Rob P's Custom Turbo Questions
Originally Posted by rhyzin
okay, i read that. if i read it correctly, the wastegate doesn't rely on manifold pressure anymore and relies on the tension of the spring in the wastegate to open at certain boost pressures? that's kinda iffy with me unless someone has tried this on the t25. its has grounds for working and stopping boost at a certain psi, but you may also leak boost down low. a proper wastegate should prevent leaks during spool up. i personally have not really seen this method before. are there a lot of instances where people do this?
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apparently it doesn't update if i edit the last post....
okay, here's a semi decent question to ask. how does a mechanical oil pressure gauge work? keep in mind i said mechanical, not electrical. oh, and on that same subject, if you can give me an argument for using either, i'm all ears.
okay, here's a semi decent question to ask. how does a mechanical oil pressure gauge work? keep in mind i said mechanical, not electrical. oh, and on that same subject, if you can give me an argument for using either, i'm all ears.
Originally Posted by datdjrobp
okay, so with a mechanical one i'd actually have oil running into the cabin? that sounds like a mess..... 
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i still think i'm going to get an external wastegate and set it lower for now. i know 9 is the absolute upper limit of what stock internals can handle but i don't want to push my luck.
EDIT: i also still haven't confirmed this wastegate is set at 9psi.
EDIT: i also still haven't confirmed this wastegate is set at 9psi.
Last edited by datdjrobp; Oct 10, 2005 at 12:49 PM.
yowza. looks like any hopes of an external wastegate is going to have to be pre-turbo. that turbine outlet flange must be a euro thing. i don't think i've ever seen that style on an import for a t-25.
threads on the wastegate? not that i've ever seen. it even has a flange for the wastegate to mount on. i haven't seen one of those either. it seems like a t25, but it's really weird. i'm sure it's just a euro thing.
i guess the threads are just to make it adjustable. it can adjust the tension of the wastegate onto the wastegate flapper. kinda like from the link silkymp posted, but not quite the same purpose. anybody else seen this version of the t25?
i guess the threads are just to make it adjustable. it can adjust the tension of the wastegate onto the wastegate flapper. kinda like from the link silkymp posted, but not quite the same purpose. anybody else seen this version of the t25?
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that's kinda what i was wondering. so i could basically, in theory, apply my own boost leak in order to keep it under 9psi?
well, as is normal with most things i do, i run into the oddball situation. Yoo Neek!
well, as is normal with most things i do, i run into the oddball situation. Yoo Neek!