LB7: LB7 alter fire cam injector wiring

[moparkxracer]

price

the cam is expensive I think 1400, but they are claiming no one has broke a crank with the alt firing order. unless someone on here wants to chime in on that....

What's the price tag on this cam?

 

[03spoolindmax]

the cam is expensive I think 1400, but they are claiming no one has broke a crank with the alt firing order. unless someone on here wants to chime in on that....

Just when i think I have everything to complete my build. Im still another couple grand away :roflmao:

 

[DPC]

That's fine, my setup is a mix of all the years.. Thank you for the help

FICM diagram attached. Forgive my scanning abilities.:thumb:

 

[moparkxracer]

thank you

I appreciate it.

FICM diagram attached. Forgive my scanning abilities.:thumb:

 

[BHoward6.6]

While were at it, for LBZ.


INJECTOR - PIN - WIRE COLOR - CONNECT#
2 - A4 - light green/black - C107
5 - B7 - tan/white - C107
----------------------------------------------------------
8 - A5 - dark blue/white - C107
3 - B6 - pink/black - C107
---------------------------------------------------------
6 - A5 - yellow/black - C108
7 - B5 - orange/black - C108

 

[bluessmax]

I can change the firing order with tuning if need be... That's what I'm doing on mine for my cam from SoCal.

 

[moparkxracer]

Are they ever really done...

I know the feeling, I have been "upgrading" since the build started. I can't wait to get it running.

Just when i think I have everything to complete my build. Im still another couple grand away :roflmao:

 

[MAXX IT OUT]

I can change the firing order with tuning if need be... That's what I'm doing on mine for my cam from SoCal.

That would be the simplest solution, since the engine will need tuned anyways.

 

[bluessmax]

That would be the simplest solution, since the engine will need tuned anyways.

Yep exactly, that is my thinking.... As though it came from the factory that way!

 

[BHoward6.6]

I can change the firing order with tuning if need be... That's what I'm doing on mine for my cam from SoCal.

Can you manipulate the firing order on all years/generations thru tuning?

 

[DPC]

Yep exactly, that is my thinking.... As though it came from the factory that way!

What system are you using to change the firing order? I did not see a parameter in EFI to change the firing order.

 

[bluessmax]

I'm doing it outside efi with my hex editor like I do on the LML stuff.

I have LBZ-LMM-LML currently mapped with firing order. I added the table into efi, however, locating it was in a editor.

 

[DPC]

I'm doing it outside efi with my hex editor like I do on the LML stuff.

I have LBZ-LMM-LML currently mapped with firing order. I added the table into efi, however, locating it was in a editor.

How can I add the table to my EFILive to change the firing order for a LB7?

 

[bluessmax]

How can I add the table to my EFILive to change the firing order for a LB7?

Unless efilive makes it public it likely won't happen... I'll see if I get a chance to find it in lb7/LLY. Haven't looked in it yet. I'm familiar with Bosch at this point but the Delphi I have not dug too much. Should be easy though in comparison to Bosch.

 

[05_LLY]

Unless efilive makes it public it likely won't happen... I'll see if I get a chance to find it in lb7/LLY. Haven't looked in it yet. I'm familiar with Bosch at this point but the Delphi I have not dug too much. Should be easy though in comparison to Bosch.

This would be awesome!!

 

[DPC]

Unless efilive makes it public it likely won't happen... I'll see if I get a chance to find it in lb7/LLY. Haven't looked in it yet. I'm familiar with Bosch at this point but the Delphi I have not dug too much. Should be easy though in comparison to Bosch.

Have you had a chance to mess with the LB7/LLYs? Thanks.

 

[Dmax87]

Curious guys, what's the benefit to an alt firing cam?

 

[MAXX IT OUT]

Curious guys, what's the benefit to an alt firing cam?

Keep from braking your Cranks at high powers, by more evenly spreading the stress out over the entire crank.

 

[MACKIN]

Curious guys, what's the benefit to an alt firing cam?

You have lots of reading to do.

Start here
http://www.duramaxdiesels.com/forum/showthread.php?t=49189&highlight=Alternate+firing+order


Then search Alternate firing order

 

[DMAX497]

With the new wiring of the harnessing the lbz. Which cylinder would read for each injector off a scanner? Would they switch because of the re wiring?

Which cylinder is which now because of the AF cam?

Thank!!!