John Matthias Syrinek

On my 4S, I couldn't even get a socket with a swivel joint on the rear A/C compressor bolt in steps 6 and 7, because an A/C line was immediately above the bolt. Here's how I did it: Get a 13mm flex-head ratcheting wrench. Remove the throttle body, T-shaped intake plenum, and sensors - slide the rubber hoses away from the T-shaped plenum, pull off one side, then the other. With the wrench on top of your hand and your palm up, stick you hand into the area the plenum was, and to the back side of the A/C compressor. Feel around, and use your thumb to place the ratcheting end of the wrench on the bolt head - break the bolt loose. Reach back behind the part of the intake that goes to the cylinder closest to the rear of the car on the passenger side (between cylinders 4 and 5) - remove the sensor from its bushing by pulling up. Remove the bushing that held sensor from previous step in place by sliding towards passenger side. Bend the flex-head of your ratchet 90 degrees and use your right hand to insert into the space the sensor and bushing from the previous steps were located. Use your left hand to locate the ratcheting end onto the bolt head. Use your thumb and forefinger on your right hand to rotate the wrench and loosen the bolt more. Keep ratcheting until the bolt is completely loose - mine can't actually be removed entirely without removing the A/C line immediately above the bolt.

Thanks roadsession - good one. I tried Google, and the only thing I found was something from Fabspeed. Alex just replied to my inquiry saying they'll start selling these in a few months. I'm not a fan of the X50 style tips, and was hoping somebody might know something Google and I do not know.

I bought this 2002 C4S (picture below) a few weeks ago. I've posted a few times, but now that I've had some time to look at my options for the car, I have a few questions. My goals for the car is basically to continue what Porsche started; I want the whole enchilada. In order, I'm looking for performance, great looks, and comfort. This is a daily driver, but I plan on a little track time just for fun (working on a Miata for the track). Questions: The C4S's drive-line feels pretty sloppy in comparison to my Miata. Yes, I know they're completely different cars; the Miata is a track car, and the C4S is a daily driver, but I'd like something a little more controlled from the Porsche. I've heard good things from Function-First's transmission mount inserts, and their engine mount upgrade looks like a perfect compromise of stiffness, comfort, and price. Are there better alternatives to these two upgrades, or am I on the right track? I like the lowered look from the RÜF suspension, but the wheel fitment isn't great. I want something that's simple, more flush with the fenders, and shows off the brakes, but doesn't compromise performance - nothing goofy. What sort of dimensions should I look for? I like the 5-spoke design of Avant Garde's F330 wheels, but don't think the straight lines would go with the 996's curvier lines. Looking for something like a mixture of the OEM turbo wheels and F330's with less weight and better fitment - maybe ADV.1's ADV05.1 M.V1 SL. I'd like to open up the intake a little, but don't want to increase the wear on the engine from additional silica. Evoms' V-flow looks well engineered, and Fabspeed's competition intake is supposed to sound great, but I worry about increased wear and tear. Is there anything else I can do to improve sound and performance? Would Fabspeed's cold air upgrade kit and/or an IPD plenum be worth it, or should I just accept that I can't get better sound without sacrificing durability? After I figure out the intake, I think the better-breathing engine could really benefit from ECU/PCM tuning. I don't care about MPG or octane rating. Is the EVOMSit my best option? I haven't really seen anything else.

Thanks Loren!

Please confirm these are the right part numbers for a 2002 C4S: 996-314-050-02 Power steering pump 000-043-206-56 Pentosin hydraulic fluid 996-106-011-56 Water pump 996-106-340-54 Water pump gasket Thank you!

1. Do they exist? 2. Photo?

Same question. Also, what's the point of the bypass valve? I'm guessing to prevent oil starvation under high loads. Is it safe to eliminate this? The stainless filter that never has to be replaced seems cool. Why don't these come with the car?

Bill, if such a retrofit used vacuum lines and was designed properly, we wouldn't need a servo motor, correct? I'm wondering if it would be worth it to bring some calipers to the shop this Friday when I go to install my spoiler and flex disk. The owner has a few 997s for sale there, and he's nice enough to probably let me take some measurements. PS - sweet ECU lab!

Mark, It's Delrin. A type of plastic similar to nylon. It doesn't sound to me like that's the source. And it's a snug fit in the hole with that O-ring. Given what I read about the 997, I suspect it's the same noise the factory decided to get rid of. <<< The air filter of the 3.8 litre engine differs from that of the 3.6 litre engine through an active on-demand resonance reservoir integrated in the upper part of the air filter. Undesired noises can be insulated by adjusting the volume of the reservoir according to engine speed, whereby sound in the passenger compartment is optimised. One of the goals in adjusting the passenger compartment sound has been to reduce background noise in the higher frequency range and to greater emphasise the sporty, load-related exhaust and intake noises between 300 and 600 Hz. Opening and closing the resonance reservoir produces an improvement in the intake noise of the 3.8 litre engine, particularly in combination with the specific intake system of the 3.8 litre engine. This reservoir is activated via a vacuum-controlled flap as a function of engine speed and using temperature compensation. The flap opens in the temperature range between 0 and 30 °C at between approx. 4,600 and 4,800 rpm and closes at between approx. 6,000 and 6,250 rpm. >>> You can see the flap in the pic, inside the hole we've been plugging up. Bill This is really smart! All the straight-pipe cold air intakes eliminate the Helmholtz resonators which compromises sound at resonant RPMs. I wonder if it'd be possible to retrofit the vacuum controlled 997 resonant chambers onto a 996.