Wastegate springs...cdm springs
#1
Wastegate springs...cdm springs
Here's the deal...38mm cdm external wastegate (cheap xs-power junk :1) and it has a spring that hits 3.63 psi. I think I'm going to up the boost with a spring change that way I don't have to crank the mbc as much. They sent me a second spring with the wastegate (one that wasn't installed in it) that's a yellow color. Now according to ssac's site the small yellow is rated at 3.63 like it hits, but what the hell is this other yellow one for? They have a large yellow listed for 1.3bar or some crazy ----, but is that with the 2 yellow springs combined? Pretty much what I want to know (if someone know's off the top of their head) is what my pressure would be at with this other yellow spring only?
#3
Re: Wastegate springs
Originally Posted by slo_crx1
Here's the deal...38mm cdm external wastegate (cheap xs-power junk :1) and it has a spring that hits 3.63 psi. I think I'm going to up the boost with a spring change that way I don't have to crank the mbc as much. They sent me a second spring with the wastegate (one that wasn't installed in it) that's a yellow color. Now according to ssac's site the small yellow is rated at 3.63 like it hits, but what the hell is this other yellow one for? They have a large yellow listed for 1.3bar or some crazy ----, but is that with the 2 yellow springs combined? Pretty much what I want to know (if someone know's off the top of their head) is what my pressure would be at with this other yellow spring only?
JP
#4
Re: Wastegate springs
Originally Posted by samson
Dan told me that TiAL's big yellow is like .8bar = 10.17psi. Who knows with them though.
JP
JP
#7
Re: Wastegate springs...cdm springs
you could always rig it to a air tank somehow with a regulator and open it slowly and watch the gauge.. i think that would work. i tried to test a internal gate i rigged like this once but i just had a gauge hooked up no way to control the air pressure smoothly so it didnt work well
#8
Re: Wastegate springs...cdm springs
Your idea may sorta work, but not well enough to tell spring pressure rate on the wastegate. More than likely it'll start opening almost right away, and how far it opens is how it controls your boost. Besides that, most pressure regulators don't go low enough to measure accuately.