hits around 4000 rpm then doesn't go anywhere i know it has a limiter but how do i disconnect it any thoughts also all the obviouse aside if i gun it .
it chokes a little than a lot then does fine any thoughts

 

what are you doing when this happens

 

And why would you want to take it over 4 grand. Quick disassembly methods manual?

 

Custom tuning can set the limiter anywhere you want it to be...but it's at 4k for a reason.

 

if you get it much over 4k please post pics of the aftermath.

 

I have been over 4K more than once........several times on the Dyno as a matter of fact. 150K and still have all the original bottom end parts but one and it was still running when I pulled that one out 85K miles ago. That tune is in the "don't give it to anyone file".

 

I agree 100%

 

the limit for good stock rods is somewhere above 4500. I've seen more than a few trucks run up to 4500. I've seen 4200+ in mine.

I have read about 1 that pushed 5K RPM. Chucked a rod on it's way home.

 

i dont need to just wondering ,and if i do step on it ,it farts and sputters than does well
i have new glows and injectors and new ecm

 

ive seen a few 6.0 hit the 6k mark all while holing the key in my hand. lmfao. I know why them call them runaways.

 

Who got to pay the bill for those events?

 

hahaha--scary as hell isn't it???? I've seen some of those old 4020 JD's with the mechanical injection pumps have a runaway. Only way to stop them was shove a rag in the intake and hope they ran out of air before they ventilated the block.

 

the first one scared me after that. its like emmm ok. turn key off. open door , get out, close door and walk away.
if it lives it lives, if it dies it dies.

 

you oughta hear an 8v92t run away on its own engine oil. its the most horrible sound you'll ever imagine, until it quits.......suddenly.