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The mkiv Supra Owners Club

Problem with my wastegate


neil

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Hi people

I need help I have a xs power wastgate wich doesn't have a strong enough spring in it the turbo is only producing 12 psi wich is making the same bhp as my twins

 

Can any body suggest any ways to make the spring stronger or do I need a new spring ??

Thanks Luke and Neil

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No boost controller just relying on the wastegate. Would you recommend putting air in the wastegate would that work ??

 

Wastegates operate with a vacuum. Shoot air into it and nothing will happen. I tried it for fun once :)

 

Contact XS. They usually reply fairly quickly. What does your boost gauge say. If the spring is a 12 psi spring the wastegate is working fine. There could be another issue somewhere else.

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I have a ecu that can have one fitted and I think it dose controle the boost not sure but I have to order it and not got te cash is any body selling one on hear for not much

Bitt anoyed but it all ways happen

Luke Neil's son

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That is a 'bleed valve' type manual boost controller, it would work but it wouldn't control the boost pressure as well as a 'ball and spring' type manual boost controller (like I posted the link to). A bleed valve simply bleeds away some of the air to the wastegate, a ball and spring manual boost controller opens the valve once the desired boost is reached, there's a more detailed explanation of the 2 types here: http://www.boostcontroller.com/display_page.php?i=22

 

Do a Google search for 'ball and spring manual boost controller' there are loads of different ones available.

Edited by Nic (see edit history)
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