Question about 1997 Mitsubishi Eclipse

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97 eclipse gst

I need to know where the nut on the rod of the wastegate should be positioned for a 16g turbo on a stock gst

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  • skaterdude17 Jul 28, 2008

    well would it be less expensive to take it to someone else or to just put in a boost controller and try to do it myself? its a brand new turbo 16g and i installed it but i dont know where the nut should be positioned and want my car back on the road as quickly as possible and cheap if i can manage it lol

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It's going to be hard to pinpoint that - with age and time, the wastegate and related parts can start to wear out, so that may need to be repositioned to keep the proper boost level. I know your car comes with a boost gauge, but do you have an aftermarket one? They're much better - the OEM boost gauge is not accurate enough to do much other than tell you whether you're in boost or vacuum. With an aftermarket gauge, you'll know what pressure you're actually making. With that, you can tweak the nut so that the wastegate opens at the proper point. Or you could get an electronic boost controller (used GReddy PRofec II units are available on eBay for less than $150) and really give yourself accurate boost control.

Posted on Jul 26, 2008

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okay, for a 16g on a 2g you should get an install kit. its the easiest way to do it. you could also piece your own together. i would recomend getting one HERE .

for a complete step by step guide w/ pics, check out the VFAQ

now i hope your 16g came with a wastegate actuator because you can't use the one off of the T25. if it didn't come with one, you can use a 1g actuator off of either the 14b or the 13g.
dddb702.jpeg
now, the internal wastegate/wastegate actuator isn't adjustable.
for more boost, you can get a boost controller, or
if you want to increase your boost by 2-3psi you can remove the restrictor in the wastegate solenoid. here is a step-by-step guide for removing it.
(if you want to run more boost than that your gonna want to get larger fuel injectors first.)

if your just running a stock ecu, no tuning is required. but if you already have a tunable system (like DSM Link, E-manage, AEM or even a SAFC) it wouldn't hurt to adjust the tune a little.

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