Not a great pic, wil look for a better one:

http://www.toadhallracing.com/toad-156.jpg

GFK Aluminum might be in reference to the Aluminum trailing arms that were covered in a layer of GFK. I saw an SCRS in person several years ago at a tech day at EPE in Mass. It was up on the lift so we got a great look at the underbelly. It was interesting as there were several subtle differences from my 82 and friend's 86, though for the life of me I can only remember the covered trailing arms :)

Best regards,

Michael

So I still can't definitively ascertain if the SC/RS had torsion bars, coil overs, or both. I've heard varying explanations concerning this.

Here is a picture of an SC/RS (in front of the 959 Sport) that lived with us for a few months while we fixed a whole host of issues.

Totally amazing car that I would LOVE to own. :)

http://forums.pelicanparts.com/uploa...1193419756.jpg

Thanks Bill.

Do you know the conditions for the open grill vs. closed?

"GFK Aluminum might be in reference to the Aluminum trailing arms that were covered in a layer of GFK."

Yes - I was thinking of that too. They stuck some GFK or some sort of plasticky matting up under some body panels also if I recall correctly. I've only seen pics, and never had a chance to take an ice pick to the real thing (so to speak)...

HI dd74
some info from the 954 parts manual for you .

rear torsion bar sizes
http://forums.pelicanparts.com/uploa...1193427321.jpg

rear shock's
http://forums.pelicanparts.com/uploa...1193427349.jpg

parts for rear shock's and the springs/parts to fit with no location No'
http://forums.pelicanparts.com/uploa...1193427377.jpg

regards mike

johndglynn:

Not to be argumentative.....but I did freeze frames of the Youtube clip from 1:43 thru 1:47...and was looking especially closely nearer the 1:44-1:45 time frame shots, and please show me the faint rubber line that we're talking about. These freeze frames ( especially at 1:45) show a lot of detail underneath the RF area of the car and the spoiler..if it exists ( I personally still don't think so)...it must then be cut back to near ineffectiveness as we go towards the center. Certainly not as visible as it would normally be on a 930 from such a view. Understand that I'm not saying this is the case with all SC/RS...just this particular YouTube car.

If it takes this kind of super-close scrutiny to even tell that there is full width rubber lip spoiler on that car...my statement still stands that it is remarkable how seemingly stable this YouTube car is...when for the rest of us we need an obviously visible spoiler to counter-act the rear Carrera wing.

All in all....a remarkable car and one that will likely be seen in the future as the "decade-later" version of the much vaunted and venerable 2.7 RS / 2.8 RSR.


EDIT: for those of you who are viewing this clip directly from the link...the timer is counting backwards and the key freeze frames then become -.41 thru -.37

John... I will admit that the more "head-on" shot of the car coming down the straight gives a faint hint of an across-the-car black line...that may be a spoiler.... but it too seems like it doesn't connect to the corner pieces as it should.

Beginning to sound like the Warren Commission reviewing the Zapruder film:D

Dueller...I'm glad it's being taken the right way...and not as an argument ( only searching for the "truth" doncha know).....

especially noteworthy coming from "dueller".... :) :)

Cheers,

Wil...here is a different video I posted earlier of the same car I think..

don't know how to imbed it

http://youtube.com/watch?v=pEDQaOwZ6Hc&mode=related&search=

<object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/pEDQaOwZ6Hc&rel=1"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/pEDQaOwZ6Hc&rel=1" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>

Just figured it out!!!! Same car/track but a few different scenes:D

Nice find...... I think I need to grudgingly admit there is a spoiler under there somewhere...but it must sit WAY back from the front edge of the lower valance....

Mate, it is using the race intake so maybe it is ex-race and not using the full spoiler, just the side flashes. When you know how that rubber strip is secured and how easily it flexes, it's hard to imagine that it's not bent back at full-whack test-bowl speeds like that.

The vid is probably best described as 'inconclusive' - though I think I see it in a few shots, I agree it is impossible to see anything in others.

The 954 parts list says it's a 911 512 010 07 part number which is the same as used on the 77 Carrera and the 80 Weissach.

I have one with that part number I am refinishing and it is most certainly not the 3.2 Carrera tail. It is a single grill, not the double grill tail of the same shape from the late 70's turbos.

But to be fair, a lot of the pictures I have seen do show the 954 with the 3.2 tail:confused:

I took a look at a photo in Excellence (the later, three volume set) and it shows a lip spoiler similar, if not identical, to that used on the turbos and turbo-look cars of the period.

For what it's worth...

JR

So then, is the bumper/valence piece a complete one off, or is it similar at all to another one. I at first thought maybe it was a Carrera valence without the fogs, but someone quickly pointed out that that was wrong.

Complete one-off mate. Way different to a 3.2 valance.

Brendon, I've seen some pics of a Bastos SC RS from back in the day and it definitely has a small-grille C3 tail fitted (as in two grilles, one big one small), but the street cars were sold with the 3.2 thing and I have never seen a Rothmans or a plain-clothes car with a C3 tail. The 3.2 is the obvious choice for rally boys IMO. There is another tail you sometimes see fitted that is a one-piece FG 3.2-tail-a-like but I dunno what that part number is. Another thing to look at next time I see one.

The first Turbos used what I would call a small-grille C3 tail, and late 70s Turbos used a big-grille C3 tail - I have one on mine. Never seen one of these big-grille ones on an SC RS.

That's what I'm sayin'.....normally...for all the other pics of SC/RS cars I've seen, this is true. This doesn't seem to be the case with the YouTube car.

Johndglynn...there is no doubt you have done a lot of research and understand these cars, and so have I. Look at my posts within the other pelican threads on the SC/RS and the references I cite about this car. That said, please don't speculate that the youtube car has a race front end with the lip spoiler folded back due to speed. That would not make any sense. The spoiler, if it exists, is the same piece as the Turbo , and is hefty enough not to fold back at speed. I doubt Porsche would have let such a design through. SmileWavy

Nothing wrong with a bit of speculation Wil - we can speculate, get some ideas going and then I can go ask the guys who used to rally them and the guys who still own them. That is how I have learned a little bit about these cars and how it usually works for me, but sorry if it upsets you. I was trying to follow your line that there is nothing there with my speculations - maybe there really isn't anything there, in which case why would that be?

I meant maybe it is ex-race, with a race/rally front end with just the side extensions and not the undervalance lip, not that the lip on a race front end was bending back on a race front end. The flexing was a diff idea regarding street versions:

The YouTube car is shifting and looks to have diff ratios to a rally car to me (this is speculation). If the edge of the fibreglass SC RS valance tilts back at speed, and the chin spoilers are just bolted through the lip, then maybe it does have a slight tuck to it, not neccessarily folded back (speculation). I don't think they would have tested the rally cars and that bespoke front end on a high speed bowl, as rally cars just don't get to those mega speeds, but this is more speculation. I can ask some people who might know.

When you see old pics with the fronts smashed off, there don't seem to be any ribs from the front panel to the valances, so they might be unsupported in the centre and maybe the bottom edges can flex at 150+. I will have a look next time I am near one. If the spoiler with the rubber lip was so effective, why would they have gone on to make the whole thing in one-piece form, maybe they wouldn't. It is just an idea for further investigation, nothing wrong with that.

I've kind of lost interest now but I enjoyed it! Cheers.