Just made some quick measurements on the two turbine wheels here -
Both have a 'major' dimension (nearest centre bearing) of ~58mm
S2 turbine has a 'minor' dimension of ~44mm whereas the RS2 is ~52mm
The S2 hotside housing diameter is ~46mm against the RS2 diamater of ~54mm.
My measurements aren't exact... but it would appear that a turbine with a minor dimension of something in the region of 48mm would be a candidate for this small hybrid application.
I'll get professional advice on the cracks in my S2 hotside before suitable machine operations to replace the two hacked studs and increase the turbine hole to ~50mm.
I'll keep the RS2 compressor as it is and see how that one maps out... My guesstimate is about 320-330bhp with 98RON and an RS2 intercooler and I'm reasonably confident of less lag and quicker spool than RS2 - by nature of the smaller A/R and turbine wheel.
If it doesn't work out then I can always machine the housing bigger again to take the RS2 turbine wheel.
Paul
Both have a 'major' dimension (nearest centre bearing) of ~58mm
S2 turbine has a 'minor' dimension of ~44mm whereas the RS2 is ~52mm
The S2 hotside housing diameter is ~46mm against the RS2 diamater of ~54mm.
My measurements aren't exact... but it would appear that a turbine with a minor dimension of something in the region of 48mm would be a candidate for this small hybrid application.
I'll get professional advice on the cracks in my S2 hotside before suitable machine operations to replace the two hacked studs and increase the turbine hole to ~50mm.
I'll keep the RS2 compressor as it is and see how that one maps out... My guesstimate is about 320-330bhp with 98RON and an RS2 intercooler and I'm reasonably confident of less lag and quicker spool than RS2 - by nature of the smaller A/R and turbine wheel.
If it doesn't work out then I can always machine the housing bigger again to take the RS2 turbine wheel.
Paul
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