Menu
Home
Post Something
Forums
Current Activity
New posts
Search forums
What's new
New posts
Latest activity
News & Features
The Marketplace
Cars for Sale
Engine and Performance
Chassis and Wheels
Exterior and Body
Interior and Cockpit
ICE - In Car Entertainment
Car Shops and Services
Toys and Wares
All Other Stuff
Jobs and Vacancies
Looking For
Members
Log in
Register
What's new
Search
Search
Search titles only
By:
Current Activity
New posts
Search forums
Menu
Log in
Register
Reply to thread
See what others are reading now! Try Forums >
Current Activity
Home
Forums
Main Forums
Car Talk
Forced Induction & Engine Management
Wastegate Explained.
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="kanan" data-source="post: 4047169" data-attributes="member: 19720"><p>Okeh very detail explaination. Please correct me on this is how I understand from above. my basic knowledge please verify... </p><p></p><p>Wastegate it operates by bypasssing the exhaust gas that is going to enter the turbine housing,to slow down the turbine speed hence control the boost produced by the compressor turbine connected to the intercooler piping inlet. The wastegate start to bypass the exhaust when the pressure in the intercoller piping achieve the spring rated pressure (eg: 0.5 bar in this case). How it knows because there's a small (like brake hose connecting from inter. pipe to the inlet of wastegate actuator). So what pressure in the inter. also will applies to the actuator to open the gate.</p><p></p><p>What the boost controller do is it bleeds the hose(between inter. n wastegate) to achieve the pressure in the intercooler piping as was set by the user (through the lcd monitor). for example I set 0.4 bar, so theoritically boost controller bleeds whatever excess pressure in inter.(more than 0.4 bar in this case) whenever it senses. Say I'm still using the same spring rate as above, I want to achieve 0.8 bar. so i set 0.8 bar in the boost controller. But even at the maximum rev of the engine, I will still cannot get the 0.8 bar in the intercooler . Because In this case even though the boost controller doesn't bleed the pressure in the hose(because it hasn't achieve 0.8 bar) but the wastegate is bypassing the exhasut gas because the actuator in the wastegate already opened when the boost 0.5 bar achieved. so it keeps on opening bypassing the exhasut gas from entering the turbine. so even engine rev high(lots of echaust gas coming out but it doesn't hit the turbine blades) so the turbine speed will maintain as it is. Unless the outlet of wastegate is too small It cannot bleed faster making the targetted boost achievable but with pain to the engine. </p><p>Is sit correct sir?</p></blockquote><p></p>
[QUOTE="kanan, post: 4047169, member: 19720"] Okeh very detail explaination. Please correct me on this is how I understand from above. my basic knowledge please verify... Wastegate it operates by bypasssing the exhaust gas that is going to enter the turbine housing,to slow down the turbine speed hence control the boost produced by the compressor turbine connected to the intercooler piping inlet. The wastegate start to bypass the exhaust when the pressure in the intercoller piping achieve the spring rated pressure (eg: 0.5 bar in this case). How it knows because there's a small (like brake hose connecting from inter. pipe to the inlet of wastegate actuator). So what pressure in the inter. also will applies to the actuator to open the gate. What the boost controller do is it bleeds the hose(between inter. n wastegate) to achieve the pressure in the intercooler piping as was set by the user (through the lcd monitor). for example I set 0.4 bar, so theoritically boost controller bleeds whatever excess pressure in inter.(more than 0.4 bar in this case) whenever it senses. Say I'm still using the same spring rate as above, I want to achieve 0.8 bar. so i set 0.8 bar in the boost controller. But even at the maximum rev of the engine, I will still cannot get the 0.8 bar in the intercooler . Because In this case even though the boost controller doesn't bleed the pressure in the hose(because it hasn't achieve 0.8 bar) but the wastegate is bypassing the exhasut gas because the actuator in the wastegate already opened when the boost 0.5 bar achieved. so it keeps on opening bypassing the exhasut gas from entering the turbine. so even engine rev high(lots of echaust gas coming out but it doesn't hit the turbine blades) so the turbine speed will maintain as it is. Unless the outlet of wastegate is too small It cannot bleed faster making the targetted boost achievable but with pain to the engine. Is sit correct sir? [/QUOTE]
Insert quotes…
Verification
Post reply
The Marketplace Latest
Honda Civic FD JSracing GTwing spoiler
Started by
jeff6126
Exterior and Body
Honda civic FC varis GTwing spoiler
Started by
jeff6126
Exterior and Body
JSracing GTwing spoiler
Started by
jeff6126
Exterior and Body
Proton saga drive68 bodykit
Started by
jeff6126
Exterior and Body
Perodua Bezza projectR body kit
Started by
jeff6126
Exterior and Body
Honda city gm6 drive68 body kit
Started by
jeff6126
Exterior and Body
Toyota Yaris 2019,White ,1.5L,6,082km
Started by
salesarena
Cars for sale
original WedsSport SA70 18x9jj offset +32 5H pcd...
Started by
david tao
Chassis and Wheels
BRAND NEW original rare Yokohama ADVAN Racing RG4...
Started by
david tao
Chassis and Wheels
original rare Yokohama ADVAN Racing RZ2 RZii...
Started by
david tao
Chassis and Wheels
Posts refresh every 5 minutes
Hennessey-tuned SUV leaves GT-R for dead on the strip
http://www.zerotohundred.com/?attachment_id=19860
There are tuners out there that do the just what their title implies, tuning up vehicles with bumps up in power and ensuring that all the supporting hardware and...
Feed Afflux V kit in Malaysia?
Anyone selling the Feed Afflux V kit here? Or any replica around?
Advan RG 17' Gold and BBS LM for Altezza
I have i set of
17" Advan RG gold
and
17" BBS LM Gold Gold
with 5 hole x 114.3 offset +43 front 7.5jj rear 8.5jj suit for Altezza.
Condition Like...
Recent Posts
Recommendation: Turbocharger for 4B11 N.A engine
Started by
Mitevo7
Car Modification
2026 Vios HEV launched with Local Battery Assembly - UMW Toyota Motor
Started by
The_Mechanic
News and Features
SPPF: The Future of Automotive Surface Protection - A Technical Overview
Started by
The_Mechanic
News and Features
Upping Wira 1.5 MMC performance
Started by
Nyfka
Car Modification
Volvo Malaysia Launches Locally Assembled ES90 Electric Sedan
Started by
The_Mechanic
News and Features
Search
Online now
jeff6126
Enjoying Zerotohundred?
Log-in
for an ad-less experience
Home
Forums
Main Forums
Car Talk
Forced Induction & Engine Management
Wastegate Explained.