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928 Euro-S vs 928GT Performance?

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Old 05-30-2018, 03:41 PM
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928man
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Default 928 Euro-S vs 928GT Performance?

Hi: I an old timer here, last posted in 2015, had to sell my 1980 Euro-S due to other expenses, now I might have the chance to get another Euro-S or 928GT, my Euro-S dyno was 312HP at the crank & light at 3150lbs, now I know
that the 928GT has 326HP, forgot it's weight, my car was very fast to 60mph, what could I expect with the GT? Comparing both 5spd cars? I also see a 1980 car with engine code M28 19, what engine is that? Any old timers out
there know the answers to the questions, sad to see my car go.
Old 05-30-2018, 05:51 PM
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hlee96
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Welcome back!
I haven’t driven a GT but I think it would be faster then an early euro s and maybe very close with a twin dizzy euro s.

The ‘80 euro s you’re looking at has an ‘84 bottom end done more than 10-15 years ago when it received a complete rebuild (forgot why when I spoke to the current owner this year”. Top end looks like it has all the euro s goodies (big intakes) but can’t be sure about the cams and plenum.

If I have a choice and ability, I would swing for the GT however the ‘80 euro s is asking for very little money!


good luck with your decision! Keep us posted
hoi
Old 05-30-2018, 06:04 PM
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Personally I'd take a EuroS of any flavor over a GT. Weight is a major penalty IMO and I prefer the simplicity of the early cars.

My automatic 87 weighs 3,555lbs on calibrated corner scales.


Other weight comparisons here:
https://rennlist.com/forums/928-foru...al-weight.html
https://rennlist.com/forums/928-foru...r-fiction.html
Old 05-30-2018, 06:13 PM
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Bigfoot928
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...

Last edited by Bigfoot928; 08-02-2020 at 11:05 AM.
Old 05-30-2018, 06:37 PM
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Rob Edwards
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My 5 speed 90 GT was 3505 on corner balance scales. I don't have an official number for an early Euro S but 3150 sounds a bit low to me given that a 'base' (no options) '78 5-speed curb weight is quoted at 3285 and the automatic was 3373 per the WSM, page 0.6.
Old 05-30-2018, 06:47 PM
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soontobered84
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You would notice the difference down at the low end of RPMs. S2 just doesn't have the same torque. Up on the cams, though, is very comparable IMHO
Old 05-30-2018, 06:55 PM
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Originally Posted by Rob Edwards
My 5 speed 90 GT was 3505 on corner balance scales. I don't have an official number for an early Euro S but 3150 sounds a bit low to me given that a 'base' (no options) '78 5-speed curb weight is quoted at 3285 and the automatic was 3373 per the WSM, page 0.6.
I pondered that too, just assumed it's not stock.

My 78 5-speed, sunroof delete, manual seats tipped the scales at 3325lbs

Compared to my 79 @ 3052lbs
Full tank of gas
5-speed, no sunroof
Roll bar, Recaro Pole Position seats with stock rails. 6-point harness, stock belts removed
Rear bumper bar removed, no rear seats, A/C & stereo removed
HVAC system still installed (blower, heater core etc..) however the head is blocked off, no coolant in heater core
Carrera III wheels with 235F / 265R tires
Old 05-30-2018, 07:08 PM
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Originally Posted by 928man
Hi: I an old timer here, last posted in 2015, had to sell my 1980 Euro-S due to other expenses, now I might have the chance to get another Euro-S or 928GT, my Euro-S dyno was 312HP at the crank & light at 3150lbs, now I know
that the 928GT has 326HP, forgot it's weight, my car was very fast to 60mph, what could I expect with the GT? Comparing both 5spd cars? I also see a 1980 car with engine code M28 19, what engine is that? Any old timers out
there know the answers to the questions, sad to see my car go.
I owned a Euro S (85 ) and a 90GT at the same time for many years and drove both back to back on many occasions. There is no comparison, a GT will smoke even the Twin-Dizzy Euro S, stock to stock. Plus the 90GT is much more refined by far, better brakes, and on and on. Hands down go for the GT, you will be very pleased.

Cheers,

Dave
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Old 05-30-2018, 09:44 PM
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Weissach
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The GT’s engine are under rated, the 80’s 16v euro engines have optimistic numbers. There is no comparison as far as speed goes. Besides the way better tranny, brakes, suspension, on the GT’s.. I would be looking at other factors. Things like price, condition, history

Last edited by Weissach; 05-30-2018 at 10:04 PM.
Old 05-30-2018, 10:19 PM
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LOL great choices here, you can't go wrong
Old 05-30-2018, 10:40 PM
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928man
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Default 928 Euro-S vs 928GT Performance

It's nice to hear from everybody after being away for 3 yrs, I recognize many of the names, is the guy from Austin Texas still on here, he had 10 or more 928's? I guess the issue really is what you prefer, I like the
simplicity of the Euro-S with light weight, the GT is nice, lots of torque but heavier. One car I left out was the GTS more power but heaviest of all. I have owned 4 928's in the past, the 86 w/late serial# w/automatic was the
smoothest running, but didn't have the speed. I had a 78' 5spd (#271) my first 928, simple but fast but still no where near the Euro-S 5spd in terms of higher speed acceleration.
I had a 1980 Euro-S automatic, pretty fast but never drove it very much, as it needed a lot of work.
HLee - which Euro-S are you talking about? I see a GT on ebay for $50K, it seems prices on the GTS models are thru the roof! They used to be in the $40k-70K range, today I saw one for $189,000, thanks but no thanks!
It seems as though the GTS prices are all over the map, I guess because of the low production numbers, Dave I remember your 86 Euro-S, a red one if I remember correctly. I guess the best solution is to get a GT and
a Euro-S, the GTS model prices being too high, and what ever happened to the 929 Porsche was supposed to come out with, up in smoke I guess! Unless Porsche comes out with a 2 door version of the Panamera,
a car they could have designed to look better than it does? It seems like the 928 is a forgotten car left to appreciate by the few of us, it was still not a mass produced car, never owned a 911, did have a 356SC many years ago.
Lastly 928SG - that is one nice car, what brand are those wheels?
Old 05-31-2018, 02:12 AM
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soontobered84
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928man,

You asked about a M28/19 engine. That engine was installed originally in the US version of the 83 and 84 model 928. It had L-Jet injection and developed a whopping 234 HP.

James Morrison in Austin had/has a bunch of 928s. He's still somewhat active with these cars as well as a lot of other things. I' sure that is to whom you were referring.

Considering that Porsche made changes basically every year to improve some facet of the 928, it would actually make sense that the GT would be most everyone's choice.

There are a lot of aficionados in your area. If you are interested in getting back into a 928, talk to those folks who may know where your next 928 is lurking.
Old 05-31-2018, 05:41 AM
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928cs
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Both are interesting cars, but very different.
Also, there are differences between the three years of production of the 928 GTs.

I have tested both a manual 928 S with an X-pipe and many stock 928 GTs (from 1989 to 1991) and it is impossible to compare the cars based on theorical data only.
The S may be the slowest, but some GTs are boring compared to it.

In short, find the cars and compare them side by side.

In general, a GT is more comfortable for big trips and has a better fuel consumption, but is also more complex so expensive to maintain.
Old 05-31-2018, 08:15 AM
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merchauser
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Also, there are differences between the three years of production of the 928 GTs.
928cs, can you expand on this a bit more??? curious, especially regarding performance thanks
Old 05-31-2018, 09:20 AM
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Easy.

Being schematic:
- The 1989 GT is a 1989 CS with more luxury.
- The 1990 GT is the same as the 1989 GT except with PSD, less costly rims, and a simplier electric system.
- The 1991 GT is the same as the 1990 GT except with a more assisted steering, and a better noise insulation.

In general, the older, the lighter, with the same level of equipment. The performance may be marginally better with a 1989 GT, but more important, the feeling could be different. Add nearly 30 years of use and there are no two identical cars!

Don't get me wrong, I love them all (in fact, I prefer a GT of any year over a manual GTS)


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