SCTx3 / REVOLUTIONS PER MILE ? - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 03-13-2009, 07:42 AM
Compression Ignition Addict
 

Join Date: Nov 2007
Location: Newport News, Va
Posts: 168
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
SCTx3 / REVOLUTIONS PER MILE ?

I've had the SCT for over a year and the lift/wheels/tires for a couple of months now. I'd like to adjust the revolutions per mile in the SCT. According to Mickey Thompson the revolutions per mile for my tire are 440 however the SCT will not adjust to this setting. It seems like it will go to stock then 500 then up to 900 something. This is when I go to adjust the settings under the Looney tune. Is this range of revolutions per mile adjustment something that the Tuner (ie the former DJ) sets? Is this something I should even worry about? I am assuming this setting should be corrected for shifting points? Thanks in advance for any help
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 03-13-2009, 09:42 AM
Compression Ignition Addict
 

Join Date: Mar 2007
Posts: 4,579
Thanks: 2
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
did you tell DJ you had 38" tires? If so, he probably wrote it into the tune.
Reply With Quote Quick reply to this message
  #3  
Old 03-13-2009, 09:45 AM
Powerstroke.org Fanatic
 

Join Date: Jan 2009
Location: Terre Haute, Indiana
Posts: 126
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Im trying to figure that out myself for 315/75/18
Reply With Quote Quick reply to this message
  #4  
Old 03-13-2009, 10:43 AM
Compression Ignition Addict
 

Join Date: Nov 2007
Location: Newport News, Va
Posts: 168
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
DJ's has been closed for a while...when I got the sct the truck had stock suspension/wheels/tires. Does anybody else's sct allow them to adjust to 440 revolutions per mile?
Reply With Quote Quick reply to this message
  #5  
Old 03-13-2009, 11:00 AM
Powerstroke.org Fanatic
 

Join Date: Jan 2009
Location: Terre Haute, Indiana
Posts: 126
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Just found this.... If you running 38s it should be 550 rrms

Need revs/per mile calc, asap!

you can also figure it out yourself, its 20168 divided by your tire diameter
Reply With Quote Quick reply to this message
  #6  
Old 03-13-2009, 11:21 AM
Compression Ignition Addict
 

Join Date: Nov 2007
Location: Newport News, Va
Posts: 168
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I have baja claws 36x15.5x20 according to mickey thompson the revolutions per mile are 440. I just need to know if this setting can be achieved via the sct? the range my sct is giving me is 500-900 something...
Reply With Quote Quick reply to this message
  #7  
Old 03-13-2009, 11:29 AM
Powerstroke.org Fanatic
 

Join Date: Jan 2009
Location: Terre Haute, Indiana
Posts: 126
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
A smaller mass is gonna have a higher rotation... if 38s are 550 36s will be higher yet....

Its like a bike with big tires goes 100ft it will have 20 rotations if a bike with smaller tires it will have 30-40 rotations to make the same 100ft distance.

idk its just the way I understand it... for a vehicle to have 440 rrms it would have to be running 40ish tires Im not sure Micky is right but again idk
Reply With Quote Quick reply to this message
  #8  
Old 03-13-2009, 11:41 AM
Compression Ignition Addict
 

Join Date: Nov 2007
Location: Newport News, Va
Posts: 168
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by PSD366.75ci View Post
A smaller mass is gonna have a higher rotation... if 38s are 550 36s will be higher yet....

Its like a bike with big tires goes 100ft it will have 20 rotations if a bike with smaller tires it will have 30-40 rotations to make the same 100ft distance.

idk its just the way I understand it... for a vehicle to have 440 rrms it would have to be running 40ish tires Im not sure Micky is right but again idk

maybe mickey's specs were wrong I think I'll try what you said above I divided 20168 by 35.9 and got 561.78 I'll try to set it close to that number. I appreciate the help
Reply With Quote Quick reply to this message
  #9  
Old 03-13-2009, 03:24 PM
Compression Ignition Addict
 

Join Date: Dec 2008
Location: NOR CALI
Posts: 1,637
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I called sct tech and they told me that you can't adjust the rev per mile ot the gear option on the 6.0 on the canned tunes, is that correct?
Reply With Quote Quick reply to this message
  #10  
Old 03-13-2009, 11:03 PM
Powerstroke.org Fanatic
 

Join Date: Jan 2009
Location: Terre Haute, Indiana
Posts: 126
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
You can adjust with canned tunes...
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 04:38 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors