Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

Lock up on 2-3 shift?

Thread Tools
 
Search this Thread
 
Old 03-08-2009, 05:42 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (3)
 
w3s1c0a5t's Avatar
 
Join Date: Nov 2008
Posts: 726
Likes: 0
Received 0 Likes on 0 Posts

Default Lock up on 2-3 shift?

Im wondering in a 98 formula with 4.10's tranny mods Trans go hd-2 kit 3700 stall and a MVB if i can lock up the verter in second and not unlock it for the 3rd shift.

Thanks for any input guys.
Old 03-08-2009, 06:00 PM
  #2  
FLT
FormerVendor
iTrader: (1)
 
FLT's Avatar
 
Join Date: Sep 2005
Location: Wood Dale, Illinois
Posts: 6,620
Likes: 0
Received 3 Likes on 3 Posts

Default

I would not suggest shifting any trans with the converter locked. This can be very hard on the transmissions internal components. Vince
Old 03-08-2009, 06:01 PM
  #3  
TECH Enthusiast
Thread Starter
iTrader: (3)
 
w3s1c0a5t's Avatar
 
Join Date: Nov 2008
Posts: 726
Likes: 0
Received 0 Likes on 0 Posts

Default

Even tho im well past the flash of the converter? You guys know more than me.

If not.... I have a manual lockup switch should i lock it up and then unlock for 2-3 then lock it back ?
Old 03-09-2009, 06:19 PM
  #4  
TECH Enthusiast
Thread Starter
iTrader: (3)
 
w3s1c0a5t's Avatar
 
Join Date: Nov 2008
Posts: 726
Likes: 0
Received 0 Likes on 0 Posts

Default

Bump need some info gents.
Old 03-09-2009, 06:40 PM
  #5  
LS1Tech Sponsor
iTrader: (25)
 
performabuilt's Avatar
 
Join Date: Aug 2006
Location: BLOOMSBURG PA
Posts: 10,858
Received 78 Likes on 56 Posts

Default

I agree with Vince never lock during a shift. Its like hitting the trans with a sledgehammer.
You can turn the lockup off and on between shifts but the real question is why would you want to lock like that, The car unless the stall was badly chosen will be much faster unlocked. Thats what gives the auto the advanatage over the manual trans the torque multiplication of the converter.
__________________
Built..PerformaBuilt..Tough

Call 888-744-6542


Old 03-09-2009, 07:26 PM
  #6  
TECH Enthusiast
Thread Starter
iTrader: (3)
 
w3s1c0a5t's Avatar
 
Join Date: Nov 2008
Posts: 726
Likes: 0
Received 0 Likes on 0 Posts

Default

After the middle of second gear with 4.10's you think an unlocked converter is faster?
Old 03-09-2009, 07:56 PM
  #7  
LS1Tech Sponsor
iTrader: (25)
 
performabuilt's Avatar
 
Join Date: Aug 2006
Location: BLOOMSBURG PA
Posts: 10,858
Received 78 Likes on 56 Posts

Default

In most cases yes now some people gain a little locking at the top of 3rd but if you need to lock before that you may have chosen to loose a converter.
Anyway you look at it though its dangerous to lock anyhwere near a shift with a switch since if you miss it could spell disaster-Trans/converter/drive shaft/rear end.
__________________
Built..PerformaBuilt..Tough

Call 888-744-6542






All times are GMT -5. The time now is 12:09 PM.