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nice mxture ratio meter idea

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koolkarmakombi enkarmarising

2,078 posts · joined Jun 2003 ·

#427763
http://www.markvanderkwaak.com/dbbp/tech-tips/mm.html
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kombi-troppo Seriously Crusin Dubber

123 posts · joined Sep 2005 ·

#428487
Nice idea - so, did you make one??
1974 Orange Camoflage Kombi Camper
1976 Yellow Kombi Camper

Purple Martin Fahrvergnugen

913 posts · joined Feb 2003 ·

#428767
Nice idea, I might make one some time.

I suppose that if you had dual carbs you could tune each side individually by putting the sensor in one side's exhausts at a time.
1959 red & white Beetle
1975 Kombi camper

kombikim disfunctionally capable

1,521 posts · joined Dec 2002 ·

#428813
I fitted the Jaycar kit to my Humber, using a sensor from a Daihatsu Charade, fitted by drilling hole into (2") down pipie just after exhaust manifold and using a TV aerial mast clamp to hold it in, worked fine, but still needs to be calibrated to be accurate as far as the exact fuel air ratio, rather than indication of what is happening, I was happy with 2nd option, I have seen no good way to fit to kombi so far let alone the beetle, as the sensor needs to be projecting inside the pipe, so is fairly restrictive in a small pipe, & must not be too far from heads as it requires very high temp to operate & distance from head also affects the accuracy of a reading.
Please, I need drivers side window regulator (winder mechanism) for my '54

mnsKmobi Wolfsburg Wizard

589 posts · joined Aug 2002 ·

#428836
kombikim wrote:...& must not be too far from heads as it requires very high temp to operate & distance from head also affects the accuracy of a reading.
Can't you get ones that have a heating element?

kombikim disfunctionally capable

1,521 posts · joined Dec 2002 ·

#428841
yes, but the air/fuel mix indication, may not be as accurate by the time it gets down past muffler, ideally
on a kombi you would have one each side just where each pairs into standard muffler at end of header,tempted to try it one day
Please, I need drivers side window regulator (winder mechanism) for my '54

lugnuts Custom Title Time!

1,070 posts · joined Aug 2002 ·

#429103
These are all narrow band right,i dont think there that accurate,from what ive read thay just say lean or rich and u dont know how rich or how lean.:o

kombikim disfunctionally capable

1,521 posts · joined Dec 2002 ·

#429121
I am not sure how to define narrow, I forget the specs but I regarded it as wide, even when idling the indication would flick over a few leds, it is not 3 Leds as originally stated at top of post. actual accuracy is set by turning a trimpot & so can be calibrated if you have access to a u-beaut analyser. I found it very useful with my triple carbies setting them up & by the reading could easily tell if there was a problem ie if engine spluttered a bit you could straight away tell whether it was shortage of fuel or excess of fuel, on a standard spec single carb motor they are little more than an interesting toy, but anything else they are very useful. On cars that are fitted with the sensor as standard (all modern EFI cars) the sensor is usually fitted centrally in the collector box area of the exhaust manifold as that is where there is the least restriction & it picks up the average mixture from all cylinders to send info to computor
Please, I need drivers side window regulator (winder mechanism) for my '54