Jean Dolce What about when the bus is loud on a long trip?

Buses and trucks weren’t traditionally made to be quiet, they were meant to serve their purpose and get the job done.

@@jeandolce838 You're totally correct!

Jerry Sylvester you don’t hear the ever prevalent axle whine? That has been a common problem since the S1900.

Actually the axle whine sounds nice!

@@caleb0606it’s the tires. I know because my bus which is an ic CEs had similar sounding tires from new. The axle whine usually goes away when the gas pedal isn’t being pushed.

LOL

Now I get it 😂from King of the Hill

But it hauls ass...he was at a light and when he put his foot down he FLEW past that minivan...althiugh not a fan of the quietness. I Like to hear the engine at work...

03-12 Productions How loud were they compared to the fans on MFDT CEs?

CentralJerseyRailfan kzfaq.info/get/bejne/kJlkpK57q7bKmGg.html I recommend watching with headphones to really hear the difference.

It’s the tires.

It's nearly identical to that of the Cummins (Which is now just the B series). There are charts out there which show the torque curves side by side. The DT always seemed to rev higher, but some of that may be transmission programming.

I see. From what I remember (from 2008-2011 buses), scientifically-measured in how hard I got pushed back in the seat, it seems like a DT had more power at the low end (from takeoff) than a Cummins (more gradual). Maybe gearing or HP was different, though.

Yeah, horsepower and gearing can make a huge difference. Most IC's in NY run 6.14 gearing, some as high as 6.50 so they have major torque on take off. It's common in states with flat terrain to have 5.97 gearing which is fine on level ground but horrible on hills.

The ISB was comparable to the MaxxForce 7, and was also offered by International as an engine option for repower. The Cummins ISB redlines at 3,000 RPM, irreparable engine damage results at 3,400 RPM. MaxxForce DT redlines at 3200 RPM, again or irreparable engine damage. A gas engine usually redlines at 4,500 RPM or higher depending on design. Cummins ISB 6.7L Rated HP: 240HP @ 2400 @1000 RPM: 107HP @2000 RPM: 213HP Rated Torque: 560 ft-lb @ 1600 @1000 RPM: 560 ft-lb @2000 RPM: 560 ft-lb PSI 8.8L Rated HP: 270HP @ 2600 @1000 RPM: 103HP @2000 RPM: 215HP Rated Torque: 565 ft-lb @ 1500 @1000 RPM: 540 ft-lb @2000 RPM: 564 ft-lb Ford V10 6.8L Rated HP: 362HP @ 4750, 320HP @ 3900 @1000 RPM: 71HP @2000 RPM: 160HP Rated Torque: 457 ft-lb @ 3250, 460 ft-lb @ 3000 @1000 RPM: 375 ft-lb @2000 RPM: 420 ft-lb

It was warm, it shuts off a few minutes into the video.

@@KodieS Beautiful bus Kodie, hope i get to drive one soon. Im sure it warms up much faster than the diesels in winter right?

@@jstkyoshi I would say yes to that, generally. Comparatively, a diesel that kicks itself into high idle will warm up just as quickly as a gas left at normal idle, based on my testing. If both are idling normally, the Gas/Propane will warm up a bit quicker.

@@KodieSOh alright, cool. Would you also say that the likelyhood of diesels (mostly older ones) taking longer to warm up in the winter is because of the viscosity of engine oil used? Perhaps a thinner oil in the winter would circulate better and allow for quicker warm ups? :o

@@jstkyoshi I don't think the viscosity plays a part, it's not that far different than that of a gasoline engine. The core functional differences between gasoline and diesel are the bigger factor. Gasoline engines as you know use spark ignition to fire, creating a high heat situation pretty quickly, whereas diesels rely on compression, creating high heat as well, but in a different way.

I ride a 2015 Thomas Saf T Liner C2 special Ed bus

I ride a 2013 bluebird vision handicap short bus

Ctfuuuuu

Yeah, they're fairly common across the state.

@@MurdamanTy In New York state, it's an option. It is ordered by many districts, but is not required.

What is this switch you speak of?

Ips?

​@@mareyonsmith8761 Yes Indianapolis Public Schools

This is a demo/loaner unit.

@@KodieS What is the normal bus you normally drive?

I live there! In East Amherst to be exact not to far from this run used to work at the regal on transit.

There are a ton of them that use that system.

@@KodieS My district has them on all most all of their air brake buses, whenever I talk about them to people they don't even know what it is. I've noticed alot of New York districts will have them when they go up on the auction.

Not as loud as a MFDT or B6.7.

But no louder than Bluebird's propane engine.

@@CentralJerseyRailfan you mean MFDT and MF7? To me in between I like the DT a little better than the 7. I mean the Maxxforce 7 is not too bad but I'd ride a CE200 with a Maxxforce 7 over that late VT365, AKA 6.0L Powerstroke. Maxxforce is alot quieter than the old Navistar IC Bus Diesel engines.

From the outside it loud but inside is quiet

That’s so true like my girl 794 she’s sounds really loud from the outside since she have 270 horsepower 8.8 liter v8 gasoline 🤩🥰🥰🤟🏻she’s a handicap bus 🚌shorty 10 seats in three wheelchairs rows highback seats for the students in is got the bodysafeguard seatbelts in it like the car truck style seatbelt they don’t use the lap around seatbelts anymore which is much more safer than the lap around one in she rides really smooth Kodie 🤩🤟🏻🤟🏻🙃🙃🤩🤩😉

Yep and i constantly remind myself we all have our opinions

Depends. These propane ones that IC Bus makes have a flat torque curve and an awful lot of torque. IDK about others, though...

Shut up bro

@@ulisessanchez7467 he’s entitled to an opinion.