Silent Diesel Killer…Diesel Exhaust Gas Temperature (EGT)!
ฝัง
- เผยแพร่เมื่อ 2 ก.ค. 2024
- Exhaust Gas Temperatures (EGT's) are killing you're Diesel, and you don't even know it.
Well, the EGT's won't kill your engine, but they will tell you if something else is trying to.
EGT's tell you how hard your engine is working. The harder the engine is worked, the higher the EGT's will be. Additionally, if there is a failed components causing an intake or exhaust restriction, or an over-fueling situation, the EGT's can spike and indicate the problem.
But you'll never know that unless you install a Pyrometer to measure your EGT's.
In this video, I cover:
1. The Science of EGT's (Combustion Temp vs EGT)
2. Proper Pyrometer Instal (Thermocouple tech and Placement)
3. How to Control EGT's (Tuning, Exhaust Mods, Intercooler, Turbos, Driving Style)
Magnetic Zip Tie Mount: amzn.to/3Pfy76r
Informative References and Articles:
www.motortrend.com/reviews/06...
official.bankspower.com/tech_...
file:///Users/djs61/Downloads/4_Appendice_PistonsandEngineTesting_Mahle_GmbH.pdf
Follow my Shenanigans in Real Time:
Facebook: / freedomworxofficial
Instagram: / freedomworx
00:00 Introduction
00:51 EGT vs AFR
02:17 EGT Science
08:22 Pyrometer Install
15:06 How to Control EGTs - ยานยนต์และพาหนะ
![More POWER With A DPF Fitted? | Gale Banks On Emissions [TECH TALK]](/img/n.gif)
God your explanations are on point, easy to understand the more complex areas which is rare. The humour just adds that bit more “flavour”. I’ve been into diesels for 30 plus years and you have explained all my years of knowledge into a tiny window of time…congratulations.
I appreciate it. It takes me a lot of time to dumb it down to the point where people will actually watch it and hopefully understand it. So thanks for noticing 👍
@@freedomworx over the pond guy here, i was looking for a tune to reduce fuel consumption, what would be a way to go about that, (as long as its not visible from the outside and i can revert for like half an hour every 2 years idc about emmisions) i have an honda 2013 crv with an 1.6l diesel
Sometimes the algorithm blessed you with a channel possessing the precise ratio of entertainment/education. I’m buckled in now sir please continue!
I appreciate the support 👍
That 1776 line was pure gold!
Merica! 🇺🇸💪🏼
And as always, both educational and entertaining! Good stuff!
I appreciate it. Thanks for watching 👍
Peterbilt tech here and i cannot tell these guys enough how much heat the engine retains with out the EGR on these newer engines, not uncommon to see a newely "offroaded" engine, torch a head or turbo shortly after. Great video!
Thanks for watching. Yeah, very few people actually understand what an EGR system actually does, they just know that they don't want it. If you're going to delete it, you best adjust the tuning to account for it, or you can definitely burn one down. 👍
@freedomworx even 80hp GM 2.5 "iron duke/tech 4" will melt a piston if the EGR is deleted
.
You have to be using it JUST RIGHT to get the 80hp to get hot enough
But it can happen
.
.
If the EGR is designed well (aka, doesn't fill the intake with soot, the pipe itself doesnt plug, etc etc)..... I'm keeping it
@@kainhall an EGR can actually increase MPG on a gasoline engine. Most people don't realize that.
@@kainhall To be honest the efr is a good piece of equipment.it's just the engineer's built a good device but they proceed to ignore the pistons something I think is criminal they wanted less emissions but overlooked the best way to improve the heat would be a issue but like I said the e.g.r. would help with that a better set of pistons would help.to decrease those pollution's something companies like wave of air is working on if this type of thing goes big emissions should be a thing of the past if I am looking at this right
It’s hardly noticeable in diesel engines they have so much heat sink mass compared to gas engines. It’s truly pretty much a nox burner on a diesel. Most of the time u notice them melting is cuz the tuners (which is why u notice after tamper) go crazy on timing tryna get em responsive and completely forget these are diiiirectttt injection lol there’s hardly any dwell and we have a pilot shot to take up all dwell. Boost is response and timing is head gasket and valve seat popper, not the other way around like majority thinks. It’s all about cylinder pressures n egt on the danger side and boost and air density on the fun side. Gale really explains it best n simply. I started referring ppl to his videos so I don’t have to waste time convincing n can get back to work
Clicked on a Busted Knuckle link and stayed for your knowledge and sense of humor. First video I've watched of yours and it shan't be the last👍
I appreciate it 👍 BK Matt and I have been close friends since college. Wouldn't even be doing this if ti weren't for him pushing me to make my own channel. Thanks for watching. 👍
Finally someone is on point with their facts.
Good video. Great info!
I try to make sure my facts are factual 🤓👍
Underrated channel!!! Great content!
I appreciate that! Hopefully the channel will continue to grow at a good pace, and that'll allow me to blow money on making better content 😎. Thanks for the support 👍
Great video .. really appreciate the way you dumb it down and make it entertaining for a simple folk like me, makes for a easy watch thats extremely informative
I appreciate the kind words 👍
Informative AND hilarious at the same time.
Nerding is my super power 😂🤓
These videos are packed full of information and freedom.
I'd love to see a video on diesel engine runaway, it's got to be pretty full of science to be explained!
Good call 👍
I learned so much from you! Thank you!
I'm glad it helped 👍
My jaw has dropped. What an excellent, witty delivery on an outstanding topic! My whole life was gasoline, much of that high-performance stuff. then in 2018, my life changed, ram 3500 Cummins stick shift. Fast forward to now and probably having watched thousands of diesel related videos. I suddenly realize that I have no gasoline products anymore that I use regularly. There’s the truck, tractor, skid steer. call of them diesel, all of them turbo charged. Much appreciated video, Greetings from the Fort Knox Kentucky area!
I'm glad you enjoyed it. Thanks for the support 👍
Helpful and entertaining. Great work
That’s my goal. Glad you enjoyed it 👍
Keep up the great vids. Entertaining content on many levels.
I appreciate the kind words 👍
Never watched any of your content before. I’m glad I found ya.
I tow my rv over many mountain passes and shifting down and getting the rpm’s up over 2000 will almost always bring the egts down to a reasonable number. Besides I kinda like hearing it.
RPM is your friend. Thanks for watching 👍
A great video. Thanks for sharing 👍
Thanks for watching 👍
Thank you! Entertaining and Educational
Glad you enjoyed it 👍
Very informative & entertaining. Subscribed!
Thanks for the support 👍
your a trip! love the description. i recommend green sticky impliment grease or bacon grease for the tap.
Definitely going with the bacon grease next time 😂
wow this is gold! thanks bro for the humor!
Glad you enjoyed it! 👍
3rd generation Automotive Engineer 43yrs persona trade life.
Add 2 extra generations, for a whole lotta yrs knowledge.
Nice to hear a guy tell it like it is. No BS, humour abounds which is very cool.
Keep up the cool content buddy 😉👍👍
I appreciate the kind words 👍
@@freedomworx credit where credit is due.😉
Great video. Thanks. 👍
Thanks for watching 👍
Are we gonna ignore the fact he reloads his own ammo .... you sir are a great American 👍
Pew Pew Life 😎
incredible video, top quality short sweet explanations and very entertaining.
My favorite part is "my truck has disk brakes so I used disk brake grease"
I’m glad you enjoyed it. Gotta be careful to choose the correct grease 😂
Just graduated A&P school and these same laws were taught to us. Good video 👍
Danged ole airplane mechanic 👍
@@freedomworx Semper Fi! Small world, keep up the good work brother.
Great presentation, you didn't even have to use a teleprompter.😎👍
I wish I had one 😂
Good explanation on EGT. Now do a demonstration on EGT with a water/alcohol system and how it affects EGT, Fuel economy, and power and why it's better than an EGR system.
I did have a section about water/meth in the video, but I cut it to shorten the video a bit. I've never though of comparing it with EGR though. Thanks for the idea.
Great video.
Thanks for watching 👍
Cool vid..thanks.
Thanks for watching 👍
Full of comedy gold. Love it
Glad you enjoyed it 👍😎
As a new Duramax owner ......
Subscribed, and bell smashed!
I appreciate the support 👍
@@freedomworx I appreciate your insight, and willingness to share!
I hit 1600F+ on my 2.0L TDI, it came with a EGT probe before the turbo.
One other thing you can do that you didn't cover in the video. Water-Meth injection, I plan to do that to lower EGT. I like the presentation and information.
Thanks. I actually had a section on Water-Meth, but I cut it out to shorten the video. But you're absolutely right. 👍
1600f sounds about right, the stock limit is 1675 I believe and the turbo cannot take much more than that
Good sir, you have earned a like and subscribe!
I appreciate the support 👍
You remind me a little of Derek aka vicegrip (compliment) and Cleetus and the guys doing science experiments. another compliment. I'm surprised you don't have more followers. great job.
I appreciate the kind words. I’ve only been doing this type of content for about 6 months. Still learning. Hopefully the subs will come. 👍
Though I'd throw this out there, the oil squirters are one of the main reasons the pistons don't melt. I have a 3406e 2ws that was inframed by the owner, they removed piston/rods without removing the oil squirters, it went 16k miles and I bought it. 2nd time I pulled a trailer at 925 post turbo temp it melted #2.
They were bent just enough the piston wasn't cooled properly, but compared to the new squirters they looked identical except for light scratches.
Yep. That's what I was referring to when I said the heat is lost to the oil. Are those a 2 piece or 1 piece piston? Does the oil shoot into a hole in the bottom of the piston on those?
@freedomworx they are 2 piece piston, the squirters have 2 bent pipes and they have it figured out so they cover the bottom of the piston on each side when it's at the highest Temps.
I really couldn't tell a difference on the angles new to the old scratched ones but it worked, it's set at 550 ish and it put all my new drivers in it.
It won't pull as hard as some of my 700 hp cats but it an awesome engine. I have actually had older drivers mock me for running manifold ( pre turbo) and post turbo k type senders in an autometer dual input pyro. But the factory, and other options are so slow and wildly inaccurate. I just prefer to know exactly what my right foot is doing so I install the dual pyros in all my big trucks and just pre turbo in pickups.
By the way, what shell is your laser pointer. Good job on the video by the way.
@@nicoletingey4995 Ok, cool. Thanks for the info. It's a 30mm shell from an A-10. 👍
You definitely have to be related to Vice Grip Garage! (VGG) Keep up the awesome Vegias!👍🇺🇸
Never heard of her 😉
47 days, congratulations brother!
Almost broke my streak on day 33 😂 💩
Awesome Video !👍
Thanks for watching 👍
@freedomworx welcome love your Excursion!
I appreciate it 😎
@freedomworx not a problem I have an 03 6.0 powerstroke & run he CTS3 with egt sensor lh exhaust manifold. Is there any benefit it running a sensor in each exhaust manifold on a 6.0 just a question? I noticed sometimes my it's don't read correctly on my cts3 I've changed the probe out as well I've noticed. Alot of times it is reading lower than it should I've noticed. Then it goes back to normal. Well what I think is normal. Lol
I think there is a benefit to having one in both sides, but really only in the sense that you can tell if one of the two sensors is bad, or which head gasket just blew 😉
Hey man didn’t realize you were local to me haha. I saw you passed by the Northgate intersection on the 7.3 pull. Great video
Yep. But as far as the law goes. That was Mexico 😎 No emissions or speed laws there 😉
@@freedomworx haha I feel ya
Papi?!? Went through a rough time lately but I recently found my diesel pa-pa again! You just made my week man thank you! I appreciate the knowledge, where did you go to school?
I have an Engineering Degree from Auburn University. Thanks for watching 👍
Great video. Make more.
I'm doing my best. Thanks for watching 👍
I dig your commentary
I appreciate it 👍
i love the ghost rider reference "ill trade yah my hunting dog lucky, hes got one eye and no nuts." classic
I didn’t even realize I was referencing Ghost Rider 🤓
This video got me I gotta see it all now 😂
Thanks for watching 👍🇺🇸
Sweet video, how about injection timing how it affects exhaust temperature and cylinder temperature and turbo inlet and outlet pressure the science. Loved it...
Yes, timing definitely has an effect. Retarding the timing will increase EGT and turbine drive pressure.Retarding timing is a strategy to spool turbos faster while staging. Most common rails are using multiple injection events now, so timing is a little weird. You spread the injection over a longer period of time to decrease peak cylinder temp and pressure, but maintain average cylinder temp or pressure. Good question
Definitely need to see some follow up videos - - with a water injection kit installed
I actually had a segment on water-meth, but I cut it out to shorten the video 😬
I’ve seen, what may be a 20ish mm round, a reload set up and lots of combustion science for diesels. Think I’ll sub now.
30mm 😎. I appreciate the support 👍
A truck a dog. A brilliant presentation
I appreciate that 👍
“Hit the I believe button and keep going” that’s good.
Sometimes you just have to accept that all is well 😉
Nice!
Thanks for watching 👍
Excellent Explanations - ^ FUNNY ... sub'd.
Thanks for the support 👍
Life on a semi engine they are now designed with all this emissions crap end up running hotter temps supposedly to burn off pollutants which means your engine is cooking life out of its self which will leed to a early failure plus they claim you can go extended oil changes but thats only leeding to more stuff in engines oil system flowing around killing rings bearings and components..so you use to get up to 2 million miles on a diesel if maintained good but now you get 600-750k miles and thier shot sometimes around 350k to 400k miles then probelms happen ...EPA is a joke thier mission is to kill our ecomany any which way thier comunist heart tells em to do it...its un-American!
Newer emissions equipped engines don't run hotter, their emissions systems run hotter so that the catalysts in the exhaust system can do their jobs. The purpose of the EGR system is to keep the combustion temperatures lower to reduce NOX emissions.
Muuuurica! Land of the free! (not really 😂)
@@illernpiller where do you live?
@@freedomworx Sweden, not sure if my sarcasm reply to the initial poster went through =D
@@illernpillerof the sheep*.
Awesome video, 😂😂 too . Just changed the intake horn, and hot & cold side pipes. And not to mention a 140 fass also. Gotta save up now for the ct3, get a diesel they say. It’s like owning a boat & jeep at the same time. If only I had my money I spent on the jeep. 😢
If you want to be fiscally responsible...you're buying the wrong toys 😂. Skateboarding sounds like a cheap hobby...maybe I'll take that up 🤓
Bought the Jeep for a quick cheap 2nd vehicle for work. Turns out it was not a practical wagon. Then the truck was supposed to tow a 5wheel but that sky rocketed. Now it’s a fun expensive ride the wife hates. Laud and rough and seats are not comfortable. So I try to keep it, you know to make her happy. 😊 😂 And i can’t skateboard 🛹.
If you spend $80k to build a Ford Excursion, it'll ride and drive in a manner that your wife is agreeable to. Ask me how I know 😉. (Fortunately most of my Excursion stuff was sponsored!)
How do I get on a sponsorship list? 😂 I need it badly.
@rbyronson2426 you gotta know a guy 🤓
Jamin, I thoroughly enjoy learning about diesels with you. And I’m not really Adam Sandler.
I certainly had you pegged for Billy Madison 😂
Great presentation, and hilarious as well.
Your excursion will really move, especially for a big girl. I’ll have to look for it on your channel!
Yeah, it's pretty quick for it's size. It makes nearly 500HP at the tires. It was really quick before I added all that extra weight and larger tires.
Scania has recently came out with an Exhaust Aftertreatment System that eliminates EGR.
All Emissions mitigation happens behind the Turbo and trough engine tuning.
Pretty amazing honestly I wonder what the effects of no EGR System has on the engine.
I'll have to look into that. Thanks 👍
the lighter example is an incredible demonstration of frequency, the frequency of the movement of your hand keeps your from being burned or shocked, the slower the movement or frequency the more time for energy to transfer to cause damage.
low rpm (frequency) high temp is bad, i suspect thats why the DPF clogs on newer diesles when they idle
RPM is your friend
The science and engineering behind Diesels is awesome.
Way more interesting and intricate than gasoline engines to me.
It's interesting that gas guys think diesel is complex and diesel gas think gas is complex. To me, the only complex thing about diesels is managing emissions. Everything else is pretty straight forward. 👍
@@freedomworx Diesels are so simple to me. You need fuel and air. In diesels there is no such thing as needing to run within an Air Fuel Ratio window.
The only rule really is: The leaner a diesel runs the better.
Less emissions, more efficiency.
More air = more good.
More fuel but not more air = eww rolling coal like a mf and dogshit fuel economy paired with high EGTs.
More air makes the diesel happy aka spooly boi go brrr.
@alouisschafer7212 yep. They are simple. The only hard part about diesel tuning is making good power and economy while keeping emissions in check.
Best timing for compression lower the more boost depending on voltage ⚡ fuel
😎
As a guy who has a Cummins in his Ford, I can confirm that I have both a better body and a bigger pipe than the other guys.
I see what you did there 😂
I ran my early 03 5.9 Cummins at 1600°F EGT for 20 minutes straight. I wouldn't recommend doing it, but it was during an emergency, so that's the only reason I did so. I usually keep it in the 400° to 600° range as it is happy at those temps.
That’s actually pretty impressive 😂😂
Older Cummins are safe to a sustained 1250F. 1600 is absolutely pushing it.
@@1320fastbackDamn man, On a hard pull I can peak and hold 1650 ish till I let off on a 2 liter passat commonrail XD
Keeping the engine revved up towing equals more CFM coming out of the turbo equals more cooling of the engine and combustion chamber. Bigger intercooler after cooler water methanol injection
That’s one way to look at it. Horsepower equals heat. To make the same amount of heat (watts) with fewer RPM, you have to make more heat per engine cycle. Meaning more cylinder and egt’s.
@@freedomworx Yes to a certain point. Exactly what you said in the video. Just put compound turbos double the CFM volume going through the intercooler / after cooler which in return equals more volume going through the cylinders of cool air
I’m building a compound 12 Valve right now. Should start seeing content within a couple weeks. 👍
@@freedomworx That's awesome man. I built a compound 24 valve on my big truck. It's a 60 mm over a 77 mm. It runs nice and cool for weighing 12,000 lb. And then I put my big dump trailer on there and put my JCB 214 backhoe in the back of it. It weighs in at 42,000 lb all together and still runs cool
"It's actually really simple if you don't think about it." 😂😂😂😂 that is getting added to my lexicon
I dabble in the philosophy. 🤓
drum brake vs disk brake grease. glad i wasn't drinking milk. subbed.
Glad you liked that one 😂👍
what's better for the engine under extreme load and fueling? I've only watched the first 6mins of this video, so if it's answered later please feel free to say "watch the damn video".
1. higher rpm / lower gearing, with slightly lower boost and EGTs
2. lower rpm, taller gearing, but slightly higher boost and EGTs
I'm guessing there's a trade off between options 1 and 2 due to the 'recovery' time between combustion cycles being reduced with higher rpms. is this true? i usually try to be a option 1 driver, as i've always focused on EGT and lowering strain from over-gearing. But am i wrong?
Thanks, and excellent video too!
Watch the damn video! 😂. Seriously I discussed that later in the video. RPM is your friend under heavily loaded conditions. Keeps the EGT and stress lower on the motor. Lugging creates higher heat and pressure. 👍
I like how you point out how the thought that the emission control and noise control systems in a modern truck are the largest exhaust bottleneck is false, and the downpipe is the real major issue.
The first generation emission control systems WERE downright awful for performance, and also were not durable. They used packed crystal catalyst. About the only thing truck owners liked about them is the fact that they increased emission noise not unlike a glass pack on a motorcycle, something neighbors hated about them.
I'm not sure that't the impression I was trying to make. I was making that statement in reference to non-emissions equipped vehicles. After treatment devices do create back pressure beyond the down-pipe. Installing a bigger down-pipe on an emissions equipped diesel isn't going to have nearly the effect that it would on a pre-emissions or deleted vehicle. Also, on a Cummins equipped truck, the down-pipes are already large enough because the turbo is on the side of the engine, so the down-pipe doesn't have to squeeze between the engine and the firewall like on a V configuration engine.
Keep them old minty Diesels Alive Boys 💪
The glory days of DEZL.
@@freedomworx still is the glory days if you are strong enough 💪🤫
@cupwalker24.7 😎
Bahahaha that was one drop 😂😂😂😂
You know it’s true 😂
@@freedomworx that much half a drop lol 😂🤣🤣
6:00 and this is why you can melt pistons if your engine leans WAY out......
.
the combustion temp gets a LOT higher.... and despite only being in their for 25% of the strokes (and really, its more like 18-20%, due to valve overlap, expansion, ETC)
to combat this... modern engines, even gas engines, use "piston squirters"....... they shoot oil on the bottom of the piston
Good ole squirters 💦
@@freedomworx damn right lol
For the nerd explanation of a thermocouple:
When you bind two metals together the point at which they merge forms a diode, much like a crystal in a crystal radio. This point is basically a semiconductor junction but unlike other semiconductors has stronger properties .
All diodes have all the following properties, but each one is built to maximize one and exploit it.:
1. They conduct electricity more easily one direction than the other.
2. They completely block electricity on the direction they provide resistance in up to a certain voltage threshold.
3. They create a small amount of light when electricity is run through them.
4. They transfer heat from one side to the other when electricity is run through them.
5. When heat is forced from one side to the other they generate a small amount of electricity.
6. When exposed to light they generate a small amount of electricity.
7. Properties 1 and 2 change in threshold based on temperature to an amount based on material.
8. Properties 1 and 2 change based on light exposure.
Thermocouples are designed to maximize the 7th behavior I listed, while minimizing the others. They are also designed to have that behavior appear in the most reliable manner possible. Hence, when attached to a voltage source, a known resistor load, and an appropriate electrical measurement circuit, you can read the heat the that the thermocouple is tied to with a high degree of accuracy.
Thermocouples produce their own voltage. Has nothing to do with a resistance reading in the sensor producing a gauge input, like other sensors, is that’s what you are insinuating.
Very interesting stuff to learn. I got a question. So will reducing the intake temperature, let’s say with a big heat exchanger after the turbo compresses the air, help lower the exhaust temps? If so is it significant?
Yes, that’s an Intercooler, I discussed that towards the end of the video.
@@freedomworxomg 😮😅 I commented this while watching the video! I JUST got to the part where you said it! Thanks man. Sorry for not waiting till the end but that’s where my mind took me as it was processing the info you were giving me. I’m assuming adding a bigger intercooler also helps reduce the EGTs in say a 3.5 Ecoboost. But, but in that case, are EGTs a problem?
@@bvbhu3dg gasoline engines actually have higher EGTs than diesel engines. But as long as the AFR is controlled, it’ll be fine. If the engine is stock, there is no reason to worry about it. Have you seen the Eco-Boost torture test narrated by Mike Rowe? They had that truck maxed out on towing capacity and ran it around Daytona full throttle for 24 hours 😂
@@freedomworx I just watched, it’s incredible
Great video! Water meth injection will also lower egt
I actually had about a minutes worth of Water Meth injection footage at the end of the video originally, but I cut it out because I know most people aren't going to use it. But you are absolutely correct. 👍
@@freedomworx do you think water meth is worth it?
I think there are better options for a diesel, but if there is no other way, sure. A better turbo(s) for the operating conditions would be ideal, but that’s obviously more expensive.
Best timing with lowest compression turbo
All the boost!
In diesel - more fuel = higher egt
Thats why leaky injectors can lead to broken engine.
Cheers from 2.0HDi (Citroen) tuned from 136 to 210. It didn't need more than a hybrid turbo and few mg/inj to do it. And yea. Turbskie is smol. But makes power.
Yeah, a stuck injector can certainly burn one down 🥴
I used a thermocouple and would never let the engine run over 650deg Celsius normal driving. When racing however i would regularly bnild dngines that could see 800deg quite safely. The biggest killer for any diesel is poor quality fuel.. and possibly oil starvation... or maybe water ingestion...and occasionally a failed governor...but there was that one time the timing belt snapped, that shaffted the poor girl pretty hard. I always measured at the down pipe for ease of fitting.
That's pretty hot for a downpipe temp. At least for a diesel it is. Gasoline engines have higher EGTs.
@@freedomworx Yeah agreed that would be the absolute max at 650 on the down pipe. That would be like you showed in your test ie high load full throttle. My race diesel engines normally have uprated oil cooling to the piston and the bigger valves and seats generally help.
@captainchaos3053 yep. Piston, valve, turbo upgrades cooling upgrades can definitely extend the safe EGT range 👍
You're like Burt Kriesher's knowledgeable older brother
Burnt Chrysler 🤓
Chts cylinder head temperature before egts ceramic forge. Billet
I'm guessing you are an aviation guy?
I wish I knew not to run the tap in all the way. The first time I did it I thought I used the wrong tap because of how loose my sensor was.
That’s how a lot of us learned. 😂
I like that part about not being proud.
I'm married, lost my pride about the time I took a bite of that wedding cake 😂
Entertainment at its finest
Thanks for watching 👍
A lot of people hate on EGR because they think that it clogs up their intake. It's not that, it's actually the PCV valve (aka my mortal enemy).
Let's think about that. Normally, your exhaust should have gas and dry dust flying out the back. So, it doesn't make sense for dry dust to cause a wet goopy mess in your intake valves. You know what does cause wet goopy messes? Oil vapors.
The reason that the PCV is my enemy is due to the way it's implemented. It's there to make the air pressure on top of the piston be the same as on the bottom of the piston. So, like, WHY NOT ROUTE THE PCV FROM THE CRANKCASE TO THE VALVETRAIN? Why would they ever choose to spray the intake with an oily mist when they could spray the valve train with an oily mist?
I hope you can see why I don't like the PCV.
P.S. you engine experiences something called "pumping losses" at low rpm. The EGR actually helps to mitigate that. In short, it basically allows you to open the butterfly intake to like 50% but you only get 10% power which is good for low rpm pumping losses (numbers are just made up to illustrate a point).
You can’t vent the crankcase pressure to the crankcase. The pressure in the bottom end of the engine is the same as the pressure under the valve cover. 🤷🏻♂️ EGR only affects pumping losses in spark ignition engines with throttle bodies. Doesn’t offer that benefit on a diesel.
Q: are the temp:voltage outputs of K type probes (supposed to be) standardized...or do diff. manufacturers' probes produce diff. ranges (diff. ratios)?
They are supposed to meet a standard ANSI/ASTM spec.
@@freedomworx Thanks. Good to know. So on my 14yr old "SS Competition" EGT I tried replacing the failed (K-type) probe with another one I got with a cheap chinese EGT and it sorta works. Gauge seems to show temps of 1/2 to 2/3 of reality. Now that I know probes are supposed to output standard voltages (and have found these published values srdata.nist.gov/its90/menu/menu.html ) I'll pull out the probe and test it at specific temps to see what voltages it's producing. Application is a Mitsubishi 4D56 turbo diesel that are notorious for cracking aluminum heads when ran too hard.
MALS-36 !! Spent a few years with them at BLDG 638. 2010-13. You look familiar.
I was there from 2001-2002. I was actually there during 9/11. I was the barracks Duty NCO that night. I was trying to catch a nap on a pool table (horrible idea), and my A-Duty woke me up to tell me something was going down. Did I mention we were also dealing with a Typhoon that night. Wild night.
@@freedomworx 😮 I was in high school history class watching it on tv. Graduated that year and Joined the Marines 2002 because of it. I was surprised to see that Patch, I knew as soon as I saw it. I enjoy your content, One day I’ll be as good as you, I have plenty of footage just need to put time it to edit and post.
@schmittybuilds1624 cool to have a viewer that was in the same unit 👍. I’m sure you can do it. It takes a lot of research and repetition to figure out what makes content that people will click on and watch. I recommend this book as a good place to start. I’ve listened to it a couple times. www.audible.com/pd/B09XY17D9S?source_code=ASSORAP0511160006&share_location=pdp
Thank you! I will definitely check it out.@@freedomworx
Ideal Gaslaw... I'm picturing exponential gains or losses with pressure X temperature..
Edit.. So does that mean a Detroit Diesel's hold their hands over the lighter longer?
Yes. Those 2-Smoke Pistons live a hard life 😉
After watching this video about egts for diesels how about weather egts are important on the new twin turbo engines. I'm sure gasoline it is not but there might be people out there that don't understand.
Gasoline EGT's are actually higher than diesel EGT's under normal operation. Especially forced induction gasoline engines (supercharger/turbocharger). But factory tuning ensures they remain in check by controlling the AFR. Maintaining a rich AFR keeps the EGTs down under heavy loads.
Hi, I'm new around here in your channel. Very interesting explained everything, but I am bit curious about that vacuum thing after the MAF sensor at the intake side. What's its purpose and how do u name it? Thanks in advance 😊😊
I’m not exactly sure what you are referring to. The PCV?
I think not, you have shown it at 16:19 and my bad - its before the MAF
@iasengeorgiev6023 ohhh… that’s called a Filter Minder. As the air filter becomes restricted, it will move and tell you that it’s time for a new air filter.
@@freedomworx Perfect, thats genius, thanks, i have to search around my place for smthng like that, thats seems like a good idea on turbo engine :) thanks again for info
@iasengeorgiev6023 it’s pretty standard on Diesel pickups in the U.S.
Billet steel ceramic coating 💎 dust pistons head chamber n valves can hold more hotter temp like Lycoming instead Continental 390 optimum level 400 to 🔥🥵 damage something unless it's one then spark plugs or if all magneto but just know with plus 20 timing etc naturally aspirated engine but Lycoming can do 420 414 optimum level
😎
What tunes are you running on the excursion
It’s custom tuning form Jelibuilt.
What temps do diesel trucks normally run? My 2 liter passat has an EGT limiter set at around 1675 which is the limit of the turbo before bad bad things happen XD
Trucks normal cruise around 700 and max towing is usually 1100-1200. My guess with the TDI is VW never expected the engine to sustain that 1675, because honestly I can’t think of a situation that a TDI could be loaded that hard without going 299mph. 😂. BTW, a had an ALH 5 Speed Jetta TDI for a long time. Had big injectors and ran this piss out of it every day. Never had a pyrometer on it.
@@freedomworxthey hit that limit pretty fast! Tiny tiny turbos and rich running to get such decent torque and power for their size
I almost learned something, but I drive a Mustang GT.
Westen has a Mustang with a diesel 🤓
I've had my 6liter (big injectors single turbo) to 2k degrees SEVERAL times on the factory pistons 🤣
2k sustained? Surprised your head gaskets didn’t delete themselves on that 6.0L 😉
The higher you fly upward the colder
😎
RIP that boost gauge 😂
Not sure if that was the Turbo or the Boost Gauge squealing 🐷
Damm near 50 PSI. That’s scary. I thought 35 was bad enough…it is in a 3.0 litre 4 cylinder. Thankfully it rarely sees this.
I have heaps of gauges measuring (4 times standard volume aftermarket) intercooler, both incoming and outgoing temps, boost, EGT, scan guage, transmission temperature.
Then I have an “engine guard”, with temp sensor bolted onto the rear of the head (fire wall side-so it’s the hottest), this also has oil pressure reading as well. Only thing I haven’t got is oil temperature.
@@martinlang9615 so basically you are a need like me 🤓
What about if you add water/methanol injection. Will it lower your egt?
Yep. I actually had that in the video and cut it out to shorten things up.
@@freedomworx can you do wideo about water/methanol injection in diesel engines. Is good and bad sides of it. Whant to do it for my 2017 ram 6.7 Cummins but cant find any info for Diesel
@@bogdanshulga2465 I’m honestly not sure how well it would jive in an emissions equipped truck, assuming yours is. I’ve never really thought about it. But it certainly works to reduce EGT and increase power in high boost/load situations.
MORE DIESEL CONTAIN ❤❤❤
Diesel!
Related to Derick from visegrip ?
Never heard of him 😉
Half cousin on his Canadian side
Are you The Fat Electricians brother? You look like twins 😆
I don’t see it. But he’s a funny dude 👍
Looks like Derick’s brother visegrip
With great knowledge comes great beards.
😂😂
A mechanical Bert Kreisher?
And 3 to 5 minute idle cool down after working a diesel hard to avoid cracking the head..
Cooldown is primarily intended to allow the turbo to cool so that it doesn’t cook the oil in the turbocharger bearings once they lose oil flow.
I would say exhaust valves are in danger of burning an edge. 1250 degrees max. 1200 for a few minutes. 1100 degrees extended. That is my self imposed limits
Nothing wrong with imposing conservative limits on yourself.