I am looking for what mods that will make my Dmax LBZ the best it can be.

Maybe my thinking is wrong but, when you get a new dirt bike, it comes all plugged up for smog and sound. We call it uncorking to make the bike run right and get the most power out of the bike by opening up the exhaust, air filter, taking out the plastic air box plug or drilling holes........

Well I am looking to see what I need to do to the LBZ.

EGR (Exhaust Gas Recirculation) do I plug this off? WHat is the good and the bad of this. Cramming 30% of the exhaust back into the engine has never been a ggod thing???

Waist gate? other tricks? What is the best trick to make the LBZ run it's best?

What is the benifit of a 5" over 4"? Better fuel milage? Lower exhaust temp when towing? More Horsepower? In the high rpm? Do you loose torque with a 5"? What are the down side of going 5"? I am seeing a lot of 4" down tubes with straight 5" (no cat, not muffler) some gutted cats. I will save the stock exhaust if I ever need it for the day they start smogging these thrucks.

There is a lot of stuff I am slowly figuring out. Fingers Stick? WHat codes am I worried about? Low temp? EGR block off? I need to be schooled and fast, Thank you. I want to buy the right stuff the first time. I will need a tuner that I can go back to the stock tune without the dealer seeing it (Like the preditor). Which one do that? I think I need a code blocker for some code if I go to a high flowing exhaust? I will be putting a 6" lift and 35" tires so I will need the tuner to fix the speedo.

I was looking at this exhaust
http://php1.secure-shopping.com/dieselperformancesystem/product.php?productid=333&cat=17&page=1

Is the Dmax LBZ engine have the same restriction as the earlier models? Is it a big improvement to get the "BD Duramax LH exhaust manifold" and will it fit on the LBZ engine? Were is the best place to get one.
http://www.kennedydiesel.com/dmaxexhaustmods.html



http://xr650r.borynack.com/
__________________

Yeah your thinking is wrong. The engineers making vehicles today do a great job with all the design factors they have, you'll only sacrifice one for another pissing with their work. Switch to decaf.

Yeah your thinking is wrong. The engineers making vehicles today do a great job with all the design factors they have, you'll only sacrifice one for another pissing with their work. Switch to decaf.

So, thats why they got another 50hp going from the LLY to the LBZ? What about the left exhaust manifold? It has a 80% restriction of exhaust flow compared to the right and there is a after market fix for some reason?

http://www.kennedydiesel.com/dmaxexhaustmods.html

The glow plug problem was a great start with the LBZ.
Well, I guess I am just not buying into that they made a perfect truck, maybe the best but, not perfect. All these tree huggers ou there making the truck makers plug everything up till something has to break. Truck makers having to keep costs down. There are week links in everything and I was hoping there were those that have taken the time to find them.

The new EGR tube makes more heat then the LLY, they beafed up the cooling system to handle it. EGR isn't needed is it? Most have blocked it off in earlier years.

Thanks for your help but, I am looking for those that have tried to find what makes this truck better. Fixing the problems that the design factors have caused. Like having a turbo and then plugging up the flow with a cat. EGR taking 40% of the exhaust and cramming it back into the engine. (Nothing like force feeding 40% of your waist back through for a rechew)

Now I have heard a lot about the air cleaner being good enough. Fuel filter doesn't last very long. (I was told that it needs to be change every oil change), If I am pulling a heavy load up the steep mountain (6%~7% grades) that the EGT's get to high and a bigger exhaust is the answer. 3.73's with 35" tires, I would like to run a programmer to fix the speedo, and add a few ponies.

http://xr650r.borynack.com/gif11.gif

http://xr650r.borynack.com/

I don't want to be a smart @**, but it sounds like you already know the answers to your questions and all you need to do is buy the stuff.

Dan

I don't want to be a smart @**, but it sounds like you already know the answers to your questions and all you need to do is buy the stuff.

Dan
OUCH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
He's just looking for some advice from others.
I personally say keep it stock and under warranty.
Dan

Mine is stock and it's going to stay that way. It ain't broke and I'm not gonna mod it until it is. Lordy, 650 ft/lbs of torque is pleanty-enough for this old man.

Steve

I am not a diesel guy but, have enough friends that have theirs. Mostly 7.3 Fords. I setup Baja race bikes on the side and have done the racing thing for lots of years. I know there are a lot of you that are just happy with the truck the way it is. That is great. There are otheres that like to fix thing before they cause problem, and those that like to fix things till they break. :exactly:

I have seen the older ford's suck torbo seals because of the poor design of the stoc air filter. Recalls on the LBZ for glow plug problems. The left exhaust is a consern. High EGT's if you run heavy loads with the wrong programer. I was looking more for the techecal side of the truck, what are things that mack it better.
Yes, I know there are a bunch that are just looking to tell someone they got a new truck:blahblah: and a group to be a part of but, is there any here that have found what works best?

On anouther group they ran a whole bunch of different chips, programs to find what was good and what was not. I am finding a few that are saying that the 5" looses too much low end if you don't run Juice. Still don't know what a Fingers Stick is. Or what it does. Or if the EGR block off is the way to go.

the guy is asking questions about upgrades to improve upon his truck

"keep it stock" is not the answer for everyone, it sure wasn't for me, he obviously wants to mod it. so if you don't have anything constructive to post, then why post telling him to keep it stock

as for the exhaust, you don't really need 5" untill you get to 500+hp, and there is no penalty towards the torque by increasing exhaust size. I would deffinately get rid of the cat and block the EGR "some of the first mods I did to my truck". I have an 05 LLY, so I don't know the deal with blocking codes from being thrown on the LBZs. I believe fingers may have a fix out now "also did this mod on my truck"

oh and 04.5+ truck with the VVT turbo do not have wastegates on the turbos.

Still don't know what a Fingers Stick is. Or what it does. Or if the EGR block off is the way to go.

a fingers stick is an electrical circuit designed by a member here "Fingers" that blocks codes from being thrown from free flowing exhaust, intakes, or blocked EGRs.

EGR block is deffinately a good thing, you would not believe how much crap is being recirculated into your intake and gooking things up. My oil stays cleaner for longer now that I have mine blocked.

Look at my signature. "Keeping it stock" didn't even cross my mind! This should give you some idea of what can be done to the LBZ (Still only a part of what can be done, but and idea nonetheless). I still have some things I would like to do but I defintely have no problems in the EGT area. I still get a few codes from the new turbo (usually overboost) but ATS Diesel has pretty much got that worked out. I gotta agree with BigShrimpah, those are good things to do. In my eyes you are on the right track if you want to make a great truck even better.

how do you go about blocking the egr on a 05 lly

You'll see some quicker spool-up of the turbo with the EGR blocked and the finger stick seems to have just gotten a Green flag on some LBZ-equipped trucks so no issues there. Exhaust will help tremendously! Even if it is only cat-back, but some ditch the cat and notice very small gains if any. Intakes are also plus or minus. Plus is it breathes easier. Minus is potential for a MAF code from an oil-coated MAF sensor.

Now were getting somewhere:cool2: . The Fingers Stick is now explaned (I thought that the PPE was the only blocker, see how much you can learn if you ask?) and the EGR will be blocked.
I have seen it hinted that the 5" doesn't do a whole lot but, look cool and keep the exhaust cooler also. I guess I'll have to make up my mind what will be the best for me. They are almost the same pice. I think I would like to go with a resinator in place of the cat to keep the drone down. Keeping the cat to put back if/when we have to smog theys trucks.
Has anyone put the left after market manifold on?

http://www.kennedydiesel.com/dmaxexhaustmods.html

Just doesn't make sense to have one side restricked that much for no reason?? :confused: More of I just don't like the looks of that.

Thanks for the answers! Seems there are some tech guys here after all.:cool2:

http://xr650r.borynack.com/gif11.gif

http://xr650r.borynack.com/

Mine is stock and it's going to stay that way. It ain't broke and I'm not gonna mod it until it is. Lordy, 650 ft/lbs of torque is pleanty-enough for this old man.

Steve

Steve, except maybe lowering the EGT just a bit with a freer flowing exhaust, stock is great. Roger that on 650 ft/lbs...I feel like I could pull Memorial Coliseum off it's foundation! I probably could have saved them some money on the removal of the cooling tower @ Trojan, too!

:lol:

Michael out in Hillsborito

Steve, except maybe lowering the EGT just a bit with a freer flowing exhaust, stock is great. Roger that on 650 ft/lbs...I feel like I could pull Memorial Coliseum off it's foundation! I probably could have saved them some money on the removal of the cooling tower @ Trojan, too!

:lol:

Michael out in Hillsborito

Hey Michael,

If you couldn't pull Trojan over, the two of us could have!!!! Fer sure.

I wonder how much of your and my hard earned $$$$$ went into Trojan? Heck, it would have been worth it....if we could have pulled it down.

Sorry about my stance for reasonably stock. My brother-in-law, who is from Wenatchee, Washington, recently broke down in Podunk, Maine. He runs a Ford F-450 with the 7.3 diesel chipped to the absolute max and he pulls a trailer that is about as large and as heavy as our house. He absolutely trashed his transmission and it cost him $6,000 - $7,000 (prolly at Joe's Garage) to get him on his way.

I'm too darned old to mess with stuff that I don't understand and break the weakest link that is left. My sincere hope is that my "Dream Truck," my new 2006 LBZ, is properly engineered in the first place and will last for a long time. If not, I'll dump it and start over again.

Greetings from sunny Milwaukie (actually, Oak Grove), my friend.

Steve

Hey Michael,

If you couldn't pull Trojan over, the two of us could have!!!! Fer sure.

LOL...I bet we could have at that. Since it's down, let's head for Memorial Coliseum instead. hehehehe...

I wonder how much of your and my hard earned $$$$$ went into Trojan? Heck, it would have been worth it....if we could have pulled it down.

Too much of our $$$$$ went into that money pit, Steve.

Sorry about my stance for reasonably stock. My brother-in-law, who is from Wenatchee, Washington, recently broke down in Podunk, Maine. He runs a Ford F-450 with the 7.3 diesel chipped to the absolute max and he pulls a trailer that is about as large and as heavy as our house. He absolutely trashed his transmission and it cost him $6,000 - $7,000 (prolly at Joe's Garage) to get him on his way.

I have no problem with stock. Stock works. The R&D put into the units by the factory can't be beat. And Yeah, I know about your bro-in-laws pain. My bro-in-law owns a fairly new (2001) F-350 "No Stroke". He noticed a lot of trucks in the local dealership service area getting tranny work and asked about it. The service writer told him he would probably see him again soon for his tranny as they seem to be a weak point. He also told him that the Dodge units have had problems. I may be wrong but I believe that Ford and Dodge basically upgraded a tranny that was designed for a gas engine application and they just don't stand up to the torque demands when towing. My bro-in-law tows his toys (toybox trlr, travel trailer & 4-wheeler trailer) a lot and now he's considering dumping his truck for a new GM diesel with the Allison. He even asked to drive mine and I gladly turned over the keys for a test drive. He came back with a big smile and said, "Man, I had no idea what I was missing! This thing hauls!"

I'm too darned old to mess with stuff that I don't understand and break the weakest link that is left. My sincere hope is that my "Dream Truck," my new 2006 LBZ, is properly engineered in the first place and will last for a long time. If not, I'll dump it and start over again.

Don't think you are gonna have to do that, Steve. This is my second DMax and I worked the first one hard for almost 200K miles with no major component failures. That's why I bought this one. I'm confident it will give good, and valuable, service.

Greetings from sunny Milwaukie (actually, Oak Grove), my friend.

And greetings from Hot Hillsburrito, my friend. At least it ain't as hot as earlier this week, eh?

I think I would like to go with a resinator in place of the cat to keep the drone down. Keeping the cat to put back if/when we have to smog theys trucks.
Has anyone put the left after market manifold on?

http://www.kennedydiesel.com/dmaxexhaustmods.html

Just doesn't make sense to have one side restricked that much for no reason?? :confused: More of I just don't like the looks of that.



as for drone, my truck has NO DRONE AT ALL on the highway. And I have no resinator in place. Hell, LB7s came with no CAT, so why shouldn't that be good enough for an LLY or LBZ.

http://video.dieselplace.com/search/volant/0/3F17C71C-9A80-40E1-8B32-9EDD587C854F.htm

that is my catless + Volant 4" LLY, but yours would proboably be even more quite since it is an LBZ.

and as for free flowing manifolds, well it is all being restricted in the turbo anyways

LBZ YFZ-
Thanks for helping that gentleman out...

I have an LBZ myself and youv done exactly what I want to do myself...
You mentioned you have thrown codes due to overboast from ATS turbo...have you thrown codes from the cat delete???

Also if possible could you take some pics of your truck with the leveling kit? Do you like it? Thanks dude!

Martin

No drone on mine. Read sig or garage for details!

Mine is staying stock as well. I've have two built up cummins', but I think this truck is going to stay completly stock. Maybe a 4" exhaust for better sound sometime, other then that I think they need to remain stock.

Mine is staying stock as well. I've have two built up cummins', but I think this truck is going to stay completly stock. Maybe a 4" exhaust for better sound sometime, other then that I think they need to remain stock.

Why do you think that? Someone have problems with adding 40hp? Blocking off the EGR? Bigger exhaust to reduce EGT's compromized this engine? I haven't heard anyone having any trouble with any normal (below 100hp) mod's on any of the Dmax, have you? Is there a reason someone shouldn't find the week spots of this great engine and fix them? I am happy to hear they fixed the tubo seals, beefed up the cooling system, better fuel injectors. I do wish there were more that have use the after market free flowing left manifold or know more about the left restricted exhaust manifold. http://www.kennedydiesel.com/dmaxexhaustmods.html I do know that a better flowing intake (air filter system) reduces stress on the turbo seals (but, this Damx is said to be fine) Ford had a big problem with that in the past. Same with the exhaust. Just from this thread I have heard that the turbo spools faster (easier) with the EGR blocked off. Less carbon biuld up without the return of all that exhaust into the intake. I am not looking to turn low 13 second quarter mile runs but, I am looking to make life for this Dmax free from restrictions some dweeb greenie/tree hugger thought up to restrict this truck. :blahblah: Best reliable truck I can make out of it. With a little extra power when I need it:exactly:

how do you block off egr? and how do you get a finger stick?

the guy is asking questions about upgrades to improve upon his truck

"keep it stock" is not the answer for everyone, it sure wasn't for me, he obviously wants to mod it. so if you don't have anything constructive to post, then why post telling him to keep it stock The title of his thread is right there for you to not read; 'make it the best'. Some people interpret that in a less selfish way with consideration given to the pollution, noise and wasted fuel that affect others, as well as the durability and reliability that make good sense to people who outgrew their wild teenager phase, and even extending it to not screwing GM by getting them to pay for repairing damage caused by unauthorized mods.

Yeah I'm a fuddy duddy.

how do you block off egr? and how do you get a finger stick?
kennedy diesel has a kit with both.

The title of his thread is right there for you to not read; 'make it the best'. Some people interpret that in a less selfish way with consideration given to the pollution, noise and wasted fuel that affect others, as well as the durability and reliability that make good sense to people who outgrew their wild teenager phase, and even extending it to not screwing GM by getting them to pay for repairing damage caused by unauthorized mods.

Yeah I'm a fuddy duddy.

You got the fuddy duddy right;) but to each his/her own. Relative to the BD manifold. I'd say save your money. There is absolutley nothing that I can find to prove it helps anything except it costs you money, any my very qualified GM Tech agrees.

I guess if you have never driven a modded truck that really really runs then you don't know what you are missing. I know for a fact that I could never have a stock truck again. As far as trying to cheat on the warranty, I don't agree with that. If you want to play then be prepared to pay if you break it. I would bet that my truck is one of the cleaner ones on the road. The twins burn very clean and I get pretty good fuel milege if I don't keep my foot in it, (17 mph) I'm probably older than 90% of the guys who are members of this forum and if you can't get excited about making your truck perform I certainly can't make you. Just don't begrudge those of us who do. ;)

Well said!!! If its to fast , your to old. jk
I cant stand driving the stock ones knowing what they are capable of !

I don't know about all this. The person that started this post says over and over he wants to fix the weak links in this truck. He never says he wants all kinds of power. I think keep it stock is good advice. There is probably only one weak link in the stock truck, which is the transfer case. There's a thread in the drivetrain section discussing this.

Otherwise, this is a very powerful and capable truck, and really has no weak links, like some of the previous versions. Also, secrewing with emissions is a crime. Don't talk about it on the internet.

I don't know about all this. The person that started this post says over and over he wants to fix the weak links in this truck. He never says he wants all kinds of power. I think keep it stock is good advice. There is probably only one weak link in the stock truck, which is the transfer case. There's a thread in the drivetrain section discussing this.

Otherwise, this is a very powerful and capable truck, and really has no weak links, like some of the previous versions. Also, secrewing with emissions is a crime. Don't talk about it on the internet.

You have a link to the thread on the transfer case? I have not heard about it being the weak link. I have done heavy boosted lauches in 4x4 drag racing and so far it has held great. That is not to say it won't break. If I heard correctly Clint from ATS broke his T-case drag racing at Indy a couple of weeks back.

You have a link to the thread on the transfer case? I have not heard about it being the weak link. I have done heavy boosted lauches in 4x4 drag racing and so far it has held great. That is not to say it won't break. If I heard correctly Clint from ATS broke his T-case drag racing at Indy a couple of weeks back.

Weak link may have been the wrong word, although I'm not quite sure what breaks that little clip. This one takes a while to be a problem.

http://www.dieselplace.com/forum/showthread.php?t=86068