This vid demonstrates the how spring rate and spring pre-load work on a wastegate. This is a good primer for understanding how springs operate in application
I still love my Synapse 50mm. Just put in the 40mm seat, Spring B, and stiff preload spring in my turbo LS 67 firebird. Using Ports C & D now sits at ~12psi on the low setting on my dual stage controller. I wish Synapse was still around. What a cool concept.
what i like is the screw on the top. makes it alot more easier. i love that, my bov the only way to adjust anything is to take off the top cap. good video
question: is it better to have correct spring in westgate and control boost just by that or have weaker spring and control boost via boost control?? i know in 1st version You wont be able change boost level without changing spring but are there any cons with boost controller apart of easy level change??
a@@pnwmidnightclub2939 aparently its better to have weaker spring and use boost controller than having spring with target boost rate, with weaker spring boost controler will hold westgate closed till desired pressure so boost will come more agressively, with target spring rate it will crack open before max boost - had this response on different channel and make sense.
if the wastegate wont leak, you will spool quicker. without the diaphragm, you also benefit when temperature changes since its not affected as much. it also has interchangeable valve seats and springs for even more options. with the vacuum ports, you can change boost easily. its a boost controller and wastegate in one. you can use the preload on the wastegate to fine tune boost levels.
do u use external wastegate as a standard internal one would not be able to waste enough for performance/ extreme boost. I run adjustable bleed valve on a TD, u can also get pre set valve arrangement to adjust boost, 2 one way valves, one adjustable, arranged in parralel but in opposite directions, the valve feeding waste gate is adjustable, the other allows the wastegate to close again. I bet u get some insane BHP turboing big V8's?
bottom line is that if however your turbo spools with the wastegate shut is the fastest you'll get your turbo to spool. But if your wastegate is cracking open too early, then you can use addl spring pre-load to get it to open later to help your spool time.
Questions: 1. Does adjusting the preload vs. changing the spring essentially have the same effect. Is one preferred over the other? 2. If you're trying to reduce spool up time, is it ideal to have the stiffest spring possible that doesn't result in over boosting? It seems odd that you'd want to bleed boost prior to hitting max boost, as it'd just reduce mid range torque. Thanks!
Sort of, adding pre-load to any spring means you're adding force required to open the valve. A high rate spring vs a low rate spring, means that the spring lifts (opens) slower, conversely closes up faster too. Our valves are naturally all closed by 10"-5" of vacuum, so you aren't losing boost. The problem with some turbos that are mated to engines is that they aren't perfectly matched and have lots of on-boost surge, or bouncing of the surge limit of the compressor. The only fix is to bleed a little boost until the turbo is in it's prime operating range. That's the only time you'd want to bleed off boost on spoolup, besides during launch control.
if i dont want to run a boost controler can i just put a 12 pound spring in the waste gate? if i just run the vacum line straight from the wastegate to the turbo will the boost always be 12psi? throught all rpm's
Hallo,ich have a question. In the video you use a pressure regulator with gauge. I ve looked for something like that in the internet, but I dont found. Is that self builded? It looks like parts from a fuel rail pressure or so on. Can you tell me exactly what it is please? Thank you.
ok so i have a question.. I bought a turbo kit for my 240sx awhile back.. i never really have driven the car much. but i remember the seller telling me the top of the waste gate will not have enough room for the top nipple to bolt on because of the shock tower in the way.... he specifically said * you do not even need the top nibble. just the bottom one. So when i bought a boost controller it came with a T for the top and bottom nipples.. do i need the top nipple on the wastgate ..
I plan on getting the turbosmart EBoost street. but for right now with just the wastegate (no boost controller at the moment). would you set the wastegate preload to max psi attainable with turbo A/R (both turbine side and compressor side) or min. When adding in the boost controller, what preload setting should be on the wastegate? 0 preload = 0psi, Min boost = 15psi, or Max boost = 25-28psi
i worked at honda before as an OJT, there's no turbo installed in thier engine, anyway i got a little idea about turbos, but can somebody tell what happen to your turbo charger if your westgate starts to open early for about 17psi?
so In order to adjustment you spin the screw on top of it ? I'm trying to turbo my 5.3l I read so far max boost is 12 psi but trying to run 7 psi how do I adjust it to only have 7 psi ?
the worst that can happen is low boost. boost controller can only raise boost not lower it. the spring inthe gate determines minimum boost pressure. the correct spot for wastegate line is off the side of the compressor housing or anywhere before the throttle body. after the throttle body can cause the gate to open up during idle.
So...let me get this straight....while my wastegate is closed the turbo is going to spool and when the wastegate is open is when my turbo stops spooling? I get it right? If Im right, then I need to change my spring pre-load because the wastegate is open at 3k-3.5k and makes 5PSi
I have an issue where all of the sudden where I'm not creating any boost what so ever and my friends tell me my wastegste could be stuck closed..all I hear is flutter
I have an external wastegate and I don't know if I really need a manual boost controller or not? what's the worst that can happen if you don;t have a manual boost controller? also is it correct that you should have the boost controller between the vacuum source and wastegate port? please let me know. I appreciate it.
Bigger diesels dont use wastegates,the reason being that the rev range is narrow, a wastegate is needed when u want full boost early in the rpm so a turbo with over capacity is used otherwise boost would goto high or u would only get max at max rpm or power . the new range rover diesel has 2 small unwastegated turbos aswell, wierd eh?
why not just use a boost controller which just limits the amount of pressure getting to the wastegate which in turn makes it open later and is alot easier then trying to adjust or change spring settings
Can you please watch this video: ua-cam.com/video/B4l-0zH00nI/v-deo.html The wastegate opens and close very often, you can hear the bsss-bss-bs sound when shifting. But why does the wastegate not just open and close one time just like the rally cars nowadays? I really love this wastegate sound! Do you think it is somehow possible to make my Audi S2 Turbo doing that sound by replacing the wastegate?
@synaptic1 thats not strictly true. I could show you a V16 fire pump engine with 2 turbos big enough to suck in small children and they do not run wastgates
generally it'll just be a lifted assist via vacuum, or vented to atmosphere if you dont need the assisted lift (the vac helps it pop to full open faster, if you have boost spikes you this can help you) without boost spikes you can leave it as is
The Synchronic line of products are available by registering at SYNAPSEENGINEERING*COM/CART, use referral code UA-cam when you register and be eligible for limited edition designs and market pre-releases
hi i have an internal 5 to 20psi adjustable wastegate on a Td05 big 16g turbo ..my question is when the wastegate is fully open ,do i get max psi on this turbo? or when opens a litte? my stock talon tsi is set at 10psi but now im getting 5psi ..i fixed all the boost leaks and still 5psi ..thanks
I still love my Synapse 50mm. Just put in the 40mm seat, Spring B, and stiff preload spring in my turbo LS 67 firebird. Using Ports C & D now sits at ~12psi on the low setting on my dual stage controller. I wish Synapse was still around. What a cool concept.
This is a very informative and well constructed video. 5 stars sir!
what i like is the screw on the top. makes it alot more easier. i love that, my bov the only way to adjust anything is to take off the top cap. good video
Really good explanatory video 👍🏿
question: is it better to have correct spring in westgate and control boost just by that or have weaker spring and control boost via boost control?? i know in 1st version You wont be able change boost level without changing spring but are there any cons with boost controller apart of easy level change??
I'd like to know as well
a@@pnwmidnightclub2939 aparently its better to have weaker spring and use boost controller than having spring with target boost rate, with weaker spring boost controler will hold westgate closed till desired pressure so boost will come more agressively, with target spring rate it will crack open before max boost - had this response on different channel and make sense.
@@jankesbmw oh ok thanks you helped me out I'm gonna get a 5lbs spring
excellent vid & info!!
if the wastegate wont leak, you will spool quicker. without the diaphragm, you also benefit when temperature changes since its not affected as much. it also has interchangeable valve seats and springs for even more options. with the vacuum ports, you can change boost easily. its a boost controller and wastegate in one. you can use the preload on the wastegate to fine tune boost levels.
very well explained!
do u use external wastegate as a standard internal one would not be able to waste enough for performance/ extreme boost.
I run adjustable bleed valve on a TD, u can also get pre set valve arrangement to adjust boost, 2 one way valves, one adjustable, arranged in parralel but in opposite directions, the valve feeding waste gate is adjustable, the other allows the wastegate to close again.
I bet u get some insane BHP turboing big V8's?
bottom line is that if however your turbo spools with the wastegate shut is the fastest you'll get your turbo to spool. But if your wastegate is cracking open too early, then you can use addl spring pre-load to get it to open later to help your spool time.
If I under standerd correctly backly your seting the turbos max bust you would want right?
cool. i love mine. its a wastegate and boost controller in 1! you are designing a boost controller now arent you?
Questions:
1. Does adjusting the preload vs. changing the spring essentially have the same effect. Is one preferred over the other?
2. If you're trying to reduce spool up time, is it ideal to have the stiffest spring possible that doesn't result in over boosting? It seems odd that you'd want to bleed boost prior to hitting max boost, as it'd just reduce mid range torque. Thanks!
Sort of, adding pre-load to any spring means you're adding force required to open the valve. A high rate spring vs a low rate spring, means that the spring lifts (opens) slower, conversely closes up faster too. Our valves are naturally all closed by 10"-5" of vacuum, so you aren't losing boost. The problem with some turbos that are mated to engines is that they aren't perfectly matched and have lots of on-boost surge, or bouncing of the surge limit of the compressor. The only fix is to bleed a little boost until the turbo is in it's prime operating range. That's the only time you'd want to bleed off boost on spoolup, besides during launch control.
if i dont want to run a boost controler can i just put a 12 pound spring in the waste gate? if i just run the vacum line straight from the wastegate to the turbo will the boost always be 12psi? throught all rpm's
Hallo,ich have a question. In the video you use a pressure regulator with gauge. I ve looked for something like that in the internet, but I dont found. Is that self builded? It looks like parts from a fuel rail pressure or so on. Can you tell me exactly what it is please? Thank you.
ok so i have a question.. I bought a turbo kit for my 240sx awhile back.. i never really have driven the car much. but i remember the seller telling me the top of the waste gate will not have enough room for the top nipple to bolt on because of the shock tower in the way.... he specifically said * you do not even need the top nibble. just the bottom one. So when i bought a boost controller it came with a T for the top and bottom nipples.. do i need the top nipple on the wastgate ..
I plan on getting the turbosmart EBoost street. but for right now with just the wastegate (no boost controller at the moment). would you set the wastegate preload to max psi attainable with turbo A/R (both turbine side and compressor side) or min. When adding in the boost controller, what preload setting should be on the wastegate? 0 preload = 0psi, Min boost = 15psi, or Max boost = 25-28psi
Im thinking of running 30-35psi of boost through my external gate , what spring rate in PSI should I be using 14,20,22psi ?????????
30-35 psi spring? combine more than one
@goodhart253 Im sure he meant electronic boost controller, and they do start at around $300.
Are all pre load springs located on top of the waste gate or are some models different? In order to adjust pre load.
you cant yet. probably around the 25th of may they will be available to distributors. correct me if im wrong peter
i worked at honda before as an OJT, there's no turbo installed in thier engine, anyway i got a little idea about turbos, but can somebody tell what happen to your turbo charger if your westgate starts to open early for about 17psi?
Are you still around Synaptic1? I had a couple questions
Yes, every turbo diesel has a wastegate. But they are usually using integral/internal wastegates
so In order to adjustment you spin the screw on top of it ? I'm trying to turbo my 5.3l I read so far max boost is 12 psi but trying to run 7 psi how do I adjust it to only have 7 psi ?
Port C+D is lowest boost, besides that you'll need a softer spring
How would one adjust the preload on a wastegate like that?
What wastegate can I use for 8 psi or less thank youu
the worst that can happen is low boost. boost controller can only raise boost not lower it. the spring inthe gate determines minimum boost pressure. the correct spot for wastegate line is off the side of the compressor housing or anywhere before the throttle body. after the throttle body can cause the gate to open up during idle.
i was wondering whats the difference between the 50mm and 40mm? more air flow?
Where is the waste gate located on a turbo setup? whats it bolted to?
haha I was waiting for him to start using his Rock voice
So...let me get this straight....while my wastegate is closed the turbo is going to spool and when the wastegate is open is when my turbo stops spooling? I get it right?
If Im right, then I need to change my spring pre-load because the wastegate is open at 3k-3.5k and makes 5PSi
@synaptic1 my boost controller was $20. its a regulator similar to the one in the video
What is the difference of internal/integral wastegates? Or is it just two different names for the same type?
Internal wastegates are located on/in the turbo itself but external wastegates would usually be bolted to the exhaust manifold
so do you tighten to increase or decrease boost?
Tighten, righty tighty increasy boosty
I have an issue where all of the sudden where I'm not creating any boost what so ever and my friends tell me my wastegste could be stuck closed..all I hear is flutter
I have an external wastegate and I don't know if I really need a manual boost controller or not? what's the worst that can happen if you don;t have a manual boost controller? also is it correct that you should have the boost controller between the vacuum source and wastegate port?
please let me know. I appreciate it.
@natskyle72 You would do that ideally, but there are lots of beginners that don't want to spend the $300-$500 on a boost controller right away
@LittleBanditMicra Not all turbo Vehicles have Waste-gates. They are new.
great video 10 star
But what does the waste gate do to benefit?
Bigger diesels dont use wastegates,the reason being that the rev range is narrow, a wastegate is needed when u want full boost early in the rpm so a turbo with over capacity is used otherwise boost would goto high or u would only get max at max rpm or power . the new range rover diesel has 2 small unwastegated turbos aswell, wierd eh?
good job mate.got it sussed now
early International diesel's boost is regulated by fuel/exhaust gas flow
Yes, around the end of May
why not just use a boost controller which just limits the amount of pressure getting to the wastegate which in turn makes it open later and is alot easier then trying to adjust or change spring settings
So you had to crank the preload adjustment all the way in for only a 3psi increase? Oh boy! O.o
@synaptic1
Exactly what boost controller costs 300-500 dollars?!? lol
Can you please watch this video: ua-cam.com/video/B4l-0zH00nI/v-deo.html
The wastegate opens and close very often, you can hear the bsss-bss-bs sound when shifting. But why does the wastegate not just open and close one time just like the rally cars nowadays? I really love this wastegate sound! Do you think it is somehow possible to make my Audi S2 Turbo doing that sound by replacing the wastegate?
watch the video again and listen.
@synaptic1 thats not strictly true. I could show you a V16 fire pump engine with 2 turbos big enough to suck in small children and they do not run wastgates
My wastegate just has a hole in the top??
generally it'll just be a lifted assist via vacuum, or vented to atmosphere if you dont need the assisted lift (the vac helps it pop to full open faster, if you have boost spikes you this can help you) without boost spikes you can leave it as is
These are CLEARLY not internal wastegates. They are external that mount to the manifold. So you wrong about the part in the parenthesis.
seem like its defective. air escape from somewhere. unless using unstable air compressor.
is it just me or does this guy sound like jack black?
Wrong!
I work with diesel powered trucks everyday, and some do not have wastegates. They are limited by fuel flow!
Good explanation but you dont show how to do this
On the wast gate
The Synchronic line of products are available by registering at SYNAPSEENGINEERING*COM/CART, use referral code UA-cam when you register and be eligible for limited edition designs and market pre-releases
ebay £10 and do the job just fine
You sound like jack black.
I get that sometimes, product of 4 languages spoken and SoCal upbringing
hi i have an internal 5 to 20psi adjustable wastegate on a Td05 big 16g turbo ..my question is when the wastegate is fully open ,do i get max psi on this turbo? or when opens a litte? my stock talon tsi is set at 10psi but now im getting 5psi ..i fixed all the boost leaks and still 5psi ..thanks