DynoTune LC-1 Wideband

[JP.]

Annyone experiance with this kit : http://www.dynotunenitrous.com/store/Sc ... roduct=151

Tried to install this kit today with no resulds.

Running the Autometer AF gauge for a while with a 4 wire smallband sensor so I was hoping this kit would convert my gauge into a wideband meter.

With the smallband sensor fitted I usualy saw readings of about 14.2 :1 at idle and about 14.7:1 at cruising speeds. But as smallband aint quick in responce at WOT I needed something more acurate.

With this new wideband kit I only see 11.0:1 all the times.
There was a new Bosch sensor delivered in the kit.
Free air calibration had no resulds.

[bill shurvinton]

You need to hook your laptop up to the LC-1 to check that it is happy. If it is then you need to check that you are using the correct analogue output and that you have not changed the transfer function.

You would be better saving up for a proper gauge longer term, but as a cludge it is not too bad.

PM me if you want some detailed fault finding help and the people you bought it from can't sort you out.

Bill

[JP.]

Aaaah it seems there's a minor fault in the manual.
Manual sayes, connect the brown wire to the purple Autometer wire, the yellow wire is not used, tape up and move aside.

It should be : connect the yellow wire to the Purple.........
Brown wire is not used,.......

The guys from DynoTune helped me out but thanks Bill for your help also.

Regards JP

[stevieturbo]

Dont use a gauge that is calibrated for narrowband use, for reading wideband AFR's

http://stores.ebay.co.uk/new2006power-DigitalWorld

get a 0-2v digital voltmeter with 5-18v capable power supply.

Its perfect for a cheap digital AFR readout from an LC-1

Note...20v item is the one. You just alter dip switch settings to move the decimal point.

[JP.]

You might be right, Ill guess it aint accurate enough and I can't read anny numbers.
It ll give me an quick indication and thats what I need as small band aint quick in responce.

I am driving a carb ontop of the blower so I need an indication what my AF is and if something might go wrong I want to see it.
As the weather changes so will my AF ratio. Its not my plan to change jets every week I only need a good running engine with a decent AF ratio.

Like nomal carb't factory cars you didn't change jets every week you just drove it for years.
As my setup aint factory anymore I need to compromise myself within the weather conditions and AF ratio.

Next is I don't like digital number readings, its like watching a digital number rev counter instead of a moving pointer.......
I'll need to see where the needle goes.............if I see moving leds from left to right within an eye corner it will give me a quicker indication that there might be something wrong than moving numbers while I am watching the road.

Dynojet Commander was a bit to exepencive so this could be (hopefully ) a good alternative.

[stevieturbo]

I have never used an analogue AFR meter, but I can see the appeal....

BUT, a digital is better, and will offer much better response, which is a damn sight more important.