External wastegate spring??

Sleeper

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Say I have an external wastegate with a 9lb spring & I only wanna boost 3.5-4lbs how do I boost lower then the spring setting with out changing the spring?
 

bcivic94

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a boost controller is the answer to your question.
 


Sleeper

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bcivic94 said:
a boost controller is the answer to your question.
Thats what I was thinking.. But I wasnt sure if the wastegate would actually set the boost lower then the set spring psi
 

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So is a MBC the solution? I dont wanna blow my s**t up cuz I its boosting to much with the wastegate
 


Shiznit

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no you cant boost less than your wg spring. your gate wont open if you boost less which is very hazardous to your engine
 

Sleeper

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well that just f**king sucks... now I got to buy a spring & wait f**king forever to get it
 

Shiznit

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basically if you use a 9lb spring and only plan on boosting 3.5-4 lbs then you run the risk of your boost spiking until it reaches 9lbs and at that point you may blow your engine

EDIT: Heres a good link that explains how Wastegates and BOV's work Clicky
 

ReggieSD

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Shiznit said:
basically if you use a 9lb spring and only plan on boosting 3.5-4 lbs then you run the risk of your boost spiking until it reaches 9lbs and at that point you may blow your engine

EDIT: Heres a good link that explains how Wastegates and BOV's work Clicky
exactlly what i was gonna say...usually on a sohc turbo you can boost a 7lb. spring and be ok. i can't remember how much psi that was running on my boost gauge but that was normal driving(i think it was around 5-7 psi). so you might wanna consider changing the spring.
 

Sleeper

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So can I use a manual boost controller to turn down the boost temporaly till the new spring comes in, if I dont race it, just easy driving???
 

Going-West

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how come you only want to boost 4lbs? is it because you don't have the front mount yet?
 

bcivic94

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The Grim Sleeper said:
So can I use a manual boost controller to turn down the boost temporaly till the new spring comes in, if I dont race it, just easy driving???
yes you can, it is true you can see bost spikes, but you are always going to be prone to boost spikes useing a mbc even to boost higher then your wg spring.
 

Mr.Luder

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so if i wana boost and i don't get a boost controller, my waste gate springs is set at 7psi...than i'll be only boosting 7psi right?
 

Going-West

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Mr.Luder said:
so if i wana boost and i don't get a boost controller, my waste gate springs is set at 7psi...than i'll be only boosting 7psi right?
yes
 

bcivic94

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Shiznit said:
basically if you use a 9lb spring and only plan on boosting 3.5-4 lbs then you run the risk of your boost spiking until it reaches 9lbs and at that point you may blow your engine

EDIT: Heres a good link that explains how Wastegates and BOV's work Clicky
9 pounds shouldnt blow up you motor IF your motor isnt beat to s**t and your using bigger injectors i dont know what your set up is, but you motor should be able to easly handle 9 psi as long as is in good condition and your not running stock injectors. like i said i dont know your set up but you have supporting mods for the turbo then you should be able to drive it around at 9 psi as long as your not beating on the car. a nice easy drive on 9 pounds until a tune and i wouldnt even worry about spending the extra money on the mbc.
 

Mr.Luder

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Going-West said:
thanks for putting it simple LOL!

but yea I'm plannin on to FMU instead of injectors. I know that FMU sucks but it's cheaper than injector's fuel tuner.
 

bcivic94

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Mr.Luder said:
thanks for putting it simple LOL!

but yea I'm plannin on to FMU instead of injectors. I know that FMU sucks but it's cheaper than injector's fuel tuner.
i know it sounds like a good idea just useing the fmu right now but you will pay for it in the end. i know many people have told you already but its a bad idea. a fmu brings the duty cycle of the stock injectors much higher then they should leaving the possiblity for injector failure. there is a website something like tunertoys.com that sells their own injectors for like 199 or something it is deff worth the money.
 

Shiznit

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i recommend this to everyone but if youre in the game for building a custom turbo kit then honda-tech's forced induction classifieds is where you should be looking for almost everything. 450cc dsm injectors with resistor box and clips can go for as low as $90. thats where i pieced together my kit
 

Mr.Luder

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would a 5 bolt t3 turbo fit a h22? cause thats wut i have
 

soldiaboy

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Shiznit said:
i recommend this to everyone but if youre in the game for building a custom turbo kit then honda-tech's forced induction classifieds is where you should be looking for almost everything. 450cc dsm injectors with resistor box and clips can go for as low as $90. thats where i pieced together my kit
very true
I peiced my kit from ht. my total was a lil bit over 2 grand. now I just need the funds
 

Sleeper

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My wastegate is a piece of s**t... I getting rid of it. Sad thing is the piece of s**t is brand new. Oh yeah Ive havent even hit $800 piecing my kit together yet. & its all manly new s**t... & I got my 450cc injectors for $60
 


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