5th injector

[James Seabolt]

One more thing I could add to my dilema.

Since there is no way to adjust the fuel flow of my second cold start valve
other than when the fuel pressure increases (despite that it's still not
spraying enough fuel at 7 pounds of boost), I have been thinking of
replacing it with an actual fuel injector from the same system.

Then controlling the pulse rate using a 555 timer IC and a potentiomter.
Then I can control the pulse rate from the dash.

I think 555 is right, it's been awhile since my college days.

The injectors used in the Bosch L-jetronic system should operate at 4
volts. I think. I don't know of any voltage regulators that would step down
the voltage to 4 volts. I suppose I could use a regulator that steps the
voltage down to 5 volts and install a resistor to bring it down an extra volt.

Has anyone ever built a system like this using the above components? 

I've seen 5th injector units in books but don't know where to purchase one.
Micro Dynamics makes them, but I don't think they are sold in the United
States. But I would rather build my own system. After all that's what this
mailing list is about. Building your own stuff rather than going out and
buying them.



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James Seabolt -----> mailto:jseabolt at intermediatn.net
Webpage: http://users.intermediatn.net/jseabolt/
ICQ # : 7344463

United States

1980 FIAT 2000 TURBO Spider injected (John Deere aspirated)
1981 FIAT 2000 Spider (Rest in Pieces)
1981 FIAT X 1/9 (Injected)
1994 JEEP Wrangler (2.5l )
1976 Chevrolet Pickup (454 Big block/7.3 liter) 
     
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