[Diy_efi] Connector for the DIY-WB Project

[William Shurvinton]

Oh yes. We have a couple of projects ongoing in the UK to graft these on.
It's just a shame that I found out about them after I had bought my DCOEs
:-(. They are available cheaply because race guys buy a new bike, haul off
the injection system and throw on keihin slide throttle carbs. Their loss,
our gain.

There is a rumour that the bike boys tend to slightly oversize the TBs as a
marketing gimmick. They are so much larger than the ones used on carb'd
versions of the same engine for the HP hike that it would tend to make
sense. Then again if nothing happens below 5000RPM a little tip in stumble
is not a major issue :-)

Bill
----- Original Message -----
From: ptegler at cablespeed <ptegler at cablespeed.com>
>
> 2) Another interesting tidbit.  Has anyone considered
> using some of the quad throttle bodies from
> motorcycle systems on small 4 cylinders?  It's
> interesting to note that even a 600cc motorcycle
> usually uses something in the range of  38 mm
> butterflies x4 (one each cyl) when a 1500cc Spitfire
> engine is closer to needing 31-35 mm butterflies
> to run right.  Then again, the bike is running at twice
> the rev range, so volumetrically, they both breath
> about the same amount of air per unit of time.



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