In this rapid-fire Tech Tuesday, we give you a brief overview on the inner workings of a turbocharger along with the basics of boost control. Keep in mind - this is Tech Tuesday so we're only covering the basics here, if you want us to expand on any part of this video - let us know in the comments section. Enjoy!
You could make a video on how to set coil dwell. I did figure it out a long time ago but when I wanted to explain it to someone else, I completely confused both of us. And that was a COP system, so not only did I use my current clamp, but I also needed an extended HT lead so the spark would reach the plug. I'm not even sure that I needed a secondary voltage pickup. Can you set dwell by looking _only_ at the coil's low-side current?
When i removed 2 of my TD04-15G from my old Volvo 850 and 850R both where crack on the exhaust housing. I changed my actuator since the springs was so weak i was only at 4 psi instead of 10.5psi till i get no boost. I bought an after market with different spring stiffness, but even the hardest spring i couldn't barely it 7 psi, my tune was 15psi so i open the actuator and i putted second spring inside the case. After that it worked i could hit my 15psi, on cold morning with cold air i was hitting around 18psi. Now i got an Type R 2018 tired of trying to hit 300hp.
@@mareksumguy1887 yeah man, I'm self taught. I don't know everything. I've only Tig welded one turbo manifold with external wastegate, read 3 books on performance building and tuning engines, street tuned one 412whp rb25, and only swapped 5 motors. The amount I still don't know is huge. So, when someone at haltech is willing to take the time to teach something, even super basic, you pay attention, because you never know if you're missing some foundational knowledge that can help you down the road.
Always a great video. Question though.. how do you have different boost levels for the same engine rpm between tunes? Do you increase the fuel so there's more combustion gases to up the boost? Then your AFR is messed up ?
Under full load, without a wastegate when it reaches charge air pressure at a set RPM limit, will it increase the turbos speeds and lean it out? If not, what prevents it? I am trying run my engine with no wategate, I know that 2x69mm turbos are clearly big enough for my 5.7L. Does the wastegates allow the engine to run at lamba at all rev ranges? Thanks, Joseph
It would be great to see a detailed video on how a boost control solenoid works. Is it vacuum or boost pressure to the port on the Wastegate actuator that causes it to open? Its crazy to think how such a small device can modulate the WG actuator and in turn the WG.
Appreciate this was three years ago now but did you track down a video on how a boost control solenoid works? This video is excellent but yesterday we resolved a lack of power by replacing this solenoid, cheers
5 років тому+1
i removed the boost solenoid ,put a long tube to inside the dash,and attached a small nozzle with a tap, instant and manual boost controller, 0.5 to 1.5 at the tip of your fingers,and just costed 1€.
Jkrui that setup doesn't work well and you are missing out on low rpm boost. An electronic boost controller will keep the wastegate fullt closed @ low rpm and low boost, ie prespool, giving much faster spoolup and pre spool throttle response. A simple boost bleed off cannot do that.
Hey I have a question Say Im running the stock ECU and insert a boost tee and turn up the boost, will the car automatically insert more fuel, to stop it running lean?
Well you could put unlimited boost in ...And you WILL see what happens. Love all these uploads guy's thanks. I am running a positive displacement 2.3 LTR vmp supercharger. it with current pulley makes 15lbs, 08 Mustang cobra GT500.
@@nordic5490 I was thinking about those, but i plan on going NT05's out back and pilots up front. I live in Fl so lots of rain. Granted the drag radials will suck in the rain , at least the brakes and steering will be solid.
Gopherchucks Games the Michelin Pilot Sport 4 (not 4S) are your #1 choice for performance plus rain performance driving. Yes, they will overheat after a couple of laps at a circuit, but on the road they are #1. Michelin really are leading the other manuacturers by a big margin in wet weather braking distance. 4S is better on a track, ie, once some heat is in them, and wont overheat.
0:10 LOL those moments when you try to say the words .. "FUNCTIONS" and "WORKS" at the same time and you meant to say FUNCTIONS but at the very last second you decided to say WORKS, then you decided, nah, i'll switch back to functions then you realize it's too late and you're like, i'll just roll with WORKS LMFAO
@@haltech oh.. i see now. it's all clear he didn't mean to say FUNCTIONS he meant to say FUCKIN'..... and he was holding back at the last moment ..........Now i get it... it all makes sense haha
Good information scott but i would love to know along the lines of how the size of the wastegate affects control. My internal wastegate controls well at 10psi (std actuator 7psi spring) but can seem to control 12psi very well even with an aftermarket actuator and a 10 psi spring(mac valve with power fc ebc) was wondering if a 44mm wastegate would fix this problem or is there something else that could be done. Target boost is 0.82bar and it usually reaches 0.7 to 0.77bar
Thanks, @@haltech Team! Hi Jeffery! Usually, wastegates are sized to meet a minimum boost threshold, to avoid issues such as boost creeping upwards away from minimum target. The basic factors needing to be considered when sizing a wastegate are minimum boost target, engine capacity, fuel type, piston/rotary, number of turbos and their scrolls and engine speed. When boost targets cannot be met and are undershooting, this is usually from excessive backpressure blowing open the wastegate, at this point a different control strategy is required, or an increase in base pressure spring is required to recover the force needed to maintain the wastegate in the closed position. Given your issue is at relatively low boost, I would investigate all other avenues before switching to an external wastegate. In regards to boost control and wastegate size, there is a possibility of running a wastegate that is simply too large where for a small opening in bypass path, a relatively large amount of gas flow relative to the total exhaust gas flow of the engine can be bypassed away from the turbocharger, causing a sudden loss in boost pressure, then the wastegate closes followed by a rapid rate of boost pressure increase, and the cycle repeats - this would be an extremely rare situation which our technical support team has yet to see. It is not uncommon for many traction limited vehicles to be running our largest wastegate possible to bleed as much boost away from the turbocharger for maximum tractive effort, only to dial in as much boost as possible for maximum engine power a few gears later. If you have any tech support questions regarding boost control, feel free to drop us an email; tech@turbosmart.com.au !
Looking forward to getting my elite 2500 installed on my 1JZ and all tuned up. I'm keen to exploit some of it's many new features, compared to my old PS2000 ecu.
@@haltech For sure. I've got new 264/272 cams, new turbos, and the elite 2500 ecu. It should feel like a totally different car. I love the fact the elite 2500 has diagnostics and that I can monitor my engine parameters with an app on my smartphone.
Heres a good question, Why is there no readily-available method of complete electronic wastegate control? Instead of relying on electronics trying to control pneumatics, why not have an electric motor to have complete waste gate control?
![💬 How CO2 Boost Control Works [Technically Speaking]](http://i.ytimg.com/vi/LyOhfDw54zo/mqdefault.jpg)
![💬 How CO2 Boost Control Works [Technically Speaking]](/img/tr.png)
In this rapid-fire Tech Tuesday, we give you a brief overview on the inner workings of a turbocharger along with the basics of boost control.
Keep in mind - this is Tech Tuesday so we're only covering the basics here, if you want us to expand on any part of this video - let us know in the comments section. Enjoy!
You could make a video on how to set coil dwell. I did figure it out a long time ago but when I wanted to explain it to someone else, I completely confused both of us. And that was a COP system, so not only did I use my current clamp, but I also needed an extended HT lead so the spark would reach the plug. I'm not even sure that I needed a secondary voltage pickup. Can you set dwell by looking _only_ at the coil's low-side current?
When i removed 2 of my TD04-15G from my old Volvo 850 and 850R both where crack on the exhaust housing. I changed my actuator since the springs was so weak i was only at 4 psi instead of 10.5psi till i get no boost. I bought an after market with different spring stiffness, but even the hardest spring i couldn't barely it 7 psi, my tune was 15psi so i open the actuator and i putted second spring inside the case. After that it worked i could hit my 15psi, on cold morning with cold air i was hitting around 18psi.
Now i got an Type R 2018 tired of trying to hit 300hp.
No matter how much I think I know about a topic, you always sprinkle in a few tid bits of new info, keep it up guys!
Dylan Wiebe you don’t know very much, then.
This was as basic as it gets.
tittlemouse92 stupid much?
@@mareksumguy1887 yeah man, I'm self taught. I don't know everything. I've only Tig welded one turbo manifold with external wastegate, read 3 books on performance building and tuning engines, street tuned one 412whp rb25, and only swapped 5 motors. The amount I still don't know is huge. So, when someone at haltech is willing to take the time to teach something, even super basic, you pay attention, because you never know if you're missing some foundational knowledge that can help you down the road.
@@mareksumguy1887 why so saulty over a bloke learning? Make ya feel big? Lol small man syndrome
This video made it sooo simple to clear my doubts about wastegates and boost control. Thank you very much :)
can you do a video on evap systems and fuel cells, why it exists, and common practices when adding forced induction?
"Thanks for sticking with me to the end, my names Scott, and i'll see you next time"
........ he says to all the ladies 😮
Good clear information. I like this video.
Always a great video. Question though.. how do you have different boost levels for the same engine rpm between tunes? Do you increase the fuel so there's more combustion gases to up the boost? Then your AFR is messed up ?
It's all done by the ECU which adjusts the AFR accordingly.
Under full load, without a wastegate when it reaches charge air pressure at a set RPM limit, will it increase the turbos speeds and lean it out? If not, what prevents it?
I am trying run my engine with no wategate, I know that 2x69mm turbos are clearly big enough for my 5.7L.
Does the wastegates allow the engine to run at lamba at all rev ranges?
Thanks,
Joseph
Another great video!, wish I lived in Australia! I would go work and learn from you guys! 👌
Did you ever make it down to Australia?
Very informative I'm always learning from you thank you.
Setup strategy for 4 port solenoids please as they seem pretty hit or miss
It would be great to see a detailed video on how a boost control solenoid works. Is it vacuum or boost pressure to the port on the Wastegate actuator that causes it to open? Its crazy to think how such a small device can modulate the WG actuator and in turn the WG.
Appreciate this was three years ago now but did you track down a video on how a boost control solenoid works? This video is excellent but yesterday we resolved a lack of power by replacing this solenoid, cheers
i removed the boost solenoid ,put a long tube to inside the dash,and attached a small nozzle with a tap, instant and manual boost controller, 0.5 to 1.5 at the tip of your fingers,and just costed 1€.
Jkrui that setup doesn't work well and you are missing out on low rpm boost. An electronic boost controller will keep the wastegate fullt closed @ low rpm and low boost, ie prespool, giving much faster spoolup and pre spool throttle response. A simple boost bleed off cannot do that.
Hey I have a question
Say Im running the stock ECU and insert a boost tee and turn up the boost, will the car automatically insert more fuel, to stop it running lean?
Hi Scott, I came here to see if I could learn what a 3 port boost solenoid does? Perhaps you could do a video on this.
Well you could put unlimited boost in ...And you WILL see what happens. Love all these uploads guy's thanks. I am running a positive displacement 2.3 LTR vmp supercharger. it with current pulley makes 15lbs, 08 Mustang cobra GT500.
Those superchargers rock!
@@haltech indeed they do man. No grip through 3rd on Goodyear F1's and sometimes even 4th on cold tires . But that is the fun of it.
Gopherchucks Games get some Michelin Pilot Sport 4S
@@nordic5490 I was thinking about those, but i plan on going NT05's out back and pilots up front. I live in Fl so lots of rain. Granted the drag radials will suck in the rain , at least the brakes and steering will be solid.
Gopherchucks Games the Michelin Pilot Sport 4 (not 4S) are your #1 choice for performance plus rain performance driving. Yes, they will overheat after a couple of laps at a circuit, but on the road they are #1. Michelin really are leading the other manuacturers by a big margin in wet weather braking distance. 4S is better on a track, ie, once some heat is in them, and wont overheat.
0:10 LOL
those moments when you try to say the words .. "FUNCTIONS" and "WORKS" at the same time and you meant to say FUNCTIONS but at the very last second you decided to say WORKS, then you decided, nah, i'll switch back to functions then you realize it's too late and you're like, i'll just roll with WORKS
LMFAO
He's Australian, he was instinctively trying to drop an F bomb.
@@haltech
oh.. i see now. it's all clear
he didn't mean to say FUNCTIONS he meant to say FUCKIN'.....
and he was holding back at the last moment
..........Now i get it... it all makes sense
haha
Would love to sit around a fire with Scott and Alan and talk this stuff. I would be in nirvana
Good information scott but i would love to know along the lines of how the size of the wastegate affects control. My internal wastegate controls well at 10psi (std actuator 7psi spring) but can seem to control 12psi very well even with an aftermarket actuator and a 10 psi spring(mac valve with power fc ebc) was wondering if a 44mm wastegate would fix this problem or is there something else that could be done. Target boost is 0.82bar and it usually reaches 0.7 to 0.77bar
We know just the people to ask! Hold on...
Thanks, @@haltech Team! Hi Jeffery!
Usually, wastegates are sized to meet a minimum boost threshold, to avoid issues such as boost creeping upwards away from minimum target. The basic factors needing to be considered when sizing a wastegate are minimum boost target, engine capacity, fuel type, piston/rotary, number of turbos and their scrolls and engine speed. When boost targets cannot be met and are undershooting, this is usually from excessive backpressure blowing open the wastegate, at this point a different control strategy is required, or an increase in base pressure spring is required to recover the force needed to maintain the wastegate in the closed position. Given your issue is at relatively low boost, I would investigate all other avenues before switching to an external wastegate.
In regards to boost control and wastegate size, there is a possibility of running a wastegate that is simply too large where for a small opening in bypass path, a relatively large amount of gas flow relative to the total exhaust gas flow of the engine can be bypassed away from the turbocharger, causing a sudden loss in boost pressure, then the wastegate closes followed by a rapid rate of boost pressure increase, and the cycle repeats - this would be an extremely rare situation which our technical support team has yet to see. It is not uncommon for many traction limited vehicles to be running our largest wastegate possible to bleed as much boost away from the turbocharger for maximum tractive effort, only to dial in as much boost as possible for maximum engine power a few gears later.
If you have any tech support questions regarding boost control, feel free to drop us an email; tech@turbosmart.com.au !
Looking forward to getting my elite 2500 installed on my 1JZ and all tuned up. I'm keen to exploit some of it's many new features, compared to my old PS2000 ecu.
You'll love it:) Send us some pix of your ride when it's all done!
@@haltech For sure. I've got new 264/272 cams, new turbos, and the elite 2500 ecu. It should feel like a totally different car. I love the fact the elite 2500 has diagnostics and that I can monitor my engine parameters with an app on my smartphone.
Would this be expensive?
So you need a boost controller AND a external wastegate ?
Yep, the external waste gate is the "base boost pressure," and the boost controller adds on top of that boost.
External or internal will both work.
I need that Haltech Flask...
You'll have to wrestle it off Richard
How about calculating the biggest turbo possible for the engine build without the need of bleeding off any exhaust gas
Heres a good question,
Why is there no readily-available method of complete electronic wastegate control?
Instead of relying on electronics trying to control pneumatics, why not have an electric motor to have complete waste gate control?
👍
Connecting rods:
SpinnyThang:👀
SpinnyThang#2: Remember, no compression
What?
ExOst, Wäystgait, Buust xD
Royt yuu arrr...
"wouldn't end well"... Depends if someone's recording it or not... 😆
Poor wastegate
Them wastegate feels...
On our next video, we work out how the microphone works...
Could barely hear you Scotty!
Sounds okay from our end. Anyone else experiencing this problem?
@@haltech Fine for me. Maybe your next video should be showing how the volume button works...
*Wednesday ;) (I know I know. lol
First!
hello tuning fork
Hello back!
Here's a fantastic follow up video everyone can view - ua-cam.com/video/2ZpCYe_0Azs/v-deo.html
Do I see blood on your fingers???
It's the blood of Facebook tuning "experts"....
ssshhhhhHHHHSTUU-STU-STUUuu