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DSM 390 inj. vs. 440inj.???

Old 10-23-2004, 06:04 PM
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Default DSM 390 inj. vs. 440inj.???

question of the day, ..... im setting up a hmt setup with a 14b and gonna run 8 psi ...

now i know i will be running a hack, and with the 440's u have to pull a hell of alot of fuel ... -40 i hear .....

no correct me if im wrong but after pulling more that -20 doesnt it stop reading of the ecu's fuel maps? is this kinda bad

would it be better to hold out and try and find a set of 390's?

do you guys think it would make a diffrence

sorry, im not to much of a tunning/fuel buff
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Old 10-23-2004, 06:15 PM
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Default Re:DSM 390 inj. vs. 440inj.???

I have never heard that. If you chip your ECU you won't have that problem!
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Old 10-24-2004, 11:57 PM
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Default Re:DSM 390 inj. vs. 440inj.???

I have 390cc injectors running 8psi boost and works fine.

But you never reach -20% not even with 390cc unless your rev limit is 11000
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Old 10-25-2004, 12:00 PM
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Default Re:DSM 390 inj. vs. 440inj.???

what do you have your vafc set to?

did u dyno
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Old 10-25-2004, 12:29 PM
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Default Re:DSM 390 inj. vs. 440inj.???

No VAFC, SMC500 idle at -31%, 1000rpm -33%, 8500rpm -23%, running very rich.

No, i didn't dyno as there is no plcae to do that in nmy country

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Old 10-25-2004, 11:23 PM
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Default Re:DSM 390 inj. vs. 440inj.???

whats smc anyone else have any other opinions am i safe to say that 390's would be a better size to run that 440's?
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Old 10-26-2004, 05:52 AM
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Default Re:DSM 390 inj. vs. 440inj.???

why do people still use this method when you can chip your ecu for nothing then you can run pretty much whatever injectors you want
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Old 10-26-2004, 08:47 AM
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Default Re:DSM 390 inj. vs. 440inj.???

i was thinking about trying out uberdata, but unfortunatly i dont know much about tuning and making all my own maps, and i need to learn the program and ---- ....

anyone know where i can find some good info about how to use the program

then all i need to do is to mod my ecu for the eeproms and get a eeprom burner right
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