LBZ intake to LLY turbo? [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: LBZ intake to LLY turbo?


kylant
12-22-2006, 08:38 PM
Will an LBZ air intake bolt up directly to an 04-05 LLY turbo?

thanks

kylant
12-22-2006, 08:45 PM
specifically, I am wondering if the piece in this pic will attach directly to the LLY turbo? it looks like it tapers from 4" down to 3.

thanks

kylant
12-23-2006, 08:21 PM
anyone:confused: I know some of you guys have messed with the 2 turbos, swapped them out, etc... please

McRat
12-23-2006, 08:26 PM
The intake bell is the same on both chargers. The problem lies with the PCV and the aluminum feeder casting.

Might work. Not sure, haven't tried.

kylant
12-23-2006, 08:35 PM
Mcrat,

could you explain a little more please:o: looking at the pics the parts guy had, they look very similar if not the same.

they look like the pcv will go in the same spot. What is the aluminum feeder casting you speak of?


For the LLY engine, the part # is the same for 2004-including 2006 trucks, but the LBZ has a different part number.

Don't the 06 LLY and 06 LBZ use the same air intake?

thanks for your time

McRat
12-23-2006, 11:12 PM
Yes the 2006's all use the same intake assy. The 2004.5 intake is different than the 2006 LLY (which is not really an LLY).

The aluminum casting that goes on the top front passenger side of the engine that feeds boosted air into the engine is different on the LLY's vs. the 2006's. The intake path is affected by the different casting.

kylant
12-29-2006, 07:11 PM
It works! I picked up the LBZ intake part #98011738 to try it out. it works, but due to the bigger pipe diameter it ends up being rotated about 5-10* to the right. this rotates the PCV port as well. I ended up having to bend the PCV port just slightly in order to keep the pcv hose from being kinked. the rest of the intake bolted righ up.

i have noticed in my short drive after install, boost seems to be up about 3lbs from 21 to about 24 stock.:)

we will see if it all pans out to be okay

Dr_goodwrench66
12-29-2006, 10:44 PM
You got a pic of your new setup?

SixPak
12-29-2006, 10:49 PM
It works! I picked up the LBZ intake part #98011738 to try it out. it works, but due to the bigger pipe diameter it ends up being rotated about 5-10* to the right. this rotates the PCV port as well. I ended up having to bend the PCV port just slightly in order to keep the pcv hose from being kinked. the rest of the intake bolted righ up.

i have noticed in my short drive after install, boost seems to be up about 3lbs from 21 to about 24 stock.:)

we will see if it all pans out to be okay

Be sure and let us know if you have any performance or mileage gains!

:nopics:

kylant
12-31-2006, 12:48 PM
i will post pics soon. we'll see how this works out. i still need to go to the dealer and have the updated programming done. i am gettting p0101 maf codes, but i was getting them before the intake change. i have an fe9 truck so they are soft codes and don't seem to affect performance.

Wolford
12-31-2006, 07:15 PM
You will need to recalibrate the MAF for the knew readings its going to get.

kylant
01-04-2007, 12:49 PM
just got back from the dealer for the programming update. it took about 15 min. the tech let me watch as he did it. pretty cool.:) i'll get pics soon

Buck
01-05-2007, 08:45 PM
Just to clarify, the part you replaced was the black composite duct that connects the turbo to the intake duct right? The part costs about $70?

I've been thinking of doing this but going with an aftermarket LBZ intake kit. Are you running the complete stock LBZ intake system?

samfraser
01-05-2007, 08:49 PM
Hey kyle, glad to hear it works, put up some pictures!!!!

kylant
01-06-2007, 01:53 AM
Yes, I am running the complete LBZ factory intake from the filter all the way to the turbo inlet.

The TSB states to retain the factory LLY turbo intake, but to cut it down in order to attach to the LBZ duct work. I did not want to do that, so I got the LBZ duct.

The duct mounts right up, although it is rotated about 10* to the right and I had to just slightly bend the hard PCV tubing in order for it to mount on the new piece without kinking the tubing. On the very far left side of the duct, it just bearly clears the EGR coolant outlet pipe, there is about 1/16th of an inch:o:

I will try to get pics tomorrow, (if i remember):rolleyes:

samfraser
01-06-2007, 12:18 PM
does it run any better?

Buck
01-06-2007, 09:11 PM
Yes, I am running the complete LBZ factory intake from the filter all the way to the turbo inlet.

The TSB states to retain the factory LLY turbo intake, but to cut it down in order to attach to the LBZ duct work. I did not want to do that, so I got the LBZ duct.

The duct mounts right up, although it is rotated about 10* to the right and I had to just slightly bend the hard PCV tubing in order for it to mount on the new piece without kinking the tubing. On the very far left side of the duct, it just bearly clears the EGR coolant outlet pipe, there is about 1/16th of an inch:o:



I would rather have the LBZ turbo duct as well, 1/16" is enough clearance... just as long as it isn't touching. I have the pcv tube capped(pcv reroute) on mine so that is a non issue for me. I like the volant LBZ intake but can't justify the $$$ for it????

Yeah, how does your truck run now? Is there more turbo whistle?

I would like to see a flow & IAT test on the stock LLY intake with Tx style CAI(what I have now) vs. the stock LBZ intake vs. the LBZ volant kit. All the info that I've seen so far suggests the stock LBZ intake flows about 20% more than the stock LLY.

SixPak
01-06-2007, 09:20 PM
Kylant, what was the total cost to change over to the 2006 intake?

kylant
01-06-2007, 10:06 PM
truck does seem to run better. it seems my boost is up from 21-22 to about 24 (stock). I haven't noticed any more turbo whistle.

I am running the TX cai and the 06 set-up. I ended up not using the duct that goes into the fender because it is a piece of junk, never fit right, and ended up covering the holes in the side of the fender:rolleyes:

I also did not use the "foam" block for the radiator shroud or the lower fender deflector piece that looks like a "Y". this ended up blocking off the area where the TX cai takes its air from. I did not see how this would allow cold air to be drawn up into the system. I ended up taking the lower portion of the TX cai and "bending" it back toward the front of the truck and tacked it up to part of the undercarriage (i don't remember if it was frame or support) with 2 GM push in retainers. I just drilled small holes through the CAI, and the holes were already in the undercarriage.

all in all, it seems to be better.

I'm into if for about $300 because I wasted money on useless part. Kind of expensive,, but it is GM and I won't get any hassles. I got the programming updated for nothing, even watched the tech do it. Took about 15 minutes. So far, I'm happy:)

kylant
01-06-2007, 11:45 PM
1/16" is enough clearance... just as long as it isn't touching.

This got me to thinking, so I went out and checked mine again. Sure enought, it IS touching the Egr coolant outlet, but it is touching on the rubber hose, not on the metal itself. Do you think this will be / is a problem?:o: If so, I will need to go and make an adjustment, but I think I will have to "readjust" the PCV hard tube again.

thanks

kylant
01-07-2007, 12:22 PM
i made the adjustment, there is about 1/8" clearance now. I also snapped a bunch of pics that I will post later. I don't have time right now

kylant
01-08-2007, 11:55 AM
here are the pics. there are pics of the intake (there IS about 1/8" clearance between the EGR colant outlet pipe and the intake), the PCV hose "redirected," and the underside of the TXcai where I have "pinned" the lower portion up. you can seen the bottom of the airbox.