OBD2 tool - Page 7 - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 12-18-2006, 09:36 PM   #61
DRW
Registered Member
 
Join Date: Oct 2006
Posts: 615
Country: United States
"Then there are the tuners who burn new ROMs for OEM units."

Why are my ears burning?

I could go on for hours about the ways the ecu de-tunes the power delivery in certain areas to make it feel smoother and more controllable for the masses, but I might start to sound like a ranting conspiracy theorist!

So let's just say that the auto manufacturers might be more concerned with consumer satisfaction than maximizing FE or power at all rpm/throttle openings.
__________________

__________________
Dave W.
DRW is offline   Reply With Quote
Old 12-18-2006, 09:44 PM   #62
*shrug*
 
Join Date: Sep 2005
Posts: 6,195
Country: United States
Tuning a DSM costs too much. Go honda!
__________________

SVOboy is offline   Reply With Quote
Old 12-18-2006, 09:46 PM   #63
Tuggin at the surly bonds
 
Silveredwings's Avatar
 
Join Date: Apr 2006
Posts: 839
Country: United States
Quote:
Originally Posted by DRW
"Then there are the tuners who burn new ROMs for OEM units."

Why are my ears burning?

I could go on for hours about the ways the ecu de-tunes the power delivery in certain areas to make it feel smoother and more controllable for the masses, but I might start to sound like a ranting conspiracy theorist!

So let's just say that the auto manufacturers might be more concerned with consumer satisfaction than maximizing FE or power at all rpm/throttle openings.
I wish I knew more about the things that can be done by reprogramming.
__________________
Reality is merely an illusion, albeit a very persistent one. - Albert Einstein
Silveredwings is offline   Reply With Quote
Old 12-18-2006, 09:48 PM   #64
*shrug*
 
Join Date: Sep 2005
Posts: 6,195
Country: United States
You're a bimmer man, you can rechip your car very very easily, time for you to learn.
SVOboy is offline   Reply With Quote
Old 12-18-2006, 09:50 PM   #65
Tuggin at the surly bonds
 
Silveredwings's Avatar
 
Join Date: Apr 2006
Posts: 839
Country: United States
Quote:
Originally Posted by SVOboy
Tuning a DSM costs too much. Go honda!
I don't know that TLA so can you elaborate?
__________________
Reality is merely an illusion, albeit a very persistent one. - Albert Einstein
Silveredwings is offline   Reply With Quote
Old 12-18-2006, 10:07 PM   #66
*shrug*
 
Join Date: Sep 2005
Posts: 6,195
Country: United States
TLA!? Iono what it means, but mehbe you're asking about DSM? It's a term for eclipses and such, diamond star motors I believe.
SVOboy is offline   Reply With Quote
Old 12-18-2006, 10:09 PM   #67
Tuggin at the surly bonds
 
Silveredwings's Avatar
 
Join Date: Apr 2006
Posts: 839
Country: United States
Quote:
Originally Posted by SVOboy
TLA!? Iono what it means, but mehbe you're asking about DSM? It's a term for eclipses and such, diamond star motors I believe.
TLA=Three-Letter-Acronym
__________________
Reality is merely an illusion, albeit a very persistent one. - Albert Einstein
Silveredwings is offline   Reply With Quote
Old 12-19-2006, 06:09 AM   #68
Registered Member
 
MetroMPG's Avatar
 
Join Date: Dec 2005
Posts: 4,223
Country: United States
Quote:
Originally Posted by DRW
I could go on for hours about the ways the ecu de-tunes the power delivery in certain areas to make it feel smoother and more controllable for the masses, but I might start to sound like a ranting conspiracy theorist!
We already know you're nuts, so fire away!

In your opinion, between 1000 and 3000 RPM where I usually live, think there's room for improvement in my 993cc engine's ECU? (That RPM range probably rules out the engineers' concerns about making it "controllable" )

Note I don't want to increase NOX emissions.
MetroMPG is offline   Reply With Quote
Old 12-19-2006, 11:37 AM   #69
Tuggin at the surly bonds
 
Silveredwings's Avatar
 
Join Date: Apr 2006
Posts: 839
Country: United States
Quote:
Originally Posted by SVOboy
You're a bimmer man, you can rechip your car very very easily, time for you to learn.
I didn't see this before and you're prob right. Where would I start to get edumacated? TIA.
__________________
Reality is merely an illusion, albeit a very persistent one. - Albert Einstein
Silveredwings is offline   Reply With Quote
Old 12-19-2006, 02:14 PM   #70
Senior Member
 
CoyoteX's Avatar
 
Join Date: Dec 2012
Posts: 230
Country: United States
Location: Southern WV
If you wire up a knock sensor to your stereo and play with your timing you can see there is a lot of economy to be had under 3000 rpm on a Metro. The factory tuning is not really tuned for economy at all it seems like. I can actually drive 45mph/5th gear with the timing 20 degrees advanced without knock steady state. My vacuum readings with that much advance are a lot higher than normal so I know it is getting much better mileage. It knocks under load real bad like that though so it isn't drivable other than to experiment.

Sadly the only people that know the timing and fuel maps for a metro ecu want to sell chips and are not interested in letting anyone know the map locations in memory so there is no way for me to tune the stock computer without a lot of effort to decipher the maps. The factory computer is pretty limited anyway so for a metro to get better tuning you need a megasquirt computer and a wideband O2, EGT, and knock sensor. Then you can run lean burn 18:1 ratio all you want
__________________

CoyoteX is offline   Reply With Quote
Reply

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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuelly Mobile Location Data xbadcrcx Fuelly Web Support and Community News 4 06-29-2011 06:00 AM
How Much Is The Average Price For "minty Clean Vx Wheels"?? panamacolin General Fuel Topics 5 08-23-2007 07:44 PM
2006 xB grille block panels installed GasSavers_Graeme Aerodynamics 7 06-28-2007 12:49 PM
ScanGauge Hockey4mnhs Hypermiling 0 02-05-2007 07:01 PM
OLED's are here - Organic Light Emitting Diodes GasSavers_DaX Automotive News, Articles and Products 4 04-20-2006 05:14 PM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 08:46 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.