still got overboost??

stevo-with-the-evo

stevo-with-the-evo

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Aberdeenshire
Shifted boost gauge from where i had it the first time to the dump valve so thats fine now. but still got the problem i had originally when accelerating hard it boosts as far as 22 psi? as tho there nothin to control the boost? :confused::confused:
 
sponners

sponners

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is the car remapped?

what is controlling the boost? ecu or aftermarket controller

have you checked the actuator? as a 'sticky' actuator could cause weird boost control?
 
stevo-with-the-evo

stevo-with-the-evo

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Location
Aberdeenshire
no not mapped and its still the ecu controlling boost. how i know its a sticky actuator?
 
sponners

sponners

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you need to test the actuator then mate.


first off, pull the pipe off the actuator and fit a longer piece to the actuator long enough to get your mouth to it ;)

blow down the pipe.....if you can blow down it then its knackered.

if that is ok then next you need to attach a pump (with gauge) to that pipe and once the pressure rises to about 0.6-0.7bar the actuator should move out smoothly and fully.


check that out then we can go from there.
 
stevo-with-the-evo

stevo-with-the-evo

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Messages
361
Location
Aberdeenshire
1 more stupid question lol i have an idea where the actuator is but not 100% sure?
 
sponners

sponners

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Mid Wales



in the above pic is the actuator rod (the pipe that connects to it is just out of shot in the bottom right of the picture)




it will also be a good idea to check the 'pre-tension' of the actuator which is shown in the pic above

ie with the rod disconnected off the wastegate you should see half a hole(as pic).....so that you have to pull hard against the spring in order to fit it on that last bit.
 
sponners

sponners

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good luck mate.......you might need some plasters as well........for the scraped knuckles :)
 
ElDopesta

ElDopesta

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5,705
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Nuneaton



in the above pic is the actuator rod (the pipe that connects to it is just out of shot in the bottom right of the picture)




it will also be a good idea to check the 'pre-tension' of the actuator which is shown in the pic above

ie with the rod disconnected off the wastegate you should see half a hole(as pic).....so that you have to pull hard against the spring in order to fit it on that last bit.

You forgot the drum roll Sponners.............You know, the one that comes before this infamous pic :whistling: :whistling: :whistling:

I see you have it under control so I will leave it in your capable hands!!!


El
 
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