Impact bumpers & 964 decklids?

[Adam]

I've been inspired by Jack Olsen's superb conversion!

I'm wondering if anyone here on the list has an example of an impact bumper 911 (74-89) that is fitted with a 964 decklid with the retractable spoiler. If so, post a few pictures on Wayne's & Mark's Galleries!

Is it worth removing the Turbo tail? I'm starting to think it may be a little large for the back of a humble 2.7 CIS...

Regards,

Adam

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Adam Chaplin - 1976 911S Coupe

[CamB]

Remove the wing! It isn't clear from your pictures, but I had a (tea tray) turbo wing on a narrow body and it looks way better without it. The wing is too big for the narrow flares.

Don't forget to remove the front spoiler too (although you would be ok I guess if you had the 964 rising decklid).

My 2c

Cam

[JAE]

Adam,

Here is the impact bumper with a 964 spoiler.






The turbo is too much for me as my stock SC does not have the go to match the show of a turbo tail,IMO. I think a Porsche deserves a tail and this one seems to be a good compromise. My car did not get much attention pre-tail, but I am amazed at the comments with the tail. On the other hand, frankenporsche?

Additionally, my car felt very "sketchy" in high speed sweeping turns- front end felt light, not very "in control". Now it feels completely planted- maybe my imagination, but I don't think so as it's a big change.

Joe
'80 SC Targa

[epbrown]

JAE,
Re. the "sketchy" handling: Did you have the front spoiler in your pre-tail days? Having a front without the rear, and vice versa, can lead to that at high speeds. I had the same problem when I first got mine - it felt rather iffy doing 120 mph through TN on the ride home from buying it, and I mentioned it to some other SC owners I ran into. Personally, I'd have rather pulled the tail from my SC, but I ended up adding the front spoiler. My car's PO had a bit of all-show/no go in him - the engine's completely stock, but he added a whale tail and removed the 911SC script to add the "Turbo" script. Once I get it painted (for it's 20th birthday if I've still got it), I'll replace the rear decklid and lose the spoilers...

Emanuel

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Everybody wants a normal life and a cool car;
most people settle for the car." Chris Titus
1966 Rolls-Royce Silver Shadow
1983 Porsche 911 SC Targa

[This message has been edited by epbrown (edited 06-09-2001).]

[Jack Olsen]

Joe, that looks great!

I think the 964 spoiler fits well with any of the pre-89 rear ends -- although I personally think the spoiler itself looks kind of goofy when it's in the raised position. Then again, when it's up, it's doing its job. At 140 mph, looks are a lot less important than stability and grip.



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Jack Olsen
1973 911 T (3.6) sunroof coupe
jackolsen@mediaone.net

[This message has been edited by JackOlsen (edited 06-09-2001).]

[This message has been edited by JackOlsen (edited 07-15-2001).]

[Adam]

Joe!

That tail looks superb! I'm going to do it.

Funny how you should talk about stability problems. I took my car down to my parents' beachhouse this past weekend. I had a great run, not much traffic and I could sit on around 75 mph most of the way. (For about an hour).

I did find that the front end was reasonably lighter than it normally is. I guess around town you don't get to sit on 75 all the time. But during sustained higher speed, the nose was quite light. This got me thinking about changing the lid straight away.

It was the first road trip I've taken it on. I was surprised about the comfort and the fuel economy. Even chuffing along at 125 kmh/75 mph it only used about a quarter tank!

In regards to the tail/lid change, I might actually turn a profit as the demand for the turbo tails is very high here in Melbourne!

AC

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Adam Chaplin - 1976 911S Coupe

[Adam]

Just testing a new sig...



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Adam Chaplin - 1976 911 Coupe My Pelican Gallery Page
My Owners Gallery Page

[Adam]

Still trying...

[Adam]

Damn!

That's better

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Adam Chaplin - 1976 911 Coupe
My Pelican Gallery Page
My Owners Gallery Page

[hughsheehy]

With the 964 wings, have these all got the automotic raise and lower installed?

I/ve heard of a few that had a button to raise and lower, but how about one that works automatically?

Hugh

[JAE]

I'm not aware of anyone who has achieved full auto. Maybe more PITA than it's worth. But.... if you had cruise control, and you could tap into the computer- modify speed sensor output and actuator to deploy- at any set speed. That would be cool.

Joe

[Roland Kunz]

Hello

All factory wings do work automatically.

The 964 have a round knob and the 993 a switch to rise or lower the unit. Howver the electronic does overide the switch and the switch is to clean the part or to raise the unit if something fails. http://www.pelicanparts.com/ultimate/Forum3/HTML/010881.html

Grüsse

[This message has been edited by Roland Kunz (edited 07-15-2001).]

[Roland Kunz]

Hello

Using the original control unit is asimple task.
Only making a wire loom and to top it use the original colors and connectors are a bit heavy.

The connector on the control Box is soldered and the box is small as a cigrette box.

77 on speedos are electric and so direct hook up works and pre 77 needs a speedometer signal pick up ( 10 $ in germany for a usable GM part and some 50$ for a Motometer/VDO with adjustable frequency output to set the speed from the spoiler )

3 cables go to the switch one ground, one idiot light, one power, one ignition, and 5 to the wing.

964 control units run at 100-200 $ used the post 91 are more worth in germany as the rising speed was changed to 80 km/h. At 60 km/h everyone knew that you had been to fast in the city.


I allways like to do the full job and a wing not working like it should is like a car without a engine. Some people like to push there cars..........

Grüsse

[Adam]

Sounds like it's pretty straightfoward.

I bounced the idea around with an engineer friend of mine on the weekend and it seems easy enough.

The only snag is my mechanical speedometer.

AC

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Adam Chaplin
1976 911 2.7 Euro-spec Coupe (175bhp)
My Pelican Gallery Page
My Owners Gallery Page

[hughsheehy]

Another question....

I was looking back through the archives and had seen the aerodynamic comparisons of no wing vs carerra wing vs turbo wing. where does the 964 wing fit in that scheme of things? is it as good as, better, worse than the others? the surface area of the wing is a lot smaller than the carerra or turbo wings.

driving faster here in spain made me start wondering about a wing (in NL it was hardly needed), so for me the aerodynamics actually count. besides, i actually kinda like the carerra and turbo wings. my car has wide tires, so even the turbo wing would look ok. the PO also fitted a front air dam and removed the rear wing, so i guess i have the worst of all aerodynamic worlds at the moment, with wide tires, no rear wing and a front air dam. if i slide backways off the road on a fast turn i'll know why.. ;-)

hugh

p.s. i have NO intention of sliding backways off the road..

[Roland Kunz]

Hello

Just go shoping for a speedocable sender unit. You need the M22 x 1,5 screw on units.

They are mostly to find at places who install navigation equipment int cars.

( Search for VDO/Dytona 522i http://www.vdokienzle.com/pkw ).

The VDO/Motometer units are to long to fit behind the speedo except you angle the position some 30° off to the right. They will fit on the trany. The GM unit is half the size and much shorter and will fit behind the speedo if you have the rubber coupler speedo cable.

You also can use the VDO unit and delete your mechanical speedo by a electronic unit.

Now the 74 on California have a counter for the DOT and therefore a two part speedo cable and you just try to do the best from that.

General rule: It is all out there you only have to look and find and then puzzle togehter.

Grüsse

[BlueSkyJaunte]

Great, now you guys got me thinking about doing this too. Thanks a lot.

Am I going to be able to fit my stock A/C condenser under the 964 lid? I really need to keep my A/C capacity out here.

blue

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blue
'81 SC Targa

[Roland Kunz]

Hello

No the condensor will not fit and even the Denso compressor clutch front end scratches on the inner structur.

One solution for that is postet in one from the links provided in the recent long AC tread.

Grüsse

[hughsheehy]

I just read the June copy of the british magazine Porsche and 911 world. They have an article on 911 aerodynamics where they describe the various wings. While they don't do a side by side comparison of all the wings they mention that the 964 wing is not as effecive as the whaletail carrera wing.

So, i guess the turbo wing is the most effective rear spoiler (apart from the really fancy biplane wings)?

Hugh