That is relative to the operator, a person can run a high HP engine and get better mileage, just because the HP is there doesn’t mean you have to use it.
Cat 475 vs 550 vs 625
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by tnc110, Nov 2, 2017.
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Rubber duck kw, ABudjak, cubixfc and 10 others Thank this.
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I love my tuned twin acert!ABudjak, x1Heavy, dustinbrock and 2 others Thank this. -
Whos tune are you running?
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I had a tuned ACERT. I now have a tuned 6NZ single turbo that has about 30 more hp. I miss the ACERT and would switch motors if I could. The ACERT got better mpgs and had way better throttle response. I may try the ACERT twins on this 6NZ.
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I absolutely second the comment 6nz is overrated... twins are way better hands down, instant throttle responce, better fuel mileage......
I found with my c15 Sdp (converted back) got better fuel mileage when I added hp hauling 140k. At 650 it is way way better on fuel then when it was at 475 as I don't shift nearly as much on hills! There's a stretch of rolling hills that I used to constant have to drop a half gear over and over or even a full gear but now I just glide over without touching the shifter.Rubber duck kw, Camden117, tommygun58 and 2 others Thank this. -
Camden117, Bean Jr. and dustinbrock Thank this.
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So the 475HP C15 with Twin Turbos is an Acert engine?
Would a single turbo conversion make it a better motor than the 6nz itself?
I'm new to CATS want to learn before I get one. -
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I love the BXS I drove. Problem is the tuning.
The tune that’s in it now is much much better.
Had a 550 tune from Cat in it. It was no more powerful than our 3406E with only 475 hp.
Now it’s a 575 tune with 2,050 tq.
Difference is night and day.
I wonder if it’s actually 575 at the wheels because it pulls so good.
Fuel economy is much better too.
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