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The mkiv Supra Owners Club

J-Spec Hybrid Twin Turbos (steel turbine wheel)


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JDM spec hybrid turbos rebuilt less than 5K miles ago.

 

Upgraded steel shafts and turbine wheels to remove the weak point of the standard jap ceramic wheels.

 

Upgraded compressor wheel, same as the one used in hybrid Cosworth turbos rated to 25 psi+ according to the place that rebuilt them.

 

Suited to 1.5 bar using the standard supra manifold.

 

You will have to use the wastegate turbine housing off your 1st turbo as I was using these with a modified manifold and an external wastegate so my housing is welded up.

 

Highly recommend boring your wastegate hole out as big as possible so that the flap only just covers the hole as this is a restricting point on the JDM turbos.

 

Can include any of the standard boost pipes, intake pipes, water/oil feeds etc. if needed.

 

£400 delivered

 

p.s. just to confirm, they came on an engine already hybrid which I was told when purchasing. I have since had them rebuilt which the place confirmed they are hybrid wheels and gave me the info about being the same as a cosworth upgrade and the steel turbine wheel can obviously be checked easily looking at them.

 

Few pics of the wheels as requested:

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  • 5 months later...
will these fit a 1jz engine?

 

No idea, if the 1JZ uses CT20 turbo's then maybe, i'd say if so you could just swap the cores out but i'm not sure in the compressor housing maybe machined slightly for the different compressor wheel so these are probs best as they are but have a look what parts are interchangeable.

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  • 1 month later...
  • 4 weeks later...
is it just the way im looking at it or is the wategate welded shut in the last pic

 

read the description, I was using an external gate on a modified manifold, it would simply need a standard exhaust housing putting on

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  • 2 months later...
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