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  1. #21
    4by4's Avatar
    4by4 is offline Crusin worlds most isolated city
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    I dont think my needle works because it never moves.
    2010 Cayman S, special build.


  2. #22
    pedsurg is offline Porsche Enthusiast
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Dollars aside, is there a downside to a third radiator. Its quite interesting that PDK cars already have them.
    Jack
    Tampa

  3. #23
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Ran my 2009 boxter-s pdk no sport chrono up at Lime Rock today and the needle did not budge off of 175, straight in the middle all day, it was about 60 degrees. Car ran nice, but i manually shifted it on the track, it auto mode it was not smooth, i dont know if sport chrono makes a difference.

  4. #24
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Tracked my car 11 times this year, I have an 09 non-PDK and I've never seen anything unusual in the temp department. I do track my car fairly hard but not to the max of my capabilities. Had a couple track days where the asphalt itself was around 44 Celcius. Extremely hot days and not a single problem.

  5. #25
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Quote Originally Posted by BMWalsh View Post
    Mine never "overheated" and the warning light never came on. But the temp needle moved well past centerline to almost the waring light. I just happened to look down and noticed it. Short shifting brought the temps nearer to centerline. I assume if I hadn't noticed it that the needle would have pegged all the way.

    After that, I watch the needle whenever the ambient temps are above 90. Once the needle moves past center, I back off and/or come in.
    I think this was at VIR, right? You may have left by that time, but during that event, both Greg and I had the same issue as yours Brian. First ever for me in the last 4.5 years of track with the same car, but it would creep up beyond 175 couple of ticks, I would start shifting at 6K rather than 7K and it would come back down. But it would creep up again if I started shifting near red line, which was quite annoying and took the fun out of it.

    The weird part, as I mentioned, this never happened before until that event, and I do have a lot of track miles on the car, which is stock '06 CS manual.
    Fatih

  6. #26
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    JCay is offline The driver formally known as Torque
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    A buddy of mine in a 2011 Cayman S did two track days, one of which was during record high temps, and yes, his car overheated too. His alarm beeped at him when the needle went up too high. Nice warning

  7. #27
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Quote Originally Posted by JCay View Post
    A buddy of mine in a 2011 Cayman S did two track days, one of which was during record high temps, and yes, his car overheated too. His alarm beeped at him when the needle went up too high. Nice warning
    This is discouraging. I thought that the 2010+ cars have upgraded radiators (though it may only be the pdk cooler).

  8. #28
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Quote Originally Posted by rubber_ducky View Post
    This is discouraging. I thought that the 2010+ cars have upgraded radiators (though it may only be the pdk cooler).
    A fellow I know who used to race Cup Cars suggested replacing the center radiator with a Cup center radiator. Any lines on those?

    Hmm, I just read BGB's thread on the Grand Am build; noticed they, under the permissible rules, put in a 997 center radiator.
    Last edited by grayghostS; 11-23-2010 at 12:30 PM.
    STOLEN 5/14/11, SE Denver, CO, RED 1993 911/964 w/3.8l wing, 18" 996 Cup Mg BBS/Hoosiers, extra 18"OZ Alleg/Kumhos (in trlr), GOLD 2004 Ford F350 XCab (4-dr.) CO tag 193 NER (no shell/tailgate), 24' enclosed trailer (recovered but stripped)

  9. #29
    pedsurg is offline Porsche Enthusiast
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Just received confirm from wrench re my aux center radiator and pdk tranny cooler for my 09 six speed.

    Jack

  10. #30
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Quote Originally Posted by pedsurg View Post
    Just received confirm from wrench re my aux center radiator and pdk tranny cooler for my 09 six speed.

    Jack
    Hi Jack,

    Tell us more. What center radiator? Is it the same part number as the 997?
    STOLEN 5/14/11, SE Denver, CO, RED 1993 911/964 w/3.8l wing, 18" 996 Cup Mg BBS/Hoosiers, extra 18"OZ Alleg/Kumhos (in trlr), GOLD 2004 Ford F350 XCab (4-dr.) CO tag 193 NER (no shell/tailgate), 24' enclosed trailer (recovered but stripped)

  11. #31
    pedsurg is offline Porsche Enthusiast
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Happy to post as soon as I have the part numbers

  12. #32
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Hiya Folks,

    I am aware that this is a late post on this thread. I tracked my 2010 CS PDK with Sports Plus at Yas in UAE last Thursday Evening. The temps are serious here - the ambient ranged between 38DegC and 43DegC, the track temp must have been over 50DegC.

    I ran it hard with the aircon on as well (bit of comfort). I found that after 3 laps, the temp slowly moved from 80DegC to 90DegC. After 6 laps, it reached above 90DegC and the aircon automatically cut out. I did not back off as I wanted to see what the temps would do. From then, the temp actually backed down to 85DegC and remained for the remainder of the session (around 10 laps). Note that I was in Sports Plus and I was really lighting it up on the Northern F1 track with speeds ranging from 50km/h through to 200km/h and keeping it in the red line.

    I found that the same punishment at 32DegC a couple of months ago, the needle remained constant in the middle.

    As an anecdote, a week ago in the empty quarter, we opened up to over 250 with an ambient of 48DegC and the needle remained constant in the middle at 80DegC.

    My conclusion is that short bursts where the gearbox and engine are highly loaded on short tracks will see the water temp rising from about 35DegC. I have written this off to be normal for this design of vehicle.

    Cheers

    Pez
    Barrier Reef Adventure Triker (BRAT)
    Maggie Island - Queensland - Oz
    Al Keramah - Abu Dhabi - UAE

    "Adventure before Dementia"

  13. #33
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Hey Pez, have I seen you at the track with the Porsche Club? I can't recall a blue CS with Abu Dhabi plates....but still wondering if we talked at the track before (Red Gen 1 CS, Daniel).

    Certainly it seems shorter tracks seem to amplify the issue, and long high speed runs with PDK guys gave no issues which fits in with what was said above by BRAT.

    It appears to be worse for the early Gen 2 997's, and a friend after fitting the center rad on his 997S noticed an immediate change in temps when doing some hard driving.
    '06 GR CS: Short shifter, SC, PASM, Cartronic remap, AASCO LWFW, Clutch Masters FX300 clutch & pressure plate, Improved AOS, Borla XR-1, Pagids, SS brake lines, Brembo GT Big Brake kit (6-pot 355mm front & 4-pot 345mm rear) GT3 brake ducts, IPD race plenum, 82mm GT3 TB, 19" OZ Ultralegerra HLT's, H&R Springs & Spacers 7F/14R, Voltphreaks VPR-P6 Li-Ion battery, Silver hood crest, LED lights and.....De-Snork.

  14. #34
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Hiya Daniel,

    Your memory is fading - I remember discussing with you two PCUAE sessions ago where I managed to overtake you on the shortened back straight out of Laguna Seca. We discussed the virtues of the PDK on GenII vehicles over your manual GenI CS. Since then, my CS has taken on new pads, ducts and we now run Motul 660 in the lines - breaking is down to less than 100m off the straights and we are struggling to use all the breaking available now.

    Interestingly, during that session in early spring, the temps remained fine, whereas, last week they climbed - the heat in the desert during Summer is a real bummer.

    Fancy getting together for the next session at Yas on 4th August - 9pm to midnight? Track should be empty and temperatures well down? They have also swithced to the Northern Track which is much better.

    Cheers

    Pez
    Barrier Reef Adventure Triker (BRAT)
    Maggie Island - Queensland - Oz
    Al Keramah - Abu Dhabi - UAE

    "Adventure before Dementia"

  15. #35
    Dunebasher's Avatar
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Quote Originally Posted by BRAT View Post
    Hiya Daniel,

    Your memory is fading - I remember discussing with you two PCUAE sessions ago where I managed to overtake you on the shortened back straight out of Laguna Seca. We discussed the virtues of the PDK on GenII vehicles over your manual GenI CS. Since then, my CS has taken on new pads, ducts and we now run Motul 660 in the lines - breaking is down to less than 100m off the straights and we are struggling to use all the breaking available now.

    Interestingly, during that session in early spring, the temps remained fine, whereas, last week they climbed - the heat in the desert during Summer is a real bummer.

    Fancy getting together for the next session at Yas on 4th August - 9pm to midnight? Track should be empty and temperatures well down? They have also swithced to the Northern Track which is much better.

    Cheers

    Pez
    I got your message.

    I thought it was you, but couldn't remember AUH plates on your car

    My tyres have been screwed already for several sessions, with the last one resulting in a blowout on the support pit straight and before that on a different set they were old and squirmy. So to be honest I have not had a good hard drive out since last year.....which is why I let so many cars pass

    I would love to get a proper set of tyres and head out with you, but my wife would kill me at the moment as I just spent money on an IPD plenum and GT3 throttle body and our birthday's this month.

    Hopefully after the temps drop and I fit some new rubber then I'll give you a proper run. Once I've got new rubber and the temps are down I hope to get a few more sessions in before moving back to Europe and then they'll be no "overtaking", especially not on the straights

    Oh if you want I have some GT3 brake ducts for sale, as I bought a load of spares in Europe. I got them for friends because they cost 750 dhs each over here, compared to me picking them up for 180 dhs from the local dealer in Holland.
    Last edited by Dunebasher; 07-24-2011 at 12:14 AM.
    '06 GR CS: Short shifter, SC, PASM, Cartronic remap, AASCO LWFW, Clutch Masters FX300 clutch & pressure plate, Improved AOS, Borla XR-1, Pagids, SS brake lines, Brembo GT Big Brake kit (6-pot 355mm front & 4-pot 345mm rear) GT3 brake ducts, IPD race plenum, 82mm GT3 TB, 19" OZ Ultralegerra HLT's, H&R Springs & Spacers 7F/14R, Voltphreaks VPR-P6 Li-Ion battery, Silver hood crest, LED lights and.....De-Snork.

  16. #36
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Dunebasher: PM me more info about the gt3 brake ducts.. in what way will it benefit me? I might snatch it off your hands.
    2010 Porsche Cayman S PDK

  17. #37
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Hiya D,

    I recently installed upgraded brake ducts (only cost DHS200) - I think that these were GT3 but may be incorrect. The expensive ones seem to be GT2 or RS ducts with cost a mint. Do you have such? Drop me part no's so that I can check? Call me 0557801199.

    Cheers P
    Barrier Reef Adventure Triker (BRAT)
    Maggie Island - Queensland - Oz
    Al Keramah - Abu Dhabi - UAE

    "Adventure before Dementia"

  18. #38
    Dunebasher's Avatar
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Quote Originally Posted by BRAT View Post
    Hiya D,

    I recently installed upgraded brake ducts (only cost DHS200) - I think that these were GT3 but may be incorrect. The expensive ones seem to be GT2 or RS ducts with cost a mint. Do you have such? Drop me part no's so that I can check? Call me 0557801199.

    Cheers P
    No it was the stock GT3 ones and I got the price from Nabooda! Normally with my discount the prices are from them are very good, but these items as special order were crazy. Strangely my "Motorsport" AOS was cheaper to buy here with my discount than in Europe. Maybe Ali & Sons have got their pricing correct then for the ducts! Anyway overall it saved some small change

    I'll save your number
    '06 GR CS: Short shifter, SC, PASM, Cartronic remap, AASCO LWFW, Clutch Masters FX300 clutch & pressure plate, Improved AOS, Borla XR-1, Pagids, SS brake lines, Brembo GT Big Brake kit (6-pot 355mm front & 4-pot 345mm rear) GT3 brake ducts, IPD race plenum, 82mm GT3 TB, 19" OZ Ultralegerra HLT's, H&R Springs & Spacers 7F/14R, Voltphreaks VPR-P6 Li-Ion battery, Silver hood crest, LED lights and.....De-Snork.

  19. #39
    Dunebasher's Avatar
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    Re: Gen 2/DFI/PDK engine overheating problems during DE

    Quote Originally Posted by DrKareem View Post
    Dunebasher: PM me more info about the gt3 brake ducts.. in what way will it benefit me? I might snatch it off your hands.
    Doc you can info on the brake ducts here in this article. You may find them just as cheap at your local dealer TBH, and I only got load of them due to the price quoted for them by the Dubai dealer. I had some other parts to pick up in Europe anyway which is also why I got a few more sets.
    '06 GR CS: Short shifter, SC, PASM, Cartronic remap, AASCO LWFW, Clutch Masters FX300 clutch & pressure plate, Improved AOS, Borla XR-1, Pagids, SS brake lines, Brembo GT Big Brake kit (6-pot 355mm front & 4-pot 345mm rear) GT3 brake ducts, IPD race plenum, 82mm GT3 TB, 19" OZ Ultralegerra HLT's, H&R Springs & Spacers 7F/14R, Voltphreaks VPR-P6 Li-Ion battery, Silver hood crest, LED lights and.....De-Snork.

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