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5.3L vs 6.2L V8


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9 minutes ago, Grumpy Bear said:

No we don't drive math books. But this world we live in is under the direction of the laws of the Universe those books only explain. Those law are not like the laws of men. They can not be violated. Your understanding or not agreeing makes zero difference to these laws. Fact is if they could be then  your truck wouldn't operate at all. Fact is any device is a collection of universal laws being worked out with a precision a human can't even imagine.  Obvious to me is you not only do not understand this, which is actually fine, but you have no wish to. That the case I have no reason to continue explaining. Good enough? Great! Then we're done here. 

 

 

You haven't actually made a point anywhere in there. Smoke and mirrors much? ?

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2 hours ago, SMW said:

I’ve owned (2) 5.3 Liters and (1) 6.2 Liter which I currently have. The only reason I am still with GM is because of the 6.2 Liter. If this engine was not available, I would be in a Hemi or 5.0 Ford. 

Hate to break it to you but the new 5.3L beats the new Hemi, (Go read car and driver article) and will hang with the 5.0L.  Plus, the amount of issues the 5.0L has good luck!  Ford has that thing so high strung right now, it's eating oil and munching timing chains like the cookie monster, but, hey, go ahead be my guest.

 

The 5.3L is a fantastic motor that gets excellent gas mileage, tows very well below 6k lbs, and if you want more power, get one that is E85 compatible, My 2017 was and I could take my step dads Ecobust or any Hemi all day long. They love that fuel. 

 

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37 minutes ago, TNTSilverado said:

Hate to break it to you but the new 5.3L beats the new Hemi, (Go read car and driver article) and will hang with the 5.0L.  Plus, the amount of issues the 5.0L has good luck!  Ford has that thing so high strung right now, it's eating oil and munching timing chains like the cookie monster, but, hey, go ahead be my guest.

 

The 5.3L is a fantastic motor that gets excellent gas mileage, tows very well below 6k lbs, and if you want more power, get one that is E85 compatible, My 2017 was and I could take my step dads Ecobust or any Hemi all day long. They love that fuel. 

 

 

Not saying you're wrong, but as the owner of a Hemi and a guy who has tested the 5.3, I'm quite sure the hemi is more powerful all around than the 5.3. If you have a link to that article I'd love to read it.

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Hate to break it to you but the new 5.3L beats the new Hemi, (Go read car and driver article) and will hang with the 5.0L.  Plus, the amount of issues the 5.0L has good luck!  Ford has that thing so high strung right now, it's eating oil and munching timing chains like the cookie monster, but, hey, go ahead be my guest.
 
The 5.3L is a fantastic motor that gets excellent gas mileage, tows very well below 6k lbs, and if you want more power, get one that is E85 compatible, My 2017 was and I could take my step dads Ecobust or any Hemi all day long. They love that fuel. 
 

All of the new truck manufacturers and their motors have issues, the discussion is going with a 5.3 or 6.2. I vote 6.2 all day long as it’s got far more power with proven better mpgs. Again, I’m lifted and I’m getting 20-21mpgs on the highway doing 65, my stock 5.3 NEVER even got close to that.
In addition to Lucas Fuel Treatment, I even “sometimes” run 5gallons of E85 per tank mixed with premium fuel just to help keep it clean and gives a “Frito Lay” smell lol. It’s a very big difference between the 5.3 and the 6.2 and I’m speaking from actual ownership of both and not from insecurities. I’ve never heard anyone say they wish they bought a 5.3 instead of the 6.2 but you sure hear a lot of people saying they wish either they could’ve afforded or chosen the 6.2 instead of their 5.3.

If it wasn’t for the 6.2, I would’ve already be in something equivalent and as a matter of fact, I switch vehicles every 2years but love this engine so much, it’s definitely a keeper.

So, as I’ve explained my actual ownership of having had both, let’s just be honest and give credit where it’s due, the 6.2 out performs the 5.3 in everything but there’s nothing wrong with the 5.3 or the even smaller (cringe) motors as to each their own.





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21 hours ago, JimCost2014 said:

Yes, you have a Syclone, why did you buy it rather than a normal S-15?

The Syclone is a fun truck. It shares a platform with the S-15, but it is very different. While the S-15 is a small work truck, the Syclone is in no way practical. It has a 500 lb payload, can't tow, and can't go off-road. It is meant to go fast, not work, it has different suspension, a turbo, drum brakes, an automatic transmission, and other modifications. The 6.2 and 5.3 are simply different engines in the same truck.

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15 minutes ago, Ferrari Eater said:

The Syclone is a fun truck. It shares a platform with the S-15, but it is very different. While the S-15 is a small work truck, the Syclone is in no way practical. It has a 500 lb payload, can't tow, and can't go off-road. It is meant to go fast, not work, it has different suspension, a turbo, drum brakes, an automatic transmission, and other modifications. The 6.2 and 5.3 are simply different engines in the same truck.

Very familiar with the Syclone, and it's brother the Typhoon, and what they are.

 

Guess my point is, sounds like you prefer something with some grunt and power, so rather than wondering if I should have bought...

I would just get the 6.2.

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24 minutes ago, JimCost2014 said:

Guess my point is, sounds like you prefer something with some grunt and power, so rather than wondering if I should have bought...

I would just get the 6.2.

I already have the 5.3. It has more than enough power to tow my boat, and I already have a Syclone for speed.

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1 minute ago, Ferrari Eater said:

I already have the 5.3. It has more than enough power to tow my boat, and I already have a Syclone for speed.

There's always your next truck.

 

Sorry, too many pages, did not realize it was a hypothetical question.

 

Good post thought, getting people all fired up, I like it.

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18 hours ago, Jonofmac said:

Oh my God. Yes. Excuse me for giving a simplified explanation for those that don't have degrees in electrical and computer engineering. First, it's called a piezoelectric crystal, not a piezocrystal. 

Yes, it's not a literal microphone, but it behaves in a similar manner, which is (to simplify it) convert combustion noise into an electrical current which can be sampled by a MCU's ADC. That vibration they detect is always present, not just during knock. Combustion is noisy.  

 

 

 

Have you personally tuned a knock ****** system? Because unless you have, you have nothing to stand on other than your (lack of) "knowledge". I know how these systems work and have worked with them with several large OEMs. Knock is not a binary thing, despite what you think. There is not only a pinging that the ECU detects. The piezoelectric crystal characteristics are tuned for a resonant frequency to make actual knock frequencies more sensitive than combustion noise (glorified band pass filter). Since knock is not a simple YES/NO, they actually can (and DO) estimate how close to knocking you are. The "noise" from knock, is a result of peak cylinder pressure happening too early, and creates a non smooth pressure waveform vs time (if you plot cylinder pressure through the cycle). This jagged edge of pressure creates the pinging you hear, however the knock sensors are sensitive enough to pick up smaller magnitudes of this and even the absence of knock (misfire detection, anyone?). They have several different thresholds uses to determine when knock has happened, which vary per RPM, and load, and even cylinder which are uses to determine the relative "volume" of the combustion. This is not up for debate, this is quite simply how the systems work. It is NOT just responding to knock which has already occured, if that were true, misfire detection would not work). I even attached some literature for you to show I'm not talking out of my ass. Yes, it is tuned to detect knock frequencies (that's the goal of a knock sensor), but they measure the knock level. Note that knock level is merely an amplitude of combustion noise for a given frequency, and this can range from none to full on audible pinging.

 

 

I don't care how you think these systems work, dude. Thank you for providing literally 0 explanation to how you think the systems work and proving you don't actually know. Go back to buying canned tunes. Please don't spread misinformation.

 

Sent from my SM-N960U using Tapatalk

 

 

 

 

 

 

 

 

 

 

 

 

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So armed with a bruised ego and Google you tried to show me up. Yawn. Funny how you are now an expert.  

 

Your original post is still false. It can't anticipate knock, the knock sensor picks up vibration after it happens. No ifs ands or buts.  I have tuned about a dozen vehicles, I've owned Hptuners for more than a decade.  But I'm sure you're the guy that's done more and seen more than ..... (Insert anybody). Lots of those guys in the internet.  

 

I wouldn't let you with a keyboard or wrench anywhere near my vehicles and hope no one else does.  

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5 hours ago, TXGREEK said:


All of the new truck manufacturers and their motors have issues, the discussion is going with a 5.3 or 6.2. I vote 6.2 all day long as it’s got far more power with proven better mpgs. Again, I’m lifted and I’m getting 20-21mpgs on the highway doing 65, my stock 5.3 NEVER even got close to that.
In addition to Lucas Fuel Treatment, I even “sometimes” run 5gallons of E85 per tank mixed with premium fuel just to help keep it clean and gives a “Frito Lay” smell lol. It’s a very big difference between the 5.3 and the 6.2 and I’m speaking from actual ownership of both and not from insecurities. I’ve never heard anyone say they wish they bought a 5.3 instead of the 6.2 but you sure hear a lot of people saying they wish either they could’ve afforded or chosen the 6.2 instead of their 5.3.

If it wasn’t for the 6.2, I would’ve already be in something equivalent and as a matter of fact, I switch vehicles every 2years but love this engine so much, it’s definitely a keeper.

So, as I’ve explained my actual ownership of having had both, let’s just be honest and give credit where it’s due, the 6.2 out performs the 5.3 in everything but there’s nothing wrong with the 5.3 or the even smaller (cringe) motors as to each their own.





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I wish my truck had the 6.2, but I didn't want the "options" that getting a 6.2 required for free, let alone the upcharge.  

 

You're kinda "that guy" though.  Everything I have is the best and that's why I have it kind of guy.  Non stop CST is the undisputed king of lifts because I have CST.  6.2 is better than everything because I have a 6.2. When researching lifts your posts kept coming up... My suspension guy said CST is the best so nothing else compares.  It gets old and trivial.   It's hard to believe any of your posts are unbiased

 

5.3 will get better mileage, there is no argument there on stock trucks. Now modded with big tires, yeah, I bet the 6.2 handles them better. Doesn't lug as easy and will stay in 4 cylinder mode easier. Especially since you're probably running 91+ octane, it will have less kr if any with big tires on a stock truck. 

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8 hours ago, the wanderer said:

 

You haven't actually made a point anywhere in there. Smoke and mirrors much? ?

I gave you a point of reference. You ignored it.

I gave the the equation.

You ignored that too.

Gave you the results.

You blew it off  

No surprise you don't see the point.

You don't want to!

D'oh Homer

 

Nothing wrong with my point nor my explanation

It was pretty eighth grade stuff. 

 

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So armed with a bruised ego and Google you tried to show me up. Yawn. Funny how you are now an expert.  

 

Your original post is still false. It can't anticipate knock, the knock sensor picks up vibration after it happens. No ifs ands or buts.  I have tuned about a dozen vehicles, I've owned Hptuners for more than a decade.  But I'm sure you're the guy that's done more and seen more than ..... (Insert anybody). Lots of those guys in the internet.  

 

I wouldn't let you with a keyboard or wrench anywhere near my vehicles and hope no one else does.  

Nice. So you're now resorting to personal insults instead of showing any data. I provided a snippet of how a piezoelectric knock sensor works because you were confused. I corrected your claims, buddy lol. My ego suffers no bruises from your unsubstantiated claims or personal insults. I actually am an electrical engineer with both hardware and software experience for embedded devices and frequently work with several large OEMs (I do more than just automotive).

 

To correct you trying to put words in my mouth, I never said it will anticipate knock before it can happen. I'm saying knock is not a binary yes there is knock/no there is not knock entity. I'm saying that you can measure the relative combustion volume/knock level and see if you're on the threshold before you get to full blown pinging. No, you won't exactly how far from knocking you are, just that you're at seeing higher combustion pressure rises.

You act like the only vibrations that occur in an engine are knock. You clearly lack the understanding of what knock is and what is causing this vibration. I explained it once but I guess it didn't stick...

 

To try to dumb it down more: as fuel gets ignited, pressure in cylinder rises quickly and this force pushes down on piston. This pressure profile varies greatly depending on when the fuel mixture is ignited (amongst other things). Too late, make reduced torque. Too early, peak pressure occurs as piston still going up (also results in negative work/reduced torque). These vibrations from combustion are ALWAYS PRESENT, but to varying levels depending on when ignition occurs and charge density.

 

Yes, I completely agree that knock sensors cannot see the future. I never claimed they could. They must measure things that already happened. What you repeatedly fail to comprehend is that these vibrations that they see exist in every combustion cycle, regardless of whether knock is happening or not. The relative magnitude of these vibrations are what change as rapid cylinder pressures increase. ECUs sample this analog current/voltage. Misfire detection wouldn't be possible if they saw 0 vibrations except when knock occured.

 

Don't believe me? Go hop on HPT or EFI live and change your knock sensor sensitivity to make it sensitive. You'll get "knock" reported under light throttle. The reverse is true too default_smile.png

 

Sent from my SM-N960U using Tapatalk

 

 

 

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48 minutes ago, Grumpy Bear said:

I gave you a point of reference. You ignored it.

I gave the the equation.

You ignored that too.

Gave you the results.

You blew it off  

No surprise you don't see the point.

You don't want to!

D'oh Homer

 

Nothing wrong with my point nor my explanation

It was pretty eighth grade stuff. 

 

 

The point which you're missing, is "reserve power". You can run both trucks up to 60 mph in 13 seconds and then sustain that speed. But the 6.2 has more to give. You feel it the second you ask for a bit more power, or a hill shows up in front of you, or you dip down to 3/4 throttle. Does the 6.2 not feel more effortless to you?

 

Please tell me where I'm going wrong there. Keep it simple, maybe drop down to 6th grade, too many formulas befuddle me.

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I wish my truck had the 6.2, but I didn't want the "options" that getting a 6.2 required for free, let alone the upcharge.  
 
You're kinda "that guy" though.  Everything I have is the best and that's why I have it kind of guy.  Non stop CST is the undisputed king of lifts because I have CST.  6.2 is better than everything because I have a 6.2. When researching lifts your posts kept coming up... My suspension guy said CST is the best so nothing else compares.  It gets old and trivial.   It's hard to believe any of your posts are unbiased
 
5.3 will get better mileage, there is no argument there on stock trucks. Now modded with big tires, yeah, I bet the 6.2 handles them better. Doesn't lug as easy and will stay in 4 cylinder mode easier. Especially since you're probably running 91+ octane, it will have less kr if any with big tires on a stock truck. 


So, you entered this discussion to show everyone that you’re just this insecure. Looks like you’re not speaking from personal experiences, instead a serious “inferiority complex” Btw, You forgot “Amsoil!” LMAO!

That’s the problem with these online sites, cockroaches coming out of the woodwork with nothing positive to add, just negativity and insecurities.


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