What Sort Of Turbo Is This

[220bhp]

my son has this turbo and dos'nt know what it is can anyone tell us, its a garret A/R48M27

[terrybullwon]

have a look here http://www.turbobygarrett.com/turbob...ochargers.html

[LHD_Kid]

It is more than likely a T3 turbo,
A/R is 0.48 which is (taken from James's link...)

A/R describes a geometric characteristic of all compressor and turbine housings. It is defined as the inlet cross-sectional area divided by the radius from the turbo centerline to the centroid of that area.