detroit vs n14 vs mpg's

It really depends a lot on the set up. The det 60series was very consistant with fuel mileage. I had a 98 Int'l with a 525hp N14 with a 18 spd and 3.336 rears. Best set up Ive ever had. I got 6.8mpg consistantly and it was the best pulling engine Ive ever driven. Only repair I ever did was injectors. Had Celedon not killed that truck for me Id still be driving it. The N14 pulled better than the Detroit. But too be honest you are set either way, both were great engines, but Iam biased to lean twards the N14, I never got out pulled regardless of weight.

 

I agree that both are solid engine choices. The N-14 is great. The Detroit is great. Each can be taken to good potential. The N-14 probably just edges out out the Detroit in low end grunt. 14L and a longer stroke make for a good torque machine. But done right, and depending on who is driving it, they would be a close match. I have gotten great mpg's from both, but think the Detroit, will generally edge out the N-14 on mpgs. Nonetheless, either choice is a good one.

 

I doubt it.

We have never had a 12.7 Detroit in our fleet so I don't have any first hand knowledge but we did have a '96 N14 and the fuel mileage was nothing to write home about. Not terrible, but not great either. OTOH, from what I hear.....a pre EGR 12.7 L will run all day on a gallon of fuel and give you change.

 

[miQUOTE=rank;3165674]I doubt it.

We have never had a 12.7 Detroit in our fleet so I don't have any first hand knowledge but we did have a '96 N14 and the fuel mileage was nothing to write home about. Not terrible, but not great either. OTOH, from what I hear.....a pre EGR 12.7 L will run all day on a gallon of fuel and give you change.[/QUOTE]

It really depends on the set up. If you had a tall gear and a 10spd it will get less than a detroit. Also how you drive it makes a difference like on any engine. If you ease the throttle instead of stomping the pedal everytime you accelerate it doesnt matter what engine, also idleing plays a big part. N14's do not like to idle. I currently have an 07'Pete 387 with a 475 cat 18spd and 3.25 rear. I average 7.1mpg at 65-70mph. Most people dont break 6 with that engine. I set it up right and use an apu to avoid idle. Be smart in choosing not just the engine, but the rears and transmission.

 

I'd put my n-14 against any engine for fuel mileage, and unless someone has been into the ecm or put a power box on a detroit it won't come close on a long pull to the n-14. The N-14 is a simple engine to work on and relatively cheap

 

I average 6.8 in a 08 Columbia with a Detroit 60

 

what do you pull and where do you drive

 

I stay primarily on I-10 from Phx to TX and back with dry freight.

 

Personally on that route you would probably get better mileage with the 12.7 However, if you were always in the mountains and at 80,000 I would MUCH rather have the N14. JMHO