EFILive tuned Cummins hits 5,300 RPM

[CIDRAUGHN]

Absolutely impressive. Huge thanks to all the EFI live guys, as well as the beta testers. The CR cummins world is about to change for sure, and be much more competitive. I cant wait for this to come out.

[zfuller123]

It has higher piston velocity (which depends mostly on stroke) than the LS1, you can see it in the graphs.

Piston velocity is blue graph.

Cummins:
2.5[in/rad] *555[rad/s] /12[in/ft] *60[s/min] = 6937.5 ft/min (peak)

LS1:
1.9[in/rad] *628[rad/s] /12[in/ft] *60[s/min] = 5966.0 ft/min (peak)

Thank you for this info! I've been meaning to get around to building a Cummins timing calculator but got stalled on finding / figuring the information i needed! Hopefully now that the info is found for me i can find some time to building one for people to use!

[joecar]

peak velocity = 2.0372[in/rad]
peak acceleration = -2.5404[in/rad²]


4000[rpm] -> 418.9[rad/s]
peak v: 2.0372[in/rad] *418.9[rad/s] /12[in/ft] *60[s/min] = 4267 [ft/min]
peak a: -2.5404[in/rad²] *(418.9[rad/s])² /12[in/ft] /32[ft/s²] = -1161 g

[joecar]

From the graphs:
- to convert velocity from [in/rad] to [in/s] multiply by ω,
- to convert acceleration from [in/rad²] to [in/s²] multiply by ω²,

where ω = 2*pi*rpm/60 and has units [rad/s].


Note: in the graphs R is half stroke.

[Chevy366]

That's great , glad to see this happen.
Cummins turning 5300 rpm , WOW !

[Boost]

I've been bragging about this LOL who knows maybe I dabble into Cum ins a little since I'd rather do that and stick with the software than get into other programs to cover more vehicles. I've always had a lot of respect for the engines even though I've mostly slapped them around on the dragstrip. I know there are some out there...

[5.9cummins06]

12V cummins sled pullers have been running 5000+ for years.


and the rods are massive compared to the other 2

[ScarabEpic22]

Are they doing that on stock electronics? Stock ECM? Tuned by who, Smarty? That truck looks heavily modded.

[2007 5.9]

Are they doing that on stock electronics? Stock ECM? Tuned by who, Smarty? That truck looks heavily modded.

Efi tuned 5,000+ is on stock ECM.

BBD is a 13mm p-pumed 12valve...highly modified.

[5.9cummins06]

Are they doing that on stock electronics? Stock ECM? Tuned by who, Smarty? That truck looks heavily modded.

12V is all mechanical, no computers