Remapping - Fuelly Forums

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

Reply
 
Thread Tools Display Modes
 
Old 07-16-2012, 12:01 AM   #1
Junior Member
 
Join Date: Jul 2012
Posts: 1
Country: United Kingdom
Location: Newcastle/Sunderland/Durham
Remapping

Remap your car will gain your MPG, this will be a good way of showing your driving skills off

As i provide UK remaps i know that if you change your driving style you should see a 15%/20% gain in the MPG, im going to use this website to find out if i will benefit from it
__________________

sp0okz is offline   Reply With Quote
Old 07-16-2012, 09:21 AM   #2
Senior Member
 
Join Date: Mar 2011
Posts: 329
Country: United Kingdom
"... If you change your driving style ..." is the key phrase here.

Yes, the extra low-end torque will let you drop your RPMs & hence you should save fuel, but the bulk of the saving would be in changing driving style, not the remap.
__________________

MMUK is offline   Reply With Quote
Old 07-16-2012, 08:43 PM   #3
frv
Junior Member
 
Join Date: Nov 2010
Posts: 6
Country: United Kingdom
Hi Mike

If I currently use hypermiling techniques and get 40+% over manufacturer's figure in my 1.6 tonne bus, do you reckon I would see much of an increase in mpg if I had a remap?
frv is offline   Reply With Quote
Old 07-17-2012, 12:04 AM   #4
Senior Member
 
Join Date: Mar 2011
Posts: 329
Country: United Kingdom
Yes - it should give you more power in the low end, so that when you Pulse, you can be in a gear one higher than you would otherwise have used. It also makes it easier to (for example) be in 5th in a 30 zone.

Part of the concept of P&G is to reduce your average RPM - by remapping (and focusing on the low end), you should be able to reduce your average RPM (& hence average engine resistance) further.

However, I would avoid the 90%+ load area at low RPM - the BSFC chart tends to drop off after that point. I try to stick to 80-85% load% when I'm pulsing.

Whether this is cost effective is another question. I have doubts about the cost effectiveness of most mods (although I have had a lot of mods done myself, including remapping... :-) ).
MMUK is offline   Reply With Quote
Old 07-17-2012, 04:51 PM   #5
Registered Member
 
Join Date: Aug 2009
Posts: 2,483
Country: United Kingdom
Location: Mid Wales
My Fiat 500 Abarth has been remapped, but it was for power and torque, it made little difference to the economy at all.
__________________

Please subscribe to my YouTube channel
Draigflag is offline   Reply With Quote
Old 07-17-2012, 05:28 PM   #6
Senior Member
 
Join Date: Mar 2011
Posts: 329
Country: United Kingdom
>...do you reckon I would see much of an increase in mpg...

I should have been more explicit when answering this, yes, you should see an increase in MPG if you adjust the pulse phase to use lower RPMs (closer to the peaks in the BSFC chart), but it'll be small (the reason is that you are only in the pulse phase relatively briefly).

As Draigflag says, I don't think the overall economy change will be particularly significant. I saw an improvement from 72 to 75 mpg when I remapped, but I also modified the aerodynamics simultaneously, so that makes the two mods hard to unpick.
MMUK is offline   Reply With Quote
Old 07-17-2012, 05:30 PM   #7
frv
Junior Member
 
Join Date: Nov 2010
Posts: 6
Country: United Kingdom
Thanks for the answers chaps - it's probably not worth it for me then, the payback period would be too long. I can do 30 in 6th in my car on the flat without labouring the engine - loads of torque already!
__________________

frv 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


Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 06:13 PM.


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