@diby 2000
This is what Luke told me in an email about mine.
"After a few different combinations the wheel I selected was a 7+7 compressor wheel with an inducer of 48.0 mm and a Exducer of 67.0 mm. The reason I retained the 7+7 is that they will out spool an 11+0 compressor wheel (this allows me to use a larger compressor wheel and get similar if not the same performance as a smaller wheel) and the 67mm Exducer with the anti-surge slots give upper rpm flow to keep the turbo operating in the efficiency rating from 72 - 65% so your intake temps stay lower and your inter cooler will be more efficient and not get excessively hot. All which leads to a denser air intake charge which means you can burn more fuel and make more torque."
In our recent conversations he decided to bump my inducer from 48mm to 50mm on the replacement turbo.
This is what Luke told me in an email about mine.
"After a few different combinations the wheel I selected was a 7+7 compressor wheel with an inducer of 48.0 mm and a Exducer of 67.0 mm. The reason I retained the 7+7 is that they will out spool an 11+0 compressor wheel (this allows me to use a larger compressor wheel and get similar if not the same performance as a smaller wheel) and the 67mm Exducer with the anti-surge slots give upper rpm flow to keep the turbo operating in the efficiency rating from 72 - 65% so your intake temps stay lower and your inter cooler will be more efficient and not get excessively hot. All which leads to a denser air intake charge which means you can burn more fuel and make more torque."
In our recent conversations he decided to bump my inducer from 48mm to 50mm on the replacement turbo.