cold start

1MOREMOD · 07-26-2011, 09:44 AM

interested in what is the advantage or disadvantage of keeping or removing the cold start procedure with a tune? i dont have primary cats so dont need them heated up but does the cold start serve to warm the car up quicker. also it sounds kind of cool. just curious if i should have evolve remove this or leave as is. any thoughts?

J08M3 · 07-26-2011, 10:33 AM

I think it sounds cool

1MOREMOD · 07-26-2011, 12:10 PM

yes i know that part but is there any advantage to having or removing it?

J08M3 · 07-26-2011, 12:34 PM

Not really.... burn a touch less fuel for a few seconds.

Singletrack · 07-26-2011, 01:50 PM

Quote:

Originally Posted by J08M3

I think it sounds cool

Concur.

Singletrack · 07-26-2011, 01:52 PM

Quote:

Originally Posted by chriszeh

yes i know that part but is there any advantage to having or removing it?

My understanding is that it is to heat the cats up faster to help decrease emissions during initial driving.

P@Evolve · 07-26-2011, 02:43 PM

Exactly as singletrack says and as we talked about on the phone Chris, primarily there to heat up the cats for emissions reasons. If you like a loud startup leave it in, if you'd prefer a quiter exit from home, we can remove it

geneatals · 07-26-2011, 07:01 PM

hmm..wonder how much it would be to just get the cold start up deleted....I'm not interested in an ecu tune, just the cold start delete...

wonder how much longer it would take the cats to heat up if/when "cold start" is "deleted"..

J08M3 · 07-26-2011, 07:39 PM

Quote:

Originally Posted by geneatals

hmm..wonder how much it would be to just get the cold start up deleted....I'm not interested in an ecu tune, just the cold start delete...

wonder how much longer it would take the cats to heat up if/when "cold start" is "deleted"..

If you're gonna start messing with your ECU you might as well tune for power since your warranty is already at risk

persian54 · 07-26-2011, 09:27 PM

if you have stock cats you should keep the procedure

geneatals · 07-26-2011, 09:34 PM

Quote:

Originally Posted by persian54

if you have stock cats you should keep the procedure

why?

1MOREMOD · 08-12-2011, 06:37 PM

i decided to keep the cold start without my cats as i like the sound on startup being a little more raw!

CCLSVTM3 · 08-15-2011, 02:40 PM

I got the cold start removed when I got my ESS tune. Doesnt do a thing but starts smoother and sounds better when cold... I like not having it...

1MOREMOD · 08-15-2011, 03:27 PM

yep everybody like different things. i want it to sound a little crazy on start up let people know its not just any m3.

persian54 · 08-15-2011, 04:34 PM

Quote:

Originally Posted by geneatals

why?

so your cats warm up

If you're stock, I see no need to change something BMW designed to be there

geneatals · 08-15-2011, 05:03 PM

Quote:

Originally Posted by persian54

so your cats warm up

If you're stock, I see no need to change something BMW designed to be there

right, but your cats will warm up eventually won't they...

we all change things bmw designed to be there...come on...

1MOREMOD · 08-15-2011, 05:05 PM

its just for emission control warming up the cats helps them work properly more quickly so less hydrocarbons relseased. plus it sounds cool.

abehwang · 08-15-2011, 05:18 PM

Its also to get your fluids moving (changing viscosity as it warms up)
and other things into operating motion

Like all metals, it expands and contracts depending on temperature

prubin · 11-28-2011, 08:32 PM

I had Paul and Evolve remove the cold start on my tune over the past weekend, and the difference is remarkable. Not only is it much quieter on startup, it's smoother idling and the DCT even seems to shift more appropriately. Before the tune, DCT cold shifting was rough, and it almost seemed like it couldn't quite decide upon the correct gear. Now with the cold start delete, both shifting and idle are smooth and refined, just as it should be on this fabulous car.

Raptor251 · 11-28-2011, 09:51 PM

I wish the Dinan tune had the delete. I'm scared to start my car before 8am, my neighbors can hardly take it!

GOLFFRR · 11-28-2011, 10:13 PM

^^same with me. I just they to get out and on the road as fast as possible (i leave at 630am) they love me I'm sure. I have been thinking about doing this on my next go around as well.

Jbook · 11-29-2011, 03:41 PM

I liked that extra bit of growl when I started my car, but don't miss it now that it's gone... and I'm sure my neighbors don't either haha.

07-26-2011, 09:44 AM	#1
1MOREMOD Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,497 iTrader: (3)	cold start interested in what is the advantage or disadvantage of keeping or removing the cold start procedure with a tune? i dont have primary cats so dont need them heated up but does the cold start serve to warm the car up quicker. also it sounds kind of cool. just curious if i should have evolve remove this or leave as is. any thoughts? __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\|
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07-26-2011, 10:33 AM	#2
J08M3 Major General Drives: 2011 M3 COUPE Join Date: May 2008 Location: NEW YORK Posts: 6,015 iTrader: (8)	I think it sounds cool __________________

07-26-2011, 12:10 PM	#3
1MOREMOD Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,497 iTrader: (3)	yes i know that part but is there any advantage to having or removing it? __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\|

07-26-2011, 12:34 PM	#4
J08M3 Major General Drives: 2011 M3 COUPE Join Date: May 2008 Location: NEW YORK Posts: 6,015 iTrader: (8)	Not really.... burn a touch less fuel for a few seconds. __________________

07-26-2011, 07:01 PM	#8
geneatals Ninja Drives: 2011.5 E90 M3 Join Date: Dec 2007 Location: So Cal (SFV) Posts: 2,946 iTrader: (2)	hmm..wonder how much it would be to just get the cold start up deleted....I'm not interested in an ecu tune, just the cold start delete... wonder how much longer it would take the cats to heat up if/when "cold start" is "deleted".. __________________ 2011.5 E90 M3 AW l Black Novillo Leather \| Carbon Fiber Leather Trim \| ZCP \| ZP2 \| M-DCT \| Navigation \| Moonroof \| 6FL l Pics/Mods Retired: 2008 535i l AW l Black Dakota Leather l Bamboo Anthracite l ZPP l ZSP l 6FL

07-26-2011, 02:43 PM	#7
P@Evolve BimmerPost Supporting Vendor Drives: Quick enough Join Date: Apr 2011 Location: US Posts: 359 iTrader: (1)	Exactly as singletrack says and as we talked about on the phone Chris, primarily there to heat up the cats for emissions reasons. If you like a loud startup leave it in, if you'd prefer a quiter exit from home, we can remove it

07-26-2011, 09:27 PM	#10
persian54 Lieutenant General Drives: MW E93 M3/E89 Z4 35i Join Date: Jun 2009 Location: The Valley, SoCal Posts: 15,351 iTrader: (258)	if you have stock cats you should keep the procedure __________________ Next track day: http://www.m3post.com/forums/showthread.php?t=651089 Sorry I'm just someone who comes on here to fill a void..I dont have the $ to own a BMW. This is a nice E93:http://www.e90post.com/forums/showthread.php?t=434032

08-12-2011, 06:37 PM	#12
1MOREMOD Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,497 iTrader: (3)	i decided to keep the cold start without my cats as i like the sound on startup being a little more raw! __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\|

08-15-2011, 02:40 PM	#13
CCLSVTM3 Lieutenant Drives: Interlagos blue E90 M3 Join Date: Jul 2011 Location: Burbank, CA Posts: 528 iTrader: (1)	I got the cold start removed when I got my ESS tune. Doesnt do a thing but starts smoother and sounds better when cold... I like not having it... __________________ BMC filter, OEM Exh Mod, ESS Direct Flash tune, flat black kidney grills, color painted front reflectors, LUX Angel eyes, -2012 SVT Raptor 4 dr -09 E90 M3

08-15-2011, 03:27 PM	#14
1MOREMOD Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,497 iTrader: (3)	yep everybody like different things. i want it to sound a little crazy on start up let people know its not just any m3. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\|

08-15-2011, 05:05 PM	#17
1MOREMOD Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,497 iTrader: (3)	its just for emission control warming up the cats helps them work properly more quickly so less hydrocarbons relseased. plus it sounds cool. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\|

08-15-2011, 05:18 PM	#18
abehwang Captain Drives: e90 m3 Join Date: Mar 2011 Location: US Posts: 418 iTrader: (0)	Its also to get your fluids moving (changing viscosity as it warms up) and other things into operating motion Like all metals, it expands and contracts depending on temperature

11-28-2011, 08:32 PM	#19
prubin Enlisted Member Drives: 2011 M3 E92 Join Date: Jun 2011 Location: Colorado Posts: 33 iTrader: (0)	I had Paul and Evolve remove the cold start on my tune over the past weekend, and the difference is remarkable. Not only is it much quieter on startup, it's smoother idling and the DCT even seems to shift more appropriately. Before the tune, DCT cold shifting was rough, and it almost seemed like it couldn't quite decide upon the correct gear. Now with the cold start delete, both shifting and idle are smooth and refined, just as it should be on this fabulous car.

11-28-2011, 09:51 PM	#20
Raptor251 ESS Dreaming Drives: 2011.5 e92 m3/Ford Raptor 6.2 Join Date: Jan 2011 Location: San Diego Posts: 871 iTrader: (1)	I wish the Dinan tune had the delete. I'm scared to start my car before 8am, my neighbors can hardly take it!

11-28-2011, 10:13 PM	#21
GOLFFRR BimmerPost Supporting Vendor Drives: Golf Cart Join Date: Mar 2009 Location: Solvang, CA/Camarillo, CA Posts: 10,932 iTrader: (4)	^^same with me. I just they to get out and on the road as fast as possible (i leave at 630am) they love me I'm sure. I have been thinking about doing this on my next go around as well. __________________ BEFORE YOU BUY YOUR NEXT BMW, PM ME FIRST I CAN HOOK YOU UP! We are Performance Center\|Euro Delivery\|BMW Individual Specialist Need a quote?..Ryan /Checa Email link \| T.805.482.8878 ask for Francesca www.stevethomasbmw.com \| OUR PARTS STORE \| Facebook-STBMW \| Twitter-STBMW

11-29-2011, 03:41 PM	#22
Jbook Captain Drives: '11 ESS E90 M3 Join Date: Sep 2010 Location: San Jose - Bay Area Posts: 783 iTrader: (15) Garage List 2011 BMW E90 M3 [5.00]	I liked that extra bit of growl when I started my car, but don't miss it now that it's gone... and I'm sure my neighbors don't either haha. __________________ ESS VT2-625 w/ Stack Gauges \| Dinan Stg 2 Suspension, CF Strut Braces, & Pedals \| Akrapovic Exhaust \| Active Autowerke X-Pipe w/ HFC \| Vorsteiner VS-400 Wheels, CF Lip, CF Type II Diffuser, & White Piped Floormats \| BMW Performance CF Spoiler, CF Mirror Covers w/ M5 paint scheme, & Performance Steering Wheel w/ Custom White Stripe \| Apex Arc-8 track wheels

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