Notices
Evo Dyno Tuning / Results Discuss vendor and member dyno tuning techniques, results and graphs.

Car won't boost past 23.8 psi

Thread Tools
 
Search this Thread
 
Old Apr 28, 2011, 01:13 PM
  #1  
Evolving Member
Thread Starter
iTrader: (5)
 
tdubbz's Avatar
 
Join Date: Nov 2009
Location: New Hampshire
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
Car won't boost past 23.8 psi, Dyno Results HTA Green

Just trying to get some more ideas as to why my car can't boost. I just had my new HTA Green installed along with injectors and a Grimmspeed EBCS and made a 317whp on a dyno dynamics with 1.0 correction. I was a bit dissappointed but the tuner couldn't get the car past 23.8 because it is pulling timing. I know dyno dynamics read lower than some mustang dynos but still....I thought maybe I had a bad tank of 93 but this same issue happened when I orginally had the car tuned for cams/bolt-ons. Tuner may have thought it has something to do with the knock sensor? Had the car checked for boost leaks, compression test, leak down test. Everything seemed fine.... I'm stumped. I have a 25psi WGA and I can't even get to 24psi. I know a lot of guys run 25-27psi on 93 without any problems. Any advice would greatly be appreciated....

mods in sig
Attached Thumbnails Car won't boost past 23.8 psi-img001.jpg   Car won't boost past 23.8 psi-img002.jpg  

Last edited by tdubbz; May 2, 2011 at 09:47 AM.
Old Apr 28, 2011, 01:17 PM
  #2  
Former Sponsor
iTrader: (22)
 
tscompusa2's Avatar
 
Join Date: Oct 2005
Location: pa
Posts: 5,375
Likes: 0
Received 7 Likes on 7 Posts
send me a pm.. sounds like the car has excessive engine noise and both tuners were not experienced enough to know how to fix it. i deal with cars like this all the time.

as for 25 wga only doing 24psi.. its common depending on rod tension.
Old Apr 28, 2011, 01:19 PM
  #3  
Evolved Member
iTrader: (19)
 
zeus1's Avatar
 
Join Date: Sep 2005
Location: manchester, new hampshire
Posts: 1,002
Likes: 0
Received 0 Likes on 0 Posts
who tuned your car and who did the install, you may want to try another shop and tuner or do remote tuning? so if i am reading this correctly you had the same issue with boosting past 23.8 when you just had cams and bolt ons?
Old Apr 28, 2011, 01:20 PM
  #4  
Evolved Member
iTrader: (19)
 
zeus1's Avatar
 
Join Date: Sep 2005
Location: manchester, new hampshire
Posts: 1,002
Likes: 0
Received 0 Likes on 0 Posts
there you go tcomp is offering to help he should sort you out, good luck with your car. also i know a shop in nh with a very experiences evo mechanic (not a tuner though) if you want i can send you his contact info-
Old Apr 28, 2011, 02:09 PM
  #5  
Evolving Member
Thread Starter
iTrader: (5)
 
tdubbz's Avatar
 
Join Date: Nov 2009
Location: New Hampshire
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
[quote=zeus1;9278254]who tuned your car and who did the install, you may want to try another shop and tuner or do remote tuning? so if i am reading this correctly you had the same issue with boosting past 23.8 when you just had cams and bolt ons?[/q

It may not be the shop's fault so out of respect for them I'll leave names out of it. The first shop who tuned the car with the cams/bolt-ons could not tune past 21-22psi, they orginally thought bad 93.
Old Apr 28, 2011, 02:11 PM
  #6  
Evolving Member
Thread Starter
iTrader: (5)
 
tdubbz's Avatar
 
Join Date: Nov 2009
Location: New Hampshire
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by zeus1
there you go tcomp is offering to help he should sort you out, good luck with your car. also i know a shop in nh with a very experiences evo mechanic (not a tuner though) if you want i can send you his contact info-
Ballistic Motorsports? If not shoot me the info. Thanks
Old Apr 28, 2011, 02:47 PM
  #7  
Evolved Member
iTrader: (30)
 
JohnBradley's Avatar
 
Join Date: Jan 2004
Location: Northwest
Posts: 11,396
Received 64 Likes on 48 Posts
It blow the EGR line off? Cam timing has been doublechecked and you know its not advanced a tooth or 2?

aaron
Old Apr 28, 2011, 02:57 PM
  #8  
Evolved Member
iTrader: (5)
 
RoadSpike's Avatar
 
Join Date: Oct 2006
Location: Sacramento, CA
Posts: 3,805
Likes: 0
Received 2 Likes on 2 Posts
never mind saw it was not due to the turbo but the timing

Last edited by RoadSpike; Apr 28, 2011 at 03:03 PM.
Old Apr 28, 2011, 05:59 PM
  #9  
Evolving Member
Thread Starter
iTrader: (5)
 
tdubbz's Avatar
 
Join Date: Nov 2009
Location: New Hampshire
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
hmm.. I don't know if the cam timing was checked. I will have to ask

Originally Posted by JohnBradley
It blow the EGR line off? Cam timing has been doublechecked and you know its not advanced a tooth or 2?

aaron
Old Apr 29, 2011, 07:39 PM
  #10  
Evolved Member
iTrader: (15)
 
awddyno's Avatar
 
Join Date: Jun 2005
Location: Midwest
Posts: 648
Likes: 0
Received 0 Likes on 0 Posts
Anyone check the wastegate arm if it's stuck?
I wish I can see your map.
Old Apr 30, 2011, 07:27 AM
  #11  
Evolved Member
iTrader: (31)
 
BEISSEN's Avatar
 
Join Date: Jan 2007
Location: Under my car
Posts: 766
Likes: 0
Received 0 Likes on 0 Posts
Shoot Tscompusa a email he will help I am one of the cars that had excessive noise and he fixed it. I would def check the Timing and see if the gears might be off as it could cause a issue.
Old May 1, 2011, 10:53 PM
  #12  
Evolving Member
Thread Starter
iTrader: (5)
 
tdubbz's Avatar
 
Join Date: Nov 2009
Location: New Hampshire
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
bump for charts
Old May 2, 2011, 07:48 PM
  #13  
Evolved Member
iTrader: (19)
 
zeus1's Avatar
 
Join Date: Sep 2005
Location: manchester, new hampshire
Posts: 1,002
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by tdubbz
bump for charts
maybe i am reading the second chart incorrectly but is the afr going in to the mid 10's? that is pretty rich. there is also a spike there there that looks abnormal. i think once you get another tuner that knows what is going you will be good to go
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jbundrick
Drag Racing
6
Jul 29, 2017 11:06 AM
kiggly
Evo Engine / Turbo / Drivetrain
30
Aug 8, 2015 07:03 PM
LimitlessEvo7
General Engine Management / Tuning Forum
4
Nov 9, 2014 02:53 AM
lucky13evo
For Sale - Cars For Sale
9
Sep 7, 2011 05:42 PM
J8dailo
Evo Engine / Turbo / Drivetrain
15
Aug 23, 2009 08:05 AM



Quick Reply: Car won't boost past 23.8 psi



All times are GMT -7. The time now is 12:54 PM.