Gen 5 Camaro Drivetrain Tech Clutch, torque converter, rear end, axles

6L80E won't shift on time with N2O

Thread Tools
 
Search this Thread
 
Old 12-21-2014, 07:18 PM
  #1  
10 Second Truck Club
Thread Starter
iTrader: (25)
 
67SS509's Avatar
 
Join Date: Apr 2003
Location: Whiteville, NC
Posts: 866
Received 1 Like on 1 Post

Default 6L80E won't shift on time with N2O

Been tuning on a 2010 Camaro with 6L80E trans. On a 150 shot it won't shift fast enough to hit the as commanded 6000. Moved the commanded RPM and MPH down to 5200 but it will still hit the rev limiter at 6500. TQM is off and shift timing is reduced. What's the secret for these transmissions?
Old 12-23-2014, 07:07 PM
  #2  
11 Second Club
iTrader: (1)
 
motion427's Avatar
 
Join Date: Jan 2007
Location: Moncton,N-B, Canada
Posts: 242
Likes: 0
Received 0 Likes on 0 Posts

Default

Did you add shift pressure and reduce shift time aswell?
Old 12-24-2014, 12:03 PM
  #3  
10 Second Truck Club
Thread Starter
iTrader: (25)
 
67SS509's Avatar
 
Join Date: Apr 2003
Location: Whiteville, NC
Posts: 866
Received 1 Like on 1 Post

Default

Originally Posted by motion427
Did you add shift pressure and reduce shift time aswell?
Yes, I do that to even stock ones.
Old 12-26-2014, 11:27 AM
  #4  
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

Are you trying to spray the shot through the shift?

On nitrous I will shut the juice off 100rpm before the shift point.

Other than that. Raise the WOT shift pressure a lot
shift time usually at .24 minimum
and match up rpm and mph at the shift point. I usually drop mph 4-6mph lower than what you want.
Old 12-28-2014, 07:16 PM
  #5  
10 Second Truck Club
Thread Starter
iTrader: (25)
 
67SS509's Avatar
 
Join Date: Apr 2003
Location: Whiteville, NC
Posts: 866
Received 1 Like on 1 Post

Default

Originally Posted by Slowhawk
Are you trying to spray the shot through the shift?

On nitrous I will shut the juice off 100rpm before the shift point.

Other than that. Raise the WOT shift pressure a lot
shift time usually at .24 minimum
and match up rpm and mph at the shift point. I usually drop mph 4-6mph lower than what you want.
Yes, trying to spray thru the shifts.
That's about what I do on the shift timing and MPH shift points.
How much is the limit for raising pressure?

One of my next moves is to add 10-15% in the torque model table in the ECM



Quick Reply: 6L80E won't shift on time with N2O



All times are GMT -5. The time now is 04:34 AM.