BANNED by Kris
Join Date: Oct 2011
Location: Pasadena, CA
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He will need tunes to run the injectors efficiently. Without tunes the PCM will not know that the injectors are dumping more fuel than what it is programmed for. Also tunes will wake this truck up!
What year truck is this? Need truck info to answer your question appropriately.
As long as its a '94.5-97 and not a Cali model the truck will run single shots without a tune but...^^^. If this is a '99-03 Super Duty 7.3 it will not run singles without tunes. Drop in turbos for the old 7.3 engines are limited. BD Diesel makes a drop in and Beans Diesel makes the D66. There is a DIY D66 out there but I do not remember who sells it. Kits for bigger/better turbos can be had at places like Irate Diesel to get him into S style turbos or places like Ct Performance sell complete Holset model turbos.
From the '97 Cali truck through current Super Duties had multi-shot injectors. In general there is a quick pilot shot of fuel and then the power shot of fuel after the crankshaft turns a couple more degrees. These injectors quieted down the motors and made them more earth friendly emission wise as the engines would burn cleaner at idle (where most of these engines live if they are service trucks. From '94.5-97 Federal trucks they had single shot injectors. They are noisy dirty injectors while idling but more fuel efficient and powerful at cruising speeds.
Your buddy asking for "single-shots" doesn't mean anything to me. Our injectors go by flow and nozzle size rather then the Duramax's/Cummins's "horse power" sizes. Going by advertised "horse power" (similar to buying our injectors by Stage numbers) is silly. Our injectors are done by cc's and %. So the stock factory injector on a OBS 7.3L is 98cc/0%. This means that in 1000 firings of that injector (at full demand) it will move 98cc of fuel through a stock nozzle. Most of us jump to 150cc/160cc/180cc injectors. This is where the nozzles come in. You can cheat some extra power by going with a larger nozzle (20%/40%/60%/80%/100% over stock) to deliver the fuel faster at full demand then trying to push a larger amount of fuel through stock nozzles. The drawback is that under light demand, idling, or very easy cruising the larger nozzles run rougher then the stock nozzles. The fuel moving through bigger holes doesn't atomize very well.
Get us more info on the truck and what his plans for the truck are and we will be happy to offer opinions on available upgrades.
-Bean's: 160/100 (FF Injectors), 2/ 6-POS chips (TW & Beans tunes), Overboost controller, E-Fuel
-BANKs: downpipe, full exhaust, gauges, intercooler
-Irate: T-4 kit, IC pipes, 3" Irate Plenums, BASB Turbo
-Stage II trans.
-Mag-Hytec trans. and pumpkin covers
-6637, CCV, IDM, 6.0 Fan, 49-Federal PCM swap, MAP line Mod
-370 Amp alt., 40k trans cooler, ADRENALINE PUMP
-twin on-board air w/ 10 gal. tank
-Oh, and a 2015 F350 6.7L DRW 4x4
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Last edited by BigFuel; 04-14-2014 at 09:20 AM.