Shifting 13 speed

Shifting 12513 speed in a '81 W900. Big Cam II 400

Category:

Autos & Vehicles

Tags:

• 13
• speed
• Kenworth

[logdog01]

does this have the factory turbo on it or did you guys retro fit a holset on it? I'm assuming it has the factory T590 if thats the right turbo?

[Goldengoat23]

Holset. Will push about 28 lbs when you are standing on it.

[Vista0009]

How many different Big Cam Cummins are their?

[Goldengoat23]

4 Big cams: I, II, III, IV

[Hotrodx199]

the big cam 3 was the best one to get. 4's had a shitty cooling system on them.

[Goldengoat23]

yea, the 4's were a real joke.

[chuckrl]

Good shifting on the 13 speed. And your not "pre-selecting" the splitter. A sign of a good RoadRanger driver.

[bowslap]

Love that Fuller whine.....pair it with tunes from an old Holset, and I'm a happy guy.

[nighttrain334]

He shifting them gears like he's playing a guitar!! very good vid!!

[MegaCamshaft]

its almost like shifting a super 10

[enforcer41]

Bringing back some memories now lol

[chuckrl]

@sokodad Yup, Some guys "pre-select" the 13 speeds into the next range then drive for a bit before doing the actual shift. When you pre-select, you are putting pressure on the splitter forks tip pads and creating un-due wear. Think of it this way (although not the same but the same type of failure) as riding the clutch, when you leave your foot on the clutch, you're spinning the throw-out bearing for no reason thus pre-mature bearing failure can occur. Sounds like you're doing it correct.

[sokodad]

@chuckrl what do you mean by preselecting? Splitting before you shift? I usually split as I'm shifting if that makes sense.

[frederickus]

I tried to count along, but I missed a shift or two.

[444cornbinder]

@Hotrodx199 yeah it was that low-flo system that wasn't worth a shit

[powerstroker0622]

The Big Cam 2 and 3 Are my prefered Engine and a Eaton Fuller 13 speed, but that damn Big Cam 4 was a piece of Shit!

[alex189100]

hey whats are the rear ends ratio & top speed?

[SFtruckerWolf]

I had drived Eaton Fuller 13 speed in Finish truck named Sisu, engine was Rolls-Royce Eagle 320. Second was also Sisu with with NTE Cummins with original 400 hp, but tighten to lot over 500 hp.320 Rolls engine truck was driven with 48 tons weight and NTE Cummins with 60 tons and over, sometimes to 75 tons.