Click here to see all the maps on one big page (beware, almost 6 megabytes of images).
Garrett IHI KKK Mitsubishi
Autorotor Eaton Lysholm Vortech
Big thanks to
Here is a very interesting document from Garrett, including some information on interpreting turbine maps.
Thanks to Rick Chwiendacz, who found some rare hard-copy T25 maps in very rough condition, which he then hand traced for us. George from Greece then sent me the -55 and -60 trim maps that he squeezed from someone there.
Garrett has seen fit to bless us with both compressor and turbine maps for the GT series. C links to the compressor flow map; T to the turbine flow map. Here is a table of info on the GT series.
|GT12 C T||GT15 C T||GT20 C T||GT22 C T||GT25R C T|
|GT25R-40 C||GT28R C T||GT28RS C T||GT30R C T||GT30R-71 C T|
|GT32 C T||GT35 C T||GT35R C T||GT37 C T||GT40-50/54 C T|
|GT40-56 C||GT40R C||GT42 C T||GT60 C T|
Quiz sent me an ATP brochure with the GT30R maps, and a pair of dyno runs from them comparing it with a T4-60/T3 (beware that this is what we would call an "uncontrolled document" at work, having no idea what the specifics were for each run). The GT comes on a little earlier, and then proceeds to build a lot higher. Still in pdf format for now.GT30R: Maps Dyno runs
IHI = Ishikawajima-Harima Heavy Industries.
IHI documentation is pretty crude, just outlines of the operating region without any efficiency curves.
|Maps and Specs|
Some comments from Paul Dykstra on used IHI turbos:
If you are junkyard shopping, look on the turbine inlet on the bearing housing side for a cast-in "R5". This indicates the the turbine housing is made from high nickel, high temperature material (D5-Niresist). Also cast into the same area is a P#, this is the A/R in mm2/mm. It can be converted and compared to other turbines, which are more typically in2/in. [efahl: Just divide it by 25.4 to get the "real" A/R, for example, if you see 19 it's what Garrett would call a 0.75 A/R housing.]
Roger Enns got these two maps from an engineer at Warner-Ishi.
KKK was purchased by Borg-Warner and is now 3K-Warner.
Many of these maps are in m^3/s at 20C, which by my calculations becomes lb/min with a conversion factor of 162.04 (e.g., 0.25 m^3/s * 162.04 = 40.51 lb/min).
Thanks to the many people who sent me specific applications and part numbers listed in the table below. If you have more info or corrections, e-mail me.
|VAG 1.8t 150 HP||K03-053 or -058|
|VAG 1.8t 180 HP||K03-026 or -035 or -042 (aka Sport)|
|VAG 1.8t 225 HP||K04-023|
|Audi 5000 early||K26|
|Audi 5000 late||K24|
|Audi S4 2.7tt||K03|
|Audi RS4 2.7tt||K04-025/026|
|Porsche 993TT S||K24-7003/7004|
See the conversion factor given with the KKK maps above to convert the flow axis on this maps.
|TD05-16G small wheel||TD05-16G large wheel|
|M45||Flow||Power consumption||Delta T|
|M62||Flow||Power consumption||Delta T|
|M90||Flow||Power consumption||Delta T|
|M112||Flow||Power consumption||Delta T|
Whipple-branded, Lysholm-design, twin-screw superchargers (manufactured by Eaton?).
And a single Vortech map showing the S- and T-trim centrifugal superchargers.
|A-Trim Flow||S-Trim Flow||S-Trim V2 Flow||S- vs. T-trim Flow||YS-Trim Flow|