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



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      12-05-2012, 03:40 PM   #1
jamier27
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JB4 winter map?

I have JB4 from juiced up and hoping it lands tomorrow.

I have no other mods at the moment so i guess map 1 is the only option.. how ever some people run map 2 with just DCI so i was wondering how safe it would be to run that with no bolt ons when the outside temps are so low??
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      12-05-2012, 05:30 PM   #2
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I wouldn't bother, what are the chances of getting traction in this weather anyway? Whilst your timing will be fine with good petrol and low intake temps, your EGTs will probably be high due to the cats still being present in the downpipes.
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      12-06-2012, 02:39 AM   #3
jamier27
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Quote:
Originally Posted by idnan View Post
I wouldn't bother, what are the chances of getting traction in this weather anyway? Whilst your timing will be fine with good petrol and low intake temps, your EGTs will probably be high due to the cats still being present in the downpipes.
Yeah fair point just curious as don't know an awful lot about the jb4 read a number of threads on here which have been posted in last 6 months.

Noticed you are pretty much fully modified with bolt ons. Epic!.

So map 1 it is then.

Or map 5? Or will that not make a difference on a stock cat
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      12-06-2012, 02:44 AM   #4
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I ran map 5 on a standard car for a while. Should be fine.

Matt
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      12-06-2012, 02:59 AM   #5
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Map 5 is your best bet.

Be careful on Icey Roads though!
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      12-06-2012, 12:26 PM   #6
jamier27
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thanks all

it arrived this morning, a few bent pins but am sure they will straighten out fine..

dont know when i will get time to fit in this god awful weather!
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      12-07-2012, 07:34 AM   #7
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Be careful with the upper and lower filter housing at the base of the windscreen - they break easily!
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      12-07-2012, 12:30 PM   #8
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Thanks for that tip, I can be a bit heavy handed so that info is very useful
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