple of times BTW, and haven't noticed any negative affects...don't plan on doing this too often though.
FYI, My last vehicle (which I still own) is a 2007 Mazdaspeed 3 with some bolt-on parts, so I am used to driving a car with similar 6-speed transmission, torque/power, turbo etc. The Mazda seems to come off-throttle much more smoothly.....but it's a completely different car, so a bit like comparing apples to oranges.
Well, any input would be greatly appreciated.