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

lower egts

Old Aug 27, 2010 | 11:44 PM
  #21  
biged681985's Avatar
BOMBARDIER

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

sounds like u may have a boost leak bud, have ya checked it yet?
 
Reply
Old Aug 28, 2010 | 12:06 AM
  #22  
wes-cummins's Avatar
Diesel Wrench
Joined: Dec 2009
Posts: 576
Likes: 10
From: wisconsin
Default

Originally Posted by 94cummins12v
i couldnt get it to fit period since your running a different tranny then me the nv4500 is wider and wont allow the hx40 down pipe to go between the frame and tranny so i had to get an industrial manifold similar to the 3rd gen to get it low enough to go next to the tranny

---AutoMerged DoublePost---
have you tried porting your manifold? i talked to a guy that said he put an aftermarket manifold and then took it off ported it and got a 100* drop after porting it.
 
Reply
Old Aug 28, 2010 | 07:10 AM
  #23  
dan33klein's Avatar
Diesel Bomber
iTrader: (-1)
Joined: Nov 2008
Posts: 1,019
Likes: 11
From: cherry,il
Default

Originally Posted by wes-cummins
have you tried porting your manifold? i talked to a guy that said he put an aftermarket manifold and then took it off ported it and got a 100* drop after porting it.
wherean you port an and how can this be done?
 
Reply
Old Aug 29, 2010 | 11:12 PM
  #24  
94cummins12v's Avatar
Thread Starter
|
Diesel Bomber
Joined: Jan 2008
Posts: 4,525
Likes: 103
From: Havre mt
Default

ok i did a leak test today and no leaks atall i have a slight leak threw the rings into the crank case but thats because the rings arent completely seated yet, im asumin it is the wastegate at this time becuse the simptons and doing everything else to check point to that im tinking it is either stuck open or the plate may be warped letting the boost threw

---AutoMerged DoublePost---

Originally Posted by wes-cummins
have you tried porting your manifold? i talked to a guy that said he put an aftermarket manifold and then took it off ported it and got a 100* drop after porting it.
porting the exhaust manifold does make a slight difference in EGTs but it wont make a differance in boost levels like we are talking about with this situation

---AutoMerged DoublePost---

Originally Posted by dan33klein
wherean you port an and how can this be done?
dan if you have a dremil tool get a grinding stone for it and you can port you own manifold in a night. get a case of beer crank the toons and have some fun thats how i did mine on my last manifold havent had time for this yet with building my new house
 

Last edited by 94cummins12v; Aug 29, 2010 at 11:12 PM. Reason: Automerged Doublepost
Reply
Old Aug 30, 2010 | 07:07 AM
  #25  
dan33klein's Avatar
Diesel Bomber
iTrader: (-1)
Joined: Nov 2008
Posts: 1,019
Likes: 11
From: cherry,il
Default

sounds like something i can do
im gunna go for it, ive heard of people doing the exhaust ports on the head to. but the shavings would fall on the valves
 
Reply
Old Aug 30, 2010 | 11:14 AM
  #26  
goalie990's Avatar
Diesel Fan
Joined: Oct 2007
Posts: 48
Likes: 0
Default

Throw some water injection on it, also is the turbo laggy? Maybe get a small set of towing twins. Also the 370' dont help the situation.
 
Reply
Old Aug 30, 2010 | 01:53 PM
  #27  
12valvetater's Avatar
Diesel Bomber
Joined: Oct 2008
Posts: 1,474
Likes: 35
From: Pennsylvania
Default

Throw those industrial injectors in the trash and go with something better.
 
Reply
Old Aug 30, 2010 | 09:39 PM
  #28  
94cummins12v's Avatar
Thread Starter
|
Diesel Bomber
Joined: Jan 2008
Posts: 4,525
Likes: 103
From: Havre mt
Default

Originally Posted by goalie990
Throw some water injection on it, also is the turbo laggy? Maybe get a small set of towing twins. Also the 370' dont help the situation.
as stated before i refuse to run water/meth already had it wasnt all that happy with it and cant run it in the winter here with the temps we get wont do twin had em like my sper 62 better, and unless someone throws me a super deal on injectors the ones i have are stayingbasicaly my setup isnt producing heat i know i ran it for 2 years in my dodge was completly happy with it were trying to diognos why im not buildiing boost which intern makes high egts

---AutoMerged DoublePost---

Originally Posted by dan33klein
sounds like something i can do
im gunna go for it, ive heard of people doing the exhaust ports on the head to. but the shavings would fall on the valves
dan you can do the manifold and turbo no issue when we did my last head it was off the truck no sure how you could do it withought removing the head i wouldnt be conserned about it because there not realy shavings if you use a grinding stone more like powder
 

Last edited by 94cummins12v; Aug 30, 2010 at 09:39 PM. Reason: Automerged Doublepost
Reply
Old Aug 30, 2010 | 10:34 PM
  #29  
oglejust's Avatar
Diesel Wrench
Joined: Oct 2008
Posts: 556
Likes: 19
From: paris illinois
Default

if u dont have a leak then u either have a wastegate problem or somethings wrong w the charger... im leaning towards the wastegate. did u get a good look at both sides of the intercooler?
 
Reply
Old Aug 31, 2010 | 06:13 AM
  #30  
Truckboy's Avatar
Diesel Fan
Joined: Aug 2010
Posts: 33
Likes: 1
Default

what are the dangers? will it create high egts? or burn the pumps?
 
Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 11:46 AM.