CN

This may be a long shot but here it is...

A 964 on a cold day when the air is very dense has more punch than a 993 on a hot day. I have experienced this on many occasions with my 993. The difference in performance is extreme from one air temperature to the next. In addition, if the 993 was running the air conditioner and the 964 wasn't during your ride, that could easily account for the noticable perfomance difference in favor of the 964. These cars are close enough that operating conditions will favor any one over the other.

Having said all that, everyone knows that a silver colored 993 will always trounce a 964 all other factors being equal!!!

cafebisque

I have not actually compared the numbers, but my chipped c2S Cabriolet feels faster than my c2S. I don't know if it's the weight of the c2S over the 964 or perhaps the altitude in Colorado, but the 964 feels faster. However, I do agree, that the 993 is much more refined and a better driver by far than the 964. Yet, the C2 Cab just has that nostalgic feel to it. Got love them both for different reasons.

______________________
90 C2 Cab
97 C2S
91 Ferrari Testarossa
01 Lamborghini Diablo 6.0

face-ache

no way it hits 60 in 4.9, more like this.. 0-60mph: 5.5 sec (manual transmission) , 6.4 sec (Tiptronic)

Pan58

just some stuff I found ....


The first 964s available in 1989 were AWD equipped "Carrera 4" models, Porsche added the rear wheel drive Carrera 2 variant to the range in 1990. Both variants were available as a coupe, Targa or Cabriolet. The 964 Carrera was the last generation sold with the traditional "pop top" Targa roof. Later evolutions of the Targa, starting with the 993 generation, replaced that setup with a complex glass-roof "greenhouse" system. A new naturally-aspirated engine called the M64 was used for 964 models, with a displacement of 3.6 litres.


[edit] Engine
Engine design: Air/oil cooled, horizontally-opposed, dry-sump lubrication, rear-mounted
Engine displacement: 3600 cc (220 cu in)
Cylinders: Six, light alloy head
Bore and stroke: 3.94 x 3.01
Compression ratio: 11.3 : 1
Fuel/ignition: Electronic fuel injection, DME controller, with twin-spark with knock regulation
Crankshaft: Forged, 8 main bearings, enclosed in light alloy case
Valve Train: Overhead cam, one per bank, double chain drive
Power: 184 kW/247 hp (SAE net)/250 PS (DIN) @ 6100 rpm
Torque: 310 N·m/228 ft·lbf @ 4800 rpm
Engine speed limitation: 6700 ±20 rpm


[edit] Performance
Top speed: 162 mph (261 km/h), 159 mph (256 km/h) (Tiptronic)
0-60 mph: 5.5 s (manual transmission), 6.2 s (Tiptronic)
1/4 mile: 13.6 s (C2), 14.0 s (Tiptronic), 14.1 s (C4)
Co-efficient of drag: 0.32
Fuel consumption approx 24 mpg[vague]


[edit] Selected dimensions/capacities
Curb weight (to DIN 70020): 3,031 lb/1,375 kg (C2); 3,100 lb/1,406 kg (Tiptronic), 3,252 lb (1,475 kg) (C4)
Wheelbase: 89.4 in (2,270 mm)
Overall Length: 168.3 in (4,270 mm)
Width 65.0 in (1,650 mm)
Height: 52.0 in (1,320 mm)
Front Track: 54.3 in (1,380 mm)
Rear Track: 54.1 in (1,370 mm)
Ground Clearance: 4.7 in (US)
Fuel Tank: 20.3 gal (US)
Engine Oil: 20 L (21.1 qt US), oil change volume: 9 L (9.5 qt US)
Transmission Fluid: 3.6 L (3.8 qt US) (C2), 9 L (9.5 qt US (Tiptronic), 3.8 L (4.0 qt US) (C4)

993_Pilot

Do you have one of the BH wide body cabs ?

Edit: Nevermind, I read your signature now.

justin993

the more archaic suspension of the 964 may make it feel as if it has "more punch."

Martin S.

with some 964 cars...I can't pull them in a drag race. Regardless, cosmetically, I love my 993....but a clean 964 RS America is a sweet little car. And a 964 Cup Car...brutal...but also very expensive.

cafebisque

Jeff,

I wish I had a C2s cab. I saw one from the special wishes come up for sale last year, as I recall. I think no one even knew that a few were made. But it was all original. It looked amazing.

Alex
__________________

90 C2 Cab
97 C2S
91 Ferrari Testarossa
01 Lamborghini Diablo 6.0

Molly

I read some stuff here about cam timing on 993s being dodgey compared to on a 964 and it accounts for a lot of 993s being down on power. Some stuff about one mechanic who said a he sees tons of 993s he with incorrect timings that are way down from where they should be in power. Maybe it's more common for a 993 to be a little off. Who knows. I still like a 993 more.

1pcarnut

So, is this fixable in the 993?

Molly

They said you could set your timing right and get back to factory spec in HP but to make it where it lasts a long time you could retrofit a doohickey from the 964 onto the camshaft of the 993. The part actually came on early 993s and it allows better adjustment. Forgot the thread here but search for cam timings.

Bill Verburg

I'm ashamed of muself for dignifying the o/p w/ an answer but
some facts
from Auto,Motor & Sport
model, 0-100kph, 0-160kph 0-200kph standing 1km,top speed mph
964C2, 5.5, 12.9, 21.3,25.0, 164
964RS, 5.3, 12.2, -, 24.4, 161.5
993C2, 5.2, 12.4, 21.1, 24.7, 166
993RS, 5.1, -, 14.7, -, 172

race911

But to the real world (or real race track) point, as Martin said..........and I've been on both ends numerous times..........993 v. 964 whether it be Sears, Laguna, Thunderhill (god forbid Buttonwillow)..........it's MAYBE a car lengths difference on any of the front straights.

Wilder

Frankly, I think it depends on what 993 and 964 you're talking about. I have a fairly well modded 993 C4S with chip and short-ratio box. Last year, I did a group canyon drive with PCA and was driving behind an RSA with headers, cat-bypass and high flow mufflers (makes a big diff on 964s). I was very surprised at how hard that thing pulled at WOT. That said, I doubt a stock C2 964 can keep up with a stock C2 993.

race911

And I raced a car WITH a stock exhaust, catalytic converter and all, losing about 1.5 car lengths to Chris Cervelli in a (then) C class 993 at Laguna. (Obviously he was catching and passing me in practice, couldn't keep up with THAT car.) Anyway, it was the first race with the car in '02, and he even had the benefit of Hoosiers to my V700's or Michelins.