exhaust for my cummins?

[agoldxj]

suggestions im new to this diesel world... also who makes a good boost controller etc.?

[Hoofmann]

boost what :confused:
12 or 24 valve?

[Jeepin Jason]

98 is a 12V right?

For exhaust... Banks or Bully Dog. If/when our rig gets some power mods, they'll likely all be Bully Dog (partially because we're Bully Dog dealers, and partially because I just like their products and designs).

[Leadfoot]

I like Magnaflow and MBRP. Magnaflow should have sound clips on their site to listen too.

MBRP is quiet until you stomp on it.

[agoldxj]

yeah 12 valve.

[bogan]

i thought u said it was a 99 and a 24 valve? im lost

[Hoofmann]

sweet truck! I like MBRP

[XJRIDE]

MBRP

www.xtremediesel.com

[agoldxj]

i thought u said it was a 99 and a 24 valve? im lost
haha yeah i did i got myself confused on the year its a 98.

[MYTEXJ]

MBRP!!

[agoldxj]

sounds like mbrp is the way to go so far, thanks for the input.

[J.D.]

suggestions im new to this diesel world... also who makes a good boost controller etc.?

No boost controler for a 12v. You can up your boost by blocking off your waste gate which will raise your boost level to around 30-35. Any more then that and you risk blowing your head gasket. And shifting your fuel plate and AFC housing forward will get you more power. Just enough that you can grenade your transmission. You can get varied levels of power out of the 12v fueling system depending on what you do to your fuel plate. I am about to grind mine to get me a ton more power without costing me anything. If you want to know details on what to do I have some good links for that stuff.



98 is a 12V right?

For exhaust... Banks or Bully Dog. If/when our rig gets some power mods, they'll likely all be Bully Dog (partially because we're Bully Dog dealers, and partially because I just like their products and designs).

2nd gen 12vs were from 94-98.5. 2nd gen 24vs started 98.5.

Bank and bullydog are great for the 24v 2nd gens and the 3rd gen common rails but they are terribly over priced for their stuff for 2nd gen 12vs.


Jim MBRP is a great exhaust. Probably one of the best out for diesels. However that also comes with a price. There are alot of diesel performance shops that build their own exhausts for hundreds less then MBRP and other big name brands. With your truck I would recommend a 4" Turbo Back system. Seeing as how you have a 12v you will have a truck that actually sounds like a truck instead of one of those quiet overvalved 24s. I have a Silverline 4" TB on mine and it sounds awsome. I can get you a sound clip of it if you want. I got mine from Wicked Diesels. http://www.wickeddiesels.com/ Also check out Jegs. They have their "subway tunnel" exhaust systems for a great price. On my exhaust I ordered mine without a muffler and I got rid of the cat too. I have a ton of info on the 12v trucks if you want help or have anymore questions about it let me know.

[J.D.]

I like Magnaflow and MBRP. Magnaflow should have sound clips on their site to listen too.

MBRP is quiet until you stomp on it.

Just about anything is quiet until you stomp on it with a Duramax :p

[agoldxj]

awesome jd thanks for the help!

[J.D.]

awesome jd thanks for the help!
No problem. You can also check out cumminsforum.com. There is a sponsors market place thread that has a spot in it where you post what you want and companies will pretty much make you their best offer. Thats how I found my exhaust and guages...got it all in a package deal. Its nice when they compete for your business. Just if you do it that way you can't post how much you got stuff for or say to the other distributors how much you were quoted from someone else.

[agoldxj]

sweet will do.

[bbaCJ8]

Damnit I wish I had a fukkin Cummins. Stupid resale values....

[xj_man_646]

no...its stupid sweeeeeeeeet deals that no one but 1 person can ever get.

[agoldxj]

say what james. oh and its a late model 98 so its a 24 valve. i thought it was but i was going by the years posted above.... oh and im in love..

[Shane]

say what james. oh and its a late model 98 so its a 24 valve. i thought it was but i was going by the years posted above.... oh and im in love..
Hell yes! I love my 99. We'll see what becomes of it in December though :(

[agoldxj]

huh?

[xj_man_646]

say what james. oh and its a late model 98 so its a 24 valve. i thought it was but i was going by the years posted above.... oh and im in love..
idk i didn't catch the original thread, but i heard that you got this thing for something under 9k? maybe i heard wrong/info was wrong, but if thats true...any cummins 1998 for that price is a freakin steal, and i have never seen one that cheap...in good condition

[xj_man_646]

Hell yes! I love my 99. We'll see what becomes of it in December though :(
TELL ME IF YOU SELL IT...

[agoldxj]

idk i didn't catch the original thread, but i heard that you got this thing for something under 9k? maybe i heard wrong/info was wrong, but if thats true...any cummins 1998 for that price is a freakin steal, and i have never seen one that cheap...in good condition
its in pretty damn good shape, minor rust on the one door... which will be herculined anyway. ill get pics tomorrow!

[xj_man_646]

its in pretty damn good shape, minor rust on the one door... which will be herculined anyway. ill get pics tomorrow!
good. good good good. me want pics.

how you like the 12v? i've never driven one...just the new H.O. 24v. I am thinkin on going into the market for a 12v next year though.

[agoldxj]

reread the first post you quoted...

[xj_man_646]

damnit. nevermind. how are the earlier 24v's then.

[Shane]

huh?
I'm the inventory manager for a ford store...the owner also owns a dodge store. 07 mega Cab's for a bit over 30. Might pick one up in december. But these 2nd gens are badass! Cant believe i always said Ford>Dodge.

[Shane]

ill get pics tomorrow!
:rock:

[bbaCJ8]

I'm the inventory manager for a ford store...the owner also owns a dodge store. 07 mega Cab's for a bit over 30. Might pick one up in december. But these 2nd gens are badass! Cant believe i always said Ford>Dodge.
Holy sh1t that's cheap!!

[Shane]

Holy sh1t that's cheap!!
had a chance last year... 06 2500 mega Cab with teh CTD. every option but sliding rear window and leather. 33995. Invoice of 45 :o

[J.D.]

how you like the 12v? i've never driven one...just the new H.O. 24v. I am thinkin on going into the market for a 12v next year though.

Since he has an over valved engine :p I will help you out. Since you have only driven the new HO 24v then you will maybe be disapointed with the power...or lack of in a stock 12v. The specs on mine is 160 HP with 400 lbs tq. Thats nothing compared to the 300/610 combo on the 5.9 24v HOs. However, you can easily up the power output of a 12v to the same specs as the 24 ho by simply tweaking some things in the fuel pump. I am about to make mine just as powerful as the new ones by simply shifting a fueling plate and a housing on and in my fuel pump forward. I will be sitting at around 250-285 hp at the rear wheels and around 500-550 tq at the rear wheels. And later I will upgrade my turbo and injectors to get around 600 HP and around 100-1200 tq. One of the best things about the 12v is the sound of them. Especially after an exhaust upgrade or just simply straight piping them. For simplicity and electronic free fun go with a 12v. If you want something you have to plug a computer into to increase power get a 24v.


had a chance last year... 06 2500 mega Cab with teh CTD. every option but sliding rear window and leather. 33995. Invoice of 45 :o

When I was last home in October of 2006 I could have gotten an 06 quad cab with CTD and all options for 29,999. I just couldn't get approved...stupid VW.

[xj_man_646]

Since he has an over valved engine :p I will help you out. Since you have only driven the new HO 24v then you will maybe be disapointed with the power...or lack of in a stock 12v. The specs on mine is 160 HP with 400 lbs tq. Thats nothing compared to the 300/610 combo on the 5.9 24v HOs. However, you can easily up the power output of a 12v to the same specs as the 24 ho by simply tweaking some things in the fuel pump. I am about to make mine just as powerful as the new ones by simply shifting a fueling plate and a housing on and in my fuel pump forward. I will be sitting at around 250-285 hp at the rear wheels and around 500-550 tq at the rear wheels. And later I will upgrade my turbo and injectors to get around 600 HP and around 100-1200 tq. One of the best things about the 12v is the sound of them. Especially after an exhaust upgrade or just simply straight piping them. For simplicity and electronic free fun go with a 12v. If you want something you have to plug a computer into to increase power get a 24v.


I am liking what I hear here...are the mods you spoke up hard to do, or not?

[agoldxj]

pics....
yeah im missing rear center caps.. they are in the mail.
http://img.photobucket.com/albums/v514/agoldxj/random048.jpg
where its at..
http://img.photobucket.com/albums/v514/agoldxj/random049.jpg
boner..
http://img.photobucket.com/albums/v514/agoldxj/random050.jpg

[Lisk98XJ]

sweet digs man! sorry i missed your call...i dont know what happened but i slept from 6 PM til 7:30 this morning.

[agoldxj]

no big thing man....

[J.D.]

I am liking what I hear here...are the mods you spoke up hard to do, or not?

If you consider 2 hours max of work hard. All I have to do right now is remove fuel plate and grind it down slide it full forward and then slide the housing forward and tighten down. It should be very easy. And it is FREE power.

[xj_man_646]

If you consider 2 hours max of work hard. All I have to do right now is remove fuel plate and grind it down slide it full forward and then slide the housing forward and tighten down. It should be very easy. And it is FREE power.
I see. Any writeups on this process? Do you know of any danger of 12v's melting down due to too high of EGT's, like my 6.5TD? I know with my truck, if the EGT's are not monitored, and leavy loading and lots of throttle, the turbos have been known to melt down, or something like that. I know on newer trucks, in stock form, they are pretty much idiot proof with their auto de-fueling stuff. Do the 12v's have anything like this, or do you just have to keep an eye on things?

[J.D.]

I see. Any writeups on this process? Do you know of any danger of 12v's melting down due to too high of EGT's, like my 6.5TD? I know with my truck, if the EGT's are not monitored, and leavy loading and lots of throttle, the turbos have been known to melt down, or something like that. I know on newer trucks, in stock form, they are pretty much idiot proof with their auto de-fueling stuff. Do the 12v's have anything like this, or do you just have to keep an eye on things?

Yeah there are some writeups on this stuff. I am going to get a cummins info post with links going before too long that will have that kind of stuff. A ton of info can be found at cumminsforum.com and cumminsdatabase.com. Yes there is a risk of meltdown under extreme conditions which can be reached very quickly. A good set of guages is a must if you are going to over fuel. However you can balance it all out to run safe under most load conditions...i.e. bigger turbo exhaust housing, bigger exhaust all the way back, intake, fuel balancing. It is all a trial and error type thing by monitoring your guages. If you are coming close to extreme high temps then you just slide you fuel plate back a little and see if it changes much. In stock form on a 12v I think it is impossible to have a melt down. On mine the highest I have seen is 800 degrees EGT. I think I read somewhere that a cummins thermal efficiency is at 1200 degrees. And you can run up into 1400 degrees for a small amount of time before you have to worry. Just let off the throttle when you see it go too high.

[MYTEXJ]

i noticed you pulled your silencing ring, i have read that it does nothing to do that, what is your opinion?

[Hoofmann]

Gettin rid of the silencer ring does nothing bug improve the sound. . . I like the sound of a turbo spooling, some think it's annoying. Removing the silencer ring makes the turbo a little louder, that's all.

[Shane]

Gettin rid of the silencer ring does nothing bug improve the sound. . . I like the sound of a turbo spooling, some think it's annoying. Removing the silencer ring makes the turbo a little louder, that's all.
I like the sound :D



Probably explains why i get 14mpg around town

[Hoofmann]

me too

[J.D.]

Probably explains why i get 14mpg around town



:lol: :p With my new transmission I get around 20 in town now. Don't know about highway yet.


i noticed you pulled your silencing ring, i have read that it does nothing to do that, what is your opinion?

It does nothing for performance at all either possitive or negative. Like everyone else said it just sounds really cool. And if you do it you will find your self on the throttle alot more just to hear it...your MPG will decrease.

If you do a silencer ring removal along with this BHAF http://www.cumminsforum.com/forum/general-diesel-discussion/18714-got-my-4510-nanofiber-installed-today.html?highlight=silencer+ring Your turbo will really sing!! That is exactly what I have and it sounds awsome! Here is how to remove the silencer ring. http://www.frontiernet.net/~mopar1973man/2002%20Dodge/BOMBS/silencer%20ring/silencer_ring.htm

[Hoofmann]

My old '98 12 valve had a really shot tranny, it got 11mpg around town. :lol:

I really do miss that truck. :(

[XJ_FIREFIGHTER]

I LOVE my Turbo back Silverline exhaust. www.wickeddiesels.com can hook you up with a price. Great guys to work with!

As for the power upgrades...

http://dodgeram.org/tech/dsl/more_power/power_p7100.htm

And all the common problems are listed here...

http://dodgeram.org/tech/dsl/troubleshooting/12v_trouble.htm

I love my 06 CTD and would not give it up for anything!


Also check out www.dieselbombers.com It's a new site that has ALL SORTS of great info. Use this link to register. http://www.dieselbombers.com/register.php?referrerid=319

[J.D.]

I LOVE my Turbo back Silverline exhaust. www.wickeddiesels.com can hook you up with a price. Great guys to work with!



x2 thats where I got mine