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The mkiv Supra Owners Club

wastegte spring mod ???


Guest sl1d3r

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Guest sl1d3r

hi guys i know this question has probly been asked a million times i have been searching for a thread or artical on how to do this mod but have come up empty so if anyone has a link on how to do this mod that would be much apreciated manythanks [GRIN][/GRIN]

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Guest sl1d3r

No the wastegate spring mod is used on the mkiv to because of the pressure caused by the turbos the wastgate can be forced to open early and then boost is not held threw the rev range which is the trouble i am having :/ thanks anyways for replying :)

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No the wastegate spring mod is used on the mkiv to because of the pressure caused by the turbos the wastgate can be forced to open early and then boost is not held threw the rev range which is the trouble i am having :/ thanks anyways for replying :)

 

If that's the problem you are having its most likely that the 2nd turbo is not actually coming online due to a stuck vsv valve.

 

Best to put the car into TTC mode to see if that fixes it and then you should know what your issue is straight away.

 

Have a look around about 2nd turbo not coming online and you will see that it is a very common issue.

Well worth doing before messing about with the waste gate spring!!!

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Guest sl1d3r

Thanks for the replys ill try it in ttc mode first i have the restrictor ring in it dosnt over boost she peaks at 18 for a split second and the on holds around 14 psi :/

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