jrgordonsenior wrote:Porsche's never have more TQ than WHP, yet about half these cars show more TQ.
Never??? That's quite a generalization, and might hold up better with the newer models, or race engines, but not with the older, air-cooled street cars. According to my Porsche tech spec books, the 911SC 3.0 engine is rated at 172 SAE net HP (180 DIN) and 189 ft. lbs. of torque (257 Nm). The early 930s were rated at 265HP and 291 ft. lbs. torque or 245/253 for the US spec. The 3.3 turbo was 300HP/321T in the Euro version, and 282HP/287T in the USA. The 1968-9 911T was rated at 110HP and 116T. The '70-71 911T was 125HP/130T. The '72-73 911T w/ MFI was rated at 140HP/148T. The 2.7 CIS engine in various configurations for smog purposes was 150HP/173T, 175/175, 165/167, 165/176, and 160/162 (Type 911/41-48 and 911/84-86). There are others as well with higher torque than HP.
Am I reading it incorrectly?
Well, I can't vouch for how the numbers were transcribed onto that chart because I wasn't there for that, but I do see a few errors--where is SG's silver '79SC (ex-Hector car), for instance? Also, Greg's '82SC is a custom 3.2L short-stroke, built from the original 3.0L, George Taylor's engine is a 3.4 built from a 3.2L Carrera engine, not a 2.7L, mine is a Type 930/10 3.0L not a 2.0L, so it is certainly possible that some of the power numbers were transcribed incorrectly, too, I don't know. But putting that aside, let's throw out the 2 big-bore V-8s (the Z06 and the GTO) that might be expected to generate big torque numbers, and the BMW, because it is a non-Porsche. That leaves 14 P-cars, only 5 of which registered higher torque figures than HP. Of these, 4 out of the 5 are (or were custom-built from) engines I listed above having factory specs of lower HP than torque. The only real anomaly I see is the 1971 911E, which is rated by the factory at 155HP and 141 ft.lbs. w/ stock MFI induction. The readings it shows of 113HP and 117T are way out of spec, and not in a good way--I would suspect something is wrong there if the numbers were measured and transcribed correctly--either poorly executed mods or bad tuning. It should be making at least 130HP at the rear wheels. The first thing I would check is whether the throttle linkage is opening up the butterflies completely.
That's my $0.02,
TT
Posted: Sat Jan 14, 2012 9:34 pm
