Does 991 Cup have a Metzger engine?
Does 991 Cup have a Metzger engine?
Author
Discussion

Murcielago_Boy

Original Poster:

2,014 posts

268 months

Tuesday 19th November 2013
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As above gents?

DiscoColin

3,328 posts

243 months

Tuesday 19th November 2013
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Yes

[Before a pedant arrives - Mezger, not Metzger wink ]

Murcielago_Boy

Original Poster:

2,014 posts

268 months

Tuesday 19th November 2013
quotequote all
Cheers! smile

So next question, why doesn't the 991 GT3 have it?

DiscoColin

3,328 posts

243 months

Tuesday 19th November 2013
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There are surely many reasons, but the main one is that it is brand new and so far unproven. Note that the 991 Cup was available some time before the road GT3 so when the Cup was launched the 9A1 derivative wasn't even available. The old engine remains homologated for a number of years yet in most international series (even though it is fitted in the new chassis) so really it is common sense for them not to switch the racing cars over immediately.

sidicks

25,218 posts

250 months

Tuesday 19th November 2013
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My limited understanding is that there are also significant changes planned / proposed for this series and so Porsche didn't want to expensively homologate a new engine which may have then been immediately non-confirming with changed regs..

No idea how true this is.?!

mollytherocker

14,460 posts

238 months

Tuesday 19th November 2013
quotequote all
Murcielago_Boy said:
Cheers! smile

So next question, why doesn't the 991 GT3 have it?
I think that they have said that the mezger is nearing the end of its potential development and so now is the time to pension it off.

However, the real reason is that it is too bespoke and expensive. The new one is designed to be built on the same line, shared parts etc etc.

mm450exc

571 posts

207 months

Tuesday 19th November 2013
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mollytherocker said:
I think that they have said that the mezger is nearing the end of its potential development and so now is the time to pension it off.

However, the real reason is that it is too bespoke and expensive. The new one is designed to be built on the same line, shared parts etc etc.
^+1 Mezger engine is very expensive to produce. Be interesting to see how the 991 GT3 engine holds up.

mollytherocker

14,460 posts

238 months

Tuesday 19th November 2013
quotequote all
mm450exc said:
^+1 Mezger engine is very expensive to produce. Be interesting to see how the 991 GT3 engine holds up.
With so much at stake in terms of their reputation, i will be flabbergasted if they have made a pup.

It would be a monumental cock up. Surely, they have gone to great lengths to make a goodun?

graemel

7,225 posts

246 months

Tuesday 19th November 2013
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We'll have to see how it hangs together with its 9000rpm. Delayed production does not impress

Dr JonboyG

2,561 posts

268 months

Wednesday 20th November 2013
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Murcielago_Boy said:
Cheers! smile

So next question, why doesn't the 991 GT3 have it?
Presumably because Porsche doesn't want to have to rebuild their road car customers' engines every 50 (?) hours? I think they're also pretty desperate to get direct injection homologated to compete with Ferrari and whoever else have DI engines in GTE, and they need the road cars to do that.

Gary11

4,162 posts

230 months

Wednesday 20th November 2013
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Ok so I wonder what La Sarthe will see next year 9A1 or Mezger? Or will it again be a C4S?

mollytherocker

14,460 posts

238 months

Wednesday 20th November 2013
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Gary11 said:
Ok so I wonder what La Sarthe will see next year 9A1 or Mezger? Or will it again be a C4S?
I reckon it will be as this year, a homologated C4S with a Mezger.

Murcielago_Boy

Original Poster:

2,014 posts

268 months

Wednesday 20th November 2013
quotequote all
Me confused (maybe!)

- Mezger deemed at limit of development but robust enough to keep racing.
- 991 engine too expensive to homologate for racing but Mezger is acceptably expensive per unit for race cars.
- Mezger must die for road cars because it's not direct injection.
- Mezger must live because 991 engine unproven so can't race but IS reliable enough for road cars.

Basically have Porsche killed the Mezger for £££££££?





mollytherocker

14,460 posts

238 months

Wednesday 20th November 2013
quotequote all
Murcielago_Boy said:
Me confused (maybe!)

Basically have Porsche killed the Mezger for £££££££?
Its one of the key reasons I believe.

GreatPretender

26,140 posts

243 months

Wednesday 20th November 2013
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Murcielago_Boy said:
Me confused (maybe!)

- Mezger deemed at limit of development but robust enough to keep racing.
- 991 engine too expensive to homologate for racing but Mezger is acceptably expensive per unit for race cars.
- Mezger must die for road cars because it's not direct injection.
- Mezger must live because 991 engine unproven so can't race but IS reliable enough for road cars.

Basically have Porsche killed the Mezger for £££££££?
££££, emissions and development capacity.


sidicks

25,218 posts

250 months

Wednesday 20th November 2013
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GreatPretender said:
££££, emissions and development capacity.
As above, would you spend £££££ developing a new engine for a race series that might not actually go ahead in that format in a years' time?

Gary11

4,162 posts

230 months

Wednesday 20th November 2013
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mollytherocker said:
I reckon it will be as this year, a homologated C4S with a Mezger.
Me too I think the reliability of the Mezger and the years it's raced in all classes are impressive and unprecedented, not a reputation gained easily and a reputation to be maintained,any reliability issues shown on the track will be very bad for Porsche track status sells cars.Hence they need to get it right!

SonnyM

3,473 posts

222 months

Wednesday 20th November 2013
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mollytherocker said:
Murcielago_Boy said:
Me confused (maybe!)

Basically have Porsche killed the Mezger for £££££££?
Its one of the key reasons I believe.
Cost is 50% of the reason for losing the Mezger according to one of the interviews with AP.

kleonard

767 posts

253 months

Wednesday 20th November 2013
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The 991 cup has the same as the 12 cup engine but different box

There's a 4.0 litter engine on the way soon for the cups

BIG GT2

348 posts

174 months

Wednesday 20th November 2013
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before any one argues with this, karl has got a 991 cup.
ive been following the thread on rennlist, beautiful car sir!


kleonard said:
The 991 cup has the same as the 12 cup engine but different box

There's a 4.0 litter engine on the way soon for the cups