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      07-10-2014, 04:20 PM   #10
135Pats
Saving for a big ass turbo or an A3...IDK which.
 
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Drives: 135i
Join Date: May 2012
Location: Maryland

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Quote:
Originally Posted by Shooto82 View Post
I'm referring to the stock frame 2 turbos on the n54. Why moving to single turbo and not upgrading those 2 turbos ?
You can certainly retain a twin turbo setup, ultimately that will probably be ideal for spool purposes. The tuning can also get a bit screwy when you merge the two exhaust banks into one for a single conversion, o2 sensor placement becomes tricky and i'm still not quite convinced that there isn't some funky long-term trim behavior as a result. Everything needs to move pre-turbo where the exhaust gasses are still split.

Twin GTX35s
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