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Old 10-08-2003, 08:17 AM   #1 (permalink)
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Pictures of my XS Engineering 500 hp turbo

I had my XS500 turbo off the STi this weekend, to clock it a little bit so it would clear the throttle connector a little better. I took a bunch of pictures and tried to make an estimate of the turbine nozzle area. Here they are. This turbo is basicly a GT3037-10 garrett, in a bolt on configuration with a custom cast turbine housing. It is also the exact same thing as an AVO500, and is made by avo.

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This is vs. a stock wrx TD04:
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Old 10-08-2003, 08:26 AM   #2 (permalink)
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Old 10-08-2003, 08:27 AM   #3 (permalink)
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More bigger....
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Old 10-08-2003, 08:30 AM   #4 (permalink)
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much more biggerest !!!!
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Old 10-08-2003, 08:30 AM   #5 (permalink)
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Here's a couple measurement's of the compressor cover inlet. It is a T04E cover machined down to a 60mm OD inlet, from 2.75". The ID measures about 53mm, I couldn't get all the way in there with my dinky calipers. Notice the dual bladed garrett GT compressor wheel.
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Old 10-08-2003, 08:34 AM   #6 (permalink)
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Old 10-08-2003, 08:41 AM   #7 (permalink)
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Old 10-08-2003, 08:47 AM   #8 (permalink)
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Pretty big eh?

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Old 10-08-2003, 08:49 AM   #9 (permalink)
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Here's a pic of the turbine inlet.
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Old 10-08-2003, 08:51 AM   #10 (permalink)
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Here's a pic of a peice of paper I cut to fit the nozzle area. the Wastegate is right on the nozzle, and the paper extends into the wastehole a little bit, but it's not much at all.
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Old 10-08-2003, 08:53 AM   #11 (permalink)
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Here's that peice of paper compared to a paper circle 3.2 mm in diameter, or 8 cm^2, the size of a large mitsu housing. Seemingly this turbo has a nozzle area in the range of 9-10 cm^2. That is very large.
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Old 10-08-2003, 08:59 AM   #12 (permalink)
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Here's a dyno plot of my car running the turbo, at low boost, on the stock ecu and fuel, catless turboback and AVO inake pipe, Joe P MBC. Notice how it makes full power all the way to redline? With all the supporting mods, this turbo can support about 22 psi of boost at redline on the 2.5.
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Old 10-08-2003, 08:59 AM   #13 (permalink)
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And the A/F and boost.
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Old 10-08-2003, 09:02 AM   #14 (permalink)
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I've got turbo envy, good post red.
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Old 10-08-2003, 09:18 AM   #15 (permalink)
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oh, here's the turbine outlet.
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