Aftermarket Turbo Flow Rates - Informational List

[PapaSmurf]

Pretty sure we dont have one of these on our forums, since people are going bigger and bigger on a daily basis I think it would be nice for people to know were their turbo stands/flows etc.

Their is obviously some turbos we use here that are missing if anyone has the numbers for them.

Stock K04..........?
BNR S3 K04.............?
GTX2867R.........?

etc etc

Maybe a sticky somewhere? @Raider; @doubleflusher;



Holset HX27...............38lb/min
TD05 16G..................38lb/min
E9 71........................41lb/min
TT S204....................42lb/min
E9 80.......................44lb/min
Borg EFR 6258..........44lb/min
TT S209....................45lb/min
GT2871R...................45lb/min
FP White...................47lb/min
FP Green Gen 1..........47lb/min
BBK Lite....................47lb/min
Tomei ARMS..............48lb/min
Holset H1C................49lb/min
GT3071R...................50lb/min
PT 5341 CEA...............50lbs/min
BBK Full....................51lb/min
GTII HKS 7460R..........51lb/min
Blouch D2..................52 lbs/min
Holset H1E...................52-65lb/min depending on the version
Holset HX35 8 blade......52lb/min
Borg EFR 6758.............53lb/min
TT S205....................53lb/min
TT S214....................53lb/min
Holset HX30................54lb/min
FP Green 73HTA..........54lb/min
GT3076R...................54lb/min
Evo-760XTR...............55lb/min
Borg EFR 7064...........56lb/min
GTX3071R.................56lb/min
TT S205b..................56lb/min
TT S214b..................56lb/min
Holset HY35...............57lb/min
BBK-B.......................57lb/min
PT 5857....................57lb/min
FP HTA 3076..............59lb/min
FP HTA 3576..............59lb/min
Holset Hx35/40 Hybrid...60lb/min
Holset WH1E................60lb/min
Holset HX35 7 blade.....60lb/min
Holset HY35/HE341......60lb/min
Holset WH1C .............60lb/min
FP Red HTA................60lb/min
Borg EFR 7163..........60lb/min
Borg EFR 7670............64lb/min
GTX3076R.................65lb/min
GTX3576R.................65lb/min
GT3582R...................67lb/min
Holset HE351cw..........67lb/min
FP Black 82HTA..........68lb/min
Borg 300sx 8375........ 68lb/min
FP HTA 3582.............68lb/min
Holset Super 40..........70lb/min
GT4088R...................72lb/min
GTX3582R.................73lb/min
PT 6262....................74lb/min
GT3788R...................75lb/min
FP HTA 3586.............75lb/min
FP HTA 3786.............75lb/min
TO4Z.......................75lb/min
GT4067R...................75lb/min
Borg 300sx 8875.........75lb/min
Borg EFR 8374............79lb/min
FP HTA 3788..............80lb/min
Holset HX50 ...............80lb/min
Holset HE451.............80lb/min
GT4094R...................80lb/min
Borg S366R................80lb/min
GT4294R...................85lb/min
Holset HX52 Cast........89lb/min
Holset HY55...............89lb/min
FP HTA 3794.............90lb/min
PT6466 CEA...............90lb/min
PT6766 CEA...............93lb/min
Borg EFR 9180............94lb/min
GT4202R...................95lb/min
FP4294 HTA JB..........95lb/min
FP SUPER94 HTA.........95lb/min
Holset HX52 Billet.........99lb/min
FP SUPER99 HTA.........103lb/min
FP4205 HTA JB...........115lb/min
Holset HX60................126lb/min
Holset HX80/82...........199lb/min

[doubleflusher]

I added a few big FP's and corrected a few others.

[PapaSmurf]

I added what I could find on the GT2871 and GTX2867.

Anyone know where you can find K04, BNR Stage 2-3 info?

BNR website is blocked here at work and isnt iphone friendly haha.

[Mazdazilla6]

Here's EFR I don't see listed.

Borg EFR 6258..........44lb/min
Borg EFR 6758..........53lb/min
Borg EFR 7064..........56lb/min
Borg EFR 7163..........60lb/min

Also I don't flow rates on BNR's website but the s3 uses a gt28 chra and a 2871 comp wheel. And s1 uses only gt28 chra. But they have machined housings so that may bump rates up a bit.

[PapaSmurf]

Originally Posted by Mazdazilla6 Here's EFR I don't see listed. Borg EFR 6258..........44lb/min Borg EFR 6758..........53lb/min Borg EFR 7064..........56lb/min Borg EFR 7163..........60lb/min Also I don't flow rates on BNR's website but the s3 uses a gt28 chra and a 2871 comp wheel. And s1 uses only gt28 chra. But they have machined housings so that may bump rates up a bit.

updated.

thanks.

[Lex]

Where are these flow rates taken from on the map and at what temperature and pressure?

Are they taken from the edge of the last island? I took a quick peek and saw that for example the Garrett 28 frame turbos are underrated.

[PapaSmurf]

Originally Posted by Lex Where are these flow rates taken from on the map and at what temperature and pressure? Are they taken from the edge of the last island? I took a quick peek and saw that for example the Garrett 28 frame turbos are underrated.

im pretty sure its taken from the turbo being in its max efficiency.

so yes edge of the last island/line etc on the compressor map.

[Lex]

Above, the GT2871 is rated at 38 lbs/min.



As you can see in the image above that relates to the edge of the maximum efficiency island (76%) and not as much as the turbo can ultimately flow which is around 45 lbs.

We often run these turbos well past the middle island and make power with them well past that thanks for cooling from intercoolers, WMI, and DI.

If we could only run 38 lbs worth of air from this turbo we'd only be able to get around 330-340whp (at 18-19psi on our motors) from it and that's only true if using Cali 91 octane for example. That turbo is capable of 400whp with E85 or WMI and the correct flow parts.

While some turbos in the list are rated to the very edge of operation others are rated to the centre island and that makes the comparison difficult. I would definitely consult the full map before deciding on a turbo. The EFR 6258 for example flows about as much as the GT2871 so it either has to be rated at 35 lbs (centre island) or the Garrett has to be rated at 45 in the list. With our cars and half decent fuel and cooling we can definitely operated outside that centre island.

[PapaSmurf]

I took the ratings off different maps for the 2871, I can make the changes.

This is basically a list to compare the max flow rate of a turbo without any aftermarket cooling and on pump gas etc. Everything is going to be different from car to car and engine to engine etc.

Its just giving everyone a basic flow rate to go off of and see how each different turbo compares to each other.

[mazda_speed_6]

No flow rate for the bnr stg 3? i would think it would flow almost as much as the gt2871r maybe a bit lower as the bnr has a almost stock size inlet and the gt2871r has a 4" inlet, some one correct me if im wrong on the inlet size of the gtx2871r.

[Lex]

Originally Posted by mazda_speed_6 No flow rate for the bnr stg 3? i would think it would flow almost as much as the gt2871r maybe a bit lower as the bnr has a almost stock size inlet and the gt2871r has a 4" inlet, some one correct me if im wrong on the inlet size of the gtx2871r.

The S3 does seem to flow a little less than a GT2871 but they are in the same ballpark.

[mazda_speed_6]

Originally Posted by Lex The S3 does seem to flow a little less than a GT2871 but they are in the same ballpark.

would the S3 flow enough for 330awhp/380awtq on 91oct? with my mod set up in my sig, i also plan on getting a cpe tmic and htp 3 inch intake when i replace my smoking ko4

[06Speed6]

I know that this is a aftermarket turbo thread and Holsets arent aftermarket, but if you want to add them in anyway here are a few:

Holset HX35 8 blade - 52lb/min
Holset HX35 7 blade - 60lb/min
Holset HY35/HE341 - 60lb/min
Holset WH1C - 60lb/min
Holset H1C - 49lb/min
Holset Hx35/40 Hybrid - 60lb/min
Holset Super 40 - 70lb/min
Holset WH1E - 60lb/min
Holset H1E - 52-65lb/min depending on the version
Holset HX52 Cast- 89lb/min
Holset HX52 Billet - 99lb/min
Holset HX50 - 80lb/min
Holset HE451 - 80lb/min
Holset HY55 - 89lb/min
Holset HX30 - 54lb/min
Holset HX27 - 38lb/min
Holset HY35 - 57lb/min
Holset HX60 - 126lb/min
Holset HX80/82 - 199lb/min
Holset HE351cw - 67lb/min

[PapaSmurf]

Originally Posted by 06Speed6 I know that this is a aftermarket turbo thread and Holsets arent aftermarket, but if you want to add them in anyway here are a few: Holset HX35 8 blade - 52lb/min Holset HX35 7 blade - 60lb/min Holset HY35/HE341 - 60lb/min Holset WH1C - 60lb/min Holset H1C - 49lb/min Holset Hx35/40 Hybrid - 60lb/min Holset Super 40 - 70lb/min Holset WH1E - 60lb/min Holset H1E - 52-65lb/min depending on the version Holset HX52 Cast- 89lb/min Holset HX52 Billet - 99lb/min Holset HX50 - 80lb/min Holset HE451 - 80lb/min Holset HY55 - 89lb/min Holset HX30 - 54lb/min Holset HX27 - 38lb/min Holset HY35 - 57lb/min Holset HX60 - 126lb/min Holset HX80/82 - 199lb/min Holset HE351cw - 67lb/min

updated, basically any turbo we use could use in the community... or any turbo at all ill throw up there.

Holset HX80/82 - 199lb/min...ummm is this a 18 wheeler turbo? haha that bitch flows!

[06Speed6]

Any Holset that is 80lb/min or more is a 18 wheeler or tractor turbo, they are huge!

hx30 is on your list twice now

[smoogs12]

Hx 82 next to an HE341(I think its comparable in size to a gt30?)...yeah..its huge

[2eatV8everyday]

Here is a listing of the above turbochargers along with additional turbochargers not listed. I found this a while back on the NASIOC forums, and have added to it slowly over time.