Ever feel like your car has days where its faster than usual?

DUI Elite · 11-26-2012, 10:11 PM

Am I the only one who feels like their car is randomly fast some days, and sluggish others?

More recently I've noticed driving like an asshole, I can get more days where it drives very nice. When I'm being a conservative granny, car feels slow as shit and I feel like trading her in.

I know all too well about the transmission "learning" your driving habits, and correspondingly adjusting line pressure etc. etc.

But I'm not referring to that, more so, I mean to ask about how ones engine feels going through the gears. I feel a difference, and I'm wondering what the hell is going on.

Only mods are charcoal delete, k&n filter, and scoops. I'm wondering if a tune would make it always feel great. Its really tempting me.

///M3NACE · 11-26-2012, 10:12 PM

I been driving my car normally for the past week and punched it and i had such an adrenaline rush. I couldn't believe it.

E90Company · 11-26-2012, 10:13 PM

Yes. At least on the 335i heatsoak and ambient temps have alot to do with it, especially on the stock FMIC.

DUI Elite · 11-26-2012, 10:41 PM

Yeah I'm thinking part of it is that temperatures have dropped a lot, but would that make a big difference on an N/A car?

There are sometimes where I try to get on it, and it doesn't really move, but other times, it puts me back in my seat lol.

I should mention, I've noticed my gas mileage drop a good amount when I notice the "good days". Roughly 3-4 mpg's drop actually.

RupertPupkin · 11-26-2012, 11:01 PM

Yes OP. Mine feels different every time I get in it. I always feel like the DME is way too sensitive or way too involved and the car has different levels of power all in the same commute. Very odd and annoying.

ken1137 · 11-26-2012, 11:44 PM

My e90 has been consistent so no complaints. I have a Forge FMIC, Injen DCI, AR DPs, and GIACs Stage II.

A tune should help keep that smile on your face

. but you may need to upgrade your FMIC and DPs.

Tim M · 11-26-2012, 11:45 PM

This thread explains exactly what I felt this morning on my way to work! I hit 10-60 this morning, faster than my car ever has!

mashimarho · 11-27-2012, 12:01 AM

Everyday.

Dark_Knight_335 · 11-27-2012, 04:40 AM

Yea it seems colder in the cold, ironically.
All the creaks and clatters come out around this time too, coincidentally....

upstatedoc · 11-27-2012, 08:40 AM

gotta be the fuel.

Nr!qUe · 11-27-2012, 10:02 AM

Most noticable down here when its cold and dry. smooth idle and peppiness. When its hot and humid my car is idling at 850rpm!

BenTrovato · 11-27-2012, 10:05 AM

Hehe well obviously there's a difference on a nice fall day compared to a scorching humid day. Ever since the FMIC, I find less variation in performance days.

GOTMH8N · 11-27-2012, 10:08 AM

Mine's faster after I wax it!

JRJ1970 · 11-27-2012, 10:16 AM

Interesting observation. I totally felt like this with my 1989 E30 325iS. It seemed to have its "moods." The current E93 not so much. It's pretty much the same daily.

Envuks · 11-27-2012, 10:24 AM

Get the tune. It will never feel slow again.

DUI Elite · 11-27-2012, 10:24 AM

Quote:

Originally Posted by upstatedoc

gotta be the fuel.

thats what im thinking.

really wish I had an air/fuel gauge setup to see how its running.

Part of me doesn't mind spending a little more coin on gas to enjoy my car that much more on a daily basis, but when its not consistent, I have to ask.

and haha yes, all cars are faster when freshly cleaned

E93Blackhawk · 11-27-2012, 11:05 AM

Fuel type, brand.

Temps play a big role in it, as mentioned with stock FMIC.

Generally your mood, if your tired, and you punch it, itll wake you up lol!

amill411 · 11-27-2012, 11:10 AM

Dude if you threw a JB4 on there it would be night and day difference.

I had to take my JB4 off a couple weeks ago and it felt SOO slow. Once I popped it back in I was back to LIGHTSPEED.

AWil335i · 11-27-2012, 02:52 PM

Fuel, temp, air density, heatsoak all make a difference.

Alarbus · 11-27-2012, 09:10 PM

Oh man, getting lucky and finding a station that doesn't put ethanol in the 93 is like Christmas morning. Not only is the car more responsive, but on your next fill up you realize you got 30mpg instead of 24mpg.

ihc95 · 11-27-2012, 10:17 PM

Yes!!! Haha I've been thinking this lately. Some days the car feels a little sluggish (not slow, just sort of "taking its time"). Other days the car feels like there's a bomb under the hood. Honestly I think it comes down to it being all in our heads and what kind of shoes we're wearing. For example driving the car with sneakers will feel slower than driving it with work boots. Extra weight of the boots tend to help push the gas a bit more.

captainaudio · 11-27-2012, 10:47 PM

I have always felt that cars run better when they are clean.

CA

11-26-2012, 10:11 PM	#1
DUI Elite ///M at Heart 90 Rep 1,954 Posts Drives: 06 SGM E90, 15 BSM E84 Join Date: Jan 2011 Location: Chicago, IL iTrader: (4)	Ever feel like your car has days where its faster than usual? Am I the only one who feels like their car is randomly fast some days, and sluggish others? More recently I've noticed driving like an asshole, I can get more days where it drives very nice. When I'm being a conservative granny, car feels slow as shit and I feel like trading her in. I know all too well about the transmission "learning" your driving habits, and correspondingly adjusting line pressure etc. etc. But I'm not referring to that, more so, I mean to ask about how ones engine feels going through the gears. I feel a difference, and I'm wondering what the hell is going on. Only mods are charcoal delete, k&n filter, and scoops. I'm wondering if a tune would make it always feel great. Its really tempting me.
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11-26-2012, 10:12 PM	#2
///M3NACE Banned 168 Rep 3,900 Posts Drives: E36 M3, E36 Vert , E90 N52 Join Date: Oct 2006 Location: Downers Grove, IL iTrader: (5)	I been driving my car normally for the past week and punched it and i had such an adrenaline rush. I couldn't believe it.
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11-26-2012, 10:13 PM	#3
E90Company Major General 194 Rep 6,136 Posts Drives: Car Join Date: Mar 2012 Location: FL iTrader: (2)	Yes. At least on the 335i heatsoak and ambient temps have alot to do with it, especially on the stock FMIC.
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11-26-2012, 10:41 PM	#4
DUI Elite ///M at Heart 90 Rep 1,954 Posts Drives: 06 SGM E90, 15 BSM E84 Join Date: Jan 2011 Location: Chicago, IL iTrader: (4)	Yeah I'm thinking part of it is that temperatures have dropped a lot, but would that make a big difference on an N/A car? There are sometimes where I try to get on it, and it doesn't really move, but other times, it puts me back in my seat lol. I should mention, I've noticed my gas mileage drop a good amount when I notice the "good days". Roughly 3-4 mpg's drop actually.
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11-26-2012, 11:01 PM	#5
RupertPupkin Major 91 Rep 1,456 Posts Drives: Freak Beast Join Date: Aug 2011 Location: East iTrader: (5)	Yes OP. Mine feels different every time I get in it. I always feel like the DME is way too sensitive or way too involved and the car has different levels of power all in the same commute. Very odd and annoying.
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11-26-2012, 11:44 PM	#6
ken1137 Brigadier General 89 Rep 3,732 Posts Drives: BMW S1000XR Join Date: Jun 2011 Location: Gilbert, AZ iTrader: (7) Garage List 2009 e90 335i [6.40]	My e90 has been consistent so no complaints. I have a Forge FMIC, Injen DCI, AR DPs, and GIACs Stage II. A tune should help keep that smile on your face . but you may need to upgrade your FMIC and DPs. __________________ BMWCCA member
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11-26-2012, 11:45 PM	#7
Tim M Just a regular guy. 60 Rep 514 Posts Drives: Alpine White M3 Sedan Join Date: Feb 2011 Location: CA iTrader: (2)	This thread explains exactly what I felt this morning on my way to work! I hit 10-60 this morning, faster than my car ever has!
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11-27-2012, 12:01 AM	#8
mashimarho BimmerPost Supporting Vendor 2104 Rep 13,875 Posts Drives: E92 M3 & F80 M3 & G82 M4 Join Date: Mar 2010 Location: Lynnwood, WA iTrader: (45) Garage List 2021 BMW G82 M4 [0.00] 2011 BMW E92 M3 [0.00] 2015 BMW F80 M3 [0.00] 2012 BMW 335i xDrive [9.78]	Everyday. __________________ Mashimarho.com /// Instagram /// Facebook /// Youtube /// sales@mashimarho.com /// (425) 582-7939
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11-27-2012, 04:40 AM	#9
Dark_Knight_335 Came to the N55 Darkside 1110 Rep 12,740 Posts Drives: 2011 335 E93 M-Sport Join Date: May 2010 Location: NY/NJ iTrader: (28)	Yea it seems colder in the cold, ironically. All the creaks and clatters come out around this time too, coincidentally....
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11-27-2012, 08:40 AM	#10
upstatedoc I'll get back to you 7556 Rep 2,132 Posts Drives: blue streak Join Date: Dec 2009 Location: not downstate iTrader: (2)	gotta be the fuel. __________________ 2018 Stinger GT 2009 E90 N51 /Active Autowerke Stage 2 tune/BMW Performance Exhaust/ Countermeasure enthusiast.
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11-27-2012, 10:02 AM	#11
Nr!qUe Captain 70 Rep 975 Posts Drives: 2009 E90 LCI 328i 6MT Join Date: Nov 2008 Location: Miami, FL iTrader: (3)	Most noticable down here when its cold and dry. smooth idle and peppiness. When its hot and humid my car is idling at 850rpm! __________________ 2009 BMW E90 328i \| Xenons \| MT \| Space Gray \| Beige-ette \| CF Fabric Trim \| iPod/USB \| 20% Tints \| Euro-Plate \| Rear Fog Switch Lego Mod \| Painted Reflectors \| Performance Short-shift Kit \| Style 197 Wheels \| OEM Sport Suspension \|
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11-27-2012, 10:05 AM	#12
BenTrovato Driver 37 Rep 1,577 Posts Drives: e92 335i Join Date: Aug 2010 Location: Toronto iTrader: (4)	Hehe well obviously there's a difference on a nice fall day compared to a scorching humid day. Ever since the FMIC, I find less variation in performance days.
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11-27-2012, 10:08 AM	#13
GOTMH8N Stay Classy 70 Rep 1,021 Posts Drives: 335i Sport Join Date: May 2012 Location: c iTrader: (2)	Mine's faster after I wax it!
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11-27-2012, 10:16 AM	#14
JRJ1970 Captain 27 Rep 600 Posts Drives: 2014 428i F32 Join Date: Dec 2008 Location: San Antonio, TX iTrader: (0)	Interesting observation. I totally felt like this with my 1989 E30 325iS. It seemed to have its "moods." The current E93 not so much. It's pretty much the same daily. __________________ Jay (in San Antonio, TX) 2014 428i coupe, mineral gray metallic with black interior, black ash trim, luxury edition.
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11-27-2012, 10:24 AM	#15
Envuks Captain 25 Rep 741 Posts Drives: '08 e92 335xi Join Date: Apr 2012 Location: MA iTrader: (2)	Get the tune. It will never feel slow again. __________________ Jet black e92 6mt 335xi: 18" BBS RGRs, KW v1, ESS Stage 2 flash, VRSF 7" FMIC, VRSF downpipes, JG Mods m-tech front, mtec V3 AEs, BMS OCC, hardwired valentine 1, p3cars gauge, amber delete, sport seats, factory oil cooler.
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11-27-2012, 11:05 AM	#17
E93Blackhawk First Lieutenant 31 Rep 344 Posts Drives: 2008 335i M sport Join Date: Oct 2011 Location: London iTrader: (0)	Fuel type, brand. Temps play a big role in it, as mentioned with stock FMIC. Generally your mood, if your tired, and you punch it, itll wake you up lol!
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11-27-2012, 11:10 AM	#18
amill411 Second Lieutenant 15 Rep 294 Posts Drives: 2008 335i E92 Join Date: Jul 2011 Location: Tampa, Florida iTrader: (0)	Dude if you threw a JB4 on there it would be night and day difference. I had to take my JB4 off a couple weeks ago and it felt SOO slow. Once I popped it back in I was back to LIGHTSPEED. __________________ JB4 and other stuff
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11-27-2012, 02:52 PM	#19
AWil335i Second Lieutenant 12 Rep 281 Posts Drives: 2007 E92 335i Join Date: Oct 2012 Location: Indianapolis iTrader: (0) Garage List 2007 BMW E92 335i [0.00]	Fuel, temp, air density, heatsoak all make a difference. __________________ 07 E92 335I \| JB4 G5 ISO \| BMS E85 Flash \| DCI \| BMS DPs \| Helix FMIC \| Alpina TCU Flash \| Walbro GLS392 \| E70 \| 429rwhp/474rwtq \|
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11-27-2012, 09:10 PM	#20
Alarbus Private First Class 22 Rep 128 Posts Drives: '15 F30 & '19 F36 Join Date: Nov 2008 Location: Philly iTrader: (1)	Oh man, getting lucky and finding a station that doesn't put ethanol in the 93 is like Christmas morning. Not only is the car more responsive, but on your next fill up you realize you got 30mpg instead of 24mpg.
	Appreciate 0 Quote

11-27-2012, 10:17 PM	#21
ihc95 Major 145 Rep 1,314 Posts Drives: 2021 X3 M40i, 2018 Mustang GT Join Date: Jul 2011 Location: NJ iTrader: (1) Garage List 2007 BMW 335i Coupe [0.00]	Yes!!! Haha I've been thinking this lately. Some days the car feels a little sluggish (not slow, just sort of "taking its time"). Other days the car feels like there's a bomb under the hood. Honestly I think it comes down to it being all in our heads and what kind of shoes we're wearing. For example driving the car with sneakers will feel slower than driving it with work boots. Extra weight of the boots tend to help push the gas a bit more.
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11-27-2012, 10:47 PM	#22
captainaudio World's Foremost Authority 1181 Rep 4,535 Posts Drives: M4 Cab - Cayenne GTS - Jag XK Join Date: Jul 2007 Location: Upper East Side Manhattan - Boca Raton FL - Lime Rock CT iTrader: (0)	I have always felt that cars run better when they are clean. CA __________________ Drivers Club at Lime Rock - International Motorsports Research Center - Society of Automotive Historians - Madison Avenue Sports Car Driving and Chowder Society (0nly a VP) - BMWCCA - Porsche Club of America - M Gruppe - Polish Race Drivers of America (PDRA) - Glen Club (Watkins Glen International) - Jaguar Club of Southern New England
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