Whilst i know all about the workings of Turbos & Superchargers,what does Bi-turbo mean[?][:I]
Like the new Noble M14 "Bi-turbo V6"
Can anyone explain please.
Thanks [:I][:)]
Turbo V`s Bi-turbo
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I thought they used more turbos to reduce turbo lag?
i.e.
one large turbo - takes a long time to spin up - lots of turbo lag.
several small turbos - spin up very quickly - very little turbo lag.
In answer to the original question. Bi-turbo means two turbo chargers, usually one per bank of cylinders on a V engine.
i.e.
one large turbo - takes a long time to spin up - lots of turbo lag.
several small turbos - spin up very quickly - very little turbo lag.
In answer to the original question. Bi-turbo means two turbo chargers, usually one per bank of cylinders on a V engine.
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Bi-turbo and twin-turbo largely mean the same thing.
"biturbo
The “bi” comes from Latin and means “two”. The “biturbo” designation in connection with Audi V engines signifies that two turbocharger have been installed, one for each bank of cylinders. The driver benefits from increased torque at the low end, more power at the upper end and improved engine response. Audi uses these advantages in the Audi RS 4, for example as well as in its competition cars (the Audi R8). "
See http://www.audi.com/audi/com/en1/glossary/biturbo.html
"biturbo
The “bi” comes from Latin and means “two”. The “biturbo” designation in connection with Audi V engines signifies that two turbocharger have been installed, one for each bank of cylinders. The driver benefits from increased torque at the low end, more power at the upper end and improved engine response. Audi uses these advantages in the Audi RS 4, for example as well as in its competition cars (the Audi R8). "
See http://www.audi.com/audi/com/en1/glossary/biturbo.html
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I remember seeing a large Suzuki drag bike using a Bi-turbo setup, in that case it had one large and one small turbo the idea was that tha smaller on spun up quickly to provide boost at lower rpms and to avoid turbo lag while the larger one got going. I imagine that on a Vee configured engine there would be one turbo per bank of cylinders to make manifolding simpler.
Stewart
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Looks like i stand corrected lighteninguk,sorry[:I][:)].So Bi-turbo is 2 turbo`s on V engines,but maybe a smaller one on one side,& a larger one on the other bank?
I remember the Escort Cosworth being fitted with the smaller T25 turbo to reduce lag.
Topgear/Clarkson rate the Nobel.If only i could have one![:D][}:)]
I remember the Escort Cosworth being fitted with the smaller T25 turbo to reduce lag.
Topgear/Clarkson rate the Nobel.If only i could have one![:D][}:)]
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When you've got two different sized turbos and a V engine you have to connect both turbos to both banks of a V engine to benefit from the big turbos boost. The BMW 535 is a straight six, so there is no bank problem. There are lots of variants of twin turbo set ups. Some are in series (sequential), others in parallel. I think the 3.0 Saab V6 turbo diesel only uses the turbo on one of the banks of cylinders.
My Dad had a Lancia Thema which had a system to overcome turbo lag. What it did was to initially blow some of the boost into the turbo's turbine i.e. bypassing the engine to get the turbo up to speed, the manual called this an overboost device. The Thema was the sort of turbo car where there was no power initially then it all came in all of a sudden and you had to grip the steering wheel very tightly and take your foot off the accelarator quick to avoid running into the car in front.
My Dad had a Lancia Thema which had a system to overcome turbo lag. What it did was to initially blow some of the boost into the turbo's turbine i.e. bypassing the engine to get the turbo up to speed, the manual called this an overboost device. The Thema was the sort of turbo car where there was no power initially then it all came in all of a sudden and you had to grip the steering wheel very tightly and take your foot off the accelarator quick to avoid running into the car in front.