2010 2011 BMW 5 Series Forum F10
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
 

2010 2011 BMW 5 Series Forum F10 BMW 5-Series (F10) Forums General 5-Series Sedan and Wagon (F10 / F11) Forum turbo cars vs naturally aspirated
Post Reply
 
Thread Tools Search this Thread
      05-17-2013, 12:57 PM   #1
ajandhek
Private First Class
1

 
Drives: none
Join Date: Jun 2012
Location: pittsburgh


Posts: 157
iTrader: (0)

turbo cars vs naturally aspirated

the f10 is my 2nd turbo car my first was an evo..and to me it seems like it depends on the day and humidity the car adapts to the weather...the cooler the faster the hotter the slower and jus some normal days it feels like it lags.now my brother has an m5 and any day of the week hot or cold it doesn't seem to hesitate any thoughts?
Appreciate 0
      05-17-2013, 02:28 PM   #2
williamNJ
New Member
1

 
Drives: 14 Cayman S, 13 RRSport, 11 A4
Join Date: May 2013
Location: NJ


Posts: 9
iTrader: (0)

Quote:
Originally Posted by ajandhek View Post
the f10 is my 2nd turbo car my first was an evo..and to me it seems like it depends on the day and humidity the car adapts to the weather...the cooler the faster the hotter the slower and jus some normal days it feels like it lags.now my brother has an m5 and any day of the week hot or cold it doesn't seem to hesitate any thoughts?
M5 is M
Appreciate 0
      05-17-2013, 05:23 PM   #3
COBodom
Private
1

 
COBodom's Avatar
 
Drives: 2012 528xi
Join Date: Dec 2012
Location: US


Posts: 88
iTrader: (0)

Cars that I’ve had in the past, whether turbo or naturally aspirated, seemed to have performed better in colder weather. Not talking about sub zero temperatures, but NY/FL summer seems to make the car lazy.

On the other hand though it could be just a perception, not sure….

Just like after driving the car forever in NYC traffic then taking it for long distance trip and flooring it a few times the car just seems more responsive.
__________________
Vincent: What's more chickenshit than f&^*ing with a man's automobile? I mean, don't f^%k with another man's vehicle.
Lance:
You don't do it.
Vincent: It's just against the rules.
Appreciate 0
      05-17-2013, 05:49 PM   #4
Richard Cranium
Private
0

 
Drives: It's a truck
Join Date: Jul 2012
Location: Toronto


Posts: 78
iTrader: (0)

Hot air I less dense and thus holds less fuel. Any car will have a performance difference hot to cold, it just tends to be a bit more noticeable in an FI car.
Appreciate 0
      05-18-2013, 09:26 AM   #5
JNoSol
Captain
United_States
16

 
JNoSol's Avatar
 
Drives: F06 and F80
Join Date: Feb 2012
Location: Kansas City


Posts: 961
iTrader: (0)

The charged/compressed air in a turbo engine is very hot, compared to the intake air in an N/A engine. It relies on the cooler ambient air temp to chill it off via the intercooler(s). If the outside air is 100 degrees, the intercooler isn't as efficient in cooling off the charged/compressed = less than normal performance from a turbo engine.

Last edited by JNoSol; 05-18-2013 at 09:33 AM.
Appreciate 0
      05-18-2013, 02:43 PM   #6
Aeroav8r
Private First Class
United_States
1

 
Drives: '11 535i
Join Date: Nov 2006
Location: Tustin, CA


Posts: 125
iTrader: (1)

BMW turbo systems adjust for temperature and altitude and will allow more boost to compensate for higher temps and altitude - thus you should 'feel' like you're getting the same power.
__________________
2011 535i
2005 Nissan Titan
2013 Accord LX sedan
Appreciate 0
      05-18-2013, 05:42 PM   #7
dmontg
Private
United_States
0

 
dmontg's Avatar
 
Drives: 2013 MSport 550i
Join Date: Sep 2012
Location: Atlanta, GA


Posts: 62
iTrader: (0)

Are the turbo inter coolers located behind the fog light (m sport) in the channel that also probably cools the front brakes? If that's them, is it a water cooled system? If not, how do it do?

Regards,
__________________
Best regards,
Don M
Appreciate 0
      05-19-2013, 08:29 AM   #8
Richard Cranium
Private
0

 
Drives: It's a truck
Join Date: Jul 2012
Location: Toronto


Posts: 78
iTrader: (0)

Quote:
Originally Posted by TS335i View Post
BMW turbo systems adjust for temperature and altitude and will allow more boost to compensate for higher temps and altitude - thus you should 'feel' like you're getting the same power.
More boost at higher temps would simply mean even more heat so you still wouldn't get more power.
Appreciate 0
      05-22-2013, 06:00 PM   #9
Aeroav8r
Private First Class
United_States
1

 
Drives: '11 535i
Join Date: Nov 2006
Location: Tustin, CA


Posts: 125
iTrader: (1)

Quote:
Originally Posted by Richard Cranium View Post
More boost at higher temps would simply mean even more heat so you still wouldn't get more power.
You're only talking about the compression of air heat, the delta of that only happens for a moment - and the job of the intercooler is to help lower the temp. You're still developing a significant amount of hp regardless of ambient air temp and altitude. It's a very well thought system with a bunch of reserve.
__________________
2011 535i
2005 Nissan Titan
2013 Accord LX sedan
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 09:58 PM.




5post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST