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Old 10-04-2007, 12:23 PM
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Can a NA side and inter housings fit on turbo rotor housings?
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Old 10-04-2007, 01:11 PM
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yes, they will fit... unless by NA you are talking old school 13b 4-port then the coolant o-ring grooves become an issue.
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Old 10-04-2007, 01:24 PM
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Yes, they fit. What is the project?
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Old 10-04-2007, 02:00 PM
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The project is a 13bt that I'm building. I bought an engine under the impression that the internals are all turbo and the inter/side housings are NA. The engine ran carb NA for a little bit and just wondering if its just bullshit. I was told from a local guy that im friends with that the internals/rotor housings are all racing beat and new. He said i just need to rebuild it and switch out the housings. This is the only pic that i have of the engine.

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Old 10-04-2007, 04:42 PM
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need more pics to be sure, but we do have a couple of clues...



1. the car is a gxl, so it came with an NA motor



2. that center housing has an egr block off, so that is an NA part for sure
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Old 10-04-2007, 05:55 PM
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The is a 90 gxl it has full turbo2 drive train. I know this for sure i seen my tranny vs my buddys na one and its huge.
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Old 10-04-2007, 06:13 PM
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Originally Posted by iox106' post='884381' date='Oct 4 2007, 06:55 PM
The is a 90 gxl it has full turbo2 drive train. I know this for sure i seen my tranny vs my buddys na one and its huge.
It is a 90 gxl it has full turbo2 drive train. I know this for sure. Ive seen my tranny vs my buddy's NA one and its huge. Ive pulled the engine out already. How would i make sure that the rotor housings are turbo2?
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Old 10-05-2007, 12:09 PM
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If the housings are turbo 2 there will be no diffuser inside the exhaust sleeves. If it is an NA housing there will be one
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Old 10-05-2007, 01:29 PM
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Looks like an S4 NA intermediate plate. S5's don't have EGR openings. S4 water pump neck...



There's really no way to tell whats inside it until you crack the keg.
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Old 10-05-2007, 09:42 PM
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Originally Posted by iox106' post='884383' date='Oct 4 2007, 07:13 PM
It is a 90 gxl it has full turbo2 drive train. I know this for sure. Ive seen my tranny vs my buddy's NA one and its huge. Ive pulled the engine out already. How would i make sure that the rotor housings are turbo2?
Rotor housings are a small concern...

Rotor comp ratio and end plates are the things that matter.



To me it sounds like its a BS story and its really an N/A block.

But dismantling it will speak the truth.
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