Banks Bullet ? - Chevy and GMC Duramax Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 07-21-2019, 02:13 PM Thread Starter
DuramaxForum n00b
 
Join Date: Sep 2017
Location: Denver, NC
Posts: 11
Banks Bullet ?

I have a 2001 Silverado 2500HD Duramax with Allison Auto #1000;it with Banks Bullet installed when I purchased the truck used. Has 195K on it. The issue is that while towing my 5th wheel weighing in at 8k while pulling up steep grades with Bullet in Tow mode it bogs down to 1500 rpm in 5th gear does not downshift to 4th and drops into limp mode. Have to pull over and reset and then go again trying to keep it in 4th and make the grade. Came home today with Bullet in STK mode and it did perfect, like it is supposed to do. Anyone have any answer as to why? Thanks in advance. Tom.

kingskid
Tom Weston is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 07-21-2019, 06:03 PM
DuramaxForum Fanatic
 
SilverGorillaLML's Avatar
 
Join Date: Feb 2015
Location: The mountains of va/wva listen for the banjos
Posts: 8,991
One of two things most likely. Its either dropping rail pressure and causing it to limp or limping the trans because of too big of tune. Stock 5 speeds wont take much more than 40 to 60 hp over stock and not for very long.

My name is Nic
2011 GMC Sierra 2500 CCSB LML,
Lil ole single s400, fuel,
supporting mods,
rancher tuned,
Various parts from SDP, WCFAB, LDS, DHD,
SilverGorillaLML is offline  
post #3 of 3 (permalink) Old 07-24-2019, 09:16 PM Thread Starter
DuramaxForum n00b
 
Join Date: Sep 2017
Location: Denver, NC
Posts: 11
Thanks silver gorilla for the reply. With the bullet it does not tell you the amount of increase in HP in sport over stock. It ran & pulled great in stock mode. I think I will disconnect it all together, if I can figure out how to do it without screwing something up.
Tom Weston is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy and GMC Duramax 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:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome