GM LS1\LS2 in a Porsche 911
|LS2 Chevrolet Corvette -vs- Porsche 911 Carrera "S"
Road & Track
Porsche 911 Carrera S
By Mike Monticello
The Porsche posts 0-60-mph times a tenth quicker than the Corvette, and holds that tenth
through the quarter mile as well. Thanks to the Carrera's rear weight bias, it gets a great
launch, but that's really the only reason it's quicker. Out on the street, the LS2 definitely
has a leg up on the flat-6 power-wise. In an impromptu roll-on in 3rd gear, the Corvette
easily gapped the 911.
Of course, the Carrera S's boxer-6 still sounds vaguely like a Volkswagen Beetle at idle
and low revs, but once the tachometer needle starts scrambling upward, the growl is pure
911 magic, all the way up to the 7200-rpm redline. But can it hang with a Corvette that
boasts 400 bhp and 400 lb.-ft. of torque? It helps that the 911 weighs 70 lb. less than
the Vette, but more important in its 4.4-second run to 60 mph (0.1 sec. quicker than the
Vette) is the superior initial traction it gets on launch. The power of the Corvette is more
telling in the quarter mile, though, because despite the fact the 911 again eclipses it in
time (12.8 sec. for the 911 vs. 12.9 for the Corvette), the Corvette is ripping along at
112.3 mph while the Porsche manages 110.2. In real-world driving meaning roll-on
acceleration the Corvette is faster.
Beyond the lean new dimensions, the 2005 Corvette features significant upgrades in every
area of the car. The new 6.0-liter LS2 V-8 engine takes the standard Corvette Coupe and
Convertible across the 400 hp (298 kw) threshold, delivering a dramatic increase in
acceleration with excellent efficiency. With base curb weight starting at 3,179
pounds/1,442 kg (Coupe) and 3,199 pounds/1,451 kg (Convertible) the new Corvette is
significantly lighter than its predecessor - despite improved structure, larger wheels and
tires and greatly increased interior features.
And my point is.....the above article stated the test Porsche only weighed 70 pounds less
than the LS2 Corvette and both cars literally performed identically. The article also stated
"The power of the Corvette is more telling in the quarter mile, though, because despite the
fact the 911 again eclipses it in time (12.8 sec. for the 911 vs. 12.9), the Corvette is ripping
along at 112.3 mph while the Porsche manages 110.2. In real-world driving ? meaning
roll-on acceleration ? the Corvette is faster".
Facts to Consider
The Toy-Jet weighs 2,720 pounds with an average weighted passenger on board.
Most any early model LS1\LS2 converted Porsche will be at least 459 pounds lighter
than the lightest LS2 Corvette (3,179lb - 2,720lb = 459lb).
The above article boasted about the test Porsche being only 70 pounds less than the LS2
test Corvette, which enable it to out perform and out accelerate the LS2 Corvette through
the quarter mile.
Now with that said.....how about drawing your own conclusions concerning an LS1 or
LS2 Corvette engine in an early model, light weight, Porsche 911.
If the Corvette's performance is equal to that of a Porsche Carrera "S" which has 355
horse power and weighs 70 pounds less than the LS2 Corvette, What do you think
about an early model Porsche 911 that has 500+ horse power and weighs 459 pounds
less than the average LS2 Corvette?
To those who ask, why? I SAY WHY NOT!!!