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Variable Vane Turbos

General Tech Talk

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Variable Vane Turbos

Post by ozy1 »

Can anyone tell me, or provide links, on how Variable Vane turbos work,

please peoples,
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Post by Bush65 »

Have a look at this page http://www.technologie-entwicklung.de/G ... turbo.html

Has information about a Garret variable nozzle turbo. Near the bottom is an animated giff of the vanes in different positions.

Where many other turbos have a wastegate to control turbine speed and reduce back pressure, the variable nozzle turbo has adjustable vanes to increase the turbine speed at lower engine revs and lower the turbine speed and reduce back pressure at higher engine revs
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John
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Post by ozy1 »

thankyou, i will have a look at that now.
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Post by Red Rover »

Yes I'd like to know to as I have a couple of ZD30 variable vane that would be well suited to a RD28T. As it works of vacum, I'm sussing put making it work with pressure. Had some talks with SMC and still waiting to hear back. I'd be keen to see how you get on.
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Post by ozy1 »

all i wanted to know, is how they actially worked, as i was talking to a bloke the other day, complaining about his ZD30 patrol not driving properly and not hitting boost until 2800 rpm, not a nice figure for a diesel
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Post by BOGAN V8 »

ozy1 wrote: 2800 rpm, not a nice figure for a diesel


Yeah it is :D :D :D :D :D thats how i drive me 2.8 non turbo ozy1 ha ha ha
94 HJZ 80 GXL 4 Inch lift 35s. TJM Accessories Front to back
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Post by ozy1 »

BOGAN wrote:
ozy1 wrote: 2800 rpm, not a nice figure for a diesel


Yeah it is :D :D :D :D :D thats how i drive me 2.8 non turbo ozy1 ha ha ha


its cause you drive a shit hilux
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