Gen 4 Timing Tuning, Dialing In The Spark Advance For Max Power! 

Thank you for your dedication and hard work helping everyone understand what's going on. Very informative!

Thanks for keeping up the outstanding videos, they are very much appreciated!!!

Great video. I have been trying to work on a partial throttle popping sound I was getting and could not figure it out until saw this video. And then I realized it was my ECT table.

Thank you! Everything in this vid worked like a charm.

GRG! Showing us there are awesome people in this world hoping to share good information just to help others! Thank you for the time and dedication you show to the garage! ( I know how much time I spend just watching ) I my cam is in route and so is my GRG MERCH! I’m sure the car will run awesome and be safe thanks to the fundamentals I have learned mainly from here!

Great info, Thanks!

Thanks for the great work mate, Your channel rocks it.

Thank you for these explanations I hope to explain about gen v and what is the difference between gen iv in hptuner

Thanks man building some confidence to fix my tune thanks!

Thanks for these videos.

I have hp tuners and I have been watching this channel just learning everything I can.

Thanks for all your great videos. I already learned alot from watching them. How do you smooth the timing table if you only adjust certain areas? Greetings from Switzerland

Thanks for teaching us how to achieve more power but how to safely use it as well. ABT!!

This channel should have 1 million plus subscribers and likes! Thank you for being a great teacher and sharing such great knowledge!

Again, another great video. I was taught the same way through the tuning school. Great information and well put together. Although I personally think you should have touched base with logging real knock vs. fake knock. I was tuning a car that was giving tip in knock, Found a bad engine mount. Also had a exhaust hitting on a different car causing fake knock. Maybe this could be an idea for a new video... Thanks for the time you've spent on these videos.

By the way still watching and loving every min of it!!!

thank you great video

2 years later ..over 58,xxx 😎👌

I got MASSIVE power gain on my 08 3900 V6 disable iat spark table and set high and low octane tables to 16.5 degrees from 3400 upp and boom have fun

Hello GRG I am posting my comment on this video. By the way thank you for everything that you do. Because of you I have a 14 sec 6cyl Camaro N/A

Can you make a video about false knock? and how it shows on the graph.

Just bought another t shirt and sticker excited foe it

New to hp tuners, Just getting the head around the different tables and the way the factory has gone about setting up These tables, The car is a 2005 v6 3.6 GMH or Aussie Gm, Holden Commodore , with the alloytec 3.6 Ltr. It’s tune was horrible , car 280,000 klms, it had bad narrow band sensors, Basically , ran off the narrow band sensors, 14.7 almost every where Until after 75% load and 3800 rpm, at that point went straight to 10.5-1 afr. Using a Lm2 innovate wide band hocked up To a Mpv12+ pro hp tuners unit. Two days of watching your vids, I have 12.5 full load, 14.7 CL. And it now progressively goes down to 12.5 afr as you increase load. Until watching this video, all I have done is adjust base map correction tables , to lower KR numbers Once sorted I played with the Kr percentage table a small bit, until I am having very little KR , logging up to a max of -2 degrees of KR Basically in the cruise area of the map. They have two base ignitions maps , depending on how the inlet cams have advanced. I really didn’t want to mess with those maps. Anyway great work, as I get some more seat time with Hp Tuners I get more confidence, The way your setting up the scan tables makes tuning very easy. I normally preference live tuneable systems , just didn’t want to fit a aftermarket ecu to a run around 2005 model car. One I hope to turbo charge, for hill climbs , some track work and 1/8 mile drag racing. Nothing crazy, 14 psi, intercooler just a fun car to drive and some to fix when it breaks, hobby car to Keep me occupied in retirement. My background ground is in performance engine building and tuning. Engine and chassis dyno’s, cars and bikes, retired in 2010, Came off a drag bike at 100 mph, oil on track that was missed by track officials. So not built or tuned any thing since 2009 . Loving your videos .

Dear Goat I had swap my car engine blocks only from 4.8 to 6.0 vortic gmc , subsequently i had engine sound low torque low speed Did spark settings play a role here

Im interested in getting the timing advance while cruising to its most efficient point for complete fuel burn and hopefully best fuel mileage. I thought i remember reading somewhere a while back about using engine vacuum for tuning this. Thanks a ton for all of the videos...and I dont think Ive ever caught your name in any of your videos.

I think it's cool you're putting these videos out but for others learning be careful. Timing is something you really need to be careful with. Also know that raising your timing and depending on knock sensors is a very bad idea. Things such as long tubes, thin short tubes, cams etc effect how the knock sensor reads. It's safest to use something like knock ears to listen for real pinging or knock otherwise you could slowly be killing your motor. Also spark or cylinder airmass is a calculation. If your VE / MAF are not 100 percent dialed in you will log knock in the wrong areas. Also, your timing won't be referenced correctly. Their is way more too it than adjusting your timing up and backing it down. Using this method for stock unmodified motor is okay to find problem areas but again, be smart before raising your timing. Virtual Dyno could be used if you don't have access to a Dyno to help find best timing too. Goat Rope - hope this doesn't offend you as I don't mean it too. I've seen a lot of people make poor decisions when it comes to tuning.

I noticed after adding some degrees of timing I'm not seeing knock yet being conservative however I think my long term fuel trims have leaned out a bit... douse that sound right? If so should I stop and go do some VE and maf tuning or is there another route? Thanks!

Do you work on spark and knock before or after the maf and speed density tuning?

Will you be doing some SCT software turning down the road?

What do you do if you’re dealing with something that doesn’t have a knock sensor? I know this is a different ballgame but it’s overall the same concept. I have a Honda sxs pioneer 1,000 to be exact. I have a Dynojet with power core software to make custom tunes. I want to play with tuning timing and tip in pw for more bottom end performance.

4k subscribers? A year later, almost 38k subs! Great work!

You ever zero out the burst knock?

If Adjusting Timing Wouldn't You Add 2 Deg Where Your Working , Log It, Subtract The Knock You Run Into And Then Again Add 2 Degrees Timing In Area You Are Working In. So That You Bring Up Your Timing Every Where. Then Pull 1 Deg In Area From "Bleeding Edge" Of Timing For Safety. Once It's Dialed In You Should See Knock In Every Cell You Hit Correct?

Hey can you zero out the Catalytic heating table? If you have you catalytic converter deleted

Love the content GRG #IMYOURNUM#1FAN

Do you know if this program works also for Honda F12x Jetski's?

When I add one degree of timing to my '17 C7 Stingray (LT1) the car starts pulling timing like crazy. I added the degree from 0.33g @ 1k RPM all the way to 1.28g @ 8192 (I know it doesn't hit these cells but just went all the way with it). With the factory tune it usually doesn't pull much timing. Sometimes 2 to 3 degrees from 5k to 6500rpm... But when I add a degree to the table it starts pulling 7 degrees and sometimes more. It hits 9 - 10 degrees of KR. I messed with some other tables such as the *Octane Learn Up* and *Burst Knock Retard*. I've also tried leaning out the PE table a bit. The only mod I have is an Attack Blue air filter. The weirdest thing is... if I put the timing table back to normal, the car still pulls a ton of timing BUT if I flash back to the factory tune, it goes back to normal and barely pulls any timing. It is very disheartening. I am logging all of the spark advance PIDS (ECT, IAT, EGR) and none of them are adding anything. I tried zero'ing the tables out too just to make sure... What could I be doing wrong? I can't figure out why the KR is so extreme

hi guy, in my case tahoe 5.3 the KR does not work, when opening VCM this window does not show any value! can it be disabled?

Can you please help me i did exactly what you was saying but when i logged a drive i noticed that im only getting data at the row what is the issue

Thanks for ur vid bro,i just came back after recording some datalog for my yukon. I just wanna ask how can i get rid of knock memory ?

In ur videos u title tuning different generations of chevys. Are the concepts still the same or does it change from generation to generation

A bit late !!! But what about the « fuse pull » on gen 5 Camaro ? Myth ? How to tell your car run on low octane table ?

I have a 06 gto 6speed and can’t get my maf error table to show anything. I do have the wideband hooked up and fed into scanner. I have watched your video at least 50 times. It has a cai, no cats, headers and mid pipe, tick sns stage 2 cam, springs, pushrods, and very frustrated. Please HELP?

How much of this can be applied to a Gen 3 Hemi?

I did a dod delete an vvt delete on a 2013 5.3 but it is hard to start how do I fix the problem

I had to use MAF cylinder airmass to get it to show the knock in all the rows. If I used just cylinder airmass, only the top row would populate. weird. I'm a MAF tune.

Hey. I like your videos. They helped a lot. However. I seem to have a few different parameters and some issues I can’t find info on. Im trying to find out if my throttle is actually opening all the way and staying open. Another issue is I have converter flare when I touch the throttle. I also have some shifting issues that it will hit the rev limiter before I shift. Anyways. If I send you my tune and a bunch of logs would you be able to go through them and share with others? I have a twin turbo 2017 5.3 silverado with meth injection. Thanks

When tuning timing, are you still in open loop, or is this done after all maf tuning is done and 02 sensors are reenabled?

KOOL

Is there a way I could pm you? I’m having trouble getting any readings for cylinder airmass, it’s logging everything in the first column for the cylinder airmass.

Like u said "Hit the like button and you will learn to tune"....its working. Question... '09 G8 GT my HIGH OCT table has "SPARK AIRMASS not cylinder airmass like ur table" theres no PID for spark airmass, is cylinder airmass the same? thanks in advance

First off great videos, and thank you. I have bring my tunning up and up this is after calibrating the maf for a otr air intake. The problem is say at giving gas up a hill but anyway must be a certain load 50% is where it was at on scanner I run real lean and little bit lean just cruising at say 60. Any help would be sweet. It was doing it the tune before I just added timming?. Thank you

I have gen 4 GMC ,6.2 E38, my Main Spark set to 18 at wot but my scanner show me 28 ! with bout 12d Knock ? what is my issue ! is my engine going bad ? or car ECU PCM> my truck is stock PLEASE I NEED HELP

Do you go back and smooth the graph any after subtracting from area's. I logged and subtracted several times but it gave me some peaks and valleys. Should I go back and smooth the peaks down to the valleys. Where I subtracted timing and smooth it out?

Thanks for the Video! I am a complete newbie. My High Octane Table shows Spark Airmass instead of Cylinder Airmass. There is no option to log with Spark Airmass. Are these the same thing? I logged Cylinder Airmass and it only populated data into the first row (0.08g).

Im trying to do the graph on my scanner for timing advance but on my high octane table its showing my row axis it read spark airmass instead of cylinder airmass like yours, how would i change my row axis reading on my high octane to cylinder airmass (g)?

I noticed you didn’t touch basis on fuel? Is it safe to add timing without adding fuel? I understand when doing street tuning you add timing till knock appears, but when dealing with Flex Fuel it takes a lot for it to “knock” in fact it’s possible to lift heads before it knocks. Is there away to tell which places that the heads are likely to lift with too much timing?

@1:34 How to tune in a Goat Lope? I want my truck to goat lope! 🤣

Now from 0-600 rpms starting at 0.48g of air down to 1.36g .... Do we jump that up out of the negatives if we are running a stall. To help with the low end?.... Thanks for all u do BTW

Hi just a couple of questions does a larger cam typically require less timing than usual ?would subtracting 5 on the hole table be enough to then do some logging and modifying or would you go less ? and while in idle the timing is going up and down is it because the cylinder airmass and rpm fluctuations would you say put 15 deg in those cells around idle ? Thanks

I have a 14 silverado 5.3l and im getting knock in my low octane stock tune

Do you save tunes on multiple hard drives or thumb drives just in case your laptop breaks ?

Quick question I just installed a new intake manifold and a 102mm tb. Tuned for the maf and started tuning for knock. But when I let off the gas the rpm hangs and the car really struggles too decel, same thing at idle as well hangs at 1200rpm then drops too my set idle speed. Could this have anything too do with the high octane/low octane table? Read a ton of forums and I can’t figure it out.

I know this video is a few months old but when I'm in the eng tab and looking at timing I dont have all the options as u did? Like the high/low octane and so forth? Why is that?

So I have a question can you do a walk through on cam tuning at idle and idle with ac on?

Is it best to reset ltft every time you make an adjustment for the timing?

one question if i may now when tuner says that we are running 20* of timing is that relative to the increase to stock timing or actually running 20* of timing ?

Can i use engine load instead of cylinder air mass? That is how my graph is set up for my vvt high feature in a 2010 v6 camaro

So i'm not sure if this question has been asked yet but, i'm building the histogram for a 2015 Camaro 1le and my timing tables are RPM vs Spark Air Mass. Which parameter is the correct one to log the date on the row axis?

you added 2 degrees and then took out 2 degrees, does that mean timing tables are already maxed out from factory? if so, what other ways to make more power?

Does this video work with Gen 4 6.2 vvt timing. I'm about to try it. Just wanna make sure it will work.

Keep making these videos and tuners will be out of business by the end of the year 😂

What about smoothing and interpolating the timing table?

So what do you do with the timing advance logs?

For some reason I have gone and set up my scanner per the video for the histograms and it does not graph. It only fills the 0.08 g row with "0.0". Haven't been able to figure out what I did wrong. It was working at one point and then wasn't.

Hey man I’m only getting readings in the bottom row 1.32 of all of the rpms but nowhere else on the table, any idea?

Ethanol burns faster than gas, not slower. If you have an engine that is not knock-limited on gas and start running e85 you will need LESS timing than before. Love the content as always

Should the histogram be on average or max?

@4:16 I know you know what you meant to say... but you said "pre detonation" but you meant to say "pre ignition or detonation". Just for the possibly confused newbies! Lotta terms to learn.

How can I make backfire?

Can you shed some light on what you where doing when you added 5 to cell hits when laying out the spark retard table.

This guy is completely wrong don't listen to him... *sneaks away to sell $400 tune*