Printable View
What do you think moves the diaphragm then? All wastegates have springs, just the internally gated set ups have the rod attached to the diaphragm & spring to open up a flap in the rear housing to allow excess air flow throughQuote:
Originally Posted by mugen_ctr
ah my bad, an yes, that is true.Quote:
Originally Posted by stndrd
And on that note, this does explain why u need a boost controller, as it allows/limits the amount of pressure that enters the actuator thus allowing the flap to open/close at certain pressure....
One common problem with internal gated ive ran across was boost spiking, though running a EBC does help alot, for those who run a manual bleed valve its not a pretty sight!
Simple answer NO.
if your using a standard turbo with an internal wastegate/actuator = NO.
If your internal wastegate/actuator has an adjustable ROD = YES
If external wastegate/spring = YES
If boost controller = YES
IF during a dyno tune = NO (yet again - define what dyno tune really involves?)
IF your running an after marker ECU with boost controller option = YES
People are saying by playing around/tampering with your internal actuator adjusts boost then they are wrong!
You cannot tamper with your internal actuator as they are Diaphragm/spring loaded, and if u dent the actuator housing, this will cause the Diaphragm/spring to malfunction.
Best thing is buy a boost controller or buy the optional boost controller/module for an aftermarket ECU.
just to answer the theory below;
[What moves the Diaphragm/spring in and out is the amount of forced controlled pressure vs vacume pressure within the turbo setup.Quote:
Originally Posted by mugen_ctr
There is a spring in the internal actuator which is under the diaphragm - this is controlled by the pressure within the engines gases. i.e Vacume, Exhaust etc,
External Wastegates = are spring loaded and do not have diaphragms. - Boost is controlled by the spring density rating.
Put your pedal down = builds up pressure by the turbo spooling (actuator closed), once released the vacume acts and opens up the actuator which then releases the excess exhaust gasses into your dump pipe.
Here is a great write up all about turbo setups.
http://www.beesandgoats.com/boostfaq/g2icturbo.html
learn something new errday.
http://www.ozhonda.com/forum/customa...ar11786_20.gif
Jesus Christ how interesting lol
never knew that
Mine has a spring and a diaphragm...Quote:
Originally Posted by mugen_ctr
if internal then YES - it will have both Spring and Diaphragm.Quote:
Originally Posted by xenonkuraz