Custom turbo-how to regulate boost?
#1
Custom turbo-how to regulate boost?
Say I got a 14g eclipse turbo with a built in wastegate and used it for my turbo setup. How would I go about regulating the boost down from stock since its stock psi is too high for my engine? I can't adjust the wastegate since its internal, and my manifold would need to be welded to have a hole for an external wastegate, so I would rather stick with an internal wastegate turbo. I'm trying to get my custom setup done ASAP, so any help is appreciated. Thanks in advance.
#3
Re: Custom turbo-how to regulate boost? (espanol)
You honestly don't think that 12-14psi is too much for a completely stock engine? I know for a fact that my weak SOHC D16 can't handle that. So, how do I regulate the psi?
#4
Re: Custom turbo-how to regulate boost? (OKSolSi)
That turbo doesnt run stock at 12 psi. It may be ECU controlled to give more boost and run maybe 12 psi on a mitsu, but the wastegate it self should open around 7-8psi. I'm not sure on teh exact number, but it wont be that much boost stock. IF you wanted to go lower I beleive you can cut the actuator rod, snip out a bit, thread the ends and reconnect with a coupler. But I'm not 100% sure on how this setup works. maybe one of the guys with a little more experience could shed some more light.
Jim
Jim
#5
Re: Custom turbo-how to regulate boost? (jwork101)
OK, that's good news. I thought I ran into another speedbump with my setup. The snipping of the actuator arm sounds logical, but I doubt it would be necessary. Thanks for the help.
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Re: Custom turbo-how to regulate boost? (OKSolSi)
I'm not sure of what the 14g (or did u mean 14b off the 1g dsm's) w/g boosts stock, but a friend of mine has a t-25 and he coudln't keep it below like 10psi. He bought a $60 wastegate canister from TEC with a 6psi spring... problems solved.
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