[Turbowned]

Originally Posted by DarkSunrise

Couldn't agree more. I have yet to drive a turbo-charged car that offered the level of responsiveness of a N/A car.

Low-rpm boost != responsiveness. My current car has a small, quick-spool turbo and peak torque is available under 2000 rpm. Still nowhere near as responsive as a N/A engine.

What's your current car? The most responsive turbo car I've been in are the 2010+ A4's. Peak torque is 258lb/ft and it comes on at 1500rpm. Pretty crazy!

I don't have the energy to spew a bunch of technical data right now (if I even had any), but the seat-of-my-pants dyno tells me I want a supercharger over a turbo. With the exception of the aforementioned A4, every turbo car I've driven has lagged at the low end, which would ruin the personality of a car like this one. The linear power curve of the roots blower (can't speak from experience on a centifugal) can't be beaten. This past week I've rode in 3 Subarus - '04 STi stage 2, '11 WRX stock, and '02 WRX with hybrid 2.5block/2.0heads, VF39 turbo w/ RA gearset, and they all had laaaaaag. Compare that to my S4 which you could put a ruler on the power and torque curve; it comes on and stays on until redline which is just phenomenal. It probably helps that the engine is a 3.0L vs. a 2.5 in the Subies, though.

Anyway, I'll gladly give up peak power for responsiveness in this car, and I think most people would agree. I don't think I want more than 300bhp anyway, which I think an intercooled Rotrex and supporting mods would accomodate.