Some 997 info (faq)

[bosshog]

Lifted from rennlist:

www.rennteam.com/showflat.php?Cat=&Number=36015&page=0&view=collapsed&sb=5&o=&fpart=1

rennlist said:

1. Does the 997 use the same engine from the 996? Yes and no. The 997 Carrera uses practically the same engine with a different motronic, different airbox and a different exhaust system. Some other minor mods exist too. The 997 S has a completely revised 996 engine, many parts have been exchanged and the engine has been improved. But it is still based on the 996 engine. 2. Does the 997 have a true dry sump lubrification? No. The 997 uses the same so called "integrated dry sump lubrification system". This system is not the same as the "true" dry sump lubrification like the 996 Turbo/GT3/GT2 have. 3. Does the 997 S has a wider body than the 997 Carrera? No, both cars have the same body and therefore the same width. 4. Is the new sport suspension incl. limited slip differential available with PSM (ESP)? Yes. Both, the 997 Carrera and 997 S have PSM as a standard option. 5. If I turn off the PSM on the 997, does the PSM come on again when I apply the brake? Yes, as soon as you apply the brake pedal, the PSM comes on again. With the Chrono Sport Package Plus and activated "sport" setting, the PSM comes only on again when you apply the brake very hard. 6. Is it true that the Chrono Sport Package Plus allows changing the engine software mapping, even changing the E-Gas, PSM and Tiptronic mapping to a more sporty and aggressive setting? Yes, this is true and it all happens just by the push of a little button. 7. Is the 997 heavier than the previous 996? Yes, the 997 Carrera is 25 kg heavier, the 997 S is 50 kg heavier. 8. Is it true that the 997 Carrera has a different brake system than the 997 S? Yes. The 997 Carrera uses almost the same brake system as the previous 996 with some improvements but the same brake disc size and black brake calipers. The 997 S uses a brake system similar to the 996 Turbo brake system, including the same(bigger) brake discs and red calipers. The PCCB brake system with even bigger brake discs and yellow calipers is a available for both 997 models as an extra option. 9. Is it true that the 20 mm sport suspension incl. LSD is the better choice for track racing than the PASM system? Yes. The 20 mm sport suspension incl. LSD provides the sportiest setup for both, the 997 Carrera and 997 S. For the 997 S, this suspension is optional at no cost. 10. Is the standard PASM (electronic suspension) on the 997 S a similar system as on the Cayenne, a so called air suspension and is PASM height adjustable? No. PASM on the 997 S (optional at extra cost for 997 Carrera) is not working with air but with oil in the dampers. It is a less complex system with two settings only and it is not height adjustable. 11. Is it true that although the 997 seems to look pretty much like the 996, both cars don't share a single body part? Yes, this is true. 12. Is it true that the gearbox of the new 997 has steel synchro rings(similar to the GT3) instead of the brass rings on the 996? Yes, this is true. The first three gears even have steel synchro rings with a carbon coating. 13. Is it true that the 997 has a newly developped variable ratio steering system which improves driving dynamics a lot, especially in narrow curves and sharp turnes? Yes, this is true. Depending on how much you turn the steering wheel, the steering varies the ratio relationship up to 13,8:1, providing a very direct steering feel, almost kart like. On the other hand, it provides an improved highspeed stability feel due to the less direct steering ratio around the middle point. 14. How about a 997 Cabriolet, will there be one any time soon? 997 Cab introduction should be around beginning of december 2004 and first cars should go to dealers around beginning of 2005 or latest spring 2005. Rumors indicate the possibility of a 997 Cab S but maybe not immediately after 997 Cab introduction. 15. Does Porsche offer a sport exhaust system for the 997? The Porsche sport exhaust will be available soon for the 997 Carrera and 997 S. Option code is XLF.

>>> Edited by bosshog on Monday 14th June 12:22

[jjr1]

I am very confused by why PSM is reactivated as soon as you press the brake pedal?

So If I turn it off at a trackday by the time I get into the first corner it is reactivated?

Whats the bloody point of that then?

[bosshog]

I was thinking the same......

[dazren]

I think they mean the PSM is only activated during braking (like when PSM is turned off on the 996 system).

DAZ

[Azura_tzo]

It only reactivates if:
-the sensors conclude the car is out of control (e.g. spinning past a certain angle), AND
-you press the brake

The logic is that you are trying to slow down/correct when you hit the anchors so the electronics help you out