Does this dyno look normal?

nick85 · 08-22-2015, 04:25 AM

Hi all. Just wanted to know if this looks normal? the power seems to drop off after 145km/hr.

Car has downpipes, FMIC and jb4 map5 and box intake.

Any feedback would be nice - during the dynos the power did cut a couple of times, not sure what the issue could be...

Feedback would be appreciated!

vtl · 08-22-2015, 05:00 AM

Good power mate, I got 240kw today at a dyno day with similar mods. Looks normal to me? The stock turbos are small and lose their lungs at high rpms.

Btw your image is borked, I had to inspect element to get the link out of it

Here is a link to a bunch of dynos for comparison
http://www.e90post.com/forums/showth...1144153&page=4

martymil · 08-22-2015, 01:14 PM

The stock turbos tamper off like that

Without a jb4 log we cant really see what is going on.

You should be making around 257rwk which sounds about right

Where you running bp ultimate ?

When running map 5 you have to do at least 4 WOT runs on the dyno for the map to adjust itself to any new changes.

How old are your spark plugs and coils ?

martymil · 08-22-2015, 01:20 PM

The power cutting on the dyno is normal, it does that sometimes.

Unless your switching back to map 4 everything looks ok

map 2 will make more power but far less torque

Stick to map 5 its quicker in real life unless you want to be a dyno junkie lol.

nick85 · 08-22-2015, 05:13 PM

Thanks for the reply, yep I was running bp ultimate.

This was done at advan. the power cuts at high RPMs when its under high pressure.

Could the HPFP be failing? They told me it wasn't normal.

BMWhoarder · 08-22-2015, 06:54 PM

If you didnt log the jb4 whilst on the dyno, you've wasted your time.

Making guesses as to what could be happening is like trying to piss in the dark...

martymil · 08-22-2015, 07:38 PM

Without a log its impossible to tell what went wrong, you need to log.

How does it feel on the road ?

Does it switch back to map 4 or safety map they call it ?

How many Kms on your car how old are your sparkplugs ?

Get yourself a cable from stu at bmr autowerekes and a laptop and start logging.

08-22-2015, 04:25 AM	#1
nick85 Private First Class 10 Rep 103 Posts Drives: BMW M2 Join Date: Dec 2014 Location: Sydney iTrader: (0)	Does this dyno look normal? Hi all. Just wanted to know if this looks normal? the power seems to drop off after 145km/hr. Car has downpipes, FMIC and jb4 map5 and box intake. Any feedback would be nice - during the dynos the power did cut a couple of times, not sure what the issue could be... Feedback would be appreciated!
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08-22-2015, 05:00 AM	#2
vtl Brigadier General 1493 Rep 3,148 Posts Drives: 2008 BMW 135i MT Join Date: Apr 2015 Location: Melbourne, Australia iTrader: (0)	Good power mate, I got 240kw today at a dyno day with similar mods. Looks normal to me? The stock turbos are small and lose their lungs at high rpms. Btw your image is borked, I had to inspect element to get the link out of it Here is a link to a bunch of dynos for comparison http://www.e90post.com/forums/showth...1144153&page=4 __________________ Build Thread
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08-22-2015, 01:14 PM	#3
martymil Banned 389 Rep 2,186 Posts Drives: Garage is to big to list. Join Date: Jun 2013 Location: Sydney iTrader: (8)	The stock turbos tamper off like that Without a jb4 log we cant really see what is going on. You should be making around 257rwk which sounds about right Where you running bp ultimate ? When running map 5 you have to do at least 4 WOT runs on the dyno for the map to adjust itself to any new changes. How old are your spark plugs and coils ?
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08-22-2015, 01:20 PM	#4
martymil Banned 389 Rep 2,186 Posts Drives: Garage is to big to list. Join Date: Jun 2013 Location: Sydney iTrader: (8)	The power cutting on the dyno is normal, it does that sometimes. Unless your switching back to map 4 everything looks ok map 2 will make more power but far less torque Stick to map 5 its quicker in real life unless you want to be a dyno junkie lol.
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08-22-2015, 05:13 PM	#5
nick85 Private First Class 10 Rep 103 Posts Drives: BMW M2 Join Date: Dec 2014 Location: Sydney iTrader: (0)	Thanks for the reply, yep I was running bp ultimate. This was done at advan. the power cuts at high RPMs when its under high pressure. Could the HPFP be failing? They told me it wasn't normal.
	Appreciate 0 Quote

08-22-2015, 06:54 PM	#6
BMWhoarder Resisting mods 48 Rep 279 Posts Drives: 135i Join Date: Apr 2014 Location: Canberra iTrader: (1)	If you didnt log the jb4 whilst on the dyno, you've wasted your time. Making guesses as to what could be happening is like trying to piss in the dark...
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08-22-2015, 07:38 PM	#7
martymil Banned 389 Rep 2,186 Posts Drives: Garage is to big to list. Join Date: Jun 2013 Location: Sydney iTrader: (8)	Without a log its impossible to tell what went wrong, you need to log. How does it feel on the road ? Does it switch back to map 4 or safety map they call it ? How many Kms on your car how old are your sparkplugs ? Get yourself a cable from stu at bmr autowerekes and a laptop and start logging.
	Appreciate 0 Quote