991 X51 PowerKit

GT4 · 5 Jun 2012

991 X51 PowerKit
Output upgrade for 3.8S normally aspirated MA1.01 to 316 kW (430 hp).

PowerKit includes:

Modified cylinder heads
New camshafts
Newly developed variable resonance intake manifold with six plus one switchable valves (VARIORAM 991)
Central third radiator (non-PDK vehicles)
PSE Sports exhaust system (XSF) with specially designed twin dual-tube tailpipes (M176)
Sport Chrono package (M639/M640)
Dynamic Engine Mounts (M140)
New DME maps (performance optimised engine electronics)
Painted engine cover ("Titanium" silver) with carbon fibre emblem cosmetics

Circa £13,420 (but includes XSF, M140, M176, M639, M640 cost options)

nick w · 6 Jun 2012

That's a pretty substancial list of modifications...for Porsche it actually
represents pretty good value. That will go like a bloody rocket !!, I see
that the GT3 RS isn't now due till 2015.. :sad:

wizard993 · 6 Jun 2012

nick w said:
That's a pretty substancial list of modifications...for Porsche it actually
represents pretty good value. That will go like a bloody rocket !!, I see
that the GT3 RS isn't now due till 2015.. :sad:

Probably explains why 997 GT3 RS's are not changing hands very often this year!

I heard a rumour last week that Porsche may not actually make a 991 GT2!

Roro · 6 Jun 2012

wizard993 said:
nick w said:

That's a pretty substancial list of modifications...for Porsche it actually
represents pretty good value. That will go like a bloody rocket !!, I see
that the GT3 RS isn't now due till 2015.. :sad:

Click to expand...

Probably explains why 997 GT3 RS's are not changing hands very often this year!

I heard a rumour last week that Porsche may not actually make a 991 GT2!

No 991 GT2?? That's a shame, the GT2 is probably the most enigmatic 911, epic in every way except production volume...!

adam2712 · 6 Jun 2012

If the gt3 is going to be produced with 450 HP engine, that's only 20hp more than the C2 with the x51 power upgrade. No manual transmission for the gt3 :?: manual transmission available for the C2 along with lowered stiffer suspension option.
So what nice stuff could Porsche put into the GT3 to make their trackday toy worth the extra money over and above a C2 specced for trackdays :?:

GT4 · 7 Jun 2012

Porsche are adding lightness.

Maxie · 7 Jun 2012

adam2712 said:
If the gt3 is going to be produced with 450 HP engine, that's only 20hp more than the C2 with the x51 power upgrade.

Differences are reducing through the series:

996.1 X51 - 320PS
996 GT3.1 - 360PS

996.2 X51 - 345PS
996.2 GT3.2 - 380PS

997.1 X51 - 385PS
997 GT3.1 - 415PS

997.2 X51 - 408PS
997 GT3.2 - 435PS

Perhaps the smaller differences in the 991 are owing to exactly the same block being used in both Carrera and GT3; this was not the case in the above examples. However, as GT4 says, the GT3 cars are noticeably lighter in mass than the Carreras and this is where the real pay-off is.

~ Maxie

GT4 · 7 Jun 2012

http://www.911uk.com/viewtopic.php?t=69726

On Mon Dec 26 said:
Sorry, no diesel version (at least during Gen 1), Hybrid in late 2014:

H2 2011 991 Carrera and Carrera S
H1 2012 991 Carrera and Carrera S Cabriolet
H2 2012 991 Carrera 4 and Carrera 4S
H1 2013 991 GT3 (450 BHP)
H2 2013 991 Targa 4 and Targa 4S
H2 2013 991 Turbo (520 BHP)
H1 2013 991 Speedster
H1 2014 991 Turbo Cabriolet
H2 2014 991 Carrera S Hybrid (although actually a 3.4)

Liked that power series, so I thought I'd make a chart too

Tony 991S · 7 Jun 2012

I was thinking about having the X51 retro fitted, but I've got some of the items on the list so I don't think it would be financially worth it. :dont know:

Think I'll still go for the GT3 as long as the suspension is not rock solid.

nick w · 7 Jun 2012

Rimmer said:
I was thinking about having the X51 retro fitted, but I've got some of the items on the list so I don't think it would be financially worth it. :dont know:

Think I'll still go for the GT3 as long as the suspension is not rock solid.

Er..it will be how could you say a triffle firm !! :grin:

wizard993 · 7 Jun 2012

GT4 said:
http://www.911uk.com/viewtopic.php?t=69726

On Mon Dec 26 said:

Sorry, no diesel version (at least during Gen 1), Hybrid in late 2014:

H2 2011 991 Carrera and Carrera S
H1 2012 991 Carrera and Carrera S Cabriolet
H2 2012 991 Carrera 4 and Carrera 4S
H1 2013 991 GT3 (450 BHP)
H2 2013 991 Targa 4 and Targa 4S
H2 2013 991 Turbo (520 BHP)
H1 2013 991 Speedster
H1 2014 991 Turbo Cabriolet
H2 2014 991 Carrera S Hybrid (although actually a 3.4)

Click to expand...

Liked that power series, so I thought I'd make a chart too

Liking the chart :thumb:

nick w · 7 Jun 2012

...This weeks's top 20 countdown... :wink:

GT4 · 7 Jun 2012

Rimmer said:
I was thinking about having the X51 retro fitted, but I've got some of the items on the list so I don't think it would be financially worth it. :dont know:

Think I'll still go for the GT3 as long as the suspension is not rock solid.

The engine mods will be available peicemeal.

adam2712 · 7 Jun 2012

GT4 said:
Porsche are adding lightness.

maltesers in the glove box. :?:
radio 4 providing the music. :dont know:
Cunno and my 15st 7lbs as pilot and copilot :hand:

:grin:

GT4 · 7 Jun 2012

Didn't get the Colin Chapman reference then?

991 X51 PowerKit

Nordschleife

Zandvoort

Donnington

Sebring

Spa-Francorchamps

Nordschleife

Yas Marina

Nordschleife

Attachments

Imola

Zandvoort

Donnington

Zandvoort

Nordschleife

Spa-Francorchamps

Nordschleife

Similar threads

Porsche Model Range

Porsche 911

Porsche Hypercars

Other Current Porsche Model

Porsche Legacy Models

Forum statistics