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07-29-2004, 05:29 PM
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#1
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Low Bitrate
Join Date: Apr 2004
Location: USA, CA, LA
Vehicle: 2002 BMW 325 Coupe
Posts: 82
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Carputer Slowing down BMW E46..gork??..srcstc??
Hi Guys,
Anyone notice a drag on the car when the carputer is on? I have a 2002 E46 and my car feels heavier when the carputer is on. It feels like there's a drag on the alternator or sometime but the car is definitely slower when the carputer is on. Anyone experiencing this, I know Gork and SRCSTC both have BMW, do you guys experience this? I'm using the 150W Opus with an Intel P4 and two PPI amps. Even without the amps it feels the same way.
__________________
2002 BMW E46 (99% done)
Lilliput 7"
P4 2.0
80Gb
DLink FM
Routis 2004
Opus 150W
1200watts of PPI power
2 - 12" solobaric
MB Quartz
IBUS - steering control
USB 2.0 DVD player
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07-29-2004, 05:34 PM
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#2
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Newbie
Join Date: Aug 2003
Posts: 19
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i got one with a carputer installed. granted im runnin a mini itx so im drawin alot less power, but i dont feel a drag at all.
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07-29-2004, 06:26 PM
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#3
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Variable Bitrate
Join Date: Jun 2004
Location: Sydney, Australia
Vehicle: 1994 Honda Accord VTi-S
Posts: 273
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You have 1200W of amplifiers, yet your 150W car computer is the one slowing your car down? I think you need to look at the wiring - make sure it isnt wrapped around your driveshaft :P
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07-29-2004, 06:39 PM
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#4
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Variable Bitrate
Join Date: Apr 2004
Posts: 227
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Dominik wins
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07-29-2004, 06:59 PM
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#5
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Newbie
Join Date: Feb 2004
Posts: 16
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I have a carputer in my 328ci and I have not noticed any loss in power.
Running Opus 150
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07-29-2004, 07:02 PM
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#6
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Low Bitrate
Join Date: Mar 2004
Location: Norway
Vehicle: 83 Porsche 930
Posts: 106
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Quote: Originally Posted by badandy4you
Anyone notice a drag on the car when the carputer is on? I have a 2002 E46 and my car feels heavier when the carputer is on. It feels like there's a drag on the alternator or sometime but the car is definitely slower when the carputer is on. Anyone experiencing this, I know Gork and SRCSTC both have BMW, do you guys experience this? I'm using the 150W Opus with an Intel P4 and two PPI amps. Even without the amps it feels the same way.
You're kidding us, right?
They're making stronger cars than that in Bayern, aren't they???
Tom
__________________
VIA EPIA M9000/120 GB/Xenarc 700TSV/Opus 90W DC-DC
Haicom GPS/3Com 11g Wi-Fi/D-Link BT
WinXP/myHTPC/InfoMap Navigator Eu/PhoneControl w/T68i
Blaupunkt HU & speakers/Velocity active subs/Alpine amps
Progress: removed while waiting for nano-itx
Last edited by TommieG : 07-29-2004 at 07:04 PM.
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07-29-2004, 07:09 PM
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#7
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Low Bitrate
Join Date: Apr 2004
Location: USA, CA, LA
Vehicle: 2002 BMW 325 Coupe
Posts: 82
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I'm not kidding guys. With just the carputer on and without the amps, I can still feel the drag. This is bugging the hell out of me. Looks like I'm the only one that is experiencing this. Hopefully someone will have some insight into this.
__________________
2002 BMW E46 (99% done)
Lilliput 7"
P4 2.0
80Gb
DLink FM
Routis 2004
Opus 150W
1200watts of PPI power
2 - 12" solobaric
MB Quartz
IBUS - steering control
USB 2.0 DVD player
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07-29-2004, 07:10 PM
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#8
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Constant Bitrate
Join Date: Jan 2003
Posts: 125
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Quote: Originally Posted by TommieG
You're kidding us, right?
They're making stronger cars than that in Bayern, aren't they???
Tom
i think you feeling your car slow down is purely pyschological... I have a BMW w/ an EPIA PC, xbox, Alpine 1004 head unit, 7" touch screen, 3 amplifiers and an inverter / Carnetix powersupply... and it feels no different when on or off... |
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07-29-2004, 07:22 PM
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#9
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Variable Bitrate
Join Date: Feb 2004
Location: Guildford, Surrey, UK
Vehicle: 94 Honda Civic LSi Hatch
Posts: 293
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i doubt even a rolling road would notice the difference in output power caused by yr alternator needing more of the engines output to induce more current.
The only thing maybe something to do with OBD connection or some sort of wiring of yr carPC that interferes with the cars ECU/electronics. Esp. with all that wattage on yr amps 150W is going to do very little.
__________________
Mods: 18" Boss rims,Twin custom stainless exhaust,cold air induction.
Sound: Pioneer 7400 HU & 6x9's,12" Vibe Sub,600W Kenwood amp.
CarPC: MicroATX, Inverter, WinTV, Lilliput 7", USB GPS
http://www.no1knows.com/galleries/
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07-30-2004, 02:46 PM
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#10
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See me in my wet t-shirt.
Join Date: Aug 2003
Location: Warwickshire, UK
Vehicle: Ford Focus MP3
Posts: 1,909
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On the Opus I have had no problems. An invertor caused a lot more power to be sucked in but even so it wouldn't be noticable.
When the car is cold and idling, and you power up the Car PC, does the RPM increase more than about 1-2% ? That's about what I get - even the heated windscreen uses more than my Car PC. The only car item I have that makes any difference (And even so I don't know if it's a mental head thing) is the Air-con but most people would already agree that something like that uses tons of power.
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07-30-2004, 03:39 PM
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#11
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Maximum Bitrate
Join Date: Mar 2004
Location: Parker, CO
Vehicle: 2000 Suburban & 2002 Corvette
Posts: 794
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The only problem I think this could be is if you are somehow interfering with you cars electronics when the PC is on. Can't think how.
__________________
EPoX mATX SocketA w/onboard Geforce4MX / 512MB PC2700 / AthlonXP 1600
Lilliput / DVDrom / Opus 150W / WD 3.5" 160GB / SB Audigy NX
XP home / Road Runner / iGuidance 4.0
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07-30-2004, 04:12 PM
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#12
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Constant Bitrate
Join Date: May 2004
Location: Northridge CA
Vehicle: 2001 Honda Civic
Posts: 141
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get a grounging kit.
i grounded my car and all electrical interferences stopped.
if you have an auto tranny then electrical interference can hinder the ECU and auto trannys abilities. my car would shift late all the time until i grounded my car. just something to check out.
also my headlights got a lot brighter once i grounded.
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07-30-2004, 05:01 PM
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#13
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Confusion Master
Join Date: Sep 2003
Location: If you go down to the woods today, You're sure of
Vehicle: 1997 BMW E36 328I
Posts: 9,567
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I have an E36 328i, and haven't noticed any difference, and thats with an inverter.
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07-30-2004, 07:38 PM
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#14
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Maximum Bitrate
Join Date: Dec 2003
Location: New Jersey
Vehicle: 00 BMW 323Ci
Posts: 559
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The added weight of the two amps and two twelves is slowing you down and is making your alternator work harder but the PC... no way. I have the Opus 150 and I don't notice a difference at all. If anything, I would notice it more than you and Gork because I only have the 2.5L I6.
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07-31-2004, 01:02 PM
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#15
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Low Bitrate
Join Date: Apr 2004
Location: USA, CA, LA
Vehicle: 2002 BMW 325 Coupe
Posts: 82
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Hmmm... Thanks for all your response, guys. I will check into your suggestions and let you all know if I come up with anything.
__________________
2002 BMW E46 (99% done)
Lilliput 7"
P4 2.0
80Gb
DLink FM
Routis 2004
Opus 150W
1200watts of PPI power
2 - 12" solobaric
MB Quartz
IBUS - steering control
USB 2.0 DVD player
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