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I'm now fairly sure that I have engine blow-by that forces air (or gasses) into the water jacket and the water out into the overflow bottle. So I'll have to take the engine apart. Here's Ed's reply to my question of whether I should do any porting when I'm anyway at it.
Anybody got a decent turbo center housing for sale that will fit in a 1986 NA 13B?
Finn
Hi Finn,
Good question. Here's some things to consider. The Secondary port (end
housings) has plenty of area (more than even a street ported turbo) with the
two openings (normal and auxillary). However, the center housing on the 6
port is woefully small - even after I had my first engine (6 port) ported
the opening for the primary ports in the center housing were not as large as
the normal turbo primary ports.
Soooo, if I were to do it, I would probably keep the 6 port end housings
since they have plenty of port area assuming you are removing (have removed)
the aux port cylinders and smoothed the air passage with JB weld or
whatever. However, I would probably swap the NA center housing for a turbo
center housing.
My 0.02 worth
Ed
Hi Ed!
Now that I anyway have to take the engine apart, would you recommend any
porting to my center and end housings (6-port NA) ?
Or would it be worthwhile to try to locate turbo (4 port) end housings?
Finn
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