They (12 CM housing) are made to fit a stock sized Sy/Ty turbine wheel.
So if any of you guys want a 12 CM turbine housing for your stock turbo, it will bolt right on.
I had to machine the one I got to fit an "H" wheel.
They are pricey, see if Hahn will sell it for any less, because that's the one you would need & it does not hurt to ask.
I had to also open up the entry on the turbine housing to match the Stock Sy manifold, it was really small.
i need some numbers.like the exhaust a/r . 48 , 63,80 etc. i think 63 would be best for stock converter. the compressor side 50 60 70 a/r. there is a lot of combos.to look at. the 20 g with the 10cm housing sounds good. but hard to find in canada. maybe a garret or precision?
Talk to the boys at Cambell auto. they are vendors on here.
What machine work did you have to do to fit the "H" wheel ? Do you know if the Hahn housing is thick enough for this machine work ?
So did you just have to machined out the Housing to fit the "H" ? Was it machined straight though so the bore is the same all the way ? What did you gain by using the "H' Wheel ?
I have done machineing myself to the center/cartridge section to fit the 60-1 wheel.
Now I am in the process of machineing the compressor wheel to fit onto the cartridge.
One CO ,was machining a 10 bladed Garrett turbine wheel to bolt right into the TD06H turbine housing.
I was thinking to get the modded 10 bladed Garrett wheel, but have not done it as of yet.
Bringing up old post for a few question.
If I may ask some questions about your 60-1 wheel install.
1. What machineing did you do to the center/cartridge ?
The reason I ask is this, I have a center car/cartridge I cannot use for a stock turbo anymore and if I can use this section to machine for a 60-1 wheel, then I don't have to use any of my other turbo's.
2. Which company was machining a 10 bladed Garrett wheel ?
3. Piece of three inch 3x 3 billet stock.
When you did this.. Did you machine off the the old turbine inlet then do the welding and machine work on the housing ? Thank You for the help. If you don't want to reply here, you can send me a PM.
I was talking with Hahn earier today and they told me that they no longer stock the 12CM housing because the demand for them wasn't there :tdown:. They are looking into getting 1 for me :tup:.
I had to machine the back side of the 60-1 compressor wheel flat.
I believe they make compressor wheels flat & convex on the back side.
My 20G compressors back side was flat so I machined the 60-1 wheel I bought flat.
I had to machine the center hole bigger of the compressor wheel also.
That is it for the center cartridge.
With the billet 3X3 aluminum, I machined the compressor covers OD of the inlet the same diameter, just further down, then I machined the 3X3 piece aluminum .001-.0015 smaller hole than the compressor covers OD, for an (interference fit).
My friend told me he needed for me to grind open the area around the compressors inlet so he can reach in w/his tig welder, so I opened up the area w/a carbide cutter.
Then I heated up the 3X3 aluminum piece to about 200+ degrees F & quickly slid the 3X3 piece over the compressor cover.
I then sent the compressor cover to a Turbo specialist Deadbolt (not in business anymore?) to machine the compressor cover to fit the 60-1 wheel.
When they machined for the 60-1 wheel, they machined though the original aluminum section of the compressors inlet.
Hope that makes sense & helps you out..:tup: