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TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old January 13th, 2020, 06:28   #1
eddie_1
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Default Put VNT22 housing on GT1749VB?

I was looking to replace the 17/22 I brought from the US with a GT1749VB but the old 17/22 compressor housing is VNT22 like on VW T4, so my existing custom hoses don't match up. Would it be ok to just put the VNT22 compressor housing on a new GT1749VB or is it a problem that it is bigger? Thanks in adavance!
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Old January 13th, 2020, 09:55   #2
flee
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It isn't just the housing as you would need to change the impeller as well, right?
In which case you won't be able to balance the rotating assembly on your own.
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Old January 15th, 2020, 03:56   #3
majesty78
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Needs compressor wheel, backplate and housing plus balancing and calibrating VNT setting afterwards.
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Old January 15th, 2020, 04:20   #4
eddie_1
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Thanks for the feedback guys. Sounds like the compressor wheel needs to match the housing for things to work properly.
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