[Healeys] Gunson Colortune

[Austin Healey]

The device I use is driven by a wideband lambda sensor, which can be put
into the downpipes. We have two on the Healey, soo it gives spot-on
measurements for each carbs. Some devices can even handle two wideband
sensors at one time, soo You can adjust the carbs simultanously. Not mine
unfortunatly, but I will update to a twin-sensor soon.
The main profit of the gas analizer is that You can see the mixture under
real driving conditions: under load, decelarating, hard acceleration etc.

Gergo

2011/11/17 Oudesluys <coudesluijs at chello.nl>

> Problem with exhaust gas analysing equipment with multi carb engines is
> that you cannot tune the carbs individually, you do not know which carb to
> work on and when it is set properly. One can be a tad to rich while the
> other is lean resulting in an overall acceptable exhaust gas result.
> Kees Oudesluijs
> NL
>
> Op 17-11-2011 7:31, Austin Healey schreef:
>
>> If You can afford, buy a proper wide brand oxigen sensor and analizer
>> device. I use an Innovate Motorsport LM2, and it is easy to use, and will
>> make carb setting spot on. You can log it, map it, or use it directy.
>>
>> Gergo
>>
>> 2011/11/17 Steve B. Gerow<steveg at abrazosdata.com>
>>
>>  I bought 2 of them for #2&  5 sparkplugs.
>>>
>>>
>>> My experience was that when you adjust the mixture to the "bunsen" blue
>>> per the instructions, it's way too lean.
>>> When the mixture is adjusted to run properly, the Colortunes show all the
>>> way rich yellow on the left side of the scale.
>>>
>>> Your mileage may vary.
>>>
>>> --
>>> Steve Gerow
>>> Altadena, CA
>>> BN6
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