[Spridgets] Carb sysn

Guy R Day grday at btinternet.com
Thu Sep 1 16:16:07 MDT 2011


Cause you can't sell it to Snap-On.  LOL.

----- Original Message ----- 
From: "Seth Jones" <sethamosjones at gmail.com>
To: "Guy R Day" <grday at btinternet.com>
Cc: <spridgets at autox.team.net>; "Tim Collins" <thcollin at mtu.edu>
Sent: Thursday, September 01, 2011 5:03 PM
Subject: Re: [Spridgets] Carb sysn


Why not just build this thing?
http://faq.ninja250.org/wiki/How_do_I_synchronize_the_carburetors%3F
On Aug 31, 2011 AD, at 6:54 AM, Guy R Day wrote:

> Tim,
> You don't NEED one, you have a length of plastic screen wash pipe and an 
> ear (or two).  That is all you really need.
> You don't NEED to have more than 2 half inch spanners, but I'll bet you 
> do. (Just count up how many you have - I stopped when I reached double 
> figures!)
> Stuff all this going back from one carb to another and messing about.
> Get it built, enjoy building it, make it so it will work with other carbs, 
> play with it.  Have it so you can read it from the drivers seat as you are 
> driving along.  Make it into the must have tool for all racers (street and 
> track) so they can see what is happening under the bonnet and why they 
> don't get maximum power at all engine rev conditions.   Then sell it to 
> Snap-on!
>
> Best of luck - go for it      :-)
>
> Guy R Day
>
> ps if you need a beta tester for the prototype just send one across and if 
> anyone tells you not to enjoy yourself and don't make it - well ...... 
> LOL
>
>
> ----- Original Message ----- From: "Tim Collins" <thcollin at mtu.edu>
> To: <spridgets at autox.team.net>
> Sent: Wednesday, August 31, 2011 1:10 AM
> Subject: [Spridgets] Carb sysn
>
>
>> I've been day dreaming about this sync the carbs process and a
>> "modern" way to do it. Seems like a device could be made from two
>> Mass Air Flow (MAF) sensors (one per carb) to sync them. A MAF, as I
>> understand it from the K&N filter site
>> (www.knfilters.com/maf/maftestresults.htm) outputs a voltage directly
>> proportional to the flow of air past the heated wire sensor.
>>
>> All you would have to do is read the voltage from each MAF sensor
>> with something - a voltage meter perhaps or go fancy with inputs
>> through a parallel port or USB port to a computer program that
>> displays the voltage output of each sensor. You would adjust the
>> carbs until each one delivered the same voltage.
>>
>> I don't think it matters what the voltage is, you just want them to
>> be the same. If you adjust at a low RPM then the voltage would be
>> different from an adjustment at a high RPM - that's all - being the
>> same number is the important thing. Seems like this should work just
>> fine and the hardware parts are available at your pick & pull.
>>
>> Ok, now does this seem feasible or not? Of course if you build one of
>> these it sould be known as an "Overkill" because that's what this
>> would be, but it could solve the problem of listening to the hiss if
>> hearing is a problem.
>>
>> Yes, I know about and own a Unisync and the Moss ad today featured
>> another similar device (Synchormeter) but neither are as
>> sophisticated as a duel(ing) MAF system!
>>
>> I'm not talking Megasquirt here although you will find a MAF sensor
>> in a Megasquirt setup.
>>
>> What do you think? Would this work? (I'm not looking for investors!!) LOL
>>
>>
>> Tim Collins
>> http://www.flickr.com/photos/12702006@N07/sets/
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