Ford IAC

[Mike Brown]

Robert,
	I don't what model Ford IAM that is used on the Edelbrock ProFlo other
than it is a Ford Unit.  I think it may even have a Ford partnumber on
it.  I can only tell you how the ProFlo unit deals with it.  Its DC
resistance is 8.6 ohms and driven from a hi current driver very simular
to an injector driver.  It is driven with a duty cycle modulated pulse. 
The total period is always 6.7ms  When current is applied to the coil
and the shuttle value is pulled back it lets more air in.  As it is
returned back past center less air passes.  The duty of the pulse varies
as needed to get to the desired target RPM.

Hope this is of some help,
mike



Robert Harris wrote:
> 
> Looking for specific information on the IAC used by Ford on its TBI pickups.
> We have one in hand and are moving on a project using it.
> 
> It appears to be a solenoid operated ( like an injector ) device that opens
> closes a shuttle valve.  The amount of time open appears to control the air
> flow.
> 
> Needed is particulars so we can build a controller.  Namely - coil impedance,
> frequency range - pulses per second, and pulse widths.   Any information on
> flow rates would also be appreciated.
> 
> Its part of the Deviant Dark Sides plans to resurrect old technology, claim it
> as our own and become list heroes.
> 
> On a similar note,  need an exhaust manifold for Christine - did any year big
> car 460 have an oxygen bung built in - hate to weld on in myself.
> 
> 1963 Ford C-600 Prison Bus Conversion "Home"
> 1971 Lincoln Continental 460 "Christine"
> 1972 "Whale" Mustang awaiting transplant
> 1978 Dodge Long Bed Peeek Up "Bundymobile"
> 
> Habaneros - not just for breakfast anymore