LML EFI Flash. Kory Willis

[jkholder09]

kory,
were you able to get the table defined in the lml that shows the difference in actual vs desired rail pressure and the allowed amount before they limp.
I know its not much and why a dmax falls on its face when they get too far apart.
I am kinda thinking since the ford 6.7 doesn't have it thats why they are scoring bores in the cp4.2 pumps and gm lml are not.

 

[bluessmax]

kory,
were you able to get the table defined in the lml that shows the difference in actual vs desired rail pressure and the allowed amount before they limp.
I know its not much and why a dmax falls on its face when they get too far apart.
I am kinda thinking since the ford 6.7 doesn't have it thats why they are scoring bores in the cp4.2 pumps and gm lml are not.

Yes, I now have full control over threshholds and the pressure system.. Reg(s) etc.

 

[Dirtymaxx03]

Yes, I now have full control over threshholds and the pressure system.. Reg(s) etc.

Kory, would you say the LML motor will be the most powerful platform out of the duramax lineup of engines?

 

[jkholder09]

Yes, I now have full control over threshholds and the pressure system.. Reg(s) etc.

Awesome lets dual fuel one and see how well the bottom is built:thumb:

 

[emiller3]

I'm willing to bet its coming

 

[cwmeaux1]

^^x2 kory u did u get 72 on ?

 

[jkholder09]

I'm willing to bet its coming

adding a cp3 works on a ford 6.7.
just saying biggest deal is the cp4 lines are fine thread, old cp3 lines are coarse.
other than that its a box a pulley and a pump

 

[FC5452]

There metric which is easily overcome. Coupling the two together is not an issue, it's tuning it In is where the fun starts.

 

[jkholder09]

The tips are flared different and the cp4 feeds each rail independently with no crossover.

 

[03_DMAX]

Theres already one with dual pumps on it. theres a thread on df about it

 

[jkholder09]

the only thing I could find was an lml to lmm conversion thread

 

[custom8726]

IRC it was a II thread

 

[bluessmax]

H&S is testing the dual pump stuff... So as always we just try to do things a little different and I think the market can grow even quicker with us testing something different on it. I can assure you we will not lack fuel by any means. Should have enough to scatter engine parts all across the land. Lol!

 

[FC5452]

Different is always nice, single pump for each rail seems intriguing

 

[x MadMAX DIESEL]

If you gotta have custom lines built, might as well bridge both the rails together.

Sent from my PC36100 using Tapatalk 2

 

[paint94979]

Different is always nice, single pump for each rail seems intriguing

PPE's dual pump kit for the LLY runs one pump per rail.

 

[FC5452]

PPE's dual pump kit for the LLY runs one pump per rail.

Hence me thinks that's the way to go. Though I am still reading up on this pump. Still even if it would be, the tuning would be needed to time it all together.

 

[x MadMAX DIESEL]

What if one pump dies? Or just gets alittle weaker?

Sent from my PC36100 using Tapatalk 2

 

[FC5452]

Good Point Ben, Whats interesting too me is why Bosch decided to do it with the 4.2. One Feed per rail. I agree a bridge would be logical so the IP's would share the burden. Just with what I have been playing with on my own pump, keeping a continuous supply of fuel on the low side seems to improve the efficiency of delivery to the rails. Pure speculation on my part, for this poor ass boy doesn't have a tech 2 to watch things

 

[duratothemax]

no, guys, jkholder09 is just being an idiot and feeding people misinformation once again.

the LML CP4.2 does not feed each rail independently. Think about it; feeding each rail independantly would be a terrible idea on so many levels. How would you be assured that each rail is running identical pressure? You would need twice as many fuel pressure regulators, two rail pressure sensors, etc...

If you want the illustrated version, here ya go. The CP4.2 has two outputs, yeah, but they both feed the passenger side rail, and then there is a crossover pipe to the driver side rail.