What causes "Dragn'fly" (Drag and Fly)?

Gravity perhaps ????

 

is this a serious question?

Gravity
Diesel Engines dont engine brake on there own like gas engines do
Companys Nueter there underpowered trucks...




American Trucker

 

where they both spec'd the same as far as HP, TQ, Transmissions, Rear End Gearing?


And if these engines were detroits that explains it all right there. I call pull a 6%grade loaded heavy(45,000) at 65mph then go up it again with 5000 in the box and cant do more then 35mph then do it again and do 65mph with the 5K. Its never consistant. biggest POS diesel engine ever! (Detroit 60 Series) I'd like to have another CAT please!!!!! lol





American Trucker

 

Just because a person thinks the trucks are speced the same doesn't mean they run the same. Many differences come into play when a person starts comparing why one fleet truck out pulls or runs faster than another fleet truck. Just think about the difference tires, fuel filters, and air filters make on how hard a truck pulls. Heck even the work history of the engines have a big factor in it (i.e. high idle time, abused, and ran low on fluids).

As for the drag & fly concept. I believe it is becoming more and more of a problem. With the over educated idiots running the trucking companies and shops thinking that cutting the HP/TQ back to gain fuel mileage...then you also got the unskilled drivers that don't know how to apply the power properly. I hate to count how many times I almost get rear-ended coming across PA while I'm doing 60 MPH up the hill and coasting about 65 MPH down the hill. On the upside of the hill I pass all the fleet rides slaving away and then they come flying down the other side with thier hair on fire thinking they got a large car.

 

hey now! Some of us have company trucks that can fly up AND down a grade just like you ya know! Well except for like i said when my detroit decieds to be retarded




American Trucker