Posted: Mon Nov 04, 2019 9:58 pm Post subject: who is running a solid flywheel on a turbo
hi all i had a lightened ( solid ) flywheel fitted to my 996 turbo last year and love the way it drives engine feels much more like what i would imagine a 911 engine to be like but ...
i do have a problem with the engine stalling seems every time i come to a set of traffic lights it just wants to stall does anyone actually run one in a daily ? as i would like to start using the car more often
i was thinking of getting the idle increased slightly but not sure if this would actually help
any help would be appreciated
thanks _________________ mk2 996 turbo
porsche 996 .jpg
Description:
pic because why not
Filesize:
104.1 KB
Viewed:
899 Time(s)
Martin996RSR Nürburgring
Joined: 08 Dec 2016 Posts: 419
Posted: Tue Nov 05, 2019 12:07 pm Post subject:
When I bought my 996 c2 I was told it had a lightweight flywheel and that this was why it was so easy to stall when parking etc. It turned out it was a vacuum leak that was causing it to stall so easily, and when I changed the clutch & flywheel, I found it was a normal dual mass one.
I think you may be able to determine if you have a vaccuum leak by checking your fuel trim with a computer, but I'm not certain. Hopefully Demort will be along soon and will be able to help you.
pauluk996turbo Spa-Francorchamps
Joined: 27 Nov 2010 Posts: 281 Location: Berkshire
thanks for the reply but i do defiantly have a solid flywheel as i has it fitted when i had the clutch changed
in terms of vacuum leak may be worth a check as it does stall very easy and maybe the mechanic broke something when fitting the clutch _________________ mk2 996 turbo
Martin996RSR Nürburgring
Joined: 08 Dec 2016 Posts: 419
Posted: Tue Nov 05, 2019 4:43 pm Post subject:
Yep, I wasn't suggesting you don't have a LWFW, just that you might want to investigate the possibility of a vacuum leak. Are you getting all the boost that you should be? A vacuum leak becomes a boost leak under boost remember.
MisterCorn Dijon
Joined: 08 Jan 2011 Posts: 7303 Location: Nottingham, England
I had the tickover speed raised and a small hole drilled in the throttle butterfly. Depending on the tune it seems that the revs can fall so quickly that the idle speed control is too slow to react and can't catch it before it stalls. Once sorted mine was 100% stall free.
MC
Billy Bumpsteer Monza
Joined: 12 Aug 2019 Posts: 153
Posted: Tue Nov 05, 2019 7:35 pm Post subject:
It shouldn't stall, and if you have one its obvious if you have driven Porsche with them before.
pauluk996turbo Spa-Francorchamps
Joined: 27 Nov 2010 Posts: 281 Location: Berkshire
Yep, I wasn't suggesting you don't have a LWFW, just that you might want to investigate the possibility of a vacuum leak. Are you getting all the boost that you should be? A vacuum leak becomes a boost leak under boost remember.
yes boosting very well around 0.8-0.9 boost might have to pay desgin 911 a visit as its one of there flywheels and just to see if they can confirm its acting as it should _________________ mk2 996 turbo
pauluk996turbo Spa-Francorchamps
Joined: 27 Nov 2010 Posts: 281 Location: Berkshire
I had the tickover speed raised and a small hole drilled in the throttle butterfly. Depending on the tune it seems that the revs can fall so quickly that the idle speed control is too slow to react and can't catch it before it stalls. Once sorted mine was 100% stall free.
MC
thanks for the reply ! may i ask who done it for you ? it currently has a desgin 911 map on the car if that helps at all _________________ mk2 996 turbo
The common one is as you approach the traffic lights you put it into neutral -
Car will then stall as the flywheel will not be heavy enough to keep the engine going - just in case this is how you are driving. _________________ nineexcellence.com
Tel: 01293 226911. Follow us on Facebook www.facebook.com/Nineexcellence
SALES, SERVICE, UPGRADES
MisterCorn Dijon
Joined: 08 Jan 2011 Posts: 7303 Location: Nottingham, England
I had the tickover speed raised and a small hole drilled in the throttle butterfly. Depending on the tune it seems that the revs can fall so quickly that the idle speed control is too slow to react and can't catch it before it stalls. Once sorted mine was 100% stall free.
MC
thanks for the reply ! may i ask who done it for you ? it currently has a desgin 911 map on the car if that helps at all
My car is looked after by Matt at Fearnsport. The other option is to keep your foot very slightly on the throttle as the revs drop, but that isn't anywhere near as easy.
MC
pauluk996turbo Spa-Francorchamps
Joined: 27 Nov 2010 Posts: 281 Location: Berkshire
I had the tickover speed raised and a small hole drilled in the throttle butterfly. Depending on the tune it seems that the revs can fall so quickly that the idle speed control is too slow to react and can't catch it before it stalls. Once sorted mine was 100% stall free.
MC
thanks for the reply ! may i ask who done it for you ? it currently has a desgin 911 map on the car if that helps at all
My car is looked after by Matt at Fearnsport. The other option is to keep your foot very slightly on the throttle as the revs drop, but that isn't anywhere near as easy.
i have tried that and cannot do it but i called fearnsport this morning a seem to be great guys they have advised me about drilling the throttle body valve which i will do when the car returns and ive also arrange to take my car up to them for a complete once over and a suspension setup _________________ mk2 996 turbo
All times are GMT - 12 Hours
Page 1 of 1
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You can attach files in this forum You can download files in this forum You cannot post calendar events in this forum
![Porsche 911 [992]](./images/models/Model-992.gif)
![Porsche 911 [991]](./images/models/Model-991.gif)
![Porsche 911 [997]](./images/models/Model-997.gif)
![Porsche 911 [GT]](./images/models/Model-GT.png)
![Porsche 911 [996]](./images/models/Model-996.gif)
![Porsche 911 [993]](./images/models/Model-993.gif)
![Porsche 911 [RS]](./images/models/Model-RS.gif)
![Porsche 911 [964]](./images/models/Model-964.gif)
![Porsche 911 [Early]](./images/models/Model-Early.gif)
but i called fearnsport this morning a seem to be great guys they have advised me about drilling the throttle body valve which i will do when the car returns and ive also arrange to take my car up to them for a complete once over and a suspension setup