DMS mapped car - added FMIC & downpipes. Remap needed again?

c20let · 09-26-2013, 01:15 AM

Hi there, I bought my E91 335i with a DMS remap already done. The car made 368bhp with this.
Since I bought the car I have fitted BMS dual cone filters, VRSF downpipes and VRSF 7" intercooler.
I had the car on the rolling road yesterday after getting the downpipes and FMIC fitted, it made 394bhp.

What I wanted to know is, should I be getting the map tweaked by DMS again to suit?

I have even considered getting the jb4, this actually works out a good bit cheaper than getting the DMS map done again too. Would it just be a case of wiping the original DMS remap and installing the jb4? I don't know too much about the jb4, seems to have a lot of features though.

Finally, does anyone here run the BMS meth kit? This is another reason I was interested in possibly getting the jb4.

stevens · 09-26-2013, 01:42 AM

its probably worth checking with DMS mate but the fact your power has increased suggests you may be fine since its been able to take advantage of the better gas flow and cooler air

c20let · 09-26-2013, 01:49 AM

The guys who rolling roaded the car after the FMIC and downpipes were fitted said the fuelling etc was spot on. I also spoke to DMS last week who said the car would definately need the map adjusted.
But at £595+vat to get it re-done, it seems quite alot of money to me.

phil200tdi · 09-26-2013, 03:34 AM

Definately needs doing again to take advantage of the bolt on mods.

You can run much higher boost targets than you currently will be.. Depends how aggressive you want to be.

windymissile · 09-26-2013, 04:09 AM

You will need the map adjusting to take full advantage of the recent mods. I would guess there is about another 20bhp to be released. But.....
Just get a JB4. Much cheaper and will auto adjust for any future mods and different grades of fuel. Live datalogging. Code reading. Meth control. 2 stage boost limit for 1st + 2nd. Gear change indication. Lag + rattle fix. + loads of other features.

WM

Digitalize · 09-26-2013, 05:30 AM

The car will be running fine, just like it was before the map. But the intake temps are now lower, and the exhaust gas flows away easier, meaning more gasses can come in and out, meaning you could up the boost a little more, or make the same power but earlier etc.

zltm089 · 09-26-2013, 07:44 AM

JB4!...

Bee Pee · 09-27-2013, 04:16 PM

Downside of a remap, not futureproof wrt needs tweaking to get the best out of any subsequent bolt-ons.

+1 for piggyback [JB4 or procede] as both have auto tune mode which adapts to make the most of bolt ons

c20let · 10-11-2013, 01:00 AM

I have decided to go for the jb4.

How do I go about removing the DMS map? Do i need to? Or will this be wiped when the jb4 is installed?

phil200tdi · 10-11-2013, 02:02 AM

Speak to dms

Icekube · 10-11-2013, 06:01 AM

you wont need a remap, the engine management is more than capable of adjusting itself for the better flow and charge temperatures, hence you are already getting more power.

more flow = more air, which the engine will fix with more fuel, naturally.

the only thing a remap could do is up the boost more, now that the turbos are doing less "work", a remap could push the turbos harder to make some more power, but i would just leave it as is.

Alpina_B3_Lux · 10-11-2013, 07:10 AM

Quote:

Originally Posted by c20let

I have decided to go for the jb4.

How do I go about removing the DMS map? Do i need to? Or will this be wiped when the jb4 is installed?

The car needs to be flashed back to stock. The JB4 needs a clean slate to work, you can't stack it onto an existing remap.

Personally I would rather go with the COBB system in your case, but the JB4 is certainly a good solution as well.

Alpina_B3_Lux

phil200tdi · 10-11-2013, 07:39 AM

Quote:

Originally Posted by Alpina_B3_Lux

The car needs to be flashed back to stock. The JB4 needs a clean slate to work, you can't stack it onto an existing remap.

Personally I would rather go with the COBB system in your case, but the JB4 is certainly a good solution as well.

Alpina_B3_Lux

I believe you can stack a JB4 on any remap - just adding boost manually using map 6. I wouldnt necessarily do it myself though.

With the new OpenSource BB Flash, JB4 with Backend flash has a lot going for it. Many of the new stock turbo records are going to BMS at present and driveability has improved drastically from having the fueling/timing done by a flash.

As he's also considering Meth its a much cheaper option than the Cobb/HS4 kit.

Money no object a PTF tune with HS4 seems to be widely regarded as the best.

09-26-2013, 01:15 AM	#1
c20let Private 3 Rep 64 Posts Drives: E91 335i Join Date: Mar 2013 Location: UK iTrader: (0)	DMS mapped car - added FMIC & downpipes. Remap needed again? Hi there, I bought my E91 335i with a DMS remap already done. The car made 368bhp with this. Since I bought the car I have fitted BMS dual cone filters, VRSF downpipes and VRSF 7" intercooler. I had the car on the rolling road yesterday after getting the downpipes and FMIC fitted, it made 394bhp. What I wanted to know is, should I be getting the map tweaked by DMS again to suit? I have even considered getting the jb4, this actually works out a good bit cheaper than getting the DMS map done again too. Would it just be a case of wiping the original DMS remap and installing the jb4? I don't know too much about the jb4, seems to have a lot of features though. Finally, does anyone here run the BMS meth kit? This is another reason I was interested in possibly getting the jb4.
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09-26-2013, 01:42 AM	#2
stevens Second Lieutenant 8 Rep 219 Posts Drives: e92 M3 Join Date: Apr 2013 Location: UK iTrader: (1)	its probably worth checking with DMS mate but the fact your power has increased suggests you may be fine since its been able to take advantage of the better gas flow and cooler air
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09-26-2013, 01:49 AM	#3
c20let Private 3 Rep 64 Posts Drives: E91 335i Join Date: Mar 2013 Location: UK iTrader: (0)	The guys who rolling roaded the car after the FMIC and downpipes were fitted said the fuelling etc was spot on. I also spoke to DMS last week who said the car would definately need the map adjusted. But at £595+vat to get it re-done, it seems quite alot of money to me.
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09-26-2013, 03:34 AM	#4
phil200tdi Colonel 112 Rep 2,621 Posts Drives: 335i M Sport E90 LCI manual Join Date: Jan 2011 Location: Aylesbury iTrader: (1)	Definately needs doing again to take advantage of the bolt on mods. You can run much higher boost targets than you currently will be.. Depends how aggressive you want to be. __________________ Car: e91 330d with Viezu map Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)
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09-26-2013, 04:09 AM	#5
windymissile Major 67 Rep 1,431 Posts Drives: 335i M Sport Join Date: Apr 2013 Location: UK iTrader: (0)	You will need the map adjusting to take full advantage of the recent mods. I would guess there is about another 20bhp to be released. But..... Just get a JB4. Much cheaper and will auto adjust for any future mods and different grades of fuel. Live datalogging. Code reading. Meth control. 2 stage boost limit for 1st + 2nd. Gear change indication. Lag + rattle fix. + loads of other features. WM
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09-26-2013, 05:30 AM	#6
Digitalize Photographer 413 Rep 2,643 Posts Drives: 320D Join Date: Jun 2013 Location: UK iTrader: (0)	The car will be running fine, just like it was before the map. But the intake temps are now lower, and the exhaust gas flows away easier, meaning more gasses can come in and out, meaning you could up the boost a little more, or make the same power but earlier etc.
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09-26-2013, 07:44 AM	#7
zltm089 Banned 247 Rep 7,690 Posts Drives: 335i SE Coupe Space Grey Join Date: Nov 2008 Location: LONDON iTrader: (0) Garage List 2006 BMW 335i [10.00]	JB4!...
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09-27-2013, 04:16 PM	#8
Bee Pee Brigadier General 1788 Rep 4,529 Posts Drives: AW M2 DCT Join Date: Jun 2010 Location: SW London iTrader: (3)	Downside of a remap, not futureproof wrt needs tweaking to get the best out of any subsequent bolt-ons. +1 for piggyback [JB4 or procede] as both have auto tune mode which adapts to make the most of bolt ons
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10-11-2013, 01:00 AM	#9
c20let Private 3 Rep 64 Posts Drives: E91 335i Join Date: Mar 2013 Location: UK iTrader: (0)	I have decided to go for the jb4. How do I go about removing the DMS map? Do i need to? Or will this be wiped when the jb4 is installed?
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10-11-2013, 02:02 AM	#10
phil200tdi Colonel 112 Rep 2,621 Posts Drives: 335i M Sport E90 LCI manual Join Date: Jan 2011 Location: Aylesbury iTrader: (1)	Speak to dms __________________ Car: e91 330d with Viezu map Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)
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10-11-2013, 06:01 AM	#11
Icekube Captain 46 Rep 891 Posts Drives: E87 130i Join Date: May 2013 Location: Livingston iTrader: (3)	you wont need a remap, the engine management is more than capable of adjusting itself for the better flow and charge temperatures, hence you are already getting more power. more flow = more air, which the engine will fix with more fuel, naturally. the only thing a remap could do is up the boost more, now that the turbos are doing less "work", a remap could push the turbos harder to make some more power, but i would just leave it as is.
	Appreciate 0 Quote