Turning Higher RPM

[hotram03]

What benefit do you get by being able to turn a higher RPM than factory set RPM, I am modified(read truck profile), do you need to replace your valve springs so as not to float the valves, at say a certain RPM and up. Like 3400 and up you would need heavier duty springs. I've noticed that with my new TST R49ap I have no rev limiter and the truck keeps pulling well on up to 3600 RPM and more, I did it once and didn't really mean to, I just dont want to hurt anything, someone smarter than me please... ... ...

 

[betterthanstock]

Do you have a dyno sheet? There is no benefit going above the peak HP rpm.



I read the old 12V used to have a torsional vibration around 4000-4500, and you had to get quickly to 5000 to prevent that from breaking your crankshaft. I don't know how much of that is true, but with your fluid damper that should be a smaller problem than with the rubber one.

 

[jwilliams3]

Do you have a dyno sheet? There is no benefit going above the peak HP rpm.



I read the old 12V used to have a torsional vibration around 4000-4500, and you had to get quickly to 5000 to prevent that from breaking your crankshaft. I don't know how much of that is true, but with your fluid damper that should be a smaller problem than with the rubber one.

Higher rpm's are typically for competitive purposes.

 

[LesStallings]

You might want to browse the Competition Forum:



https://www.turbodieselregister.com/forums/forumdisplay.php?s=&forumid=33