C4 Tranmission Downshifting question

Thread Tools
 
Search this Thread
 
  #1  
Old 08-21-2009, 10:02 AM
xplict's Avatar
xplict
xplict is offline
Senior User
Thread Starter
Join Date: Nov 2004
Location: Regina, Saskatchewan
Posts: 435
Likes: 0
Received 0 Likes on 0 Posts
C4 Tranmission Downshifting question

Hey,

Is it possible to stop a C4 transmission from downshifting out of 3rd at low rpm under WOT??

If so, how can I do it. Reason is I am doing a dyno run and want to be able to measure the entire RPM range.

There is no kickdown connected currently

Thanks.
 
  #2  
Old 08-21-2009, 08:35 PM
jk080's Avatar
jk080
jk080 is offline
Transmission Rebuilder

Join Date: Jul 2008
Location: North Georgia
Posts: 1,550
Received 50 Likes on 37 Posts
Try using a vacuum pump at about 10-15 pounds at the modulator.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LARIAT 85
1987 - 1996 F150 & Larger F-Series Trucks
5
09-07-2016 01:22 PM
sbeamer
1999 to 2016 Super Duty
2
08-11-2016 09:31 PM
Crovax
2007 - 2014 Expedition & Navigator
5
05-04-2013 01:13 PM
Heavy Duty f250
1999 to 2016 Super Duty
34
05-30-2011 11:09 AM
hella 4.0
1983 - 2012 Ranger & B-Series
4
02-20-2009 06:35 PM



Quick Reply: C4 Tranmission Downshifting question



All times are GMT -5. The time now is 08:52 PM.