What is the difference between a turbocharged engine and a naturally aspirated engine with equivalent numbers (same horsepower, torque)? So basically if you put a turbo engine with 300hp and 300tq in a car and then a N/A engine with equivalent numbers in an identical car with an identical driver what would the difference be? Is it just a feel sort of thing? Would one be faster than the other? kind of a newb question but ive been wondering for a while

NA would be faster because it doesn't have turbo lag (then again, each one could have different powerbands and one could hit power earlier than the other). And thats basically the only reason. The powerband might look a bit different too but thats about it.

The biggest difference is the guy who built the N/A motor to 300hp will be even more broke.

The biggest difference is the guy who built the N/A motor to 300hp will be even more broke.

LOL I was about to say something similar. :lol: :lol:

You are asking which car is gonna be faster based on peak numbers... Area under the curve is what matters. One motor can be building 285ft lbs from 2500-6500, peaking @ 300ftlbs. The other can be building slowly from 100ftlbs @ 2500 to a peak @ 300ftlbs...

Which car will be faster?

funny just done this test last weekend. See below in 2.5L/2.2L thread.
N/A is good low down and even power delivery through out ,against wiz bang pop stab of power above 3000rpm turbo. Me? N/A any day but then again I older than most guys on this forum! ha ha

If the two cars you are comparing had the exact same HP and tq AND at the same RPMs then the car should feel identical. However, just simply by the way N/A makes power and forced induction makes power, this scenerio is very unlikely. Just as F4tune mentioned N/A is good down low because the tq curve on N/A starts out high and stays high. Turbochargers make compression from exhaust so there is a lag and this pushes more air in the higher RPMs than in the lower RPM range.

So if your what your really asking is 300/300 on a subie only, I would say the N/A would have more power throughout the power band, so in most situations the N/A would be faster. Hmmm built EZ30 anyone?