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The mkiv Supra Owners Club

swapping an external wastegate


gaz1

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The XS power manifold has a retangular wastegate flange, but most wastegates have a square one. I don't know of any wastegates you can bolt directly on to it :( It's a manifold off job to get the flange cut off and new ones added I think.

 

Why are TF not doing this for you??

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  • 4 weeks later...
The XS power manifold has a retangular wastegate flange, but most wastegates have a square one. I don't know of any wastegates you can bolt directly on to it :( It's a manifold off job to get the flange cut off and new ones added I think.

 

Why are TF not doing this for you??

 

 

does the car have to be remapped after this mod?

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its going to need doing as its not holding apparently shown on the mapping charts. i think boost creep was the term, he said it was basically due to the XS wastegate.

 

Typical fault on the XS power one (though thankfuly mines been okay so far).

 

It will need remapping though as I wouldn't have thought you could map one if it was overboosting.

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Typical fault on the XS power one (though thankfuly mines been okay so far).

 

It will need remapping though as I wouldn't have thought you could map one if it was overboosting.

 

hmm think I best get this sorted then what wastegate and size would you recommend best suited to the turbo aplication I have, I will cut and modify the manifold myself to make the lot fit

 

thanks for your help

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The HKS and Tial ones are what most of the 'real' ;) experts have recommended.

 

Size wise the manifold can fit 50mmm or below. I think the HKS is 50mm, the Tial 44mm. The size doesn't really matter though, 44mm is more than enough for our power levels.

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The HKS and Tial ones are what most of the 'real' ;) experts have recommended.

 

Size wise the manifold can fit 50mmm or below. I think the HKS is 50mm, the Tial 44mm. The size doesn't really matter though, 44mm is more than enough for our power levels.

 

Thanks mate ;)

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