Wastegate single vs dual...
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Wastegate single vs dual... It seems to be common for people with new turbo builds to have initial issue with the waste gate springs and making boost. I have heard of others using dual wastegates.
So what is the deciding factor in weather to go single or dual here? I was thinking about going dual JGS 40mm, but it was recommended to me, and I would like to know what the criteria is.
So what is the deciding factor in weather to go single or dual here? I was thinking about going dual JGS 40mm, but it was recommended to me, and I would like to know what the criteria is.
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Joined: Oct 2014
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Obviously 2 will cost more and take up more room than 1. What I am looking for is what is the determining factor on when it is necessary to go with 2? Is it a boost level? Is it a matter of better controlling to boost?
A lot of people choose twins if they are trying to keep the exhaust divided all the way to the turbo. There is no "point" at which you have to go to twins really. Only really when you outgrow a 60mm single. Which will take a while. lol
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Looking for the "how and why" here.
If the turbo has a divided turbine housing like so:
than it can help spool times if you keep the exhaust divided (not merged together) all the way to that point. Here is a pretty good example of doing this in Dan Smith's thread, he does the divided exhaust with a single wastegate:
There is some good info starting at about post #60:
ls1tech.com/forums/forced-induction/1510539-turbo-firehawk-build-up-v-3-0-aes-385-s88.html
And by take a while, I mean, you have to have one HELL of a setup to need a wastegate bigger than a single 60mm.
than it can help spool times if you keep the exhaust divided (not merged together) all the way to that point. Here is a pretty good example of doing this in Dan Smith's thread, he does the divided exhaust with a single wastegate:
There is some good info starting at about post #60:
ls1tech.com/forums/forced-induction/1510539-turbo-firehawk-build-up-v-3-0-aes-385-s88.html
And by take a while, I mean, you have to have one HELL of a setup to need a wastegate bigger than a single 60mm.
Last edited by 93camaro_zzz; Nov 11, 2014 at 11:10 AM.
