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Old 11-17-2012, 11:52 PM   #1 (permalink)
coalblowin02
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how can i tell if my truck has 45% injectors?

I just bought a 04.5 lly and the kid says it had 45% injectors is there any way to tell possibly through efi live scan tool or something thanks.
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Old 11-18-2012, 12:59 AM   #2 (permalink)
chevyinlinesix
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I do not know for sure, but I would think that you could tell with a scan tool by monitoring pulse widths versus a truck with stock injectors. Because of the bigger holes in the 45% injectors, they need to be open for less time to inject the same amount of fuel. So if you can get fuel rates mm3 and pulse widths from a stocker, should help you out.

Also... if it has a stock turbo and a PPE boost valve, it is highly unlikely that it has 45% over injectors without smoking like a freight train. Well... it is possible, but the power numbers wouldn't be there and would be no need for it. Driveability would likely noticeably suffer as well, especially given the large tires.

Other will hopefully chime in, I'm not experienced enough to be able to say what I said was 100% correct
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Old 11-18-2012, 09:19 AM   #3 (permalink)
coalblowin02
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Its not the truck in my sign. Its a 04.5 reg cab lly its got a garrett 4094 turbo and a ATS stage 3 trans kid said it had exergy 45% injectors and danville 45% cp3 but I dunno for sure?
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02 cc sb 2500hd red-cold air intake-5 inch into 6 inch miters Black-Efi live-diy laptop mount. ppe boost increase valve-onboard air york 210 with train horns-6000k HIDs-ported intake horn-led dash cluster-06 tow mirrors with diy led mod-03 tail lights-red leds in wheel wells-5 percent tint all the way around-diy high idle mod-6 strobes in front 2 in rear-carbon fiber autometer gauges-carbon fiber dash surround-sas with 79 ford axle,custom traction bars-bilstine 5150s
22x14 fuel hostages wrapped in 35 14.50 22 iroc debagged and detrimmed all plastics smoothed and color matched all lights smoked,polished driveshaft,ppe stage v with ml precesion converter and ppe deep pan,built by me thanks to mike L and the dmax store
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Old 11-18-2012, 10:30 AM   #4 (permalink)
chevyinlinesix
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Oh sorry, I failed to realize the year and as such was not the truck in your signature

One thing you can try, is calling Daniville, give him the kids name and ask if he purchased that pump from him. Same thing with the injectors, try and call. They might say they won't tell you, but worth a shot. Too bad so many people don't keep their receipts.
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1987 GMC Sierra 1500HD, RC LB, 12 bolt 3.08 posi, built 383 stroker, TH400, 13" towing converter, 26mpg highway, 22 city, daily driver/drag truck. Swapping in a built TT Duramax/Allison. Looking for about 700RWHP
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Old 11-21-2012, 10:48 AM   #5 (permalink)
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The best way would be to put tuning back to stock and do a dyno test. It should also smoke pretty good on a quick launch. I find that quite often what is claimed to be installed for injectors often is not.
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Old 11-21-2012, 02:07 PM   #6 (permalink)
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Look for a lift pump. I doubt even a modded cp3 could hold 45% without one.
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Old 11-21-2012, 06:26 PM   #7 (permalink)
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All good advice ^
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1987 GMC Sierra 1500HD, RC LB, 12 bolt 3.08 posi, built 383 stroker, TH400, 13" towing converter, 26mpg highway, 22 city, daily driver/drag truck. Swapping in a built TT Duramax/Allison. Looking for about 700RWHP
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Old 11-22-2012, 01:27 PM   #8 (permalink)
coalblowin02
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Sorry it also has a fass 220 thanks for the input
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02 cc sb 2500hd red-cold air intake-5 inch into 6 inch miters Black-Efi live-diy laptop mount. ppe boost increase valve-onboard air york 210 with train horns-6000k HIDs-ported intake horn-led dash cluster-06 tow mirrors with diy led mod-03 tail lights-red leds in wheel wells-5 percent tint all the way around-diy high idle mod-6 strobes in front 2 in rear-carbon fiber autometer gauges-carbon fiber dash surround-sas with 79 ford axle,custom traction bars-bilstine 5150s
22x14 fuel hostages wrapped in 35 14.50 22 iroc debagged and detrimmed all plastics smoothed and color matched all lights smoked,polished driveshaft,ppe stage v with ml precesion converter and ppe deep pan,built by me thanks to mike L and the dmax store
ALL DONE BY MELOTS MORE TOCOME
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