LS1TECH - Camaro and Firebird Forum Discussion

Dynamometer Results & Comparisons Dyno Records | Dyno Discussion | Dyno Wars

Dyno flatline

Thread Tools
 
Search this Thread
 
Old 07-22-2009, 05:21 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (8)
 
OffspringZ28's Avatar
 
Join Date: Jan 2006
Posts: 569
Likes: 0
Received 1 Like on 1 Post

Default Dyno flatline
Hey guys,

check out my graph. it looks there is an abrupt flatline at around 5500rpm. what could cause this? The clutch began to slip a couple days after the dyno and it needed a tune up so I tossed in new plugs and wires. Could this be a valvetrain issue or clutch issue? I was under the impression that a slipping clutch on the dyno would affect trq readings moreso than hp. Thanks for looking!

OffspringZ28 is offline  
Reply Like
Old 07-23-2009, 02:36 PM
  #2  
TECH Enthusiast
Thread Starter
iTrader: (8)
 
OffspringZ28's Avatar
 
Join Date: Jan 2006
Posts: 569
Likes: 0
Received 1 Like on 1 Post

Default
Mods are stg 2.5 5.3 heads/TR224 @ 114. Full bolt ons if that helps
OffspringZ28 is offline  
Reply Like
Old 08-03-2009, 08:47 PM
  #3  
TECH Enthusiast
Thread Starter
iTrader: (8)
 
OffspringZ28's Avatar
 
Join Date: Jan 2006
Posts: 569
Likes: 0
Received 1 Like on 1 Post

Default
bizzump
OffspringZ28 is offline  
Reply Like
Old 08-07-2009, 11:26 PM
  #4  
FormerVendor
iTrader: (2)
 
XtraCajunSS's Avatar
 
Join Date: Dec 2001
Location: Baton Rouge, LA, USA
Posts: 1,954
Likes: 0
Received 3 Likes on 3 Posts
Default
What are you running for rocker arms?

Shane
XtraCajunSS is offline  
Reply Like
Old 08-09-2009, 04:45 PM
  #5  
TECH Enthusiast
Thread Starter
iTrader: (8)
 
OffspringZ28's Avatar
 
Join Date: Jan 2006
Posts: 569
Likes: 0
Received 1 Like on 1 Post

Default
Originally Posted by XtraCajunSS
What are you running for rocker arms?

Shane
stock
OffspringZ28 is offline  
Reply Like
Old 08-09-2009, 06:37 PM
  #6  
LS1Tech Sponsor
iTrader: (12)
 
Slowhawk's Avatar
 
Join Date: Nov 2001
Location: Bridgewater,Ma
Posts: 14,865
Likes: 0
Received 6 Likes on 6 Posts

Default
It could be the clutch,the torque is dropping more than it should too.The dyno operator should of known since the clutch peddle wouldn't come back up after the run.
Slowhawk is offline  
Reply Like
Old 08-09-2009, 08:36 PM
  #7  
TECH Enthusiast
Thread Starter
iTrader: (8)
 
OffspringZ28's Avatar
 
Join Date: Jan 2006
Posts: 569
Likes: 0
Received 1 Like on 1 Post

Default
Originally Posted by Slowhawk
It could be the clutch,the torque is dropping more than it should too.The dyno operator should of known since the clutch peddle wouldn't come back up after the run.
clutch pedal never really acted up. it just slips now under load in 4th and higher gears
OffspringZ28 is offline  
Reply Like

Trending Topics

Old 08-09-2009, 10:57 PM
  #8  
Launching!
 
SKINNY69's Avatar
 
Join Date: Jul 2008
Location: Newville, PA
Posts: 205
Received 10 Likes on 6 Posts

Default
Originally Posted by OffspringZ28
clutch pedal never really acted up. it just slips now under load in 4th and higher gears
I think you answered your own question.
SKINNY69 is offline  
Reply Like
Old 08-10-2009, 06:36 AM
  #9  
TECH Enthusiast
Thread Starter
iTrader: (8)
 
OffspringZ28's Avatar
 
Join Date: Jan 2006
Posts: 569
Likes: 0
Received 1 Like on 1 Post

Default
Originally Posted by SKINNY69
I think you answered your own question.
True lol. I had just never seen a graph with a slipping clutch so I wasn't real sure
OffspringZ28 is offline  
Reply Like
Tags
Back to Subforum
Dynamometer Results & Comparisons
View Next Unread
ls1 500HP?




Advanced Search
Quick Reply: Dyno flatline


Reply Closed Thread Share

All times are GMT -5. The time now is 09:51 PM.