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      06-14-2020, 02:36 PM   #68
VisualEcho
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Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

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2018 BMW M2  [10.00]
Quote:
Originally Posted by Poochie View Post
I mean, it doesn't cost them anything to just turn up the boost...
I've been meaning to ask you a few questions. I'm a bit old-school when it comes to turbos.

1. Do you know the stock turbo CFM?
2. What's the most popular turbo upgrade (not heavy hp, just a basic upgrade over stock).
3. What CFM does that turbo flow?

I know the turbo, like the FR, is holding the tunes back, I just don't know what part, and studying flow maps isn't my thing.

I'm looking for an answer like "stock turbo flows 400 CFM, and runs out of breath at 4800 rpm, and the most popular upgrade flows 550 CFM and corrects the high rpm hole and lengthens it."
Appreciate 0