Fordmods Logo

intake mod for EFI.....what do you reckon>???? 

 

Page 1 of 1 [ 7 posts ] 

 
 Post subject: intake mod for EFI.....what do you reckon>????
Posted: Sun Jul 24, 2005 11:41 pm 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 896

Joined: 3rd May 2005

Gallery: 18 images

Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

Check this out....tell me what you think..i cant help feeling sus about it...
http://cgi.ebay.com.au/ws/eBayISAPI.dll ... 56545&rd=1
Top
 Profile  
 
 
Posted: Mon Jul 25, 2005 1:12 am 
Getting Side Ways
Offline

Age: 36

Posts: 7287

Joined: 5th Nov 2004

Gallery: 12 images

Ride: 1994 ED XR8 Sprint

Location: Somewhere in
QLD, Australia

this has been covered dozens of times..... all it is, is a resistor that lowers the temp readings that the IAT sensor sends to the ECU, fooling the engine into thinking the air is colder, which the ECU sees as a signal to dump more fuel in...... just makes the engine run as rich as s**t and chew through fuel

 

_________________

Banned

Top
 Profile  
 
 
Posted: Mon Jul 25, 2005 2:31 am 
Getting Side Ways
Offline

Posts: 2448

Joined: 5th Nov 2004

Gallery: 7 images

Location: Brisbane
QLD, Australia

Dont forget of course that in the medium to long term these dont work because the ECU figures out that something isnt right and re-tunes the car to work around the fudged readings. For that reason, this works really well on some holden ECUs but doesnt work well on any adaptive learning ECU like the ford EEC

Cheers

Nigel
Top
 Profile  
 
 
Posted: Mon Jul 25, 2005 12:59 pm 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 896

Joined: 3rd May 2005

Gallery: 18 images

Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

so in short, its a waste of time then?...i thought it was a bit dodgy...cheers guys
Top
 Profile  
 
 
Posted: Mon Jul 25, 2005 9:33 pm 
Getting Side Ways
Offline

Age: 35

Posts: 533

Joined: 12th Jan 2005

Location: Melbourne
VIC, Australia

Nigel wrote:
Dont forget of course that in the medium to long term these dont work because the ECU figures out that something isnt right and re-tunes the car to work around the fudged readings. For that reason, this works really well on some holden ECUs but doesnt work well on any adaptive learning ECU like the ford EEC

Cheers

Nigel


ECUs don't work around cold start enrichment. Basically all you're doing it telling the ECU it's in cold start mode the whole time.
Top
 Profile  
 
 
Posted: Mon Jul 25, 2005 11:08 pm 
Getting Side Ways
Offline

Age: 36

Posts: 7287

Joined: 5th Nov 2004

Gallery: 12 images

Ride: 1994 ED XR8 Sprint

Location: Somewhere in
QLD, Australia

its not so much cold start enrichment, it fools the computer into believing that the air temperature is colder than it actually is

 

_________________

Banned

Top
 Profile  
 
 
Posted: Tue Jul 26, 2005 12:00 am 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 1440

Joined: 7th Nov 2004

Ride: 320kw BA XR8

Location: Adelaide
SA, Australia

Actually looking at the EEC programing shows that the resistor mod won't actually change fueling, that is actually controled by engine coolant temp not air intake temp. It also shows how the resistor mod won't really do anything for timing, the factory timing vs ACT/IAT only remove 2-8 degrees of timing once the air temp becomes REALLY hot (Naturally aspirated engines should never reach these temps).

But basically this is what the EEC does on the V8's (6cyl should be pretty similar though):
0-65 degrees C - there is no effect.
75 degrees C - retard timing by 1 degree at WOT
85 degrees C - 2 degrees of timing retard + 2 degrees at WOT
115 degrees C - 2 degrees of timign retard + 6 degrees at WOT
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 7 posts ] 

Who is online

Users browsing this forum: Google [Bot] and 8 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Fri Dec 15, 2017 4:37 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names