FP with DSM 450s?

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Old Jul 3, 2002 | 08:45 PM
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Default FP with DSM 450s?

Sorry if this has been covered, but a search yielded nothing. What fuel pressures are you guys running with your DSM's? Mine are going in this weekend, hopefully.
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Old Jul 3, 2002 | 09:19 PM
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Default Re: FP with DSM 450s? (inspyral)

fuel pressure should remain the same.
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Old Jul 3, 2002 | 09:48 PM
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Default Re: FP with DSM 450s? (zojirushi)

So if I'm running 40/50psi vac/atmospheric right now, I should leave it there?
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Old Jul 3, 2002 | 11:22 PM
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Default Re: FP with DSM 450s? (inspyral)

wait a min... are u running a s-afc??

if u are, u can leave the fuel pressures the same and use the afc to tune the fuel down.... otherwize, u'd have to mess with the fuel pressures big time. Its not a good idea to run 450's on a motor without at least using a s-afc. Playing with the fuel pressure is not the right way.
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Old Jul 3, 2002 | 11:44 PM
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Default Re: FP with DSM 450s? (zojirushi)

Yes, I'm running an AFC, and it's going to be setup a la the "hack", -40% fuel trim across the board. I was asking what fuel pressures people who are running the AFC hack are using. Sorry for not making that clear.
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Old Jul 4, 2002 | 03:42 AM
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Default Re: FP with DSM 450s? (inspyral)

im pretty sure you run stock fuel pressure with the vafc safc hack! at least thats what the breator of it runs...and it runs great!
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Old Jul 5, 2002 | 02:59 PM
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Default Re: FP with DSM 450s? (boostinb18)

use stock fuel pressures
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Old Jul 6, 2002 | 10:26 AM
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Default Re: FP with DSM 450s? (zojirushi)

stock is like 38/45, right? I just did the install last night, and it seems to run pretty well, with a little hesitation if i let off the throttle for more than a couple seconds.
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Old Jul 6, 2002 | 11:12 AM
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Default Re: FP with DSM 450s? (inspyral)

kinda ot...but is my 6 ohm resistor pack(from an old acura legend) gonna work or should i get another one?
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Old Jul 6, 2002 | 11:16 AM
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Default Re: FP with DSM 450s? (SiRkid)

got this from Hondata:
High horsepower boosted cars often need large injectors. Most large capacity injectors are available in peak and hold form - about 2 ohms impedence, whereas most stock injectors from about 92 on are saturated (8-10 ohms impedance). Honda engine computers require a total injector impedence of about 10 ohms so a resistor pack is needed whenever the stock saturated injectors are swapped with peak and hold.
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Old Jul 6, 2002 | 02:39 PM
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Default Re: FP with DSM 450s? (inspyral)

my set up idle 24psi on b&m regulator with hack safc running on dsm 450cc injectors. Runs perfect all the rpm and even in full boost 9psi.....
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Old Jul 6, 2002 | 02:49 PM
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Default Re: FP with DSM 450s? (turbozc2001)

my set up idle 24psi on b&m regulator with hack safc running on dsm 450cc injectors. Runs perfect all the rpm and even in full boost 9psi.....
24 with or without vacuum?
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Old Jul 7, 2002 | 03:10 AM
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Default Re: FP with DSM 450s? (inspyral)

24psi with vacuum....
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Old Jul 7, 2002 | 03:11 AM
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Default Re: FP with DSM 450s? (turbozc2001)

sweet, thx
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Old Jul 7, 2002 | 03:18 AM
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Default Re: FP with DSM 450s? (inspyral)

sure... nice car
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