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About ianwallwork

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    Contributing Member
  • Birthday 01/01/1961

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  • From
    Manchester, UK
  • Porsche Club
    PCGB (Porsche Club Great Britain)
  • Present cars
    2010 997 C2S PDK
  1. Or try this little gadget. Gives you full manual control over your PSE, stops it going quiet at certain rpm and lets you have the exhaust loud with the car in normal mode - perfect! Go to http://www.carnewal.com In the menu, select exhaust. Then scroll down to P97-1 and look for PSE Manual Control with Remote
  2. Keep a VERY close eye on this one. If you're getting a reduction in oil pressure under acceleration, it could mean that the engine's being starved of oil. I had the very same problem on a 996. The stealer also thought this was a faulty sender, but a new one made very little difference. The real problem was quite difficult to diagnose. What was happening? Simply there wasn't enough oil in the sump under running conditions. It was OK with the engine off, but whilst running, the level was going dangerously low and the oil pickup was being starved of oil. How? Good question! The M96/7 engines ha
  3. Hi everyone, I'm hoping someone (maybe with access to a Porsche parts system) can help me with a problem relating to the clutch release mechanism on my 997S.1. I'm currently having the gearbox replaced on my car ('05 997S.1) due to my the original 'box breaking a tooth on 1st gear. Whilst there's no 'box on the car, I'm having a couple of bits and pieces sorted. This includes new RMS and Intermediate shaft seals as both were 'weeping'. The biggest and most irritating problem we're loking to address, however, was a squeaking clutch. Every time the clutch got warm it squeaked at the gearbox
  4. Sad to see you getting rid of the S, I read on 6speed that you were considering a GT3 or TT. I talked to several people who have the IPD plenum and they were very pleased with it. I am more interested in the plenum as it can be machined to fit the X51 throttle body, any thought on this?? Dave I'm really surprised that IPD didn't make a specific plenum for the X-51 T/body w/ the standard intake runners. If their standard 997 item can be machined than it's the perfect conversion kit to get this part and the X-51 airbox to work with the rest of the intake system. The only (major) pro
  5. Hi Dave Not really - I've had one or 2 minor issues with the car that should be sorted by next week. (Just bits and pieces breaking and falling off, broken windshield all really irritating but almost sorted). I've decided not to go any further modifying this car for now. The lease is up later in the year and I can't justify spending even more money on mods I'll only be able to enjoy for a few weeks. Interestingly, RSS has offered to swap the plenum I bought from them for their 'Gen-2' version. I'm told that will address the fitment issues I had and maybe I'll also see the performance gains
  6. I had my ECU reflashed using the PIWIS a couple of days ago. I've put approx 200 miles on the car since the ECU upgrade and I'm delighted to say the performance is now improving with miles not getting worse. Other than that, the car now idles better, runs far smoother when cold and has more torque through the gears so I guess the previous file on the chip must have gotten corrupted somehow. Thanks, Loren, for your input on this one.
  7. Thanks once again for the reply. I'm having the reflash done next week and will let you know how I get on.
  8. Hi Loren, thanks for the reply. My local Porsche independent just acquired a PIWIS but, as yet, hasn't done an ECU reflash. Do you have access to any documents that detail the procedure to reflash the ECU? Also, do you have any idea how the flash files come from Porsche? Are they on CD/DVD or are the various files included the software that gets loaded onto the PIWIS computer? Sorry for so many questions - hope you can help.
  9. I'm hoping someone might have some data regarding how much ignition timing (in degrees BTDC) a 997S.1 typically runs at full throttle and peak power (6900 rpm). The reason for the question is that my car seems to have an ECU problem. When you reset the ECU (disconnecting the battery for a while) it runs fantastically well for the first hundred miles or so. The performance then dips gradually away - the car gets slower and slower over a couple of hundred miles, maybe to the tune of around 30BHP down, and sounds flatter and flatter. Resetting the ECU again restores the performance to normal le
  10. I'm having a custome remap done on 1st May. I think this is the best way to tie together any mods as the mapping , if done cirrectly, will work perfectly with the hardware on the car. It also takes into account the slight differences between production engines, the grade of fuel you use and (to a point) your driving style. The remap is being done by a UK tuner who does the mappings for most of the Porsche Chalenge Cup cars in the UK. They have a fantastic reputation and I can't see all the race teams going there year after year if they're not good at what they do. I'll be reporting back with
  11. Ian, glad to see you here as well and always look forward to your input. However, the X51 heads from my understanding are nothing more than some bowl work and a stiffer exhaust valve for the increased rpm to 7450rpm. The stock non X51 heads have to flow pretty darn good to get to 93hp/litre while limiting rpm to 7300rpm. In my own experience heads without updated cams and more rpm is probably at best 5-10rwhp and in my opinion are a total waste of money for what Porsche wants for the X51 heads. You layed out a good plan for getting the hp to at least X51 levels with only half or less of th
  12. That is interesting about the plenum. The 3.4 is a very different engine to the 3.8 and as such will have totally different intake characteristics. Maybe this engine responds well to the changed flow patterns the plenum causes in the induction system whereas the 3.8 seems not to. I'd be intrigued to see some dyno plots on this one.
  13. There really is some utter cr*p talked about how to get power from a naturally aspirated engine - especially regarding how much is available from bolt-on mods. I think it's about time we discussed what does and doesn't work on these engines.... The 3.8 engine in stock tune produces 93.4BHP/litre. Not stellar by today's standards but still high enough that there's not a lot of 'low-hanging fruit' to be had. Also bear in mind that most engines that do a lot better are either forced induction or (more importantly to this discussion) rev much higher. The max BHP obtainable from an engine increas
  14. I've had a chance to look through the file you sent me - many thanks indeed, it's going to be really useful. The only thing it doesn't have is procedures for using the PIWIS. It would seem there is a separate section in POSES dedicated to Diagnostics which I assume will have this info. Is the 997/S diagnostics file one you might have?
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