Air/Fuel Ratio gauge

[blingsta]

Is anybody using one of these? are they accurate?

[Demlotcrew]

Ive just have a o2 bung welded into the X pipe of the SS exhaust for one of these sensors to be fitted and yes they are accurate if in the correct operating range but if you were to go one more you would fit a ETG on each cylinder.

Andrew

[blingsta]

http://cgi.ebay.co.uk/52mm-DIGITAL-AIR- ... dZViewItem

would this be a handy toy then Andrew?

[Demlotcrew]

Thats the cheap part, you would need this to run it.

http://cgi.ebay.co.uk/Innovate-LC-1-Wid ... dZViewItem

[blingsta]

.. looks a good bit of kit.. so that and the gauge is all i need then? then just connect to my m/s and job done?

[Demlotcrew]

Yes in a way,

You will need a bung to be welded into the exhaust, but i would expect one to be there already if ant had done any mapping on your car etc.

Andrew

[Turbo-Brown]

I'd guess that the first gauge is just a guess based on a NB sensor.

One way or the other, the read out isn't useful as it doesn't tell you what the AFR actually is!

[blingsta]

I'd guess that the first gauge is just a guess based on a NB sensor.

One way or the other, the read out isn't useful as it doesn't tell you what the AFR actually is!

but surely if the gauge shows you running rich, it means the AFR if out?

[kam-325i]

If you want the gauge just for info only and are not going to be adjusting the AFR, then its fine......

But if you want to use one to adjust AFR, then you need one that tells you what the AFR is.......

[Turbo-Brown]

This is just it.

For full power, you want to be running rich to the tune of around 12.5:1 odd (possibly a tad richer if you're boosting a lot just to keep things cool), that gauge just says "rich" but doesn't quantify it.

Also, NB sensors are only accurate at 14.7:! or there abouts. Any other mixture and they'll just say "rich" or "lean" but not by how much.

You're much better off saving for a proper WBO2 kit as trying to tune with a NB sensor is a total dead end

[Ant]

innovate LC-1 and XD guage is the only one I'd choose.

the VEMS WB02 and EGT is worth a peek though

[appletree]

Ive got a AEM one with digital read out for Lambda or ARF and it seams to be very good!! my freind is also running one in a R5GTTurbo with good results comes with a boss to weld in to!!

this is the one i have, mine came from the states but not from this dealer, cost £90 posted!!!! sumo power in the Uk sell the same one for £320!!!

http://cgi.ebay.com/ebaymotors/AEM-Gaug ... enameZWD2V

[e30_Turbo]

Erel,

I use the LC-1 WB controller and MS to view/log it, the units are about £150 or so and can be sourced within the UK, I can pass on the details if required.

With the XD1 you get the WB display to slap in the dash but having always got the laptop on I haven't bothered with the gauge.

If you're gonna splash out on anything like this I would suggest the AFR/EGT gauge as you get lots of very usefull info from them.

HTH, Mark.

[blingsta]

Cheers for the info Mark...

Still debating to be honest with ya, i wouldnt be able to do anything with it as i havent made myself competent with m/s ! .. so it wouldnt mean anything apart from another gadget on the dash!!!