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Holset Info...

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crxvtec91:
Anyone have more links related to Holsets?

92CXyD:
yeah

TurboByHolset.com

Some good info. in there

Some VTN type Holset info in Talkturbo.com you may have to look around.

Usually its Areo or SiFlyBy from here posting some good good info. in the  Variable Geometry Turbo Topics  section.

92CXyD:
Just got this link today:

http://www.caboturbo.com/webpages/uk/cabohxrangedetails.jpg

http://www.caboturbo.com/

Good info.

d112crzy:
Some more info I thought should be posted here, instead of having to go to links.

holset turbine size converted to a/r. Not 100%, but close enough.

6cm2 = 0.41 A/R
7cm2 = 0.49 A/R
8cm2 = 0.57 A/R
9cm2 = 0.65 A/R
10cm2 = 0.73 A/R
11cm2 = 0.81 A/R
12cm2 = 0.89 A/R
14cm2 = 0.97 A R
15cm2 = 1.05 A/R
16cm2 = 1.13 A/R
17cm2 = 1.29 A/R
19cm2 = 1.37 A/R

Joseph Davis:

--- Quote from: d112crzy on December 08, 2009, 10:21:32 PM ---Some more info I thought should be posted here, instead of having to go to links.

holset turbine size converted to a/r. Not 100%, but close enough.

6cm2 = 0.41 A/R
7cm2 = 0.49 A/R
8cm2 = 0.57 A/R
9cm2 = 0.65 A/R
10cm2 = 0.73 A/R
11cm2 = 0.81 A/R
12cm2 = 0.89 A/R
14cm2 = 0.97 A R
15cm2 = 1.05 A/R
16cm2 = 1.13 A/R
17cm2 = 1.29 A/R
19cm2 = 1.37 A/R

--- End quote ---

Yeah, but on what turbine wheel?  With identical A/R housings, the "nozzle" size expressed in cm^2 for a T25 turbine and for a P-trim turbine is going to be waaaaay different.

Directly measuring nozzle size is about the only thing MHI did better than Garrett.

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