Turbocharger Guide

COMPRESSOR SIDE	DOWNPIPE SIDE

Features of Note: This is the compressor side of the 1986-87 stock turbo (right) and the TE61 turbo (left) Notice the the wheel for the TE61 is bigger with equal length compressor blades, unlike the staggered blades on the stocker Stocker has provision for an inlet bell TE61 has the inlet bell integral to the casting Notice how the TE61 scroll (left) is taller and "fatter" than the Garrett housing (right), as is typical for the TE series Notice the TE61 takes pressurized air from a different place than the stocker	Features of Note: This is the downpipe side of the stocker (right) and the TE61 (left) The TE61 has wastegate hole taken out bigger than stock for better boost control The wheel design for the TE61 is MUCH larger in diameter. Notice the thin sealing area in the upper left part of the downpipe mating area. Notice that the actual turbine housings (irrespective of the machining) are basically identical externally
COMPRESSOR SIDE

Features of Note: In this photo we can see the slightly different design of the turbine housing for the TE61 (left) We can also see how much bigger the compressor housing is, compared to the stocker Stock center sections for both turbos You can clearly see the integral bell on the TE61 (left) and the bolt on bell on the stocker (right)

COMPRESSOR SIDE

Features of Note:

This is the compressor side of the 1986-87 stock turbo (right) and the TE61 turbo (left)
Notice the the wheel for the TE61 is bigger with equal length compressor blades, unlike the staggered blades on the stocker
Stocker has provision for an inlet bell
TE61 has the inlet bell integral to the casting
Notice how the TE61 scroll (left) is taller and "fatter" than the Garrett housing (right), as is typical for the TE series
Notice the TE61 takes pressurized air from a different place than the stocker

Features of Note:

This is the downpipe side of the stocker (right) and the TE61 (left)
The TE61 has wastegate hole taken out bigger than stock for better boost control
The wheel design for the TE61 is MUCH larger in diameter. Notice the thin sealing area in the upper left part of the downpipe mating area.
Notice that the actual turbine housings (irrespective of the machining) are basically identical externally

Features of Note:

In this photo we can see the slightly different design of the turbine housing for the TE61 (left)
We can also see how much bigger the compressor housing is, compared to the stocker
Stock center sections for both turbos
You can clearly see the integral bell on the TE61 (left) and the bolt on bell on the stocker (right)