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      02-19-2020, 05:34 PM   #32
David.m
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Drives: M2 LCI 6MT BSM
Join Date: Aug 2016
Location: Australia

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Quote:
Originally Posted by Nezil View Post
Is that really a software thing? I thought it was because the diverter valve dumps the boost as soon as you let off, which is necessary for shifting, and that then requires boost to re-build once you're WOT again.

I can't explain the 6K+ shift thing, because that is definitely a partial solution.

If it truly is a software thing, I'm surprise that tuners haven't solved this issue. I'll be completely honest about this... it's absolutely the worst thing about this car. I absolutely hate the lag when up shifting... If a software fix was all that was necessary, I'd pay good money to have it!
Confess the software explanation is only what I've read elsewhere in the forum and where I learnt of the 6K+ shifting which does work. As you say it's very frustrating especially in situations when you would like to shift earlier. I think I've read the same issue affects the M2C?
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