Max RPM of an auto gov?

[97' CTD]

I have seen 5600 with CDS so far...
Brandon

 

[joefarmer]

Free rev, or under load?

Either. They only fueled on the dyno to 3900.

 

[DISTURBED]

I saw 6k out of mine at TS but it was cutting fuel up there but normally 5500 is the most down the track

 

[Cummins Driver]

Either. They only fueled on the dyno to 3900.

Thats weird. My 4k will free rev to at least 4100rpm even on my little 160 pump. They arent overly tight either. As for full fuel, Im not sure. It isnt making any real power past probably 3300rpm or so so i usually shift before then.

Eric

 

[Ragged Edge]

Since I cant do and ag gov, what is the RPM potential of an auto type?

My 13mm has a lightened auto with 5GSK, looks like I need more R's for what I want.

Is 6k possible?



I cant run a hand throttle either.

I had hasiley 6k springs they free rev that not underload just get some 3/8 pipe and drill it to 5.3 id and .940 long take care of your rpm problem and alot more controling

 

[BluegrassDiesel]

I had hasiley 6k springs they free rev that not underload just get some 3/8 pipe and drill it to 5.3 id and .940 long take care of your rpm problem and alot more controling

I have thought about that several times. Do you run this in your truck? Im assuming you just run the stock idle spring with the pipe in the middle?

 

[GOT-Torque]

just pray that if something in the driveline lets go you can get out of the thottle quick, otherwise bad things will happen.

 

[Fireman450]

I had hasiley 6k springs they free rev that not underload just get some 3/8 pipe and drill it to 5.3 id and .940 long take care of your rpm problem and alot more controling

Would you care to elaborate a little more on this please?? Mabey a pic?

Lynn

 

[Cummins Driver]

I would assume you leave the idle spring in, and put the pipe inside of it?

 

[zstroken]

That is an old trick done before GSK's existed.

 

[Persingerpulling]

I ran this in my pump as well. Once the weights were against the pipe it was hard to maintain steady rpm.

 

[Ragged Edge]

Correct you leave the idle spring in and the mid spring the pipe takes care of the high idle spring. I don't have pics and that is what I run on my truck. I had my trany let go 2 weeks ago and all I had was three lifters fail if you listen to your truck you can tell when something is going or is breaking, practice gettin off the throttle fast. lol