EvolutionM - Mitsubishi Lancer and Lancer Evolution Community

Notices
Evo Engine / Turbo / Drivetrain Everything from engine management to the best clutch and flywheel.

2005 Stock Boost Spiking (2004 Also)

Thread Tools
 
Search this Thread
 
Old Jan 30, 2005 | 07:44 PM
Share
  #1  
ERGO EVO's Avatar
ERGO EVO
Thread Starter
Newbie
 
Joined: Jan 2005
Posts: 57
Likes: 0
2005 Stock Boost Spiking (2004 Also)
Hi all,

Any 2005 owners noticed what psi your boost spikes to and how long it holds it? 2004 guys, feel free to chime in as a point of reference.
Reply
0
Old Jan 30, 2005 | 08:40 PM
Share
  #2  
EVOTEXAS's Avatar
EVOTEXAS
Evolved Member
iTrader: (12)
 
Joined: Dec 2003
Posts: 2,111
Likes: 2
From: Texas
Spiking is dependent on a lot of things. Start your pull at 2K and you won't spike. Start at 4K and you likely will. Weather can also affect spiking. Don't worry if you are.
Reply
0
Old Jan 30, 2005 | 09:12 PM
Share
  #3  
ERGO EVO's Avatar
ERGO EVO
Thread Starter
Newbie
 
Joined: Jan 2005
Posts: 57
Likes: 0
Originally Posted by EVOTEXAS
Spiking is dependent on a lot of things. Start your pull at 2K and you won't spike. Start at 4K and you likely will. Weather can also affect spiking. Don't worry if you are.
I agree with all this, but you made no mention of what an "acceptable" spike is. Weather or no weather, there's a limit of what is "normal" operation.
Reply
0
Old Jan 30, 2005 | 10:56 PM
Share
  #4  
EVOTEXAS's Avatar
EVOTEXAS
Evolved Member
iTrader: (12)
 
Joined: Dec 2003
Posts: 2,111
Likes: 2
From: Texas
Originally Posted by ERGO EVO
I agree with all this, but you made no mention of what an "acceptable" spike is. Weather or no weather, there's a limit of what is "normal" operation.
Are you spiking to 30 psi or something? Why don't you tell us what you are spiking to.
Reply
0
Old Jan 30, 2005 | 10:58 PM
Share
  #5  
ERGO EVO's Avatar
ERGO EVO
Thread Starter
Newbie
 
Joined: Jan 2005
Posts: 57
Likes: 0
Originally Posted by EVOTEXAS
Are you spiking to 30 psi or something? Why don't you tell us what you are spiking to.
Fair enough. 1.6 bar. The duration it stays between 1.5 and 1.6 varies. Sometimes it's a split second, other times it's a full second or two.
Reply
0
Old Jan 30, 2005 | 11:03 PM
Share
  #6  
EVOTEXAS's Avatar
EVOTEXAS
Evolved Member
iTrader: (12)
 
Joined: Dec 2003
Posts: 2,111
Likes: 2
From: Texas
Do you have any mods?
Reply
0
Old Jan 30, 2005 | 11:04 PM
Share
  #7  
ERGO EVO's Avatar
ERGO EVO
Thread Starter
Newbie
 
Joined: Jan 2005
Posts: 57
Likes: 0
Originally Posted by EVOTEXAS
Do you have any mods?

No...the car is not and will not be modded. One control variable is digital gauge accuracy. I have to do a bit more legwork into the resolution and display trends.
Reply
0

Trending Topics

Old Jan 30, 2005 | 11:06 PM
Share
  #8  
EVOTEXAS's Avatar
EVOTEXAS
Evolved Member
iTrader: (12)
 
Joined: Dec 2003
Posts: 2,111
Likes: 2
From: Texas
Originally Posted by ERGO EVO
No...the car is not and will not be modded. One control variable is digital gauge accuracy. I have to do a bit more legwork into the resolution and display trends.
Your gauge is reading high. There is nothing wrong with the spike, it is within acceptable limits. You're reading about 22 psi when it should be reading about 19-20.
Reply
0
Old Jan 30, 2005 | 11:09 PM
Share
  #9  
ERGO EVO's Avatar
ERGO EVO
Thread Starter
Newbie
 
Joined: Jan 2005
Posts: 57
Likes: 0
Originally Posted by EVOTEXAS
Your gauge is reading high. There is nothing wrong with the spike, it is within acceptable limits. You're reading about 22 psi when it should be reading about 19-20.
Actually 23.2 psi. That seems a bit high to be entirely error. Perhaps half of that deviation from 20.31 psi is due to the gauge, but I'd need to test some more.
Reply
0
Old Jan 31, 2005 | 05:21 AM
Share
  #10  
EVOTEXAS's Avatar
EVOTEXAS
Evolved Member
iTrader: (12)
 
Joined: Dec 2003
Posts: 2,111
Likes: 2
From: Texas
Originally Posted by ERGO EVO
Actually 23.2 psi. That seems a bit high to be entirely error. Perhaps half of that deviation from 20.31 psi is due to the gauge, but I'd need to test some more.
What are you using to monitor boost?
Reply
0
Old Jan 31, 2005 | 05:37 AM
Share
  #11  
ERGO EVO's Avatar
ERGO EVO
Thread Starter
Newbie
 
Joined: Jan 2005
Posts: 57
Likes: 0
Originally Posted by EVOTEXAS
What are you using to monitor boost?
Defi Link BF boost gauge, its peak memory function, and its three minutes of recording.
Reply
0
Old Jan 31, 2005 | 06:37 AM
Share
  #12  
EVOTEXAS's Avatar
EVOTEXAS
Evolved Member
iTrader: (12)
 
Joined: Dec 2003
Posts: 2,111
Likes: 2
From: Texas
Oh you started that other thread, too. Ok. Yep, looks like a gauge problem, lol!
Reply
0
Old Jan 31, 2005 | 06:40 AM
Share
  #13  
ERGO EVO's Avatar
ERGO EVO
Thread Starter
Newbie
 
Joined: Jan 2005
Posts: 57
Likes: 0
Originally Posted by EVOTEXAS
Oh you started that other thread, too. Ok. Yep, looks like a gauge problem, lol!

God, how could the gauge be that far off? It's not a POS by any means.
Reply
0
Old Jan 31, 2005 | 06:52 AM
Share
  #14  
EVOTEXAS's Avatar
EVOTEXAS
Evolved Member
iTrader: (12)
 
Joined: Dec 2003
Posts: 2,111
Likes: 2
From: Texas
Originally Posted by ERGO EVO
God, how could the gauge be that far off? It's not a POS by any means.
Maybe they have some calibration issues from the factory. Keep in mind that price does not indicate quality. BMW's are pieces of crap!
Reply
0
Old Jan 31, 2005 | 06:57 AM
Share
  #15  
ERGO EVO's Avatar
ERGO EVO
Thread Starter
Newbie
 
Joined: Jan 2005
Posts: 57
Likes: 0
Originally Posted by EVOTEXAS
Maybe they have some calibration issues from the factory. Keep in mind that price does not indicate quality. BMW's are pieces of crap!
Enough speculation and conjecture...I'd like to hear some facts, bench tests, gauge comparisons, etc.
Reply
0



Advanced Search

All times are GMT -7. The time now is 12:49 PM.