80 lb/min turbo discussion

[99gst_racer]

I'm in the market for something around 80 lbs/min (give or take), and I just want to see, discuss, and consider all options before buying. I'm really in need of something with a 1.00+ A/R housing. 1.10 would be preferred.


GT4094R - ~80 lbs/min. These are expensive as hell, but perfect otherwise. Many available housing sizes.

Holset HX52 - I can't find a definitive compressor limit on this one. Anybody know? Also, is there such thing as large open T4 housing for these or are they all divided?

BW S366 - ~78 lbs/min. I really like this one so far. Still have alot of reading to do though.

Turbonetics GTK-850 - ~80 lbs/min. This one isn't much of a consideration due to it's price and the fact that I'm not a big fan of Turbonetics.


Any others? I'm completely open to suggestions. Any spool info on a 2.0L would be greatly appreciated as well.

 

[silentscreamer]

The only thing i can really throw into this is from what i found between a few forums is the holset hx 52 is 88lb/s flow and the flange is t5 pattern, which is vehicle specific (generally speaking volvo semi truck) i have yet to find any other turbine housing options for the hx52. hopefully this is atleast somewhat usefull.

 

[99gst_racer]

Thanks for the post. I wish Holset had something between a 40 and a 52. Like a large T4 HX48 or something like that.


Anybody know what a PT6266 flows? I can't find a compressor map for it.

 

[JusMX141]

If I were you, Paul, I'd play around on the Cummins forums a little and see which of either the HX52 or S366/368 respond better to compounding. Surely someone is using one of the two as the larger in a compound system on a Cummins.

I believe the HX52 turbine is larger than the turbine used on a S366/368, so that particular unit may favor more turbine flow. There are no open-flange HX52's to my knowledge.

 

[DSMGraveyardinc]

I have a 52 locally if u want to physically check one out

 

[juvi1624]

The PTE 6765 billet is a pretty nice turbo. I'm not sure right off the top of my head what a/r turbine housings are available or what the exact flow rate is, but it's rated to 900 hp and I know a person who is making more than that with it. Are you still keeping a compound setup or just using one big turbo?

 

[99gst_racer]

I believe the HX52 turbine is larger than the turbine used on a S366/368, so that particular unit may favor more turbine flow.

I wonder how the two compare are far as spool goes? I'd like for it to be no slower spool than 20 psi by 5K, in a ~1.1 A/R housing. I have some wiggle room there though.

Is is safe to assume the HX52 and the S366 are my two best affordable options?

Are you still keeping a compound setup or just using one big turbo?

Still compounding. Just looking for something to feed my 20g.

 

[1997_GSX]

I have a GT4094r but haven't got to run it, thinking about getting rid of it, has less than 100 miles. Still has the white paint on the compressor wheel. Have you looked at a ball bearing PT6768?

 

[99gst_racer]

I have a GT4094r but haven't got to run it, thinking about getting rid of it, has less than 100 miles. Still has the white paint on the compressor wheel. Have you looked at a ball bearing PT6768?

I haven't really considered much of anything from PTE, or much of anything over $1K. I'll check it out though.

PM sent.

 

[nfernotalon]

I believe the hx52 is your best bet you can get a rebuildable core for 175 and rebuild for what another 100 bucks? I still haven't heard of anyone pushing the hx52 or 55 to it's limit in a well built set up and I'd love to see that.

 

[turbotalon1g]

Are you just looking at new stuff + holsets?

why not an old PTE 76mm? There should be some floating around for cheap.

 

[JusMX141]

why not an old PTE 76mm? There should be some floating around for cheap.

The old PTE turbos were inefficient by today's standards, and about as reliable as the US Government.

 

[TSimage]

I have a spare polished housing HX52 billet (the same one that is detailed in my blogs) Its FS so if you're lookin, hit me up.

 

[99gst_racer]

Can anyone confirm that an HX52 flows about 88 lbs/min? Anyone got a compressor map? I can't seem to find much info on spool times either...

 

[RadDsm]

Idk if this helps, but I found it on a Nissan forum.

You must be logged in to view this image or video.

 

[turbotalon1g]

The old PTE turbos were inefficient by today's standards, and about as reliable as the US Government.

, my apologies.

I know how they work all too well.

 

[99gst_racer]

Idk if this helps, but I found it on a Nissan forum.

I found that one (and a few others) doing a Google search, but it doesn't look accurate to me. That shows the HX52 to flow way more than ayone else claims.

 

[TSimage]

I found that one (and a few others) doing a Google search, but it doesn't look accurate to me. That shows the HX52 to flow way more than ayone else claims.

Considering its size I wouldn't be surprised.. I've seen rating from 89 all the way to 96. The damn thing is similar to the HX40 in the way that regardless of its size it still spools like its one of the more modern billet turbos.

 

[JusMX141]

Apparently there are different HX52 compressors that range in airflow as well, just like there are different HX35 and HX40 compressors. You'd have to know the inducer spec before you would be able to track down an accurate compressor map I'm sure.

 

[rlacasse1]

I have some turbo book that has maps for the large holsets. Ill post it up in a bit after I get out of class. I can either take a picture of it out just post numbers. Whichever you prefer.

 

[JusMX141]

Scan 'em, take pics- get them uploaded....whatever it takes. If we have the maps that nobody else can find it will improve site traffic, look better for sponsors, etc.

 

[dsmusmc]

You can get a HX52 cheap and a brand new Borg Warner/Airwerks 91/79 (s366) for $600. Both built like a tank.

 

[doubleclutch99]

brand new Borg Warner/Airwerks 91/79 (s366) for $600. Both built like a tank.

Do you have links to that price tag? i'm interested

 

[kp116]

I have been very happy with my s366. I am running a .91 divided t4 and it is a twin scroll set up. With the auto I get about 35psi right around the 5k make maybe a little bit before it.

 

[dsmusmc]

Do you have links to that price tag? i'm interested

PMed.