Holset Turbos on LB7's

Cummins Driver said:
Yeah, we need 4k in our transmissions, but the Allison does too if you dont want the junky thing limping everytime you hit a hill in overdrive with a load. .
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I have 2750 in mine and its been holidng 85,000 miles and a built motor with twin turbos. Stock hard parts too. Dumbass.
 
Cummins Driver said:
Most duramaxes have a hard time making 500hp with EFI, intake, exhaust, and pusher pump. Most i see are 475-480.
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then you're not looking hard enough. Why isnt your truck over 500rwhp if its so easy on a 12 valve? and dont say "well I dyno'd xxxhp BUT SINCE THEN Ive added a new kanibbly pin and realigned my muffler bearings, and GUYS WHO ARE RUNNING MY EXACT SAME SETUP (thats my favorite bench racer phrase ever) are making over 500rwhp"
 
Man, some people get fired up when they know the other person is right:hehe:

Hmm, you have already rebuilt your motor AND transmission? Wow, thats one tough truck! :bang I havent rebuilt either of mine yet with 233k on the truck. :kick:

Why dont you tell me how many HP your transmission is holding. You might have twins with a stock tune for all i know.

My truck is about 360hp/low 14's. Right at the overheating and piston cracking level of the LLY..... Why isnt mine 500hp? I have better things to spend the money on right now. Its my daily driver. I have everything i need to make it happen, just need to finish building the transmission. When it goes out and i get it built, ill carry on with the power part of it.
 
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Lots of folks prefer manuals anyhow. ;)

Turbos gentlemen. Think turbos here. :)
 
duratothemax said:
I have 2750 in mine and its been holidng 85,000 miles and a built motor with twin turbos. Stock hard parts too. Dumbass.
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Theres no disputing that the Allison has better hard parts from the factory, but I get tired of hearing how they are the end all be all of transmissions. Dont get me wrong, the Allison is a nice transmission that is great for a daily driver/hauler, but for performance applications I would take a built 47/48RE over an Allison any day of the week. Ask Buck Spruill which one is better :D
 
No...nothing from Holset. I'll email my contact and see if they are done...or doing anything.

I fully expect them to come back and say they "do not support non-OEM approved applications of...." blah blah blah.

However the person I'm dealing with sounded interested in helping and said they were working on some "kits" for non-OEM applications.

I just want them to answer my question and fork over some HX40 and HX50 Compressor Maps and general necessary data I need. :)
 
Cummins Driver said:
Man, some people get fired up when they know the other person is right:hehe:

Hmm, you have already rebuilt your motor AND transmission? Wow, thats one tough truck! :bang I havent rebuilt either of mine yet with 233k on the truck. :kick:

Why dont you tell me how many HP your transmission is holding. You might have twins with a stock tune for all i know.

My truck is about 360hp/low 14's. Right at the overheating and piston cracking level of the LLY..... Why isnt mine 500hp? I have better things to spend the money on right now. Its my daily driver. I have everything i need to make it happen, just need to finish building the transmission. When it goes out and i get it built, ill carry on with the power part of it.
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this is why comp diesel sucks. you get people crossing between forums.

360hp overheating/piston cracking level? no. Its the LBZ's that crack pistons. BUT I forgot you know it all, just like in that other thread you said LB7's have better pistons than LLY's.

low 14's. wow. An LBZ regular cab runs high 14's and LBZ crew cabs run low 15's right off the dealers lot.

So if it only costs 1000 dollars to do 500rwhp, I would think your truck would be a little higher than a piddly little 360hp. Say 500 dollars will get you 425hp. I can do more than that (360) with that fisherprice thing they call a "Hypertech".

The allison in stock form wont hold much power, less than any dodge or ford trans, but it will hold more than 360hp. Your trans is original not rebuilt? You have a billet input, flexplate, converter, and transgo. And dont give me any **** about "well I had it out to change the fluid, it was still working fine, but I ya know, thought I might throw those parts in there for grins". Wasnt it you who lunched an input shaft at "only" 360hp? Yeah I think it was. Nice trans.

Twins with a stock tune. haha ok. yeah you're right Im running my built motor with a stock tune. Yep. thats it. I dyno'd 285hp a few weeks ago.

I built my motor and trans because Im going for 750-800rwhp. Yes we all know the cummins will do that stock, we also all know that dodge's are the best, thats why chrysler sells so many of them compared to GM's and fords.

hahaha I knew you would respond to my last post. I saw the "im done arguing with ben" line and said to myself "bull****, watch this, ill respond and Ill bet eric wil respond because he cant help himself". Everyone is wrong on the internet and we are all guilty of having really big keyboard muscles.

ben
 
teddybear said:
Theres no disputing that the Allison has better hard parts from the factory, but I get tired of hearing how they are the end all be all of transmissions. Dont get me wrong, the Allison is a nice transmission that is great for a daily driver/hauler, but for performance applications I would take a built 47/48RE over an Allison any day of the week. Ask Buck Spruill which one is better :D
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I dont disagree with anything you say Josh, thats exactly right.

Daily driving/towing at stock power levels, definietly allison.

All out HP, dodge trans anyday. Its so much simpler and being an old school overrunning trans there is no risk of tie ups. Running in the 10's or faster its just not possible to make the allison shift correctly and reliably. Forget using the allison at extreme power levels. You cant make any cluitch to clutch trans work properly in the situations we ask them to do. I have ALWAYS said this. I have never said the allison is better than the dodge trans at extreme power levels.

Dodge guys laugh and say "haha its cause the allison is a POS and our trans can be built to take more", but they have yet to realize that if guys ever start modding the cab/chassis trucks, theirAisin is going to reveal the same problems as the allison.
 
duratothemax said:
this is why comp diesel sucks. you get people crossing between forums.

360hp overheating/piston cracking level? no. Its the LBZ's that crack pistons. BUT I forgot you know it all, just like in that other thread you said LB7's have better pistons than LLY's.

low 14's. wow. An LBZ regular cab runs high 14's and LBZ crew cabs run low 15's right off the dealers lot.

So if it only costs 1000 dollars to do 500rwhp, I would think your truck would be a little higher than a piddly little 360hp. Say 500 dollars will get you 425hp. I can do more than that (360) with that fisherprice thing they call a "Hypertech".

The allison in stock form wont hold much power, less than any dodge or ford trans, but it will hold more than 360hp. Your trans is original not rebuilt? You have a billet input, flexplate, converter, and transgo. And dont give me any **** about "well I had it out to change the fluid, it was still working fine, but I ya know, thought I might throw those parts in there for grins". Wasnt it you who lunched an input shaft at "only" 360hp? Yeah I think it was. Nice trans.

Twins with a stock tune. haha ok. yeah you're right Im running my built motor with a stock tune. Yep. thats it. I dyno'd 285hp a few weeks ago.

I built my motor and trans because Im going for 750-800rwhp. Yes we all know the cummins will do that stock, we also all know that dodge's are the best, thats why chrysler sells so many of them compared to GM's and fords.

hahaha I knew you would respond to my last post. I saw the "im done arguing with ben" line and said to myself "bull****, watch this, ill respond and Ill bet eric wil respond because he cant help himself". Everyone is wrong on the internet and we are all guilty of having really big keyboard muscles.

ben
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I've watched this thread since it started and hoped it would bring out some interesting discussion. In some ways, it did. In others, well, quite frankly, it's been a disaster of epic proportions.

I've said it before, and I'll say it again. If you don't like this forum, you don't have to view the posts here or ever log in here again.

Personally, I think its neat that someone wants to try something a little different. It might work great, it might be a huge waste of time and money. The only way any of us will know for sure what happens is when someone tries it. Theory can be argued all day, results tell a much clearer story.

Neil, good luck with your project if you get to it. I'm interested to see the results and I'm hoping you'll start a thread about what happened.


...and, in that thread, I'll make sure it isn't hijacked.
 
partsguy662 said:
I've watched this thread since it started and hoped it would bring out some interesting discussion. In some ways, it did. In others, well, quite frankly, it's been a disaster of epic proportions.

I've said it before, and I'll say it again. If you don't like this forum, you don't have to view the posts here or ever log in here again.

Personally, I think its neat that someone wants to try something a little different. It might work great, it might be a huge waste of time and money. The only way any of us will know for sure what happens is when someone tries it. Theory can be argued all day, results tell a much clearer story.

Neil, good luck with your project if you get to it. I'm interested to see the results and I'm hoping you'll start a thread about what happened.


...and, in that thread, I'll make sure it isn't hijacked.
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Sorry about my part in the hijacking Scott:kick:

Otherwise, I agree 100% with what you said;)
Chris
 
duratothemax said:
this is why comp diesel sucks. you get people crossing between forums.

360hp overheating/piston cracking level? no. Its the LBZ's that crack pistons. BUT I forgot you know it all, just like in that other thread you said LB7's have better pistons than LLY's.

low 14's. wow. An LBZ regular cab runs high 14's and LBZ crew cabs run low 15's right off the dealers lot.

So if it only costs 1000 dollars to do 500rwhp, I would think your truck would be a little higher than a piddly little 360hp. Say 500 dollars will get you 425hp. I can do more than that (360) with that fisherprice thing they call a "Hypertech".

The allison in stock form wont hold much power, less than any dodge or ford trans, but it will hold more than 360hp. Your trans is original not rebuilt? You have a billet input, flexplate, converter, and transgo. And dont give me any **** about "well I had it out to change the fluid, it was still working fine, but I ya know, thought I might throw those parts in there for grins". Wasnt it you who lunched an input shaft at "only" 360hp? Yeah I think it was. Nice trans.

Twins with a stock tune. haha ok. yeah you're right Im running my built motor with a stock tune. Yep. thats it. I dyno'd 285hp a few weeks ago.

I built my motor and trans because Im going for 750-800rwhp. Yes we all know the cummins will do that stock, we also all know that dodge's are the best, thats why chrysler sells so many of them compared to GM's and fords.

hahaha I knew you would respond to my last post. I saw the "im done arguing with ben" line and said to myself "bull****, watch this, ill respond and Ill bet eric wil respond because he cant help himself". Everyone is wrong on the internet and we are all guilty of having really big keyboard muscles.

ben
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Look, we can do this for eternity. I already said they both have their ups and downs. If you put a duramax in my driveway beside my dodge id probably drive both of them depending on what i was doing. I have been in Josh's LMM a lot this year hauling his dodge to pulls and it pulls great with a PPE on the lower levels.

I see you built your transmission yourself, and do most of the things on your truck yourself. That alone makes me have respect for you/your truck because that is how i usually do it. The only thing that has been done to mine that i havent done was the timing because i didnt have the tools then. Ill be bumping it whenever i stud my head. I dont imagine i will tackle the transmission but id like to learn how to build them one of these days. Its hard to beat letting Goerend do it for that good warranty though:rockwoot:Tuning it yourself is also something most D-max guys wont get into. Everybody has efi live but hardly any of them use their own tunes. I was never trying to get into a big fuss with you anyways, just was trying to help this guy with holset turbo's.

Now, I think i was nice in that post:hehe:, so back to our regularly scheduled thread...
 
Its OK. I understand when people get talking about their brand of trucks...it can really get interesting! I've been involved in diesel internet forums for 7 or 8 years...and I know the passion that exists.

I plan on keeping my ideas and results here in this thread. This site is the only site that has even been responsive to the idea...good, bad and middleway. Probably because this site was born out of diesel modifications. By people who started doing things before it was cool. Or before there was a kit or package you could buy. Build your own. :)

I'm collecting specs, writing things down, talking here and face-to-face with folks. Very soon I should have the list of exactly which parts I want to go with. Key here is the HX50 exhaust housing. Thats what I'm most concerned over. Otherwise I'm awaiting an answer from Holset. They wrote me back and wanted a bunch of info from me...so I at least expect a "sorry". :)
 
Signature600 said:
Pics??

Never seen anything other than an 855 Cummins with 3 heads;)
Chris
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i would love to post some.. but didnt think anything of it in 03 when i was working on them. we had them in 7m RHIB and 15m whale boats. ran a non-intercooled setup at 180hp
 
duratothemax said:
this is why comp diesel sucks. you get people crossing between forums.
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Man, You get to come on here for free and waste your time on here for free posting and reading and then you got the nerve to say that. I wonder if I should do a search of your name and see if you have crossed between forums. I have sat back and read this whole thread and all I gather from what you have posted is that the originator is a complete dumb*** because he doesn't setup his truck the way that you think it should be.

The man wants a holset turbo so who are you to tell him in fewer words that he is stupid for thinking such a thing. I say go for it. every damn mod that duratothemax has on his truck all started with one mans thought. Bet you didn't think of that.

I think that behavior like this and slander toward this website should be followed with the moderator taking away the freedom you had on the website.

To the originator- I like your idea. Don't let this guy burst your bubble. If you do this turbo swap I want to hear about it. I don't have any good info to help you with this swap but I am sure that someone on here may have the informative info you need. I am sure that it will work and once you do it, figure out all the bugs and add to what is needed for the turbo to perform (If it needs anything) you will have something that no other dmax guy has and you did it your way.
 
duratothemax said:
this is why comp diesel sucks. you get people crossing between forums.
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Well, your off the CompD Christmas card List!




Blackdog said:
Man, You get to come on here for free and waste your time on here for free posting and reading and then you got the nerve to say that. I wonder if I should do a search of your name and see if you have crossed between forums. I have sat back and read this whole thread and all I gather from what you have posted is that the originator is a complete dumb*** because he doesn't setup his truck the way that you think it should be.

I think that behavior like this and slander toward this website should be followed with the moderator taking away the freedom you had on the website.
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BlackDog,

Thanks for the suggestion we took it into consideration, then we decided by looking at his post count , and his continuous visits to CompD, that secretly he loves us and can't live without us. I for one wouldn't feel right taking that away from him.

Thanks Dura2ThaMax for being a member here.:thankyou2:
 
Wideopen- I am not trying to ruffle any feathers, I just don't like it when people post up continuous negativity toward one mans idea and then express bad comments about this great website.
 
Blackdog said:
Wideopen- I am not trying to ruffle any feathers, I just don't like it when people post up continuous negativity toward one mans idea and then express bad comments about this great website.
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No feathers ruffled here..

Someone Famous or Stupid? said:
You can please Some People all the time, and All the People some of the time.....But you can't please All the People All of the Time.
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I'm not going to change the way we do things here to satisfy one person....unless that one person is me..LOL
 
Neil, a 17cm housing off of an H2E turbo can be machined inside for the bigger turbine wheel in an HX50 and will then clamp right on. I have also seen HX55's with 17cm housings on them. I have also heard that s400 exhaust housings will clamp onto hx55 turbos.
 
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