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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Hybrid turbos + JB4?



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      12-14-2018, 11:29 AM   #1
Damo12345
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Hybrid turbos + JB4?

Hi guys, so I’ve just got hold of a pair of hybrids, the guy is on here I’m sure!

E92 335i-how does the JB4 perform with hybrid turbos should I get one, or get a remap done? Car is already remapped on standard turbos

Sorry if this questions been asked a million times before
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      12-14-2018, 12:02 PM   #2
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You would be better off asking on a JB4 forum. If you are already flash tuned I don't see why you would want/need JB4. Unless it's for a handful of features you may or may not use.

Most people here will suggest a custom flash only MHD tune. I recommend Motiv as a tuner and I am happy to make an introduction for you.

Which turbos did you go with?
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      12-15-2018, 02:34 AM   #3
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After fitting hybrids I’m assuming I will need a fresh map to run better with the new turbos. And wasn’t sure instead of getting another map, whether I’m better off getting JB4

RB stage 2 freshly overhauled by TD
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      12-15-2018, 09:04 AM   #4
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yes a custom map will let you get everything out of your RBs based on your fuel elevation etc. If you already have MHD just get a custom flash tune by a well known tuner. Custom maps are cheap.
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      12-16-2018, 11:04 AM   #5
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Pretty sure it’s just been remapped I don’t have a jb4 I was just wondering wether or not jb4 would work well with the hybrids
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      12-16-2018, 01:47 PM   #6
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If your going to put hybrids on it you're ideally going to need to carry out a lot of other mods to make hybrid tubs worthwhile, I would have thought you'd at least need;
Up rated intercooler
Charge pipe & DV's
Air filter, DCI or a proper cold air intake.
Up rated fuel pump
Stage 3 remap
With all that extra power your going to need to uprate the brakes & suspension. My 35i had 370bhp before the new stock turbos & VRSF charge pipe & that was fine but now I find myself fighting the back more often & having to wait longer before a can apply all the pedal. Yes it's fun but I wouldn't want any more unless I'd done some suspension work.
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