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928 "Series" Terminology Explained

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Old 10-28-2018, 06:49 PM
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GT6ixer
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Default 928 "Series" Terminology Explained

Ok so unlike the title, I can't explain the 928 "series" terminology but through this thread hopefully it will eventually be worked out. Or not. Because I don't think Porsche ever officially used "S1", "S2", "S3, etc. That means these labels are tribal and possibly open to interpretation but perhaps solidified by consensus.

I've heard the OB's being referred to Series 1, but where does that leave the early 928S model? As the S2? No because that's the '85 and early '86 5.0L US model right? But wait aren't the Euro 4.7L cars the S2s? And what about the '89 to '91GTs? Are those S5s with the GTSs being S6s? I don't think so because I've never heard of any 928 being referred to as an S5 or S6. But why not? What's the point of unofficially creating different series types only to stop at the S4?

Ok so what do you guys think? How do you breakdown the different "series"?
Old 10-28-2018, 06:57 PM
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77tony
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Nate, Most can't even agree on what an OB is and you start with this^^ T

https://rennlist.com/forums/928-foru...6-term-ob.html

https://rennlist.com/forums/928-foru...-of-an-ob.html
Old 10-28-2018, 07:34 PM
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Haha. Yeah Tony that's a whole other ball of wax!

I startted thinking about this after seeing Magnus Walker refer to his newly aquired OB as a " 79 - S1" on Instagram. I was about to reply to his post to point out that an OB isn't an S1 because, for one I've never seen anyone use the "S1" terminology, and two an OB can't be the first S because the 928S model was the first S. But then I realized I didn't really know what the heck was what so I didn't reply at all. So instead I thought we could all argue it out here.
Old 10-28-2018, 07:50 PM
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Wisconsin Joe
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Well, first off, there's a difference between "Series 1" and "S".

One is a designation of the 'place in history', the other is Porsche's designation for 'better'.
Porsche has always used "S" to designate upgraded cars. Often released a few years after the original car.

My understanding:

928 - OB 78 & 79. Plus Euros through 83 and US through 82.

928S - 80 - 83 Euros with the 300 hp M28/11 &12 motor, US 83 & 84. This would be the "S1", but the "1" is sorta redundant.
This was an official Porsche designation.

928 S2 - 84 - 86 Euros with the M28/21 &22 "Twin Dizzie" motor.
The UK delivered cars were officially called "S2". None of the cars delivered anywhere else in the "RoW" were officially called "S2", even though the cars were almost identical.

928 S3 - 85 & 86 (includes 86.5) North American cars with the original 32v motor and the "Pipe Organ" intake. There were some cars delivered to some RoW markets in this configuration.
Never an official designation from Porsche

928 S4 - 87 - 91, US & RoW markets. This was the first model since 79 where the US & RoW cars were virtually identical.
Official Porsche designation.

928 GT - 89 - 91. Manual trans, upgraded motor and a few other goodies.. S4s after 89 were all auto trans.
Official designation. I'm not aware of any other model (other than the Carerra GT) that has a 'GT' designation. There are only a few other Porsches with a "GT" designation.

928 GTS - 93 - 95 (RoW also 92). Bigger motor, 'hips' on rear fenders, a few other goodies.
GTS is Porsche's designation for the highest performance, normally aspirated (non-turbo) variant of the model.

Edit to add: Your post about Magnus Walker came up while I was composing this.

His 79 could be called a "series 1", but I've rarely heard that term used by anyone who knows the 928.
It is not an "S".

Last edited by Wisconsin Joe; 10-29-2018 at 11:53 AM.
Old 10-28-2018, 08:42 PM
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Originally Posted by Wisconsin Joe
Well, first off, there's a difference between "Series 1" and "S".

One is a designation of the 'place in history', the other is Porsche's designation for 'better'.
Porsche has always used "S" to designate upgraded cars. Often released a few years after the original car.

My understanding:

928 - OB 78 & 79. Plus Euros through 83 and US through 82.

928S - 80 - 83 Euros with the 300 hp M28/11 &12 motor, US 83 & 84. This would be the "S1", but the "1" is sorta redundant.
This was an official Porsche designation.

928 S2 - 84 - 86 Euros with the M28/21 &22 "Twin Dizzie" motor.
The UK delivered cars were officially called "S2". None of the cars delivered anywhere else in the "RoW" were officially called "S2", even though the cars were almost identical.

928 S3 - 85 & 86 (includes 86.5) North American cars with the original 32v motor and the "Pipe Organ" intake. There were some cars delivered to some RoW markets in this configuration.
Never an official designation from Porsche

928 S4 - 87 - 91, US & RoW markets. This was the first model since 79 where the US & RoW cars were virtually identical.
Official Porsche designation.

928 GT - 89 - 91. Manual trans, upgraded motor and a few other goodies.. S4s after 89 were all auto trans.
Official designation. I'm not aware of any other model (other than the Carerra GT) that has a 'GT' designation.

928 GTS - 93 - 95 (RoW also 92). Bigger motor, 'hips' on rear fenders, a few other goodies.
GTS is Porsche's designation for the highest performance, normally aspirated (non-turbo) variant of the model.

Edit to add: Your post about Magnus Walker came up while I was composing this.

His 79 could be called a "series 1", but I've rarely heard that term used by anyone who knows the 928.
It is not an "S".
Good stuff there Joe. Thanks! So does this mean that Porsche built non S and S model Euros betwee '80-'83?
Old 10-28-2018, 08:43 PM
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Originally Posted by Wisconsin Joe
Well, first off, there's a difference between "Series 1" and "S".

One is a designation of the 'place in history', the other is Porsche's designation for 'better'.
Porsche has always used "S" to designate upgraded cars. Often released a few years after the original car.

My understanding:

928 - OB 78 & 79. Plus Euros through 83 and US through 82.

928S - 80 - 83 Euros with the 300 hp M28/11 &12 motor, US 83 & 84. This would be the "S1", but the "1" is sorta redundant.
This was an official Porsche designation.

928 S2 - 84 - 86 Euros with the M28/21 &22 "Twin Dizzie" motor.
The UK delivered cars were officially called "S2". None of the cars delivered anywhere else in the "RoW" were officially called "S2", even though the cars were almost identical.

928 S3 - 85 & 86 (includes 86.5) North American cars with the original 32v motor and the "Pipe Organ" intake. There were some cars delivered to some RoW markets in this configuration.
Never an official designation from Porsche

928 S4 - 87 - 91, US & RoW markets. This was the first model since 79 where the US & RoW cars were virtually identical.
Official Porsche designation.

928 GT - 89 - 91. Manual trans, upgraded motor and a few other goodies.. S4s after 89 were all auto trans.
Official designation. I'm not aware of any other model (other than the Carerra GT) that has a 'GT' designation.

928 GTS - 93 - 95 (RoW also 92). Bigger motor, 'hips' on rear fenders, a few other goodies.
GTS is Porsche's designation for the highest performance, normally aspirated (non-turbo) variant of the model.

Edit to add: Your post about Magnus Walker came up while I was composing this.

His 79 could be called a "series 1", but I've rarely heard that term used by anyone who knows the 928.
It is not an "S".
+1

Thanks for the clarity. I've wondered about this for some time, but did not dwell on it long enough to try to pin it down.
Old 10-28-2018, 09:12 PM
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I’m gonna sit here and watch(*).

Whateveryaw’ll come up with, just make sure the nomenclature is as complicated as what Porsche does for 911s these days

(*) actually not. I’m gonna go out to the garage and change a sunroof seal.
Old 10-28-2018, 09:42 PM
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Check Wikipedia - I believe that some Rennlisters e.g. Vilhuer have contributed to the article.

https://en.wikipedia.org/wiki/Porsche_928
Old 10-28-2018, 10:39 PM
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Wisconsin Joe
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Originally Posted by GT6ixer


Good stuff there Joe. Thanks! So does this mean that Porsche built non S and S model Euros betwee '80-'83?
Yes. "S" models had the 4.7, 300 hp motor. "Non-S" had the 4.5 at something like 240 hp.

That is the only time that both S & non were available side by side.

Also (random thoughts), there were the CS & CE produced. Both were very limited production. Samuel (928cs) knows the CS model the best. Erkka (Vlihur) and Rob Edwards are probably best for the CE.

And there are "GT2" & "GT3" 911s & Caymans out there. My understanding is that they are race prep cars, where the 928 GT was just an enhanced performance manual car.
Old 10-28-2018, 11:51 PM
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Originally Posted by Wisconsin Joe
And there are "GT2" & "GT3" 911s & Caymans out there. My understanding is that they are race prep cars, where the 928 GT was just an enhanced performance manual car.
There are GT2, GT2RS , GT3, GT3 RS and GT4 50-state and RoW road-legal 911s and Caymans. I would classify these as 'gentleman's track day' cars. While the GT3 and GT4 Cup Cars are race prepped and not road-legal.

(Yeah, finished the sunroof seal a while ago...)

Old 10-29-2018, 01:35 AM
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Also (random thoughts), there were the CS & CE produced. Both were very limited production. Samuel (928cs) knows the CS model the best. Erkka (Vlihur) and Rob Edwards are probably best for the CE.
I'm pretty sure Roger knows more about the SEs than anyone, since he owns one. [/jealous]

That aside, I like Joe's descriptions of all the series. I guess you could add the Jubillee and Weissach editions, but they were not materially different from any other 1982 Euro S 5-speed or 1982 US base model car respectively, the 'special' options package notwithstanding.
Old 10-29-2018, 03:51 AM
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and don't forget about the 928SG
Old 10-29-2018, 03:56 AM
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In my simple world there was the 928, then they produced a ‘S’ sport version (S1), after that they produced S2, S3 and S4 they are all 928 sport series cars....
Old 10-29-2018, 10:04 AM
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Keep it simple

OB 77-81 US
SOB 82-84 US
S3 85-86
S4 87-91
GTS 92-95

Old 10-29-2018, 11:35 AM
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Wisconsin Joe
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Originally Posted by worf928
There are GT2, GT2RS , GT3, GT3 RS and GT4 50-state and RoW road-legal 911s and Caymans. I would classify these as 'gentleman's track day' cars. While the GT3 and GT4 Cup Cars are race prepped and not road-legal.

(Yeah, finished the sunroof seal a while ago...)
Thank you for the clarification.

I'm not super informed on those cars.

Is there any Porsche other than the 89 - 91 928 GT or Carerra GT that is designated 'just' a GT?


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