Anybody have any words to say about those new Aurora turbos from ATS?

Ted

Cant comment on the Dodge application of it, but the Dmax application works well on a mild truck, we have found lately that a slightly larger exhaust housing is needed on the extreme trucks to make them live.

I have put 5 of them on and more scheduled...at least for the dmax crowd

Thanks for the reply dmaxalliTech. I saw how well they worked on the Duramaxes which is exactly why I asked. I haven't heard anybody talk about them with the dodges yet. They do seem a bit pricey though, but then again I haven't looked at turbos in a while either.

Ted

Those are VGT turbos no?

They have a VGT turbo application then they also have the Aurora 5000. I am not sure of the applications for Dodge and GM but here is a link to the page.

http://www.atsdiesel.com/ATSWebsite/ProductsDodge/PDTurboSystems.asp

Looks like some pretty good stuff. :evil:

Schweet :Thumbup:

2500 is kinda pricey and I would assume you would have to have a computer do-hickey to make it work on a dodge.... But Id love to have fast spool and 60lbs of useable boost on a single....

Yeah I could live with that... :rolleyes:

Yeah, it sounds like a sweet turbo, but for 2800 I hope it is. Are there any Dodge guys running one of these Aurora 5000's yet?

I havent heard of any on a 2G or a 1st gen I think they are still beta testing the 3rd gen

Well, I'm sorry I haven't been around, but I have been researching turbos for the last week straight. I found out alot of interesting info from some very important people. I have been talking to David and Jeff, trying to find some good turbos for both a twin setup, and a large single.
The ATS Auroa 5000 is non-wastegated and is capable of producing 85 psi of boost with enough fuel. They say it is streetable, and have it on some daily drivers. Has a lag to 8psi then spools fine. You have to realize this thing has a 70-71mm inducer wheel on it!! The $2800 price tag includes a new downpipe (because an hx40 will not work), a new compressor outlet to the intercooler pipe, because it has a 3.25" ID outlet, and other hardware.
I know what base model this turbo is after alot of research, but am waiting to find out some more facts. I know that in its base form it has a 24cm wastegated housing on it.... It also is an extended tip wheel, and is billet, and I have found it for a 1/4th of that cost, but will require modifications to work, which is where the price comes from.
I'll keep you guys posted.

Thanks for the info, do you know exactly why the HX-40 downpipe won't work?

Ted

The flange isn't high enough to meet up with the exhaust housing. I think you might be able to just splice in a piece to an existing downpipe, but not 100% on it.

Why does their chit always costs an arm and a leg? I have been waiting for two+ months for a B1 Steroid. No matter if it's out of TAD's hands or not as to getting compressor housings, I have grown tired of the wait. ATS talks like they have sold a bunch of the 5000s but I have yet to read anywhere about someone using one. Any ideas how it would compare to the B1S? They did say 71mm inducer but would not say what size exhaust housing. One nice thing is they have them in stock which is hard for someone to resist who has been without truck for 2 months lol. They also said that if you wanted to upgrade to their twins down the road that use the 5000 on the bottom, you would have about $800 worth of usable parts off that $2800 single... ouch!

Ted if it is for your race truck your converter is pretty tight ......... it might be tough to spool on diesel only. No problem with the nitrous tho. JMO


J.R.

Thanks for the info JR, nice to see you over here also.

Ted

So Cowboy has the Inside Info on a reasonable faxcimile of a Aurora 5k ...is that what I'm seeing? Tell me more......

Well, it looks like I am getting closer. Having a hard time getting hold of one of my contacts. I don't think he likes to keep disclosing info, because it might hurt other performance companies. I am 95% sure I have the parts list to make it, but I need a good turbo shop to back me that has machining capabilities.
I just wish I could get access to a turbo catalog with some specs. Does anyone know where I could aquire one?????
The only down side to this project is it will need a new pipe or elbow to go to the intercooler due to the increase in size. I'll keep you guys updated, but for now my trans is my top priority..
Also, is our manifold outlet a T4 flange or not??

I have the Aurora 5000 on my daily driver right now. I'm in Colorado at 5000 feet. It does have some lag to it, but it is a very large turbo and as a single. It lags until about 8-10 psi and then hold on tight. With the amount of fuel I am running I can see 45 psi max boost up here. The HX-40 down pipe does bolt right up to the A5K. ATS has the discharge pipe going to the intercooler, and comes with the turbo when you buy it.

I have the Aurora 5000 on my daily driver right now. I'm in Colorado at 5000 feet. It does have some lag to it, but it is a very large turbo and as a single. It lags until about 8-10 psi and then hold on tight. With the amount of fuel I am running I can see 45 psi max boost up here. The HX-40 down pipe does bolt right up to the A5K. ATS has the discharge pipe going to the intercooler, and comes with the turbo when you buy it.

Have you had any problems with the discharge pipe being able to hold the intercooler boot on? From what I hear the pipe doesn't have any sort of lip at the end, and there isn't much of a straight area for a clamp to get a good hold of.

Can you tell when the turbo makes its transition from a small to a large turbo also?

Thanks,
Ted

Big rumor I'm hearing is surge problems... Are any of you ATS5k guys getting a surge at low rpms?

yes, you do get some surging at lower rpm's, usually around 20 psi at lite throttle, it gets annoying at times, you just have to learn to drive all over again. It won't hurt the turbo, but it makes your boost gauge dance around a little.

So at max boost with everthing on kill does it "clean up"??


J.R. :thanks:

With the fuel that I have, TST,VA, ATS 30%, MAD ECM, I get 45 psi and a good haze going on down the track. It's black and dark as can be at the tree, but about half track it goes to a haze. :smoke:

Have you had any problems with the discharge pipe being able to hold the intercooler boot on? From what I hear the pipe doesn't have any sort of lip at the end, and there isn't much of a straight area for a clamp to get a good hold of.

What do you think is causing the surging? Is that around the level that the turbo starts opening the other exhaust passage?

I believe they have a new design for the discharge that will have a lip on the end of it.

What do you think is causing the surging? Is that around the level that the turbo starts opening the other exhaust passage?

Actually they have not released the MST verzion yet. They haven't got the swing valve figured out yet. I have talked with alot of "turbo guys" and I was told the turbo would surge. Most hybrids are going to have a surge somewhere, because you are straying from the original application, and that causes your spot for problems.
This turbo is orignally designed to support a 12.7L diesel engine and that is what it was tested on, not a 5.9. Our little 5.9 doesn't have the flow to spool this thing like it needs to be. When you try to shove massive amounts of air using a large impeller into a small inlet using very little exhaust flow, you run into a problem. I bet none of these guys have towed with this thing on the truck yet. My bet is it will surge even worse with a load behind it until it gets spooled. Actually a truck that can pull higher rpm's would benefit more from this turbo if you ask me.
:blah: :blah: :blah: :blah:

oh ok, thanks for the clarification. I thought all the Aurora's were of the MST type, I must have misread there site.

Ted

Since I have run out of resources, and could use some backup, this is my info I have learned.
The subject being a K-31 (KKK or now currently a BorgWarner division) part #172743 also is produced as a Garrett verzion known as the GT42 part #731376-1. The Garret verizion is the original application for a Detroit 12.7L diesel engine. They could not keep up with the demand, so BW stepped up to the plate and used the K-31 to bolt on for the same application.
The K-31 has a 70-71mm inducer impeller composed of billet and an extended tip. It also comes with a 24cm2 wastegated housing (remember big rig). I found prices in a range from $750-$1800 for this turbo. It is a outright price, no core charge if you talk to the right places. It has a 5" inlet and 5" outlet.
It is a great turbo, and I wish I had more access to specs and what not, but I am not a turbo distributor, so this is probably where it ends.
The K-31 is used alot in the tractor pulling circuit, which also makes it hard to come by. The only other thing is that I wish BW would release some info and compressor maps like Garrett does. Why make it a big secret??
A S300G from BW (part# 174430) is an awesome turbo for around $800-900, and will support 500hp with no surge. We have it on a 24v right now, and we are very happy with it, and it is set at 38psi for the time being. You can't crank the boost on turbos because you think it will do good, it actually would just get you out of your efficency range and cause high IAT's and EGT's which is never good.
I have got a very good price on a Pro52 if anyone is interested, but I don't care for Holset all that much. There is also going to be a turbo coming on sale on the TDR for around $1600 that is a modified s300 with a 66mm inducer impeller that supports 675hp on a 3rd gen, and is a direct bolt up.
If anyone has any ?'s or want some tel numbers drop me a line, I will share what I know. Thanks for listening to me rant. :blah: :blah: :blah:

K-31
http://www.3k-warner.de/files/picture_commercial/bwts_picture_commercial_33_39.jpg


GT42
http://www.turbobygarrett.com/turbobygarrett/images/catalog/Turbochargers/gt42_images/GT4294_731376_1_part1.gif
http://www.turbobygarrett.com/turbobygarrett/images/catalog/Turbochargers/gt42_images/GT4294_731376_1_part2.gif
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT42/GT4294_731376_1.htm

There will be a quiz on this tomorrow boys and girls, so pay attention!

CB, you know to much......and it's a GOOD thing :Thumbup: Impressive job of putting pieces together.

There will be a quiz on this tomorrow boys and girls, so pay attention!

CB, you know to much......and it's a GOOD thing :Thumbup: Impressive job of putting pieces together.

I think you scared everyone away when you said quiz, because this thread has been dead since then. :shrug:

I didn't mean to...honest!

CB, you know to much......and it's a GOOD thing :Thumbup: Impressive job of putting pieces together.
Yes :agreed: for a Turbo newby like me I'm glad someone is willing to share some info for the good of the diesel world. :thanks:

Yeah good job on the research bro'. I would also like to add that the K31 does have a 71mm compressor wheel, and it comes with many different housings ranging from 9-32cm. I believe that ATS is using close to a 16cm housing, here is a breakdown picture.
www.turbomaster.info/mascara_dibujo2.php?modelo=K31W&nombre=K31&marca=3K This is a wastegated version off of an Iveco motor, Part Number 5331-988-7000. Don M dynoed 620hp with a GT42, I don't remember what the housing size was though. There is also a ball bearing version of the GT42, the Snow White Powerstroke is running a GT42-40 hybrid version. :smoke: :smoke:

some of the gt42s has a 1.01 a/r T4 flange witch is the smallest they make for it ,,, dunno if don had this butt i talked to some guys who saw him dyno it and it took for ever to spool but those r some good #s for a single.. U can get the 42 in three diffrent wheels sizes 70 71 and 76 on inducer the major is 94 or 101 i found a BB 42R cartriage that needed repairs and was going to get a custom smaller turbine housing butt it was going to b way out of my price range so i passed

Where can you get the exhaust housings from for these K31 chargers? When I call all they say is they have is the 24cm size, is there somebody out there that will sell me other sizes?

Up...Sorry that I don't have an answer to your question...but WELCOME to the DieselGarage. Glad to have ya hear. Kick off the shoes and stay awhile.

Dave

Just thought I would throw in, that I have a very good source to get downpipes, intercooler pipes, and stuff like that made, and for a very good price. All I need is a pattern made to use for reference.

Wow! Before I read this thread I thought I didn't know anything about turbos. Now I know I don't know anything about turbos!

Tony