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Old 11-16-2012, 12:03 PM   #1 (permalink)
amc82286
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LB7 bigger injectors

so im very near to replacin my injectors because they are goin bad basically my truck is stock. i am wantin to put a 50 horse injectors in the truck an later on down the road go ahead with efi live my question is am i goin to notice anything from just the bigger injectors a little bit more pep? maybe a light black smpke? better fuel milage ? or is it just goin to be the same as stock ??
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Old 11-19-2012, 11:05 AM   #2 (permalink)
amc82286
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noone????
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Old 11-20-2012, 02:25 AM   #3 (permalink)
Gunrok 02 LB7
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I'm no expert on bigger injectors, but I think bigger injectors will require EFI live for the truck to not have any driveability issues. Changing injectors without changing the tuning would be a bad idea I think.
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Old 11-20-2012, 07:17 AM   #4 (permalink)
amc82286
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hmmm duno i was told that by just adding bigger injectors i would maybe gain like a haze of black smoke because they are adding more fuel into te wngine an black smoke is just unburnt fuel but im not sure how it wud affect the running of the engine
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Old 11-20-2012, 08:54 AM   #5 (permalink)
superpro56
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I dont think the truck will run any differently. Slightly more power, probably worse fuel mileage. It wouldnt be the optimal setup without re-tuning for the bigger sticks. To make full use of them, redoing the pulsewidth and timing to make it the most efficient burn if youre looking for power.
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2002 Silverado LS 2500HD CC/SB, EFI Live V2 DSP5 by Duramaxtuner, Big Dipper Trans w/ PI converter, Danville LBZ CP3 w/modded regulator, Banks Techni-cooler, 4" MBRP all stainless exhaust with 6" tip, Kennedy boost controller, Air Dog 150, Kennedy Billet Pickup and custom bulkhead fittings, Intake horn mod, SD manifold, S&B intake, Cognito HD tierods, Cognito idler/pitman arm braces, pump rub fix, Autometer Cobalts on the A-pillar (fuel press, boost and pyro), Recon smoked cab lights and smoked 3rd brake light, Kodiak badging, Bilsteins, Westin stainless step bars, Cooper Zeon LTZ 265/75/16, ExtangRT Tonno, Tekonsha Prodigy, Husky liner floor mats, Line X OTR, Lund stainless cold front grill cover

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Old 11-20-2012, 10:02 AM   #6 (permalink)
amc82286
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well im wanting to go with efi live but my injectors have reached the point of the need to be replaced an i cant afford to replace injectors and efi live at the moment soo eventually ill do efi but unfortunately i have to do injectors firstan it would be dumbto put stock injectors in untill i get the efi
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Old 11-20-2012, 10:06 AM   #7 (permalink)
superpro56
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What do you plan to do with the truck? The stock sticks can support more HP than the stock charger can supply air so unless you plan on going to a bigger charger, stock sticks will more than satisfy power requirements.
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2002 Silverado LS 2500HD CC/SB, EFI Live V2 DSP5 by Duramaxtuner, Big Dipper Trans w/ PI converter, Danville LBZ CP3 w/modded regulator, Banks Techni-cooler, 4" MBRP all stainless exhaust with 6" tip, Kennedy boost controller, Air Dog 150, Kennedy Billet Pickup and custom bulkhead fittings, Intake horn mod, SD manifold, S&B intake, Cognito HD tierods, Cognito idler/pitman arm braces, pump rub fix, Autometer Cobalts on the A-pillar (fuel press, boost and pyro), Recon smoked cab lights and smoked 3rd brake light, Kodiak badging, Bilsteins, Westin stainless step bars, Cooper Zeon LTZ 265/75/16, ExtangRT Tonno, Tekonsha Prodigy, Husky liner floor mats, Line X OTR, Lund stainless cold front grill cover

540HP/1033TQ @ Danville Performance 8/21/09
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Old 11-20-2012, 10:34 AM   #8 (permalink)
amc82286
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its just a daily driver i do pull a trailer not to heavy every so often but i also have a stage two cold air intake
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Old 11-20-2012, 10:45 AM   #9 (permalink)
superpro56
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My vote is to put stock injectors back in, then take the difference in cost of stock injectors and honed injectors and put that towards EFI. I think that is a much more flexible way to make more power.

But its your truck and your money and only my opinion.
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2002 Silverado LS 2500HD CC/SB, EFI Live V2 DSP5 by Duramaxtuner, Big Dipper Trans w/ PI converter, Danville LBZ CP3 w/modded regulator, Banks Techni-cooler, 4" MBRP all stainless exhaust with 6" tip, Kennedy boost controller, Air Dog 150, Kennedy Billet Pickup and custom bulkhead fittings, Intake horn mod, SD manifold, S&B intake, Cognito HD tierods, Cognito idler/pitman arm braces, pump rub fix, Autometer Cobalts on the A-pillar (fuel press, boost and pyro), Recon smoked cab lights and smoked 3rd brake light, Kodiak badging, Bilsteins, Westin stainless step bars, Cooper Zeon LTZ 265/75/16, ExtangRT Tonno, Tekonsha Prodigy, Husky liner floor mats, Line X OTR, Lund stainless cold front grill cover

540HP/1033TQ @ Danville Performance 8/21/09
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Old 11-20-2012, 11:09 AM   #10 (permalink)
amc82286
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lol well there wont be a difference an actully out the door im only payin $2000 for all 8 injectors my brother rebuilds injectors an hones them out for a company soo i get them at his cost thats really one of the inly reasons i am goin bigger is no cost difference
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