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The camshafts are linked to the crankshaft via the timing chain, so whether you're at idle or 7000 RPM the cams (and valves) will always be in the same position relative to the crank (and pistons)...

You'll probably only need to use one set of tables (low, med or high), depending on what your baro/atmosheric air pressure is; the setpoints to determine when a table is used are also adjustable -...

Have a tune file you can post? I have a V6 Camaro, 6L50 trans, so may or may not be able to help, but it shifts past 7100, so maybe I can compare, might have a table or two that you don't.

Interesting.

Does CL mean centerline? If so, the exhaust cam centerline at home position (VVT at 0 degrees) is ~72 degrees ABDC, or 108 BTDC. The exhaust cam can only retard so I wouldn't be able...

Sorry, just remembered that Mace advertises the lift as "standard" (which I take it to mean stock?), but via email they told me that the valve lift is 0.4400". I think I measured the Mace cam lobes...

https://forum.hptuners.com/showthread.php?103826-Question-About-How-Spark-Timing-Adjustments-Work

Are you referring to rocker arm ratio? If so, I think it's listed as that in the manual; don't have it in front of me but I believe it's 1.65:1 which I guess also would make sense (0.4252"/0.25669" =...

Unfortunately I didn't do much logging before the cams, but I did find one log that I sent to my original tuner (had same intake/exhaust as now but no cams) and under similar conditions (similar...

I've spent many hours looking for the LFX cam specs but never found them (they're not even in the GM manual), but did find LY7/LLT specs and then used them plus the exhaust cam card from Mace to...

See https://forum.hptuners.com/showthread.php?105356-Went-back-to-stock-tune-starting-over for a real quick summary I wrote up recently; should help get you started.

Definitely use lambda to take...

When I first started tuning my LFX I failed the MAF to tune SD first, but ended up realizing it was just a waste of time and tuned both at the same time. I still have some notes, however. I think the...

Not sure if the tables would be the same as the LFX, but my tables are [ECM] 3003 for High RPM Disable (value 4000) and [ECM] 3033 for High RPM Re-enable (value 3900).

FYI, not sure if you're...

Tuning an LFX (3.6 V6 DOHC) but posting this here since it'll get more views.

Awhile back I installed Mace cams and within a few weeks got the P0420 code (hadn't done any tuning at this point and...

Another update.

Still haven't gone to a dyno yet but plan to soon - been busy enjoying the summer while it's here.

Also decided not to bother with tuning 93 since some of the stations I...

You have two throttle position channels logging. One is always 0% and the other (SAE) is the correct one. The chart appears to be averaging the two together, hence why the chart always shows half of...

May just need to create a service ticket and ask HPTuners to look into this, maybe they can unlock for you. Not everything is available for every ECU but they can enable/find stuff on a case-by-case...

Try to make your driver demand tables more like this (your numbers will differ; this is for an LFX V6):

135792

Start with fueling, MAF first. If you have access to a long, quiet, somewhat...

Got a picture?

Seen something like this happen when I was logging multiple channels of the same thing (throttle position) to see how they differed, so if you have multiple channels of the same...

Full throttle shift RPM for 4 to 5 shift is 5900 RPM (and 131 mph).

Transmission > Shift Scheduling.

The LFX engine shows a lot of knock with the factory knock sensor sensitivity and I imagine your engine would be similar. I originally had a tune done by Overkill and he jacked up the sensitivities...

Can't edit any of the cam tables other than the base table (both cams at 0); to change the other tables you'll have to change the VVE coefficients directly.

Not sure why you wouldn't be able to...

Try logging every channel you can find that may (or may not) represent an AEM gauge/wideband sensor. In my case I'm using AEM's 30-0334 but even when logging the channel for that gauge it didn't...

Need to convert flow to mass. 0.45 L/h divided by 60 gets you litres per minute, dividing that by RPM gets you litres per revolution, multiplying that by 1,000,000 gets you mg (total fuel mass to...

No problemo. In my case I set both High Baro cam tables and WOT tables to 0. But whatever works.

I didn't know to lock out the cams either - even after spending who knows how many 100's of hours reading the forums I didn't see one post mentioning to do so, but one day it just came to me (and...