Twin Turbo
13 January 2009, 01:57 PM
#1
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Twin Turbo
Anyone care to explain how this works?
Was thinking about this in bed last night lol
Does one turbo kick in at low rpm an just as its drops off the other spools up.
Also are you able to run 2 dump valves an would they sound at the same time or different?
I am not planning this just wanted to know how it works.
Thanks
Connor
Was thinking about this in bed last night lol
Does one turbo kick in at low rpm an just as its drops off the other spools up.
Also are you able to run 2 dump valves an would they sound at the same time or different?
I am not planning this just wanted to know how it works.
Thanks
Connor
13 January 2009, 02:27 PM
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How long is a piece of string? LOL
If you limit it to series or compound charging of 4 cylinder engines there should typically be two goals...
Minimise spool threshold and lag by having a small primary or HP turbo.
Make more power more efficiently by having a large turbo better sized to high RPM flow requirements of the engine. In theory this means that the engine will make more power at higher revs because it should be running a higher boost more efficiently.
If you want to talk about straight sixes, V8s etc... Do a couple of serches on Google for Supras and <Partridge mode> Lexii. </Partridge mode>
J.
If you limit it to series or compound charging of 4 cylinder engines there should typically be two goals...
Minimise spool threshold and lag by having a small primary or HP turbo.
Make more power more efficiently by having a large turbo better sized to high RPM flow requirements of the engine. In theory this means that the engine will make more power at higher revs because it should be running a higher boost more efficiently.
If you want to talk about straight sixes, V8s etc... Do a couple of serches on Google for Supras and <Partridge mode> Lexii. </Partridge mode>
J.
13 January 2009, 02:52 PM
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Different ways of running twins, series parallel, sequential and combinations of the two.
The Legacy TT used one blower and then opened an exhaust valve to spool the second blower, once that was boosting it opened an inlet valve to allow the second turbo to feed the engine.
Autospeed article1
Autospeed article2
Simon
The Legacy TT used one blower and then opened an exhaust valve to spool the second blower, once that was boosting it opened an inlet valve to allow the second turbo to feed the engine.
Autospeed article1
Autospeed article2
Simon
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