Join Date: Jun 2009
Location: Toronto, Ontario, Canada
re: Turbo for a 910
You did a lot of work with the sizing tool!
Just some general comments....
If anything 6258 is on the small size i.e. will give instant response but constrain the motor at top end.
7163 makes a good fit, also.
Were you getting any boost at 2000RPM before? There may not be enough energy in the exhaust to spin the turbo. This depends on the camshaft and motor. I know little about 910...
I like EFR's. (I own 7670 on a race K20 motor). The packaging is great!!! No more separate BOV's and WG's... However, they were designed to be more of a high-pressure turbo... I would check Garrett, also. Also, more turbine housing choices, there....