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[a853rox]

Ok so I have some prelim data/spec for the turbines and manifolds. Each turbine and manifold have been marked as 1/2/3 and will remain as such for future reference. So when there are any comments or questions about 'turbine 2' we'll know where we started from.

All three turbine housings are 50-trim .63 A/R Garrett turbine housings. These appear to be new. All three manifolds are AGP's newer cast manifold. These appear to be new as well.

Turbine 1
Exducer bore: 2.276"
Volute entry: 2.255"w x 1.770"h
CC content: 534.4cc

Turbine 2
Exducer bore: 2.278"
Volute entry: 2.247"w x 1.786"h
CC content: 533.6cc

Turbine 3
Exducer bore: 2.276"
Volute entry: 2.249"w x 1.788"h
CC content: 533.8cc

Turbine averages:
Exducer bore: 2.2766" (variance .002")
Volute entry: 2.2505"w x 1.7813"h (variance .008"w, .004"h)
CC content: 533.933cc (variance .8cc)


Manifold 1
Turbo flange: 2.354"w x 1.803"h
WG bore: 1.317"dia
Ports: 1-(2.025"w x 1.089"h) 2-(2.090"w x 1.114"h) 3-(2.082"w x 1.112"h) 4-(1.997"w x 1.106"h)
CC content: 661.0cc

Manifold 2
Turbo flange: 2.361"w x 1.816"h
WG bore: 1.319"dia
Ports: 1-(2.022"w x 1.092"h) 2-(2.075"w x 1.123"h) 3-(2.040"w x 1.122"h) 4-(2.017"w x 1.090"h)
CC content: 651.2cc

Manifold 3
Turbo flange: 2.360"w x 1.810"h
WG bore: 1.324"dia
Ports: 1-(2.009"w x 1.095"h) 2-(2.086"w x 1.120"h) 3-(2.058"w x 1.113"h) 4-(2.003"w x 1.111"h)
CC content: 659.6cc

Manifold averages
Turbo flange: 2.358"w x 1.809"h (variance .007"w .013"h)
WG bore: 1.300"dia (variance .006")
Ports: 2.054"w x 1.109"h (variance .093"w x .034"h)
CC content: 657.26c (variance 9.8cc)

-CC content of turbine housings is NOT of the volute only and DOES include the volumes for the exducer bore and seat for the CHRA.
-Tolerances seem decent, but I can tell the original manifold that AGP used for the molding process had runners #1 & 2 shaped a tad smaller than runners 3 & 4 as all three manifolds showed this in common. This of minor concern as these ports are larger than both the exhaust ports on the head, and larger than the gasket as well. This may have been done to help with anti-reversion but I am only speculating.

I will get post porting cc's of turbines and manifolds after the portwork is completed.