Are water-cooled turbos necessary for diesel engines? If not, is an oil-cooler required? Some say no that EGT's to not get high enough to be a concern, others say yes water-cooling is 100% necessary to extend bearing life. What's your opinion? Downsides of water-cooled turbos (besides cost)?
On a side note, I have been looking at turbo kit for a while now, particularly at Safari, AXT, TurboGlide, Capa( Pretty sure kit is supplied by MTQ). Here is what I have found in case others are interested (all for the 1HZ):
Safari: Garrett T3/T4 hybrid, water-cooled, includes redesigned manifold. - $2900AU (~$2200 USD).
AXT: "Custom" Garrett, water-cooled, includes redesigned manifold. - $2900AU (~$2200 USD).
CAPA (MTQ): Mitsu TD05H, water-cooled, includes redesigned manifold. - $3040AU (~$2300US).
TurboGlide: Garrett GT28, water-cooling optional, uses stock manifold w/ adapter plate. - $2390AU (~$1800US) for standard fluid bearing non water-cooled GT28 + $600AU (~$450US) for Ball Bearing GT28 + $120AU (~$90US) for water-cooled = $3110AU (~$2340US)
I am kinda leaning toward the Turboglide right now. For about the same price as the other kits, i can get a BB GT28 (a much nicer turbo IMO). Only difference is that is uses the stock manifold.
Anyway, water cooled or not water-cooled? Ball bearing or floating bearing? why?
On a side note, I have been looking at turbo kit for a while now, particularly at Safari, AXT, TurboGlide, Capa( Pretty sure kit is supplied by MTQ). Here is what I have found in case others are interested (all for the 1HZ):
Safari: Garrett T3/T4 hybrid, water-cooled, includes redesigned manifold. - $2900AU (~$2200 USD).
AXT: "Custom" Garrett, water-cooled, includes redesigned manifold. - $2900AU (~$2200 USD).
CAPA (MTQ): Mitsu TD05H, water-cooled, includes redesigned manifold. - $3040AU (~$2300US).
TurboGlide: Garrett GT28, water-cooling optional, uses stock manifold w/ adapter plate. - $2390AU (~$1800US) for standard fluid bearing non water-cooled GT28 + $600AU (~$450US) for Ball Bearing GT28 + $120AU (~$90US) for water-cooled = $3110AU (~$2340US)
I am kinda leaning toward the Turboglide right now. For about the same price as the other kits, i can get a BB GT28 (a much nicer turbo IMO). Only difference is that is uses the stock manifold.
Anyway, water cooled or not water-cooled? Ball bearing or floating bearing? why?
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