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Do I need a retune??

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Old Mar 13, 2012 | 06:17 PM
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Do I need a retune??

Hey guys I think I already know the answer to this but I'm still going to ask. My stock 9.8 turbo blew up last night and I found a replacement 8 that is a 10.5 hotside do I need to retune my car? With the bigger hotside
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Old Mar 13, 2012 | 09:29 PM
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I promise this will be my last stupid question on here can someone chime in??
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Old Mar 14, 2012 | 04:54 AM
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In most cases it's worth logging the car and checking he AFR's. Depends on howit was tuned last time.
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Old Mar 15, 2012 | 07:22 PM
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We can guess that the answer is YES but Only logs will tell...
Cheers
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Old Mar 16, 2012 | 09:52 AM
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the turbo i bought had a cracked 10.5 hotside they forgot to mention that so i used the original 9.8 and the 10.5 compressor and chra so i should be ok without a tune afrs were good i used same boost setting and wastegate.
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