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Topocalma
 
Join Date: Jun 2017
Location: Frankfurt Germany
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Early sports seats 930: When backrest lever to wheel change?

Hi,

I am slightly confused: When did Porsche start to introduce sports seats that featured a wheel for backrest adjustment for the Turbo Carrera?

When checking the web I gather:
  • in '75 and '76 the sports seats had the lever design
  • In '78 the wheel was prevalent
  • in '77 a lot of cars seem to feature the lever, but some also the wheel.

I am waiting for delivery of a '77 Turbo Carrera that has sports seats featuring the wheel and I am wondering if these are the original seats. The leather matches the rest of the interior in terms of looks and color fade (picture below).

On the web I gather that "MY 77" still had the lever, but I do find a number of 77 cars with sports seats with a wheel. The non-sports seats clearly had the wheel already in '77.

Maybe the change happened sometime during the MY77?

This very portal suggests that 77 - 84 had the wheel

Thanks for your help!

Best
Matthias

Last edited by Topocalm; 07-31-2017 at 01:11 PM..
Old 07-31-2017, 11:05 AM
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RDG RDG is offline
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77 should have the lever.
Old 07-31-2017, 04:45 PM
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RDG RDG is offline
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Im pretty sure 81 is the first year for the wheel style sport seats.
Old 07-31-2017, 04:47 PM
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This prior post by DRACO A5OG should help,

Quote:
Originally Posted by DRACO A5OG View Post


85-89
.
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Old 07-31-2017, 06:50 PM
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OK, but when did the plastic knob on the lever (early seats, 74, 75, 76) change from round to kind of oblong? My sport seats have the round knob in my 1976 930 but most seem to have the oblong version. Build date 10/1975.

Rahl

Last edited by 356911930; 08-01-2017 at 08:56 AM.. Reason: Edit to correct build date from 10/76 to 10/75
Old 07-31-2017, 07:21 PM
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Not sure exactly, but i can tell you for sure 78-79 are oblong, I thought only the early long hood sport seats had the round knob, but as you have a set with round in your 76 seems as least 76 and maybe 77 had the round knobs. Also could be a mid or end of year change. Allmost all the sets i have seen were oblong..
Old 07-31-2017, 08:33 PM
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Originally Posted by 356911930 View Post
OK, but when did the plastic knob on the lever (early seats, 74, 75, 76) change from round to kind of oblong? My sport seats have the round knob in my 1976 930 but most seem to have the oblong version. Build date 10/1976.

Rahl
Round knob was changed to the oblong knob for the 1976 model year (~9/75).
Old 08-01-2017, 03:38 AM
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I edited my post to correct the build date from 10/76 to 10/75. My car is #097, maybe just received the sport seats from excess inventory?

Rahl
Old 08-01-2017, 09:00 AM
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Quote:
Originally Posted by 356911930 View Post
I edited my post to correct the build date from 10/76 to 10/75. My car is #097, maybe just received the sport seats from excess inventory?

Rahl
That could be very close to the transition date. The first two preproduction U.S. 1976 Turbo Carreras (#0011 and #0012) had round seat back release knobs.

Is your '76 #097 RoW? If so, you should have a 930/50 engine.
Old 08-01-2017, 04:49 PM
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My '76 #097 is a US model with the 930/51 engine complete with original smog equipment etc. A must have for California. The Certificate of Authenticity shows: "US Equipment", Limited Slip Differential, Sport Seats - L/R, Electric Sunroof, Pirelli Tires, Light Yellow/B6 etc.

Rahl
Old 08-01-2017, 07:02 PM
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Quote:
Originally Posted by 356911930 View Post
My '76 #097 is a US model with the 930/51 engine complete with original smog equipment etc. A must have for California. The Certificate of Authenticity shows: "US Equipment", Limited Slip Differential, Sport Seats - L/R, Electric Sunroof, Pirelli Tires, Light Yellow/B6 etc.

Rahl
Are you sure your build date is 10/75? Even U.S. '76 #021 and #074 have 11/75 build dates?
Old 08-01-2017, 07:59 PM
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Pictures of my 1977 US 930 Turbo Carrera, original interior, sport seats, car #668 Build date 04/77


Old 08-01-2017, 08:06 PM
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Quote "Are you sure your build date is 10/75? Even U.S. '76 #021 and #074 have 11/75 build dates?"

Yes you are correct 11/75. That's what I get for sneaking onto PP at work.

Rahl
Old 08-01-2017, 08:53 PM
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Rdwinelover, we were talking about the lower lever by the door sill.

Rahl
Old 08-01-2017, 08:55 PM
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Ah. My bad.
Old 08-01-2017, 08:56 PM
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My '77 ROW 930 (originally delivered in Germany) has the wheel type adjuster for the backrest angle. I'm talking about the one at the intersection of the seat bottom and the backrest which adjusts the backrest angle, not the mechanism up towards the headrest that brings the seatback fully forward for access to the rear seat.
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Old 08-02-2017, 03:27 AM
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Quote:
Originally Posted by 356911930 View Post

Yes you are correct 11/75. That's what I get for sneaking onto PP at work.

Rahl
Ah...yes, by 11/75, they had transitioned to the square tilt knob for the seat back release. Perhaps someone replaced yours along the way with the earlier part. BTW, the round knobs are very difficult to find today but fortunately, VW seats of the same '74-75 vintage used the same tilt knob.
Old 08-02-2017, 03:44 AM
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Quote:
Originally Posted by lee88 View Post
My '77 ROW 930 (originally delivered in Germany) has the wheel type adjuster for the backrest angle. I'm talking about the one at the intersection of the seat bottom and the backrest which adjusts the backrest angle, not the mechanism up towards the headrest that brings the seatback fully forward for access to the rear seat.
Are you sure they're sport seats? The rotary seat back angle adjuster/internal bracket wasn't used on sport seats until they were re-designed by Recaro in mid-1980.
Old 08-02-2017, 05:23 AM
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^ +1

Rahl
Old 08-02-2017, 07:38 AM
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Quote:
Originally Posted by rlane930 View Post
Round knob was changed to the oblong knob for the 1976 model year (~9/75).
Interesting. I guess that means the seats in my 74 came out of a 76.
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Old 08-02-2017, 09:44 AM
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