7lb wastegate spring
#1
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7lb wastegate spring
Whats the limit to PSI i can run with my 7lb spring?? I searched, and am sure there is a general rule for spring rates and PSI, i am just not aware of it...
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Originally Posted by SRap1,Jun 21 2010, 05:03 AM
anything above 7psi, springs only limit the least you can run, a boost controller can run anything above that
Im looking to get tuned at around 22 lbs so i guess i need a 10lb spring.
#5
The wastegate spring is just that, a spring. A 7 psi spring just means that at 7psi, the spring compresses, and the wastegate opens. It's really that simple. Thus, anything more than 7 psi will have the wastegate open. All a boost controller does is prevent boost/vacuum from getting to the wastegate until a set psi, and then it essentially opens a valve and boom, the wastegate opens limiting boost. A 7lb spring is fine for higher levels of boost, just use a cheap manual boost controller or whatever.
#7
Originally Posted by JuicedS2K,Jun 21 2010, 08:08 AM
well now that i just found it, im seeing you can only double the spring rate. i.e. with a 7lb spring i can only hold about 14 lbs of boost.
Im looking to get tuned at around 22 lbs so i guess i need a 10lb spring.
Im looking to get tuned at around 22 lbs so i guess i need a 10lb spring.
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#8
Originally Posted by Deception,Jun 21 2010, 09:47 AM
not true.. i have a 6lb spring in my tial, with AEM boost solenoid we were able to hit 18psi on the dyno
#10
Originally Posted by SlowTeg,Jun 21 2010, 05:43 AM
The wastegate spring is just that, a spring. A 7 psi spring just means that at 7psi, the spring compresses, and the wastegate opens. It's really that simple. Thus, anything more than 7 psi will have the wastegate open. All a boost controller does is prevent boost/vacuum from getting to the wastegate until a set psi, and then it essentially opens a valve and boom, the wastegate opens limiting boost. A 7lb spring is fine for higher levels of boost, just use a cheap manual boost controller or whatever.