This is a direct link to a gadget made for determining Piston Lift.
http://www.terryhunt.co.uk/mini/pics/tech/picsc/pics.htm
This in conjunction with the Air/Fuel -----Rich/Lean Gauge would
be a good tool even with the Car still in the Driveway at different RPM'S
as far as figuring the effects of Needle profiles relative to each other.
It should find Rich and Lean spots in the Rev range that would simulate
similar conditions as the going down the road not under a load.
Again, this shouldn't be this complicated but a perfectionists tool.
Wayne
--------------------------------------------------
From: "Wayne Lee" <wayne@motorcarriage.com>
Sent: Friday, January 01, 2010 1:57 PM
To: <jimmuller@rcn.com>; "Triumph List" <Triumphs@autox.team.net>
Subject: Re: [TR] zenith or su's ?
>
> Visibly seeing the positions of the Pistons alone under the Hood won't
> help You figure out Air/Fuel mixtures that are taking place
> at those given times.(Plus the Manual lift Buttons don't move unless
> pushed, they're Spring loaded.They sell Air/Fuel mixture gauges
> that are cheap enough and are set up with an Oxygen Sensor that You have
> to place in a good position.
> http://www.jetlink.net/~okayfine/su/airfuel.html
>
>
> Then this info combined with Piston position would give You an exact
> reading of what the Needle and Jet are delivering.
> at the various positions. Look at the Gauge this guy made here:
> http://www.terryhunt.co.uk/mini/pics/tech/picsb/pics.htm
> If you could get a throttle position sensor or something like a rheostat
> hooked up to a rig like this it would be very informative.
> Problem is It would be hard to fit under the Hood. Probably easier than a
> Child in the Engine compartment, which I wouldn't recommend.
> Probably all overkill but the A/F Meter alone can be a big help.
> Wayne
>
> --------------------------------------------------
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