Dodge/Ram Diesel Tech Discussions on all generations of Cummins Diesel powered Rams plus the new Eco Diesel

24 valve cummins vs 12 valve cummins

Thread Tools
 
Search this Thread
 
  #1  
Old 10-30-2006, 11:53 PM
dvcap2004's Avatar
dvcap2004
dvcap2004 is offline
Professional
Thread Starter
Join Date: May 2006
Location: Maryland
Posts: 103
Likes: 0
Received 0 Likes on 0 Posts
Default 24 valve cummins vs 12 valve cummins

what year did they stop putting the 24 valve cummins in the dodges? what would be a better, more reliable, and more powerful engine a 24 valve or the 12 valve?
 
  #2  
Old 10-31-2006, 12:00 AM
jakebrake's Avatar
jakebrake
jakebrake is offline
Champion
Join Date: Feb 2006
Location:
Posts: 4,569
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 24 valve cummins vs 12 valve cummins

12v to 24v was midway through 1998, 24v isb to 24v common rail was in 2003. You can build massive amounts of torque from the old 12v. Their injection pumps are a little more robust. How ever fuel mileage is lower with the 12v. The 24v's are electronic, so if you want more power, all you need is a chip. As for which is better, I have no opinion. I like the old 12v's because of no electronics. I like the new 24v's because of fuel mileage and the transmissions offered behind them.
 
  #3  
Old 10-31-2006, 12:01 AM
CowboyBob's Avatar
CowboyBob
CowboyBob is offline
Record Breaker
Join Date: Oct 2005
Location:
Posts: 1,386
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 24 valve cummins vs 12 valve cummins

They started putting the 24v in the 98.5 year model. The 12v is more mechanical (such as the injector pump), the 24v is more computer controled.
 
  #4  
Old 10-31-2006, 12:01 AM
dvcap2004's Avatar
dvcap2004
dvcap2004 is offline
Professional
Thread Starter
Join Date: May 2006
Location: Maryland
Posts: 103
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 24 valve cummins vs 12 valve cummins

which one has more h.p.? the 12 valve or the 24 valve?
 
  #5  
Old 10-31-2006, 12:06 AM
sharx ram's Avatar
sharx ram
sharx ram is offline
Champion
Join Date: Aug 2006
Posts: 4,537
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 24 valve cummins vs 12 valve cummins

The 24 has more power than the 12, My buddy has a 12 and mine spanked him stock.
 
  #6  
Old 10-31-2006, 12:16 AM
dvcap2004's Avatar
dvcap2004
dvcap2004 is offline
Professional
Thread Starter
Join Date: May 2006
Location: Maryland
Posts: 103
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 24 valve cummins vs 12 valve cummins

but i thought that the brand new cummins were 12v?
 
  #7  
Old 10-31-2006, 12:41 AM
jakebrake's Avatar
jakebrake
jakebrake is offline
Champion
Join Date: Feb 2006
Location:
Posts: 4,569
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 24 valve cummins vs 12 valve cummins

They are still 24 valves. just use a common rail to feed the injectors
 
  #8  
Old 10-31-2006, 10:54 AM
Drew's Avatar
Drew
Drew is offline
Professional
Join Date: Aug 2004
Location: 33.43.342, 84.21.602
Posts: 117
Likes: 0
Received 1 Like on 1 Post
Default RE: 24 valve cummins vs 12 valve cummins

89-98.4 were 12valves, 98.5-present are 24valve

there was an injector pump change in 94
head redesign and injector pump change in 98.5
injection system and a slight block redesign in 03
in 07.5 the 5.9L ISBe will be dropped all together for the 6.7L. I;m unsure of the designation of the engine right now.
 



Quick Reply: 24 valve cummins vs 12 valve cummins



All times are GMT -4. The time now is 11:15 AM.