anyone use afr gauge.... what one?

For all topics relating solely to diesel engines and modifications
Post Reply
rxsmiddy
Bush Crasher
Posts: 99
Joined: Mon Feb 25, 2008 7:48 pm
Location: westcoast

anyone use afr gauge.... what one?

Post by rxsmiddy »

most seem to read max at 20:1........................
really need something that reads 30:1 so can tune to around 20:1
derk
Hard Yaka
Posts: 836
Joined: Mon Mar 03, 2014 5:05 pm

Re: anyone use afr gauge.... what one?

Post by derk »

someone will correct me but I don't think 02 sensors read that lean once you hit 20:1 your already in dangerous country

you need to set everthing rich and then tune the engine lean not the other way around :D
User avatar
tweake
Hard Yaka
Posts: 2212
Joined: Tue Jan 01, 2008 12:00 pm
Location: start of northland

Re: anyone use afr gauge.... what one?

Post by tweake »

rxsmiddy wrote:most seem to read max at 20:1........................
really need something that reads 30:1 so can tune to around 20:1


theres a couple that will. details escape me at the mo but there is a good thread on patrol4x4.com with details of brands and sensor models for use on diesels.
rxsmiddy
Bush Crasher
Posts: 99
Joined: Mon Feb 25, 2008 7:48 pm
Location: westcoast

Re: anyone use afr gauge.... what one?

Post by rxsmiddy »

derk wrote:someone will correct me but I don't think 02 sensors read that lean once you hit 20:1 your already in dangerous country

you need to set everthing rich and then tune the engine lean not the other way around :D


we are talking diesel here not petrol, ritch means high egts witch means engine damage
User avatar
churchill
Hard Yaka
Posts: 1128
Joined: Thu Nov 11, 2010 7:28 pm
Location: Auckland

Re: anyone use afr gauge.... what one?

Post by churchill »

Is this for Common Rail tuning?
rxsmiddy
Bush Crasher
Posts: 99
Joined: Mon Feb 25, 2008 7:48 pm
Location: westcoast

Re: anyone use afr gauge.... what one?

Post by rxsmiddy »

nah this is for 1hdt tunning
User avatar
churchill
Hard Yaka
Posts: 1128
Joined: Thu Nov 11, 2010 7:28 pm
Location: Auckland

Re: anyone use afr gauge.... what one?

Post by churchill »

Interesting, so for full power is it a stoichiometric tune or lean or rich? Sorry, off topic.
User avatar
skidmark
Hard Yaka
Posts: 616
Joined: Sun Sep 12, 2010 2:24 pm
Location: hamilton

Re: anyone use afr gauge.... what one?

Post by skidmark »

I run a pair of these on my 1uz, http://www.innovatemotorsports.com/products/MTXL.php

They go to 22:1 on petrol but the table states diesal to 99:1
They come with leads to plug in to a computer to change parameters,I only assume to set up for diesal
modified surf, hardly drive it seem to keep modifying it....
Trundle
Hard Yaka
Posts: 617
Joined: Thu May 19, 2011 9:14 pm
Location: Taranaki

Re: anyone use afr gauge.... what one?

Post by Trundle »

You just get them off Nz performance they are good for diesel tuning I have one
User avatar
skidmark
Hard Yaka
Posts: 616
Joined: Sun Sep 12, 2010 2:24 pm
Location: hamilton

Re: anyone use afr gauge.... what one?

Post by skidmark »

Trundle wrote:You just get them off Nz performance they are good for diesel tuning I have one

That's where I got mine from aswell.best deal I could find
modified surf, hardly drive it seem to keep modifying it....
Post Reply

Return to “Diesel Engines and Modifications”