Cycling cold start injector

[Marc Swanson]

> Could  a secondary cold start injector be set up to run using the WOT
> switch?  Could it be triggered to open at a desired boost pressure?  Could
> it be controlled with a separate fuel pressure regulator T'ed off the fuel
> line?
>
> This is on a MAC 11 engine


Definately DON'T do this.  The problem with cycling the cold start is that
it will give you a false sense of security.. an A/F gauge might tell you
that you are running near stoich when in fact you have the back 2 or 3
cylinders running fine but the front two or three are running DANGEROUSLY
lean due to the un-even spray pattern.

The better way to go about it (if you are up in the high boost area where
CIS can no longer deliver.. about 12-14 psi or so) is to add a set of 5
extra injectors firing into the exhaust manifold like Javad did on his 80tq
(http://marcswanson.ne.mediaone.net/images/Javad/fuel_rail_in_manifold.jpg )
.  The cold start valve is pretty much in the worst possible place for an
extra "enrichment" injector.



Later


-Marc-

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+Marc Swanson                          +
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