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Old 02-14-2011, 05:53 PM
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Can an injector be to large?

Can a fuel injector be to large? Is there a formula for what size of injectors to choose?

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Old 02-14-2011, 06:23 PM
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Some Info here about Mid page>> http://www.gnttype.org/techarea/fuel.../fuelpage.html
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Old 02-14-2011, 06:28 PM
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Quote:
Originally Posted by crussell85
Can a fuel injector be to large? Is there a formula for what size of injectors to choose?
Go here:

http://www.gtsparkplugs.com/InjectorSizeCalc.html

Keep in mind if this for TBI rather than TPI the fuel pressure will be much lower, on the order of 12 to 14 PSI, not the 43 they are talking about which is a property of TPI type systems with an injector for every cylinder rather than 2 to 4 of TBI for the whole engine.

Too small is the bigger problem as this results with the injector being switched on too much of the time. That burns out the electric coil that operates the injection valve.

Bogie
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