noob question here.. can boost be increased without any sort of boost controller? say with a dyno tune?
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noob question here.. can boost be increased without any sort of boost controller? say with a dyno tune?
how is a dyno tune gonna increase it, when you dont actually have a way to adjust it?!!?!???
think of it this way. you have a light globe and a light switch. its on or off. one level of brightness.
then you have another light globe but its hooked up to a dimmer switch. you can adjust the brightness. This is just like a boost controller.
Pretty much what youre asking is, can you use a volt meter to adjust the brightness of the globe with just an on/off switch.
the answer is no.
You can to a degree, but not via dyno tuning. By altering the spring rate in the waste gate, you can alter what boost setting you run at. This can involve alot of f**king around and for all the time you waste, I would just go and by an electronic boost controller and be done with it =]
cihanvtec - not sure if you got past all that but what trism is implying is no you cantQuote:
Originally Posted by trism
thanks guys, that makes perfect sense. any idea how easy they are to install? or what sort of place would install one?
really appreciate it guys, cheers.
i can fit electronic boost controller for you. pm me to organise
You CAN adjust boost WITHOUT a boost controller. You do not NEED a boost controller. Setting a boost level is quite often done by the tuner via a dyno. The dyno itself cannot adjust boost, its up to a person.
Two types of turbos. INTERNAL wastegate and EXTERNAL wastegate.
Internal is adjusted by the actuator. This is adjusted via the arm that opens the wastegate. this can be adjusted longer or shorter to adjust when the gate opens or closes. You do not need a boost controller.
External is adjusted via the spring inside it. You can get 5 psi, 7, 10psi etc. You do not need a boost controller.
thank you very much for that. thats what i was after. so once i get my car tuned, the tuner will be able to either adjust the boost level to an aggressive level or a safe tune running low boost? just really shady on the whole thing since im new to boosting. thanks guys.
Alot of oem turbo cars are internal gated setup, as they are compact and can be low mounted and cheaper to manufacture.... But in saying that, they are electronic or have boost restrictors to limit the boost, but since u are asking about a turbo kit which is aftermarket, it will most likely come with some sort of a manual boost bleed, or simply run off the actuator to restrict the boost.
If ur after a quick fix, any simple manual boost bleeder would do the trick!
No need to go EBC, cause ur not tuning it for track or dyno queen...
You just need to change the spring on the wastegate's actuator to adjust boost pressure to a certain extent.
Why do people insist on giving the wrong info...
Just get a boost controller an be done with it LOL
A standard internal gated turbo doesnt have a spring but a diaphragm, a spring is what they use on many external type waste gateQuote:
Originally Posted by xenonkuraz
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