Injection timing truck norris cam LY6 e38

[ns158sl]

The more i learn the more there is to learn lol. Anyone know of a program i can use to get a Gen 5 BIN file off my truck by chance? i have a mongoose GM 2 cable.

poke around pcmhacker. there is a D/L there.

[Tech1340]

You heard it here first:
https://youtu.be/FmdJOOUUqQg
https://youtu.be/viLlBZVbeag

Hats off to Verlon!

Hats off to you Cringer, the new tool works flawlessly and really opened my eyes to how far off my EOIT really is on my 5.3 Tahoe with Chopacabra. Just a couple small tweaks and my idle and part throttle is so much better. The best part is the smell at idle is almost completely gone.

[Cringer]

Hats off to you Cringer, the new tool works flawlessly and really opened my eyes to how far off my EOIT really is on my 5.3 Tahoe with Chopacabra. Just a couple small tweaks and my idle and part throttle is so much better. The best part is the smell at idle is almost completely gone.

That is great to hear! Do you happen to have the cam specs with valve timing events for that cam?

[Balakayt.]

What are yall using for filter on the EOIT PE histogram?

[Cringer]

What are yall using for filter on the EOIT PE histogram?

Logging IPW? I just use where Commanded EQ < 1.0 for PE. And Commanded EQ = 1.0 for CL.

[Balakayt.]

Logging IPW? I just use where Commanded EQ < 1.0 for PE. And Commanded EQ = 1.0 for CL.

Perfect. I assumed that was what i needed but just wanted to make sure. i started second guessing myself. thanks.

[Tech1340]

That is great to hear! Do you happen to have the cam specs with valve timing events for that cam?

It's similar to Truck Norris. I have the specs @ .050 and used the calculator you provided to find the following @ .006. I did have to round to the next degree up because they all calculated as half degrees.

EVO:68
EVC:28
IVO:28
IVC:60

[Tfoggy]

What did you actually end up with your EOIT Table ???

[bassbuster0303]

I have not ran the truck since cringers suggested settings I?ll update in the future.

[cessnageek]

Thanks for the work on this, Cringer and Verlon! Excited to learn about this and give it a shot. Also, LOL at the "So you bought a Truck Norris cam?" button in the EOIT tool

[bassbuster0303]

truck ran good wit the new tune cringer unfortunately I think my ecm is also fried{like my tcm} got the new tcm in and programed fired up the truck and when everything started getting up to temp it freaked out and lost communications to all modules and died cleared codes and fired it back up and it dies in reduced engine power. has anyone else expirenced a dead e38 but only when it warms up

[bassbuster0303]

in a slump right now guys the build has been tough on me and ive been so excited to learn to tune but all these setbacks killing me thanks for the help on EOIT cringer your settings definitely cleans up the smell

[04silverado6.0]

May be odd but ive seen people put the wrong battery on with the terminals opposite and the positive hitting a ground on the firewall killing several electronics.

[04silverado6.0]

Another recent one was a shorted transfer case actuator.

[bassbuster0303]

definitely i was installing my dipstick and accidently hit the starter bending it for headers... it is a headache i hope the ecm is my last to replace

[04silverado6.0]

I did just arc a whole side of an exhaust on a starter. Luckily all is good with the car. Good lesson ill never forget.

[Xguardian]

Given the input:

.050" Duration: 212/224
LSA: 107.5
ICL: 106

We calculate:

ECL: 108.5
Adv: 1
Overlap: 3

Then we calculate the valve events for .050" to be:

EVO: 40.5
EVC: 3.5
IVO: -.5
IVC: 32.5

Then we assume the ramp rate for most LS cams to be 25* for opening and closing (50* in total), so we can calculate the .006" duration:

.060" Duration: 262/274

Then we calculate the valve events for .006" to be (use the .050" events and add 25* to the opening events and add 25* to the closing events):

EVO: 66
EVC: 29
IVO: 25
IVC: 58

Then we find the all important number for end of overlap (don't spray fuel until/after):

360 + 29 = 389 Boundary degrees

Assuming you want to zero out the N. ECT table and use use the Boundary table...

1) 580* Boundary Angle works great for most aftermarket performance cams for high RPM areas (starting from say...4000 or 5000 rpm up to 8000). However, you will need to account for the -7* Intake Cam offset and that means your Boundary will be 587*
2) For idle RPM, you will need to add your IPW in degrees to 389* to calculate the Boundary. Assuming your IPW is 2.2 ms, at 800 RPM idle, that comes out to 11* IPW in degrees. 389* + 11* + 7* = 407*
3) For Mid RPMs you will need to blend/interpolate the idle Boundary from 407* to 587*. You will need to experiment here for throttle response, popping, and fuel trims.

Note:

The 7 comes from a hidden table that Verlon found relating to OS's that have a variable cam. When the cam is parked, it pulls 7 degrees out.
If you have an OS that never came with factory variable valve timing, then you can ignore the 7 (assume it is zero).

Tuning:

• This is needed since we are assuming a 25* ramp rate.
• There is also push rod deflection and lifter plunger compression that need to be accounted for.
• Experiment by moving the Boundary lower (sooner SOI) and higher (later SOI)
  
  • CL you want lower fuel trims, no fuel smell, good throttle response for sharp pedal movements, and no popping
  • PE you want richer EQ on the wideband and a faster timeslip!

https://www.summitracing.com/newsand...ing-calculator

Attachment 153165

Here is an example of what I mean. This is a starting point for you and by no means to be considered perfect/done/tuned!

Attachment 153932

Am I correct in assuming that all of those numbers would be with in at least standard deviation or close on a 5.3 version with same cam?

[Cringer]

Am I correct in assuming that all of those numbers would be with in at least standard deviation or close on a 5.3 version with same cam?

The cam events are the same no matter the engine displacement. You may still have to experiment to to find the best injection timing to utilize the peak piston velocity. YMMV.