I'd be interested to see this video. Nobody here at ATS has ever had an IDI with an A3k on it.

What do you want to know about the A2k?

As for the A3k, it is our own creation, it is a 200/300 hybrid that we create in house. Technically my charger is now a 300/200 hybrid as well.

 

This is the A2k, PN: 317246 (.76 housing). That should bolt straight into an 093 setup, and with the turbo hats I have look just like an 093. It has a milled flange side on the discharge for use with our adapters like you see in my picture of my turbocharger.

http://www.spsturbostore.com/borgwar...pn-317246.html

Here is the A2000 hat:

(mixed in with exhaust housings)




The A3K, as I said, is not a box stock charger, it is our in house creation. It is an S300/S200 hybrid with our own cast compressor cover. Spools like the A2K, supports more power. It replaced the A2k.

 

Thats exactly what and why ive been doing a bunch of these upgrades. the 60 -1 is a compromise but its a lot better than the stock wheel. and I hit 12-17 regularly.
My next turbo is going to be a frankenstein, with a to4e housing, going to have to mod my intake or hat to fit.

 

I thought It was one of your videos. It had your logos all over it, but i guess thats not hard to do now a days. I'll see if I can find the video. Might take me a bit, but I'll find it.

 

It could of been evan, he used to have a few IDI's.

 

12psi limit like maps above



maxed out stocker/90cc pump





As far as maps go, google image search is the best source, just have to weed through to find the correct maps...

 

I know, I remember you from turboford... You sold me an E6 a long time ago.

As far as the 60 trim goes though, its not real good for something over around 10psi or so (it will do it, but your in stock turbo territory for efficiency)... Its not really worth "upgrading" to...

12psi boost limited:


maxed pump/90cc peak boost:

 

This is why I want to try out the A3K on my truck. I know we have talked about it, and I think having a back to back comparison with my S362 would be awesome. I think this would be a great turbo for our trucks... may be a little hot with the amount of fuel you and I are running, but I dont think it will be too hot.... I think Im going to try and find an .82 WG'd garrett housing and graft it onto my 362, and run it on the ATS setup. Then I can toss an A3k on there and have back to back comparisons... Its a plan anyway

 

So what compressor is in the A3k? a 64... 66? Racin could you not pretty much make one out of your S362?

 

A3k has a 59mm inducer.
A4k has 63

 

The numbers I got for the A3000 from Thoroughbred Diesel are a little different... This is what I have dug up on the Auroras and similar Borg Warner S200 platform turbos:

Aurora 3000:
compressor = 57mm x 84mm
turbine = 73mm x 64mm
Exhaust housing = .85 A/R T3

Aurora 2000:
compressor = 56mm x 80mm
turbine = 74mm x 65mm
Exhaust housing = .76 A/R T3

NMB2 says Aurora 2000 is a Borg Warner S200, part no. 317246. BW also lists a S200 with a .85 A/R housing as part no. 317222 which would make it extremely similar to the Aurora 3000, at least specification wise.*

These turbos seem a little "small", in that the compressor is about like an HX35, and they are physically a little smaller than an HX35, but according to the diesel power mag review of the Aurora 2000, it can move 877 cfm (vs 555 cfm for HX35), and spooled faster 3.7 sec (vs 6.1 sec) on their Cummins. Don't know how the spool of the .85 housing on the Aurora 3000 compares, but supposedly quick compared to the Holset.*

Boostlab also sells a Borg Warner S259, which it touts as "the highest flowing S200 model" and "the latest in quick-spool, high-flow aerodynamics". This seems like another turbo similar to the Auroras:

S259
compressor = 58.6mm x 79.8mm
turbine = 69.6mm x 60.6mm
Turbine housing .70 A/R
Compressir housing .55 A/R
Flow = 60 lb/min (868 cfm)

There is also a Bullseye Power S259 unit that supports 350-600 hp.*
compressor = 58mm x 80mm
turbine = 74mm x 64mm
Available with .85, .76, .70, and .55 A/R exhaust housings.*

All these turbos are "expensive" by comparison to the glut of used, stock turbos available on eBay, and still pretty high compared to say, a basic new S256, but it seems that the performance is commensurate with the price tag.*

 

It's hard to list a bunch of turbo specs in a forum thread in a way that makes them easy to compare, but it seems like the Auroras (compared to many other turbos) have noteably large turbine wheels in relation to the compressor wheel, and noteably small compressor wheel trim fractions. Just an observation....

 

I could be wrong, but it almost seems like you're trying to dispute my numbers with me?

You do know I work for ATS right? I'm about a 1 minute walk to our turbo shop, thoroughbred is one of my dealers, but they are not the subject matter expert on all of our turbos, I am.

The A3k is a 59/84 compressor wheel. 74/65 turbine wheel. It comes in either a .76 T3, .85 T3, or 1.0 T3.

 

What? you dont work for ats...

 

My appologies. In re-reading my post it does sound as if I was "correcting" what you said, when in fact that was not my intention at all. I was repeating what is posted on the Thoroghbred site, and was hoping you could verify one way or another if the info. was correct, which you have. Sorry if I offended you, was not my intent. And yes, we are extremely fortunate to have THE expert at ATS contributing to this thread.