What trucks have good jake brakes

Machine gun mode. N14

 

Holy ####ing #### is right, good god.

 

You beat me to it..... as I was reading the OP..... I’m like.... wtf ...... and no one caught on to it. Newbie all the way........ “It’s the engine that depends on the engine brake !!!!!” , not the brand of truck “OP”.........

 

The one with the bigger motor! And an actual "Jacobs" brakes.

 

@Lonewolf2000

I realize my last post was incomplete. There's more to it.

If you find the plate on your truck engine you will find the model and serial number. You will also see the horsepower and torque rating. Horsepower is listed as, for example, 400 horsepower @ 2000 rpm. I have driven hundreds of trucks. I don't recall ever seeing maximum horsepower rated at anything but 2000 rpm's.

I don't know how it is now, but when I drove for Swift they governed maximum rpm's at 1600 under throttle. Therefore you never get to use the maximum horsepower available. That's to keep rookies from tearing up the drive train and get the best fuel economy. It also really prevents a driver from learning how to maximize use of the truck.

The Jake brake isn't under throttle, so you can disregard the urgency to snub brake if the rpm's rise above 1600. For a Swift driver that can sound like you are going to damage the truck. You aren't used to hearing the engine winding up that high. Get used to it. Plan on snub braking once it hits 1800-2000 rpm's. You might even discover that as the rpm's climb that high you will reach an equilibrium, where you don't have to snub brake. It might hold just fine somewhere between 1600-2000 rpm's.

 

@Lepton1 unless its a CAT. Maximum hp comes in lower and they don't like going over 1700-1800 RPM. You might get a little more Jake power higher up, but ol' kitty might rattle herself to bits.

 

Thanks for the correction. You're right. Without a doubt Swift doesn't have any kitties in the fleet.

 

Dt12 is a transmission reason why jakes work is it downshifts and the manual transmission guys often don’t

 

I drove one with that old Volvo engine. Sticking my hand out the window to use as a sail was about equally effective lol.