How fast is my Porsche

TSwede · 03-01-2002, 04:30 PM

The reason I ask is everything I fin tells me that the 1975 911 2.7 S does 0-60 in 7. something seconds, but i found one reference to it doing this in 6. something seconds - I'm now getting fed up with trawling the 'net trying to find out just what performance differences there are between euro spec cars an others - also which are ROW an which are Euro and is this the same thing?

Mine is a 1975 Euro (from Germany) 2.7s - can anybody person out there tell me the actual specs for this as I keep finding references to what I think are US cars etc.

Best regards

PS if it isn't fast enough on paper I'm going to put a Chevvy V8 in it. (just kidding - but there is a site on the internet for a company that is doing this for a living!) Also no replies to my alternator query yet! - any ideas????

Tony

Saffs · 04:48 PM

Autocar (UK) got the Euro 2.7 911S (the straight 911 2.7 is slower) going 0 to 60 in 6.1 secs. and a top speed of 141, I think. The figures on the Pelican site are similar:

--+--------------+------+----+-------+----+---+----+--------------+-----------
| |induc-|0 to| Horse | |top| | |
Yr| Model/Disp |tion | 60 | power |trq |spd| wt | price |
--+--------------+------+----+-------+----+---+----+--------------+-----------

74 911 2.7 K-Jet 7.9 150 175 130 2303 4.8 11.1 19.9
74 911S 2.7 K-Jet 6.1 175 175 140 2303 4.4 10.7 20.0
74 Carrera 2.7 (c) 8.5 175c 175c 131 2303 10.0 17.7 49.5
74 RS 3.0 . . 230 201 . .
74 RSR uk 3.0 . . 315-330 . . .
74 RSR Turbo 2.1 . . 480 . . .

75 911 2.7 K-Jet 7.9 150 175 130 2303 4.8 11.1 19.9
75 911S 2.7 K-Jet 6.1 160d 166d 140 2303 4.4 10.7 20.0
75 Carrera 2.7 K-Jet 8.5 165e 166e 131 2303 8.5 16.1 22.9
75 930 3.0 . 5.8 260 253 152 .

Actually, Tony, if look at the service history there, the '70s Autocar with the figures is in there - it's my old car, everyone else.

Porsche factory figures were often very conservative, and road tests get closer to the truth. The US 2.7 is slower than the ROW one BTW.

TSwede · 03-01-2002, 04:46 PM

BTW - where are the figures on Pelican Parts - I couldn't find any - but I was rushing.

pwd72s · 03-01-2002, 04:54 PM

T swede? Don't worry about this so much...by today's standards? BOTH of us drive pretty tame cars. Bottom line is whether or not we enjoy the drive. I do.

Saffs · 03-01-2002, 04:58 PM

Absolutely, Paul.

Here's the page with figures on:
http://www.pelicanparts.com/911/technical_specs/911_guthrie_faq.htm
It's at the bottom.

DANNOV · 03-01-2002, 04:59 PM

The Jan. 15, 1977 issue of Motor had a test of a 2.7 911. The results are as follows:
0-30 2.8
0-40 4.0
0-50 5.6
0-60 7.2
0-70 9.8
0-80 12.3
0-90 15.2
0-100 19.4
1/4 mile 15.7 91 mph

In Dec . 17, 1977 issue of Autocar, they tested a 1978 911SC with 3.0 engine.
The 0-60 time was 6.5 and the 1/4 mile was 15.1 sec 94 mph. Toi confuse matter further in the june 25, 1977 issue of Motor, they also tested the 911SC 3.0 and got 0-60 in 5.7 sec and 1/4 mile in 14.5 sec at 98 mph.

These are UK magazines, I'm assuming that a 911 Euro is the same in UK as on the continent.

TSwede · 03-01-2002, 05:05 PM

It's not so much that I'm preoccupied with this - I am more concerned about the wildly differing results etc. I've now found 6.1 - 7.2 - 7.5 - 8.5 all for the same car.... is this the same for all models - are they all wrong or are some right.... or does it all depend on the weather!!!!

Tony

Also - Saffs - no Autocar thingy here dude!

pwd72s · 03-01-2002, 05:22 PM

T Swede? My apologies...my stock'72 would smoke most '74-'77 USA equipped cars. But just think about it...do you enjoy the DRIVE???
That is really the bottom line, and the point I originally tried to make...

TSwede · 03-01-2002, 05:26 PM

I won't enjoy the drive till I know it's faster than a Vauxhall Nova (UK Joke)

But seriously... I love it.. but part of the fun of ownership is being able to tell those who ask and knowing that you're telling them the right thing - not giving them a choice of three replies...

And DON'T tell me you don't get asked!

Swede

Saffs · 03-01-2002, 05:37 PM

Quote:

Originally posted by DANNOV

These are UK magazines, I'm assuming that a 911 Euro is the same in UK as on the continent.

I think they are the same, indeed. The '77 2.7 was known to be a little slower than the '75, I think. It's all down to the car and the testers on the day - and some cars just are quicker, or slower, than others, it seems.
Tony, how about getting a stop watch and timing it - a nice old Heuer? - Kurt B here is somewhat of an expert on timing his 0 to 60s. Maybe he'll chip in.

Kurt B · 03-01-2002, 05:40 PM

the lower numbers are the most accurate. The high numbers generally come from Porsche, and in 1975 and since, they did all those tests at half load capacity--with half of the permissible weight in the car, and they didn't push the cars too terribly much because most cars back then weren't that fast. So with little effort at half load capacity, they achieved those numbers.

Mine is 6.3 in the book, but 5.8 in magazines at the time. My own tests are below (after some modifications)

pwd72s · 05:42 PM

Oh yeah..I often get asked. I usually give the CAR & DRIVER numbers, because they were the fastest magazine numbers for the 2.4 S. They were also notorious for having the test drivers most likely to flog cars to death...back then.

TSwede · 03-01-2002, 05:41 PM

I've got an old Heuer stop watch - car boot sale spacial.... I'll do it tomorrow - anyone got any advice about how to do this without ending up in a tree.... I'll post the results over the weekend. I don't want to to take a passenger as it slows me down....

Swede

Erakad · Erakad's Garage

This brings up a good question. I too have a "grey market" Euro 911 (83 SC, looked up the VIN). Do you just "assume" it's the higher HP or is there a way of actually telling??

Joe Bob · Joe Bob's Garage

Look at the engine code on the block....near the oil sender. It is near the engine serial number....

If it says 930/10....you have a 204 hp euro motor....

03-08 are 180 hp....
09-188hp....
11-17- 180 hp

Hope that helps....

Z

widebody911 · widebody911's Garage

Like this!

g-tech

Quote:

Originally posted by TSwede
I've got an old Heuer stop watch - car boot sale spacial.... I'll do it tomorrow - anyone got any advice about how to do this without ending up in a tree.... I'll post the results over the weekend. I don't want to to take a passenger as it slows me down....

Swede

03-02-2002, 01:12 AM

Talking acceleration times on older 911s I think there are 2 ways:

1. (that's me): Poor but caring owner of slightly tired old 911 who's afraid of expensive repairs. SLOW in other words.

2. The test driver - it's not my car and I don't have to pay for repairs and tires so I'll reach 5 seconds from 0-62 mph 9 out of 10 times.

I think 7.5 seconds from 0-62 mph seems realistic for a 175HP 2,7S. Maybe 7 seconds if you're a test driver

andymin · 03-02-2002, 02:02 AM

i've had passengers time this a few times, pretty much always around the 6 seconds mark, hard to tell within tenths of seconds measuring by hand

andy

77 carrera 3.0 (uk)

actually owned a B registered nova (85) once, walked out of my job, handed the company car keys back, needed a car badly so went out and bought it for 200 quid ($300)

0-60 in 20 secs ;-)

JackT · 03-02-2002, 05:28 AM

Seems to me that if a 911 was a 0-60 kind of car it would have had a totally different type transmission, or at least shifter. The technology was there in the 60's, 70's and 80's to have transmissions and shifters that were smoother and quicker from 1st to 2nd gear. I wonder what the 0-60 times would have been with, for instance, a Muncie transmission and a Hurst Shifter, if it could be fitted. There has to me a good bit of lost time with the Porsche transmission from 0 to 60.

cegerer · cegerer's Garage

I'm putting 10 bucks on a "Strange Noise and Smell from Clutch" thread being posted within a couple of days ..... -- Curt