12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

tuning

Thread Tools
 
Search this Thread
 
Old May 5, 2011 | 08:50 AM
  #1  
91 12valve's Avatar
Thread Starter
|
Diesel Fan
Joined: Nov 2009
Posts: 73
Likes: 0
From: Stoutland Missouri
Default tuning

i was wondering what alll i can do to make my truck perform better i have ground my plate down quite a bit slid all the way forward and i have an airfilter i have 5 inch exhaust on the way but im kinda new to some things i hear of people adjusting waste gates and messing with the afc and i was wondering what to do
 
Reply
Old May 5, 2011 | 08:57 AM
  #2  
biged681985's Avatar
BOMBARDIER

Joined: May 2008
Posts: 5,567
Likes: 338
From: Yellville, Arkansas
Default

what plate profile did you grind it to?
 
Reply
Old May 6, 2011 | 08:28 AM
  #3  
91 12valve's Avatar
Thread Starter
|
Diesel Fan
Joined: Nov 2009
Posts: 73
Likes: 0
From: Stoutland Missouri
Default

well about that i just ground everything down to a flat grade the bottom is out a little further out than the top and at the top there might be a 1/8 inch at top and also with that my egts spike up really easy with no trailer i have not pulled yet since gauges but a know they will be high

---AutoMerged DoublePost---

which 5 inch will help egts though and i only get bout 29 psi of boost and thats it

---AutoMerged DoublePost---

my plate is close to a 100
 

Last edited by 91 12valve; May 6, 2011 at 08:28 AM. Reason: Automerged Doublepost
Reply
Old May 6, 2011 | 12:42 PM
  #4  
biged681985's Avatar
BOMBARDIER

Joined: May 2008
Posts: 5,567
Likes: 338
From: Yellville, Arkansas
Default

a5 inch wont help egts alot. 29 psi sounds bout right for your mods.

the next thing i would look into would be 3-4k gov springs. there less than 100, but would have to look them up for the exact price. gov springs would realy wake your truck up
 
Reply
Old May 6, 2011 | 08:08 PM
  #5  
91 12valve's Avatar
Thread Starter
|
Diesel Fan
Joined: Nov 2009
Posts: 73
Likes: 0
From: Stoutland Missouri
Default

what can i do to lower my egts before long im gana fix the KDP do u think it would be a good idea to get a boost elbow what else can i do to build it all up
 
Reply
Old May 7, 2011 | 09:30 AM
  #6  
Swaparoo's Avatar
Diesel Fan
Joined: May 2011
Posts: 19
Likes: 0
From: Houston, TX
Default

Have you made any adjustments to the AFC? If not, modifying the plate won't do much.
 
Reply
Old May 9, 2011 | 01:54 AM
  #7  
BRE's Avatar
BRE
Diesel Wrench
Joined: Feb 2010
Posts: 769
Likes: 63
From: Southwest Missouri
Default

Originally Posted by Swaparoo
Have you made any adjustments to the AFC? If not, modifying the plate won't do much.
Very untrue^

Do as biged says and get some 3k gov springs. It will make it a completely different truck. You can also pull the afc apart and modify it as well and depending on you plate grind you can get more rack travel that way.
 
Reply
Old May 9, 2011 | 10:31 AM
  #8  
91 12valve's Avatar
Thread Starter
|
Diesel Fan
Joined: Nov 2009
Posts: 73
Likes: 0
From: Stoutland Missouri
Default

yeh i cranked it all the way out where the spring has no pressure is that the right way
 
Reply
Old May 9, 2011 | 12:45 PM
  #9  
BRE's Avatar
BRE
Diesel Wrench
Joined: Feb 2010
Posts: 769
Likes: 63
From: Southwest Missouri
Default

Well you can actually pull it of the truck, grind the washers down flat and grind 1/8th inch of the barrel of the foot so it gets full travel.
 
Reply
Old May 10, 2011 | 10:12 PM
  #10  
91 12valve's Avatar
Thread Starter
|
Diesel Fan
Joined: Nov 2009
Posts: 73
Likes: 0
From: Stoutland Missouri
Default

thank you sir i will look into that and see what i cant do
 
Reply



All times are GMT -5. The time now is 11:12 AM.