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In '77 it switched to 16s. 7s and 8s...

Old 10-03-2014, 10:11 AM
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Quote:
Originally Posted by jatooker1111 View Post
Those aren't stock seats either. You'll need to find some, which shouldn't be too difficult. Then source new leather...
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Old 10-03-2014, 02:33 PM
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According to my tech manuals Porsche didn't go to 16" until 1978 for the 930.
Sizes stated for the 1977 930 are 6&7x15 standard, 7&8x15 optional.
I have the part numbers if interested.
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'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
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Old 10-03-2014, 05:56 PM
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Here's the '78 factory service manual showing 16" wheels as standard for '77 and '78 930s. The winter tire options are noted as 15" wheels. I'd love to see factory documents stating otherwise. thanks

Old 10-03-2014, 07:08 PM
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Well there are plenty of '77 930 owners here on the board, they should know the answer. May depend on production dates.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 10-03-2014, 07:39 PM
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Well I happen to be a owner myself. Here's the '77 FSM update for the turbo and S. You're welcome to these documents to help you with the differences between the years. Well wishes.



Old 10-03-2014, 11:58 PM
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Looks like the tech manuals don't agree. Counting 14" winter wheels there may be 4 wheel options for that model year. I would be more interested in what wheels came on my car specifically than what the options were. Without a build sheet or window sticker that info is probably lost.
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'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 10-04-2014, 06:50 AM
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Quote:
Originally Posted by WPOZZZ View Post
Those aren't stock seats either. You'll need to find some, which shouldn't be too difficult. Then source new leather...

I may keep the seats, not sure yet. I'm not sure what they are from but they are elect and the leather is brand new with excellent craftsmanship .
Old 10-05-2014, 12:35 PM
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1977 was first year of 16 inch but some were 15 inch, it was pot luck which you got.
1977 had 1.5 boost guage, plus it was the first year with boost guage built into tach
some 77's had hand throttle carried over from prev year too
Air vents on dash was introduced ,Blapunkt Blamberg radio cassette was standard,
adjustable rear spring plates introduced, cuckoo clock spring introduced on clutch to keep tension,
All supposedly came with a power brake booster but ive seen some stock that don't,
The Rear spring plates were split with eccentric adjusting this hasn't changed either,
the Sway bar was backdated by factory to 74 models 20mm front and 16 or 18mm rear,
1977 were also first year using divalar studs
they also had different fuel injection and modified wastegate but I avent found out what at this stage,
77 Euros are 930/52@ 260hp, while us engines are type 930/53 at 234hp, I think there was also a 930/73 engine available which put out 590hp, like 77 cars it was a mix of old and new, Special order cars had 934 intercooler with the mechanical injection of the 935,
Also in 77 porsche introduced and raced the ;BABY, 1,400cc that put out close to 400hp
also in 77 Porsche won the world championship with a cis bosch twin turbo car, plexiglas rear window, they made 20 of these cars, I def wouildnt mind one of them extra turbo was used not for extra power but to improve throttle response yeehaa
Old 10-06-2014, 09:02 AM
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I try now to get parts for my 77 since 1 Year.

Its a hard job to get it done and find all the stuff you need.

The Front and rear fenders are not the same as 87.
They are Hand made and not made in one piece.

The Wastegate in 77 is standing and 75/76 is horizontal position to the front.

The Swaybar at the Front was also 77 horizontal position and at the 75/76 the same like the F Model and the 74/75 Carrera trough the Trunk
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Last edited by PTC930; 10-06-2014 at 12:31 PM..
Old 10-06-2014, 12:22 PM
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Quote:
Originally Posted by Robbbyg View Post
1977 was first year of 16 inch but some were 15 inch, it was pot luck which you got.
1977 had 1.5 boost guage, plus it was the first year with boost guage built into tach
some 77's had hand throttle carried over from prev year too
Air vents on dash was introduced ,Blapunkt Blamberg radio cassette was standard,
adjustable rear spring plates introduced, cuckoo clock spring introduced on clutch to keep tension,
All supposedly came with a power brake booster but ive seen some stock that don't,
The Rear spring plates were split with eccentric adjusting this hasn't changed either,
the Sway bar was backdated by factory to 74 models 20mm front and 16 or 18mm rear,
1977 were also first year using divalar studs
they also had different fuel injection and modified wastegate but I avent found out what at this stage,
77 Euros are 930/52@ 260hp, while us engines are type 930/53 at 234hp, I think there was also a 930/73 engine available which put out 590hp, like 77 cars it was a mix of old and new, Special order cars had 934 intercooler with the mechanical injection of the 935,
Also in 77 porsche introduced and raced the ;BABY, 1,400cc that put out close to 400hp
also in 77 Porsche won the world championship with a cis bosch twin turbo car, plexiglas rear window, they made 20 of these cars, I def wouildnt mind one of them extra turbo was used not for extra power but to improve throttle response yeehaa
Yep, I have a few friends that had concour 77 930s, both came with 15s.
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Old 10-09-2014, 06:59 PM
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Quote:
Originally Posted by Racerbvd View Post
Yep, I have a few friends that had concour 77 930s, both came with 15s.
1977 930 Turbos were all fitted with 16 inch Fuchs from the factory w/ Pirelli P7's. The '77 Turbos were only fitted with one type of gearbox vs. two options for '75 & '76's w/ 15 inch Fuchs (with or without Pirelli P7's, gearbox 930/30 or 930/32).
Old 10-09-2014, 08:13 PM
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Originally Posted by rlane930 View Post
1977 930 Turbos were all fitted with 16 inch Fuchs from the factory w/ Pirelli P7's. The '77 Turbos were only fitted with one type of gearbox vs. two options for '75 & '76's w/ 15 inch Fuchs (with or without Pirelli P7's, gearbox 930/30 or 930/32).
Well, Porsche did not always do everything as listed, as others have pointed out, not all the 77s (mostly early cars) came with the 16s. Seems Porsche had a habit of grabbing was was close, in some cases. A friend who purchased his 71 911 new, had both flat & deep sixes, just months apart, my 914-6 was undercoated at the factory, yet Porsche claims they didn't do that (one of the longest, going restoration arguments going among 914-6 owners and I know of one, who picked up his car, directly from the port, and it was undercoated, and he lost at Parade because of that, and the car was Brand new at the time) So to say all Porsches came a certain way, is incorrect, as some dealers were also installing 9X15s on 930s at the time.
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Many Cool Porsches, Projects& Parts, Vintage BMX bikes too

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Old 10-10-2014, 09:30 AM
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Great info thanks Gentleman. I am not a " porsche guy" but quickly becoming one!

Old 10-15-2014, 11:19 AM
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