Just Ordered An HX40WII

[bowtiebutler956]

Alright, I took a video of the truck at WOT for my baseline before the new turbo. In my slow trucks defense, it actually accelerates faster at about 3/4 throttle, as it allows it to shift a little sooner which seems to keep it in its power band better. However for the sake of a good comparison, I mashed the throttle, and held it there, so the video run is 100% WOT.
I'm sorry for the poor video, but I've been spending all my extra cash on the truck, so I can't afford a better camera. You will see a peek of about 12psi boost, as this is where I have the TM set, although I do still see occasional spikes of 14 on downshifts. The light that lights the needle on my pyrometer quit working (junk), but I thought it would still be visible on video, but not really. You can see a dark spot pass over the white numbers on the gauge but thats about it. In the video you'll hear me say something a little past the 2 minute mark. The first time I say 950, then 1000, and it finished at about 1050 at 85 mph. Also, the mark that is almost straight up on my boost gauge is 10 psi, just for reference, as its not very clear. Its really sad when I have to do all this explaining, just because of how crappy my video is!:mad2: Oh Well. :hihi:

I almost forgot, I wrapped the elbow off the turbo as well. (pics below)

Matt

https://www.youtube.com/watch?v=ee7lE2-synI

 

[bowtiebutler956]

Looks like tomorrow will be the day, although I wont be able to get started until after lunch. Other than sorting out the CDR. I think I have my ducks in a row. :thumbsup:

Matt

 

[Chevypoor]

Runs pretty good. Seems to stop pulling on the top end- the new turbo should take care of that. Nice job on the wrap!

 

[bowtiebutler956]

Runs pretty good. Seems to stop pulling on the top end- the new turbo should take care of that. Nice job on the wrap!

Thanks, and I'm hoping it runs a little stronger.

I was unable to start working on it until after 3 pm, so it isn't finished, but I have made progress. I can tell you that raceday's downpipe fits perfectly! Here are a few pics.

Matt

 

[Jorge6.5]

So far looking great. Shouldnt be longer till your done

 

[bowtiebutler956]

It Lives!! :sifone: First impressions are great, and I'm looking forward to getting it dialed in. This thing flat builds boost, and has a whistle louder than most 18 wheelers. The first test drive it shot up to 22 psi, spiking to 25 on shifts,:yikes: so I immediately backed off the throttle, and adjusted the wast gate down. I now have it where it will hold 16 psi, but it still jumps to 20 on shifts. I'm going to back it down more tomorrow. EGT's climb much slower than normal. I'll take it out to the countryside tomorrow so I can do some proper testing. I was going to reuse my panel filter, but it didn't quite fit with my elbow, so I picked up a universal filter at Oriellys for the time being, until I can come up with something better.

I have to say that Bruce's install kit was spot on, and everything fit beautifully.:agreed: I don't know why, but for some reason I didn't think you had to cut the intake with these turbos, but I was mistaken. I had to cut 1" off the intake as well as grinding off the bung that the old turbo to intake support bracket bolted to. That added some extra time, but all went smoothly, and turned out great. Anyway, here are a bunch of pictures, and I'll try to get some video tomorrow.

Matt

 

[tanman_2006]

Engine is too clean for any of my wrenches to touch.

NICE JOB!

 

[Chevypoor]

Engine is too clean for any of my wrenches to touch.

NICE JOB!

X2

Nice work, glad you got her up and running!:thumbsup:

 

[SnowDrift]

Does the housing actually touch the upper intake? It appears so in the photos, but I wasn't sure if it was trimmed back a bit later on. It seems like you would not want them to touch, for concern for metal particles grinding themselves off, in time, just due to natural vibrations in the components.

Stunning engine bay, incidentally. I'm green

 

[FellowTraveler]

Great job!

 

[bowtiebutler956]

Engine is too clean for any of my wrenches to touch.

NICE JOB!

X2

Nice work, glad you got her up and running!:thumbsup:

Thanks, I appreciate it.

Does the housing actually touch the upper intake? It appears so in the photos, but I wasn't sure if it was trimmed back a bit later on. It seems like you would not want them to touch, for concern for metal particles grinding themselves off, in time, just due to natural vibrations in the components.


Stunning engine bay, incidentally. I'm green

No they don't touch. It received one final trim before installing the boot. It has 1/8" at its closest point. Thanks

Great job!

Thanks

Matt

 

[bowtiebutler956]

I hate coming in here, and raining on what has been an exciting, and fun project up to this point, but I'm going to need some help from some of the turbo gurus to help me understand what I have going on here.
This truck is slower at WOT than it was with my GMX turbo! While it sounds amazing, and is making big boost, its not pulling stronger, which is the real reason for the upgrade. Its boost comes on very quick (quicker than my GM1), and I can feel a distinct seat of my pants improvement in power, but it falls flat on its face at about 26-2800 rpm, even though it has close to 20 lbs of boost. The EGT's climb much slower than before, and even holding it at WOT to 90, I can't make them go over 900. I thought maybe my lift pump had died, but I cracked the bleeder with the engine idling, and it has a good flow of diesel coming out. Another thing to note is my cruise boost is up. With my old turbo I ran 2-3 cruising at 70, and now I'm between 4-6. I suppose I could try turning up my fuel, as I have almost no black smoke, but somhow I don't think that is the problem.
I'm really starting to have doubts about this turbo having the 14cm housing like the ad says it does. You'll notice in some of my previous pictures (post #22) that the inlet side of the turbine housing has a 10 stamped on it. From my understanding on true Holsets this is the size of the housing, but this being a CKO, I just figured they put whatever there. Another note is that physically the turbine housing is much larger than my GM housing is. I don't really know what to think, but if this was a 10cm housing, that would be awful, but it still wouldn't explain why my EGT's are lower. :???::???:
This truck has a turbo whistle that I bet you could hear from a block away, but for some reason my camera will not pick up sounds in that frequency range at all. I'm sorry. Here is the video. Please Help!

Matt

https://www.youtube.com/watch?v=Lsa1SprE5gs&feature=youtu.be

 

[racedaymechanic]

I hate coming in here, and raining on what has been an exciting, and fun project up to this point, but I'm going to need some help from some of the turbo gurus to help me understand what I have going on here.
This truck is slower at WOT than it was with my GMX turbo! While it sounds amazing, and is making big boost, its not pulling stronger, which is the real reason for the upgrade. Its boost comes on very quick (quicker than my GM1), and I can feel a distinct seat of my pants improvement in power, but it falls flat on its face at about 26-2800 rpm, even though it has close to 20 lbs of boost. The EGT's climb much slower than before, and even holding it at WOT to 90, I can't make them go over 900. I thought maybe my lift pump had died, but I cracked the bleeder with the engine idling, and it has a good flow of diesel coming out. Another thing to note is my cruise boost is up. With my old turbo I ran 2-3 cruising at 70, and now I'm between 4-6. I suppose I could try turning up my fuel, as I have almost no black smoke, but somhow I don't think that is the problem.
I'm really starting to have doubts about this turbo having the 14cm housing like the ad says it does. You'll notice in some of my previous pictures (post #22) that the inlet side of the turbine housing has a 10 stamped on it. From my understanding on true Holsets this is the size of the housing, but this being a CKO, I just figured they put whatever there. Another note is that physically the turbine housing is much larger than my GM housing is. I don't really know what to think, but if this was a 10cm housing, that would be awful, but it still wouldn't explain why my EGT's are lower. :???::???:
This truck has a turbo whistle that I bet you could hear from a block away, but for some reason my camera will not pick up sounds in that frequency range at all. I'm sorry. Here is the video. Please Help!

Matt

https://www.youtube.com/watch?v=Lsa1SprE5gs&feature=youtu.be

Your defiantly going to need more fuel

 

[tanman_2006]

Yup, you are out of fuel at upper rpms.

 

[bowtiebutler956]

Your defiantly going to need more fuel

Yup, you are out of fuel at upper rpms.

Well, that makes me feel better. I had all kind of ideas running through my head! Hopefully turning up my pump will take care of it, as performance built IP's are expensive. My current ip is a 5088 6.5 NA pump that I turned up 3/8 of a turn before installing on this 6.5, but I'm sure it could handle another 1/4. Thanks

Matt

 

[3500GMC]

My thoughts would echo the above posts, also give the turbo a chance to break in.

 

[Jorge6.5]

Couldn't agree more. Right away I thought, the fuel needs to be turned up. I bet she'll move then!

I just went back and watched your video. Goes like hell up to around 45mph and after that it is just flat out slow.

 

[Will L.]

Looking good.
I noticed that top end fall off also. Yes turn up the ip, and get a fuel pressure gauge on there to watch for starving the ip on higher rpm. If you don't want to permanently mount one, run the hose up under the back of the hood and hold in place with a windshield wiper for testing.

 

[bowtiebutler956]

My thoughts would echo the above posts, also give the turbo a chance to break in.

Couldn't agree more. Right away I thought, the fuel needs to be turned up. I bet she'll move then!

I just went back and watched your video. Goes like hell up to around 45mph and after that it is just flat out slow.

Looking good.
I noticed that top end fall off also. Yes turn up the ip, and get a fuel pressure gauge on there to watch for starving the ip on higher rpm. If you don't want to permanently mount one, run the hose up under the back of the hood and hold in place with a windshield wiper for testing.

You guys could not have been more right about turning up the fuel! I turned up the fuel screw another 1/4 turn, and you wouldn't want to stand next to my tailpipe when I mash the go pedal! If it wasn't already dark, I'd be out taking a video right now. It doesn't feel like the same truck, and now pulls hard to 34-3500 rpm where it drops off sharply. If I could make the tranny shift a couple hundred rpm sooner, it would be perfect. I can tell you right now that 60 comes a whole lot sooner! While I realize its not as fast as some of the other amazing 6.5 builds here, I can tell you that I've never been behind the wheel of 6.5 that felt this good. :thumbsup: Thanks for the great advice, and be watching for a video tomorrow.
Here are a couple pics of the IP apart today.
Matt

 

[NVW]

Happy to hear you got it sorted out.

If I was working on your engine my paw prints would be over everything.:hihi: