RonCT

Order goes in tomorrow, so I want to start a thread outlining the typical "DE oriented" specifications / updates.

I understand the springs are shorter and stiffer, which is a good thing. Also that the valving / software is updated based on what Porsche learned from PASM 1, the GT3, and the latest GT2 suspensions. That's also good thing.

The sways are thicker, but does anyone have any specification on them and is it possible the fronts are adjustable? I'm guessing not. Any idea if GT3 sways are a direct fit (they weren't in the 2007 as new drop links were needed). I'm going to stick with stock for a while, but this thread may be a good place to collect this information for everyone.

Here are some updates / mods:

1. Software. Doesn't look like anyone lists software yet for the 2009 DFI engines. Any information on possible gains, product development timelines, etc.?

2. Exhaust. I saw the posts and it looks like many more options than ever before in a 997 - almost like my 964 was. Primary or secondary bypass. In my 2007 C2S, the best-for-me combination was X51 headers, 200 cell, and stock mufflers along with Softronic. Sounded great, gave a little more performance. I'm guessing sound levels of the secondary bypass is going to be high. I once had a full aftermarket header / cat / muffler system, but removed it as it was just too loud for around town. Thoughts / observations from those that have seen / heard the various options?

3. Intake. I tried an alternative intake on my 2007 and sent it back. Was not happy with it and remain concerned about oiled filters (had a fouled MAF in the past on a pre-oiled filter). The dyno charts are promising - anyone have data on a combination of intake and exhaust? Right now I'm leaning toward a primary bypass and intake and would be interested to know what that combination produces for gains.

4. Brake pads - I used to run Yellow 29s up front and Black 14s at the back due to the brake bias. Anyone know how the 2009 with Sport PASM suspension / LSD and PSM's Brake assist and brake system pre-filling. Wondering if the bias is more neutral where you'd get Yellows all around or stick with the Yellow / Black combination?

Thanks!

Coochas

Hi Ron,
I know that Alex (Skarkwerks) bought an 09 car a while ago and has been busy modding it. Send him a PM,...maybe he can give you something hot off the press. Enjoy and Happy New Year.

Bob Rouleau

The 997 has much improved brake bias compared to th 996GT3. Use RS 29's or 19's all around.

mdrums

Ron, Fabspeed is the only company so far that has built any type of performance intake for the new 2009 Carrera. Fabspeed also bought their own 997S to research and build products for. They have dyno results on the Fabspeed website. I know the Koni Challaenge series cars are useing the new Fabspeed X pipe, by pass pipes and the new air intake.

Remember you only get the shorter springs, thicker sways and re-valved shocks with the Sport PASM NOT the standard PASM. LSD also comes with the Sport PASM pkg.

RonCT

Thanks guys, much relieved to hear the bias is improved and I hoped as much due to the PSM oriented brake updates. I'll be getting a set of 29s then all around. Mike - My order includes Sport PASM, but it would be interesting to know the specs on the sways (assuming hollow and just thicker than non-sport).

Another thing I'll be doing is stainless screen at the intakes. Need some protection up there. Here's how it came out on my GT3 - one piece of sheet material. Parts and fabrication / installation labor all added up to about $435 at Dan Jacobs'.

mdrums

Ron, I thought you were a Performance Friction PF97 guy? I used these too and the Pagid Yellow 29's on my 2007. There are things I liked about both but I am really unsure what pads to buy next. No bed in sure is nice with the PF97's.

RonCT

5. Alignment. I understand from Mike here that with the new lower suspension we can get upwards of -1.4 degrees of camber. Not enough for track, but much better than the old suspension that maxed out at about -0.8 degrees. Will have to add GT3 control arms to get to -2.5 or so.

6. The new wheels look great and I'm guessing they are pretty light. Still have my 19x8.5 / 19x11 Volks with Cups and 18x9 / 18x12 Fikses with Hoosiers as my wheel / tire choices. Will have to see if the new stiffer and lower suspension likes 18s or 19s better.

savyboy

2009 997.2 Carrera

Front

Springs:
Basic Carrera 27 N/nm
C/CS S PASM 33N/nm
C/CS S PASM Sports Chassis 36N/nm

Base C4 30N/nm
C4/C4S 4S PASM Chassis 33N/nm
C4/C4S 4S PASM Sport Chassis 36N/nm

Anti-Roll Bars (tube)
Base 24x3.8mm
PASM Coupe 24x3.8
PASM Cab 25.5x3.8
PASM Sport (Cpe only) 24.5x3.8

S
PASM 24.5x3.8
PASM Sport (CPE only) 24.5x3.8

C4
Base (CPE/Cab) 22.5x3.5
PASM (CPE/Cab) 23.6x3.5
PASM Sport (CPE only) 23.6x3.5

C4S
PASM 23.6x3.5
PASM Sport 23.6x3.5

Rear

Springs:
C/CS
Base Manual 43N/nm
Base PDK 46N/nm
PASM 56N/nm
PASM Sport progressive 65/95 N/nm

C4/C4S
Base Manual 43N/nm
Base PDK 46N/nm
PASM 60N/nm
PASM Sport progressive 65/95 N/nm

Anti-Roll Bars (tube)
Base 18.5x2.5mm
PASM 18.5x2.5mm
PASM Sport 18.5x2.5mm

S
PASM 19.6x2.6
PASM Sport 18.5x2.5

C4
Base 20.7x2.8
PASM 21.7x3.0
PASM Sport 20.7x2.8

C4S
PASM 21.7x3.0
PASM Sport 20.7x2.8

996toomey

Savyboy:

Any idea of how these spring rates compare to a 2006 997S?

Thanks.

savyboy

All I have access to is the 2009 info, sorry

RonCT

7. Wondering about 3rd front radiator kit as in the X51. $350 for the parts, added cooling...

mdrums

Do not need it for the 997.2. The 09 has much better cooling than the old car. Also the opening is totally different and there is aero tricks in the front to force air to the side radiators and where you would normally mount the center radiator.

My 06 and 07 0997S has the 3rd center radiator and the oil level would raise above 150 to half way to 200 degrees before I got out of my neighborhood. With my 997.2 the oil temp does not budge until miles up the road after I leave my neighborhood.

the whole internals of this new 3.8L to route the oil and antifreeze is different than the old 997S and the new 997S does not need a 3rd radiator.

mdrums

Savyboy, good info. Where did you find it?

savyboy

Mike,

Stock PNA-911--021-09
2009 911 Technical Introduction

$17.50

I ordered my copy from Carlsen in Redwood City, CA. http://www.carlsenporsche.com/access...05&category=24 But I would think any dealer has these in stock? I can report that Carlsen was fast and professional in handling the order.

Money well spent, chock-full of technical goodness. Details of all the changes in the 09's.

RonCT

Interesting information for sure!

PASM = 188 lbs front 320 rear spring rate (N/mm * 5.710143 = lb/in).
PASM Sport = 206 front 371-543 progressive rear.

Sway up front is the same (24x3.8mm), but rear on Sport is actually thinner (18.5x2.5 vs. 19.6x2.6). That's interesting because Porsche writes that the sways are stiffer, so I wonder...