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

Very basic question...

Thread Tools
 
Search this Thread
 
Old 07-02-2007, 12:36 PM
  #1  
TECH Junkie
Thread Starter
iTrader: (4)
 
Gordon0652's Avatar
 
Join Date: Sep 2006
Posts: 3,188
Received 2 Likes on 2 Posts

Default Very basic question...

What is a Transmission brake. I have heard about them in autos. and something about a launch. Can someone tell me what they do?
Thank you.
Old 07-02-2007, 01:33 PM
  #2  
FormerVendor
 
Gilbert@Ace Racing's Avatar
 
Join Date: Oct 2006
Location: D-F/W
Posts: 3,123
Likes: 0
Received 2 Likes on 2 Posts
Default

A transmission Brake basically engages reverse and low gear simultaneously. This allows the engine RPM's to be brought up to the power band at the line without energy being sent into the driveshaft and rear axle... all of the energy is loaded into the geartrain of the transmission and not the rear wheels until the brake is released.

g
Old 07-02-2007, 02:38 PM
  #3  
TECH Junkie
Thread Starter
iTrader: (4)
 
Gordon0652's Avatar
 
Join Date: Sep 2006
Posts: 3,188
Received 2 Likes on 2 Posts

Default

Being in two gears esp. reverse and forward wouldnt that hurt your transmission?
Old 07-02-2007, 02:48 PM
  #4  
TECH Enthusiast
 
smoknta's Avatar
 
Join Date: Jul 2003
Location: Evansville, IN
Posts: 697
Likes: 0
Received 0 Likes on 0 Posts
Default

No it locks the tranny still....it build tremendous amounts of heat in the converter and fluid if held on for very long. And it shocks the drivetrain pretty hard when let off. But many drag cars use them to bring the rpms up onto the true stall of the converter.
Old 07-02-2007, 06:32 PM
  #5  
FormerVendor
 
Gilbert@Ace Racing's Avatar
 
Join Date: Oct 2006
Location: D-F/W
Posts: 3,123
Likes: 0
Received 2 Likes on 2 Posts
Default

No it does not damge the trans. Low gear and reverse are the same gear ratio, because of that they are equal and opposing.

g




All times are GMT -5. The time now is 06:22 AM.