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440cc Injector Scaling

Old Apr 20, 2006 | 03:37 AM
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Default 440cc Injector Scaling

I've modified the Stock Vortech Fuel System with 440CC Deatschworks Injectors and a 6 to 1 FMU.

The car runs well, but is a bit hard to start. It starts rich (1-2 seconds) then cleans out and idles good about 700RPM, the AFR fluctuates between 15.1 - 14.5 so I think that the SS box setting in those cells are fine, But could it still be to rich even though AFR is reading in the correct range at Idle ?

Any Educated Ideas.........
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Old Apr 20, 2006 | 06:07 AM
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r u using e-manage ?
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Old Apr 20, 2006 | 06:12 AM
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SS Box (Split Second)
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Old Apr 20, 2006 | 07:21 AM
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What is your fuel pressure at idle? Too much fuel pressure can cause a hard start condition, especially when the engine is warm.
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Old Apr 20, 2006 | 08:27 AM
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Should Be what stock is 51 PSI
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Old Apr 20, 2006 | 01:46 PM
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set ur idle to 850.

and your fuel pressure 48-50 at idle.

do u have cams ???
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