'92 525iT poor acceleration - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 5-Series (E12,E28, E34, E39, E60)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 08-02-2004, 01:27 PM   #1 (permalink)
n00b
 
Join Date: Jun 2004
Car:
Posts: 7
Photos:
wilkie3 is an unknown quantity at this point
I have changed the following items:

Air filter (Mann paper)
Oxygen Sensor
Intake boot

She starts fine, runs well, idles pretty smoothly, but the acceleration from a stop is very slow. I know I am not driving a 911, however I would at least expect my 525 to keep up with my Saturn.

Should I change these items as well:

Fuel filter
Spark plugs
Fan clutch

Any ideas would be appreciated.
Thanks.
wilkie3 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-02-2004, 02:41 PM   #2 (permalink)
5th Gear Member
 
Join Date: Sep 2003
Car:
Posts: 1,176
Photos:
sp0rky is an unknown quantity at this point
Get a chip...

the 525s are slow. period. I know, mine is too...

It probably wont keep up with your saturn, sad to say .. but its true. This thing probably weights double what your saturn does and surely does NOT have double the horses.
__________________
sp0rky is offline   Reply With Quote
Old 08-02-2004, 02:49 PM   #3 (permalink)
n00b
 
Join Date: Apr 2004
Car:
Posts: 35
Photos:
beautyland is an unknown quantity at this point
Hi wilkie3,

sp0rky is right. Mine is very slow too. Ford Focus can beat me for initial acceleration. I changed what you have plus plugs, fuel filter etc. No change.

I saw litttle improvement with fuel system cleaners (the one you add to gas). Try that. Our cars weigh about 4500 lbs (not sure) . They are the safest out there.

Good luck.
beautyland is offline   Reply With Quote
Old 08-02-2004, 03:56 PM   #4 (permalink)
Millions of them.
 
Torque's Avatar
 
Join Date: Dec 2003
Location: USA
Car: e36 w/ a m42
Posts: 14,878
Photos:
Torque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond repute
Our cars are not really that fast up to about 40... at leasy mine isn't.

After 40 it just pulls like no other though.
__________________
Torque is offline   Reply With Quote
Old 08-03-2004, 02:38 PM   #5 (permalink)
n00b
 
Join Date: Jun 2004
Car:
Posts: 7
Photos:
wilkie3 is an unknown quantity at this point
Awesome. I appreciate all the replies. I would agree that they are very safe. When my wife is driving our daughter around I always feel confident that they will be ok.
Did the chip mod actually make a difference?
What does that up/down switch next to the shifter do?
Does it just change the shift points?

I spoke with a mechanic who stated that I needed to have my car's computer modified after the oxygen sensor was changed so that I would get my fuel economy and performance back. I am guessing that is a bunch of crap. I just removed the negative battery cable after replacing the oxygen sensor.

What do you think?
wilkie3 is offline   Reply With Quote
Old 08-03-2004, 05:23 PM   #6 (permalink)
Millions of them.
 
Torque's Avatar
 
Join Date: Dec 2003
Location: USA
Car: e36 w/ a m42
Posts: 14,878
Photos:
Torque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond repute
If you used the OEM oxygen sensor, you shouldn't have to get the ECU reprogrammed... there is no way to reprogram it unless you get a chip.
__________________
Torque is offline   Reply With Quote
Old 08-03-2004, 06:11 PM   #7 (permalink)
5th Gear Member
 
Join Date: Sep 2003
Car:
Posts: 1,176
Photos:
sp0rky is an unknown quantity at this point
Reprogram after o2 sensor sounds wierd, never heard of it.

THe chip does make a pretty big difference, but mostly in your flat spots, idle and upper RPM.

initial accel. is improved, but not HUGELY.

one thing i dont like about my chip however is that it gave my car an increased idle speed and the car doesnt adjust to going from no load to full load as well as before and the brakes were also a bit weaker


good luck though.
__________________
sp0rky is offline   Reply With Quote
Old 08-03-2004, 07:32 PM   #8 (permalink)
1st Gear Member
 
Stuka's Avatar
 
Join Date: Nov 2003
Car:
Posts: 315
Photos:
Stuka is an unknown quantity at this point
4200 lbs??? nah, try 3600 stock. I have a 535 and my acceleration puts a msile on my face. im gonna need some cams now to complete the look....
__________________
1990 535i 5 Speed +[E.A.T. chip/Powerflow intake/Tri-flo exhaust system/Strut Tower Bar/Smoked Signals/Pioneer Head Unit/Crossfire vr401 amp/12" Crossfire BMF sub/eyebrows/18" alpina replica rims]+

6 cylinders, 5 Speeds, 4 Doors, 3 Pedals, 2 Exhaust Pipes, 1 Ultimate Drving Machine
Stuka is offline   Reply With Quote
Old 08-03-2004, 09:38 PM   #9 (permalink)
Millions of them.
 
Torque's Avatar
 
Join Date: Dec 2003
Location: USA
Car: e36 w/ a m42
Posts: 14,878
Photos:
Torque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond reputeTorque has a reputation beyond repute
a 535 woild certainly put a smile on my face as well.
__________________
Torque is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 5-Series (E12,E28, E34, E39, E60)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Performance Of 528it Vs 525it WillyChu 5-Series (E12,E28, E34, E39, E60) 1 05-07-2005 12:53 AM
Dude Selling A 525it e36_m3_Turbo 5-Series (E12,E28, E34, E39, E60) 2 03-07-2005 01:29 PM
'92 525i BenzHead 5-Series (E12,E28, E34, E39, E60) 0 12-28-2004 07:05 PM
i test drove a '92 318i w/ irregular idle, is that ehlpitel 3-Series (E36) 2 12-23-2003 01:29 PM
'91 M3 parts will they fit a '92 e36??? paul2k 3-Series (E36) 8 08-28-2003 08:14 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 09:57 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.