997 2005-2012 911 C2, C2S, C4, C4S, GTS, Targa and Cabriolet Model Discussion.
Sponsored by:
Sponsored by: CARiD

Change the speed at which the spoiler comes out?

Thread Tools
 
Search this Thread
 
Rate Thread
 
  #1  
Old 02-22-2008 | 06:33 PM
Dominique997SC's Avatar
Thread Starter
|
Awaiting Email Confirmation
Joined: Feb 2008
Posts: 161
From: left this forum!
Rep Power: 0
Dominique997SC is infamous around these parts
Change the speed at which the spoiler comes out?

Is it possible to change a setting (by the dealer) so the spoiler pops out sooner? I think it's 80mph now but it would be fun if it did at 50 or 60mph.
 
  #2  
Old 02-22-2008 | 06:34 PM
trovan's Avatar
Registered User
Joined: Sep 2004
Posts: 2,959
From: SoCal
Rep Power: 142
trovan is just really nicetrovan is just really nicetrovan is just really nicetrovan is just really nice
i don't think that is possible, at least not heard of it.
 
  #3  
Old 02-22-2008 | 06:40 PM
WaltB's Avatar
Registered User
Joined: Nov 2007
Posts: 462
From: Dallas
Rep Power: 62
WaltB has a reputation beyond reputeWaltB has a reputation beyond reputeWaltB has a reputation beyond reputeWaltB has a reputation beyond reputeWaltB has a reputation beyond reputeWaltB has a reputation beyond reputeWaltB has a reputation beyond reputeWaltB has a reputation beyond reputeWaltB has a reputation beyond reputeWaltB has a reputation beyond reputeWaltB has a reputation beyond repute
You can simply extend it electrically with the pushbutton.
Some folks drive with it out all the time since they feel the car looks better with it extended.
Aerodynamically I think it comes out when it does for the purpose it was designed. (Increased down force on the rear end) To bring it out early just adds unneeded parasite drag.
 
  #4  
Old 02-22-2008 | 07:04 PM
Dominique997SC's Avatar
Thread Starter
|
Awaiting Email Confirmation
Joined: Feb 2008
Posts: 161
From: left this forum!
Rep Power: 0
Dominique997SC is infamous around these parts
Originally Posted by 2006997C4SCab
To bring it out early just adds unneeded parasite drag.
and that's the reason I want it to come out at 60mph by itself... instead of being out there all the time... btw, I think the car looks better when it's down
 
  #5  
Old 02-23-2008 | 01:44 AM
RandomName's Avatar
Registered User
Joined: Oct 2007
Posts: 573
From: Orange County
Rep Power: 40
RandomName is infamous around these parts
There is only one way to resolve this problem:

DRIVE FASTER. come on man, haven't you heard 80 is the new 60?
 
  #6  
Old 02-23-2008 | 08:10 AM
LIL RAJA's Avatar
Registered User
Joined: Nov 2003
Posts: 7,049
From: Bangladesh/Herndon VA & DC
Rep Power: 320
LIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant future
Originally Posted by Dominique997SC
and that's the reason I want it to come out at 60mph by itself... instead of being out there all the time... btw, I think the car looks better when it's down
hey so as soon as you hit 60mph, hit the switch real quick.
Everyone on the outside would think it came up at 60mph.

Thinking from a software engineering prespective, i don't see it being hard changin to another speed. But how to do it? I don't know or do not have a clue.

Raja
 
  #7  
Old 02-23-2008 | 09:41 AM
printemps2001's Avatar
Registered User
Joined: Sep 2007
Posts: 459
From: Connecticut
Rep Power: 36
printemps2001 is infamous around these parts
If memory serves, it raises at 75mph and retracts at 26 mph. Details are in the owner's manual. Ask your dealer if it can be adjusted with PIWIS.
 
  #8  
Old 02-23-2008 | 10:37 AM
Maddog78's Avatar
Registered User
Joined: Feb 2008
Posts: 70
From: BC
Rep Power: 19
Maddog78 is infamous around these parts
Engine compartment temp under 122F/55C Raises at 75mph/120kmh. Retracts at 37mph/60kmh
Engine compartment temp over 140F/60C Raises at 50mph/80kmh Retracts at 19mph/30kmh


So there you go, if it's warmed up, it's already raising at 50 mph.
 
  #9  
Old 02-23-2008 | 11:21 AM
1999Porsche911's Avatar
Registered User
Joined: Aug 2004
Posts: 2,134
From: Chicagoland
Rep Power: 122
1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future
Originally Posted by Maddog78
Engine compartment temp under 122F/55C Raises at 75mph/120kmh. Retracts at 37mph/60kmh
Engine compartment temp over 140F/60C Raises at 50mph/80kmh Retracts at 19mph/30kmh


So there you go, if it's warmed up, it's already raising at 50 mph.
That's a pretty hot engine compartment temperature on a moving car. However, IF what you say is true about the spoiler coming up sooner when the engine compartment sensor hits 140F+, then all you have to do is put an inline resister on the the sensor wiring, increasing resistance and therefore fooling the computer into thinking it is warmer than it is. This will also lower the temperature at which point the engine fan kicks on, but will not effect anything else.
 
  #10  
Old 02-23-2008 | 12:44 PM
Maddog78's Avatar
Registered User
Joined: Feb 2008
Posts: 70
From: BC
Rep Power: 19
Maddog78 is infamous around these parts
I got that straight out of the manual.
 
  #11  
Old 02-23-2008 | 02:25 PM
mdrums's Avatar
Registered User
Joined: Jul 2006
Posts: 3,802
From: Tampa
Rep Power: 233
mdrums Is a GOD !mdrums Is a GOD !mdrums Is a GOD !mdrums Is a GOD !mdrums Is a GOD !mdrums Is a GOD !mdrums Is a GOD !mdrums Is a GOD !mdrums Is a GOD !mdrums Is a GOD !mdrums Is a GOD !
Originally Posted by 1999Porsche911
That's a pretty hot engine compartment temperature on a moving car. However, IF what you say is true about the spoiler coming up sooner when the engine compartment sensor hits 140F+, then all you have to do is put an inline resister on the the sensor wiring, increasing resistance and therefore fooling the computer into thinking it is warmer than it is. This will also lower the temperature at which point the engine fan kicks on, but will not effect anything else.
Interesting and seems like a cool hack. Now is anyone here skilled enough to find the correct wire and pick out the correct resister?
 
  #12  
Old 02-23-2008 | 03:14 PM
Dominique997SC's Avatar
Thread Starter
|
Awaiting Email Confirmation
Joined: Feb 2008
Posts: 161
From: left this forum!
Rep Power: 0
Dominique997SC is infamous around these parts
Originally Posted by 1999Porsche911
That's a pretty hot engine compartment temperature on a moving car. However, IF what you say is true about the spoiler coming up sooner when the engine compartment sensor hits 140F+, then all you have to do is put an inline resister on the the sensor wiring, increasing resistance and therefore fooling the computer into thinking it is warmer than it is. This will also lower the temperature at which point the engine fan kicks on, but will not effect anything else.
I want to trust you on this but screwing with temperature readings seems like a don't... unless I can be a 100% sure you're right! I'll ask the dealer is they can change it on the PIWIS system... I'll post the answer here for those who are interested.

Thank you all for the feedback
 
  #13  
Old 02-23-2008 | 04:05 PM
1999Porsche911's Avatar
Registered User
Joined: Aug 2004
Posts: 2,134
From: Chicagoland
Rep Power: 122
1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future1999Porsche911 has a brilliant future
Sorry, I forgot that Porsche is using a negative temperature coefficient sensor to measure the engine compartment temperature, so my idea will not work in this case.
 

Last edited by 1999Porsche911; 02-23-2008 at 04:37 PM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
COBB Tuning
Automobiles For Sale
18
01-29-2022 09:42 AM
SharkyShark20
Automobiles For Sale
4
09-19-2015 09:54 PM
Sales@RSW
GT3/GT2
7
09-03-2015 09:34 AM
00aston
Aston Martin
17
08-27-2015 12:01 AM
vividracing
Nissan GTR
0
08-19-2015 02:11 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Change the speed at which the spoiler comes out?



All times are GMT -6. The time now is 12:30 PM.