Conekilr

FYI...

CRex

I suspect the numbers for the 991 is with PCCBs. Impressive nevertheless.

Conekilr

Yes...

MaxLTV

Interesting. Weight distribution on 991 seems off - Porsche press stuff mentioned 42/58, and it makes sense - lighter engine behind axle, heavier gearbox in front of the axle - all makes for CG shift forward compared to previous gen.

But what I like is that it's lighter than previous gen GT3.

Bill_C4S

Intriguing indeed.....as such runs counter to Porsche's own numbers.....

911rox

Were these cars they personally tested??? Likely that options on the cars may have influenced the weights quoted...

Macca

Yes I believe these tests were tested by the AMS staff that do the testing. I wouldnt be surprised with weight as we already saw from the EVO test the 991 GT3 was lighter than the 997 4.0RS..remember these test cars are specced with PCCB and sport bucket seats.....no front lift....

Arth

God this car is awesome

Manifold

So how has all this favorable reporting affected 997 GT3 prices? And how will it affect the prices once the 991 GT3 starts getting into garages and showing up at the track? I would think that many 997 GT3 owners must be coming to terms with the PDK and thinking about an 'upgrade' by now.

0Q991

Can the time discrepancies for the 0-100kmph and 0-200kmph between this test and Porsche's own numbers be attributed only to the weight of the passenger, the testing equipment, and a full tank of gas? I ask bc the discrepancy seems quite large--in the US, the 0-60mph is quoted by Porsche to be 3.3sec.

Bill_C4S

Channelling Flounder me thinks:

Macca

oQ991.

Firstly 60 mph is not 100kmph. 62 mph is 100kmph. The 0-62 mph time is quotes by Porsche as 3.5s

So there is 1 tenth second discrepancy between the test and Porsches figures.

An average male with clothing and timing gear would be circa 100kg. I know with my own 911 from 13 years of experimentation loosing 100kg equates to more than .1 second 0-100kmph. Infact in my example dropping form 1420 to 1325 kg made a 0.3s improvement using the same timing gear.

Lastly 100kg had a greater effect on acceleration the longer the distance. the relationship is not linear. for 01-100 you loose say 0.1s from the 100kg weight penalty and that's a very conservative loss as its probably closer to 0.2-0.3s. But you can expect 4 x and more this difference when doubling speed from 100-200kmph...

kosmo

they s/h had the RS, as the GT3 who comes w/ a WB.

I find the flexibility #s impressive, the weight not so much.

0Q991

@Macca -- Thanks for the explanation! I knew that 100kmph = 62mph, but didn't know the compounding factor of the added weight would calculate as such. What are your thoughts on the weight distribution?

GrantG

The braking tests 62mph to 0 are really only a reflection of the tires and ABS (any GT3 has brakes strong enough to lock the wheels from that speed). Any real test of braking needs to be done at much higher speeds and for prolonged periods.

That being said, I suspect that the new 410/390mm PCCB's are a big improvement.