Injector pressure

Kind · Aug 15, 2015

Does anyone with experience know how much rail pressure our injectors can handle? And what would be worst case scenario if one was to go past those limits?

Stroked777 · Aug 15, 2015

I remember talking to hassler about his common rail 7.3 and said he was running 50k?!? An that was 2 k16s and 6.4 injectors with machined plugs to fit in the head

Groomzybanshee · Aug 15, 2015

We've ran 28k. Haven't tried any higher yet. Untill we get on the dyno.

Kind · Aug 15, 2015

Good to know guys!

I know my current single pump will have a hard time keeping up without really cutting back on duration. But i'm gonna play around.

Are you guys keeping the timing the same or retarding it some?

madman1234509 · Aug 15, 2015

I thought all of this was mentioned before, and the end result was they didn't find much benefit in going over 24.5 -26k in these trucks? Don't quote me though... I don't think upping presure is going to do anything for you.

ckrueg · Aug 15, 2015

My max commanded pressure is 26k but I never see anything above 24.5-25k. Is there a reason why it won't go higher?

Powerstroke Man 6.4 · Aug 16, 2015

ckrueg said:
My max commanded pressure is 26k but I never see anything above 24.5-25k. Is there a reason why it won't go higher?

The stock pump can't maintain the commanded 26K that's why you won't see 26K.

Kind · Aug 16, 2015

madman1234509 said:
I thought all of this was mentioned before, and the end result was they didn't find much benefit in going over 24.5 -26k in these trucks? Don't quote me though... I don't think upping presure is going to do anything for you.

Yeah you're right about it being mentioned before and I'm apparently really good at ignoring the search feature.

However there is a cummins running over 30k that races and I doubt they are doing that just because.

ckrueg · Aug 16, 2015

Powerstroke Man 6.4 said:
The stock pump can't maintain the commanded 26K that's why you won't see 26K.

Even on a 1.2ms tune?

madman1234509 · Aug 16, 2015

Kind said:
Yeah you're right about it being mentioned before and I'm apparently really good at ignoring the search feature.

However there is a cummins running over 30k that races and I doubt they are doing that just because.

I Wasn't saying it implying you should use the search feature, was just thinking out loud

. I get what you're saying but the Cummins also has a completely different fuel pump and injection system. Kind of apples to oranges when compared to our siemens k16 system