Quote:
Originally Posted by Blue_6.2
455−335 / (455+335) /2 x 100% = 30.37974683544304%
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This may be correct numerically, but doesn't tell the real story. The V6 has much, much less torque in the low rpm range, and that is the only thing anyone ever feels in a daily commuter.
Real world-ish torque numbers, with a 15% drivetrain loss for the A8 with these two engines would look like this (of course each individual car will differ slightly, plus temperature, altitude, humidity etc. can skew it):
.......torque (lb-ft)
rpm.....LGX...LT1
1000...110...180
1500...160...268
2000...185...310
3000...215...360
4000...230...375
4500...235...385
5000...238...375
The V8 already exceeds the max torque of the V6 well under 1500 rpm, practically at low highway cruising speed in 8th gear. The peak diff when holding the go pedal down is about 60%.
There is no comparison in the sensation of power, really, and I had both these exact cars---but then again, this may not be what matters the most in a daily driver.