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While it may be true that multi hole injectors atomize the fuel better, it ain't going to make a difference on your stock truck. I have USCAR EV6 50lb/hr injectors in my turbo 6.0 foxbody with stock cam/valvetrain, I didn't notice a smoother idle or overall driving with just the larger injectors. Even if they put out 26lb/hr at 4 bar pressure like you need, all of the other data won't be the same as the GM data. The offset vs volts, short pulse adder, min pulse width and flow rate data all need to match the injectors installed, no way all of that stuff would be the same. -
A few days ago, I've test drove a 2026 AT4 with the 3.0L diesel and was impressed at how quick it moves due to the insane 495 ft-lbs of torque, and hardly heard any engine noise. Earlier today, I traded in my 2020 6.2L TB for it. I pickup my new ride later this week. This is my first diesel powered vehicle and I look forward to the experience of owning one. -
Because single shot injectors are ancient and multi hole injectors provide smoother running engines and sharper throttle response due to the fuel being atomized better..the best lead I have is a 24lb blue top injector almost everything matches up but the injector will put out about 26lb/hr which is just outside the gm threshold.figured id ask here to see if there was an absolute answer -
Why is my question? Any change in injectors requires a tune. Unless you are going back with the OEM part number or a newer part number of that same injector. Any size difference or type difference like the EV6 style injectors all have different injector data for them. And there is no EV6 injector that matches the factory 25 lb/hr size that your truck comes with. I've been messing with these trucks and tuning them for a long time and what you trying to do doesn't exactly make sense to me.
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By James McArthur · Posted
My 6.6 gas lt8 had lifter noise with 28000 miles bought new 2026 and while driven to dealer it threw #1 rod bearing “HD my ass” good luck with yours i hope it don’t turn a rod bearing!
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