Notices
Evo X Engine Management / Tuning Forums Discuss the major engine management systems.

Help, Cobb Stage 2 breaking up at high RPM

Thread Tools
 
Search this Thread
 
Old Nov 10, 2009 | 07:34 PM
  #31  
Ruff Ryda's Avatar
Thread Starter
Evolving Member
iTrader: (13)
 
Joined: Apr 2007
Posts: 281
Likes: 0
From: Harrisburg, IL
One more log 3rd and forth gear. You can see the over boost after shifting to 4th.
Attached Files
File Type: doc
3rd 4th gear pull.doc (3.0 KB, 0 views)
Reply
Old Nov 17, 2009 | 09:56 AM
  #32  
Ruff Ryda's Avatar
Thread Starter
Evolving Member
iTrader: (13)
 
Joined: Apr 2007
Posts: 281
Likes: 0
From: Harrisburg, IL
I think I might have a idea what I'm hearing when I thought my car was breaking up at high RPM. I was looking through some of the DIY threads and came across an OEM exhaust mod. I was looking at the exhaust flapper and wondering if the fluttering sound that I'm hearing from my exhaust is not breakup but the rapid opening and closing of this flapper valve.

From what people have told me, my logs look fine(other than slight overboost) so I'm wondering if anyone would/could lend me some advise.
If any of you are running the same setup as me(stg2 with stock exhaust) take a listen and see what you think and LMK.
Reply
Old Nov 18, 2009 | 12:03 AM
  #33  
hakkoo's Avatar
Newbie
iTrader: (1)
 
Joined: Oct 2009
Posts: 44
Likes: 0
From: West Hills, CA
id say if youre having troubles with the cobb maps. save up some money and get a tune
Reply
Old Nov 19, 2009 | 06:10 AM
  #34  
mrMTB's Avatar
Evolved Member
iTrader: (13)
 
Joined: May 2006
Posts: 779
Likes: 0
From: Seattle, WA
https://www.evolutionm.net/forums/7640899-post2.html

This will fix that pesky exhaust problem. Did this last week - car has a little lower grumble to it, but I can't notice a difference in noise in cruise.
Reply
Old Nov 19, 2009 | 08:02 AM
  #35  
Ruff Ryda's Avatar
Thread Starter
Evolving Member
iTrader: (13)
 
Joined: Apr 2007
Posts: 281
Likes: 0
From: Harrisburg, IL
Originally Posted by mrMTB
https://www.evolutionm.net/forums/7640899-post2.html

This will fix that pesky exhaust problem. Did this last week - car has a little lower grumble to it, but I can't notice a difference in noise in cruise.
Thanks for the link! I'll be doing this soon!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
byebyesubbie
Vendor Service / Parts / Tuning Review
40
Sep 15, 2016 06:25 AM
maknuge
Evo Engine / Turbo / Drivetrain
13
Nov 20, 2015 02:58 PM
LimitedSlip7
Evo X General
9
Apr 2, 2013 08:35 AM
BostonEvo
ECU Flash
5
Mar 29, 2009 03:16 PM




All times are GMT -7. The time now is 07:12 AM.