TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

If I install a front mount intercooler?

Thread Tools
 
Search this Thread
 
Old 02-08-2002, 09:08 AM
  #31  
Junior Member
 
Philbertt's Avatar
 
Join Date: Feb 2001
Posts: 851
Likes: 0
Received 0 Likes on 0 Posts
Default

the wastgate, or bypass valve opens to release excess exhaust pressure
Old 02-08-2002, 09:11 AM
  #32  
Member
 
hoTTub's Avatar
 
Join Date: Oct 2000
Posts: 17,278
Likes: 0
Received 1 Like on 1 Post
Default enter MR Wastegate........

When a wastegate is closed, all exhaust is routed through the turbine and powers the turbo.

When the ECU determines it has reached the requested boost level, the wastegate opens and allows exhaust gases to be rerouted around the turbo and straight down the exhaust.

The wastegate will not allow the turbo to spool any faster than designed.
Old 02-08-2002, 09:11 AM
  #33  
Member
 
ross@downforce.net's Avatar
 
Join Date: Feb 2001
Posts: 2,040
Likes: 0
Received 0 Likes on 0 Posts
Default

nope - thats what the wastegate is for
Old 02-08-2002, 09:12 AM
  #34  
Member
 
ross@downforce.net's Avatar
 
Join Date: Feb 2001
Posts: 2,040
Likes: 0
Received 0 Likes on 0 Posts
Default

hmmmm....sounds familiar
Old 02-08-2002, 09:15 AM
  #35  
Member
 
CarTTman's Avatar
 
Join Date: May 2000
Posts: 3,785
Likes: 0
Received 0 Likes on 0 Posts
Default

Does it control the rate of spool-up? Assuming stock ECU.
Old 02-08-2002, 09:20 AM
  #36  
Member
 
ross@downforce.net's Avatar
 
Join Date: Feb 2001
Posts: 2,040
Likes: 0
Received 0 Likes on 0 Posts
Default it can - in other words it can change when it startes to bleed

exhaust gases - supposedly one of the benfits of the old style bleeder screw type manual wastegate adjusters was that they would allow the turbo to spool quickly and then bleed as opposed to a more linear approach - but with an ECU - I doubt there is anything an electronically controlled wastegate couldn't do as well...
Old 02-08-2002, 09:22 AM
  #37  
Junior Member
 
Philbertt's Avatar
 
Join Date: Feb 2001
Posts: 851
Likes: 0
Received 0 Likes on 0 Posts
Default yeah, as the air is compressed by the turbo, it heats up. the intercooler then cools it

<center><img src="http://static.howstuffworks.com/gif/turbo-plumbing.gif"></center><p>so that more dense air (more molecules) are available for the engine.

here's a diagram i found on howstuffworks which is a great site.

quick question: how do i alter the pic/text ordering so the image isn't always at the top of the message? also, how do you use text in the middle of a paragraph to be the link text?
Old 02-08-2002, 09:27 AM
  #38  
Member
 
CarTTman's Avatar
 
Join Date: May 2000
Posts: 3,785
Likes: 0
Received 0 Likes on 0 Posts
Default

Do you know if it does on the TT (stock)?
Old 02-08-2002, 09:30 AM
  #39  
Member
 
hoTTub's Avatar
 
Join Date: Oct 2000
Posts: 17,278
Likes: 0
Received 1 Like on 1 Post
Default

yes....wastegate is what *regulates* boost
Old 02-08-2002, 09:33 AM
  #40  
Member
 
ross@downforce.net's Avatar
 
Join Date: Feb 2001
Posts: 2,040
Likes: 0
Received 0 Likes on 0 Posts
Default I assume so (because it is controlled electronically by the ECU)

Stock tends to be very controlled in terms of any curves associated with power delivery (artificially limiting peaks etc.)
The tuners could probably answer this - because I would guess this would be one of the paramaters they would change when remapping an ECU...


Quick Reply: If I install a front mount intercooler?



All times are GMT -8. The time now is 01:37 PM.