917 performance needed [part2]

[Jille]

Hello Porsche lovers. A little while back, I posted a request for Porsche 917 performance/handling information. These data will be used in 917, that I'm making for a computergame.

Here's what data I still need to get a realistic in-game experience...

1. a skidpad number in G's ....for handling

2. a braking figure measuring the distance it takes the car to stop from 60-0, 80-0 or something like that

3. a top speed in any gear but 6th, and that gear ratio - even though 917s had different ratios for different races, I need just 1 example so I can reverse calculate the velocity to rpm numbers for the rest of the gear ratios

4. if the car understeers or oversteers and if it is mild or a lot

5. any written articles you may have found describing how the car drives


Oh, and before I forget to say: you can also reply with feedback on the car, or suggestions for it...

And, of course I just have to post a picture of the carmodel, driving some French roads...


To see a high-res version of it: check this link to see it.

[Jille]

anyone?

[Randy W]

917K (short tail) road tests with the data you are looking seem to be very hard to find, but I have some numbers compiled from several books including Peter Morgan's "Porsche 917 The Winning Formula", Boschen and Barth's "The Porsche Book", and Frere's "The Racing Porsches" :

Max power 580 to 630 bhp at 8400 RPM (for 4.5 to 5.0 L)
5 speed gearbox with LSD (locked at 75%)
Ratios: 15:29, 21:29, 23:24, 26:21, 30:21 with R&P 8:37
Four speed was also available
Rack and pinion 1.5 turns lock to lock, ratio 11.4: 1
Max speed in 5th 220 mph
0-62.5 mph 2.7 sec
Weight 800 Kg - distributed F 36.5/R 63.5%

Longtail Lateral G's 1.65 maximum
Longtail Braking Deceleration G's 1.5 maximum
Shotail is less

The handling seemed to be initial understeer with final oversteer, especially in the wet. For road tests without data try Road & Track June 1971 and October 1980.

Randy Wells

[emcon5]

What game are the screen shots from?

Tom

[911nut]

I believe that the screenshots are from the upcoming "World Sports Cars". It was supposed to be out in the summer of 2000.

[Jille]

well, it's for WSC as well, but the pics were take in Need For Speed 4

[Jille]

oh, just a question... what paintjob do you prefer for the car?

[Jille]

Originally posted by Randy W
917K (short tail) road tests with the data you are looking seem to be very hard to find, but I have some numbers compiled from several books including Peter Morgan's "Porsche 917 The Winning Formula", Boschen and Barth's "The Porsche Book", and Frere's "The Racing Porsches" :

Randy, thank you very much

Now the only things that are still needed are:

2. A braking figure measuring the distance it takes the car to stop from 60-0, 80-0 or something like that.

3. a sop speed in any gear but 6th

5. any written articles you may have found describing how the car drives

[5axis]

http://www.gunnarracing.com/


I would guess that they know a little bit

[Eric Coffey]

Here's are a couple more sites that might be worth checking out:

www.porsche917.com.ar/index_i.htm

www.porsche.com/english/motorsports/history/

Oh, and to answer your question, Jille: I personally prefer the classic Gulf/Wyer livery.

[Jille]

thanks for the links!

if you have any pictures like this one, but from a 917, I can use it as a guide for drawing a paintjob for the car...

[Zaphod32]

Jille,

I actually made a 3-page article of THE 917 (Herrmann/Atkins, number 23) to a Finnish magazine, but unfortunately (for you at least...) it's in Finnish language. However, I've shot zillions of pics of that particular car when it visited Finland. You'll find some of them compressed from my PCar site. Just go there -> in English -> Porsche Club Finland 30 yrs.

[Jille]

Zaphod32 thanks
Maybe you can send the article to me, so I can translate it (using a translator-tool)... ?

my email address: jille_b@zonnet.nl

[Zaphod32]

For narsist me
I'll let everyone enjoy the article...
(appx. 200 kb per page)

They are located in:

http://www.lastentarvike.fi/917_1.jpg
http://www.lastentarvike.fi/917_2.jpg
http://www.lastentarvike.fi/917_3.jpg

[Jille]

wow, thanks a lot!
let's see if I can translate it

[Jille]

damn... it's harder than I thought, but I've got some peeps helping me out now

[Paul Franssen]

Goeie dag Jille,
On the motto "every little bit helps", let me translate from a French language article on the "psychedelic" Martini 917 which finished 2nd at Le Mans in 1970 (long-tail model)(no. 23 Hermann/
Attwood won the race).
"...rather vicious roadholding, with only the braking at a same level of performance as the engine..." "...scary to some drivers..."
"difficult to master, the 917 was a car of which the engine power was often ahead of the qualities of the chassis" "the long tail model ... faster .... but more delicate roadholding in rain"

It ain't much, but it's all I got.

[Jille]

Dank u Paul