Compression Ignition Addict
Join Date: Mar 2010
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We don't have "exhaust brakes"!!
Ever since I got my truck I've been really disappointed with the "exhaust brake", or should I say lack thereof. An exhaust brake increases exhaust back pressure and makes the engine harder to turn due to the work needed by the pistons to push the exhaust out against that pressure.
The dodge and chevy trucks increase exhaust back pressure by closing the turbo veins. This would increase the turbo speed and create boost, no? There is no such increase in boost in my truck, aside from the normal increase of a few pounds that you get in any turbo diesel engine when down shifting. My truck down shifts, but there is no additional resistance that I can detect in addition to the shift. NONE!!!
I'd bet the engineers didn't really put one in this truck because it would turn the turbo faster and this turbo is pretty weak. That's my best guess.
2011 F350 4X4 CCSB SRW, King Ranch, 3.55, Mini Maxx, 4 inch exhaust, egr gone, Confederate Diesel turbo kit with a S363 and 0.91 twin scroll turbine housing, and stock air filter.