Maybe from the
dyno? racing? running lean?
But it got so hot
the metal crystallized, is what the ceramic coater told me.
So I decided to
redo the water lines, check oil lines, clean up the housing, new gaskets.
Turbo mani has been in use for a few years now, it's been pretty much issue free
See here:
So what do I need?
Oil Line Fittings:
Turbo oil threads = M10x1.5mm
Therefore M10x1.5 to -4AN plus 100cm / 4AN braided steel
hose (Teflon)
OR
M10*1.5mm Banjo bolt kit (4AN Flare) plus 100cm / 4AN
braided steel hose (Teflon)
FYI thread on the head for the turbo oil feed = M10x1.25
Water Line Fittings:
Turbo water threads =2 x M12 x 1.25mm
What I am thinking is:
2 x 20cm / 4AN / 3/8" braided line plus 3/8"
tapered barb
Stock thermostat housing is 10mm/3/8"
OR
M12x1.25 Banjo bolts with tapered barb fittings.
3/8" 9.5MM OD AN-6
Took it out in one hit, what a pain to do so.
Cleaning the studs
After an hour on the wire wheel, mani started looking good
Stock manifold studs:
M8x1.25
M10x1.25
@ 40mm
Ceramic coating @ CIC better be worth it.
So expensive for something that won't improve track times.
Mapping out the fittings I need
Studs on a 4G15 Colt Ralliart =
7 x M8x1.25 @ 40mm
2 x M10x1.25 @ 40mm
10mm - 10mm - 20mm
After much hand cleaning
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