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The mkiv Supra Owners Club

Turbo... it's the way to go


caseys

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I haven't read it, however...

 

Surely the ratio of CO2 is directly related to the amount of fuel being used? What does a turbo have to do with that ratio?

 

Because when the turbo isn't being used (IE low RPMs, town driving), it doesn't require as much fuel.

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Because when the turbo isn't being used (IE low RPMs, town driving), it doesn't require as much fuel.

 

Exactly, so when the turbo ISN'T being used its more fuel efficient and better for the environment. So why have a tubby? Is it for sports cars only or something?

 

Are they saying that for a 200bhp car its better to have a 120-150hp engine and tubbying it so that 200 is on tap but for about town driving you won't be using it? So an N/A engine capable of 200hp uses more fuel than a turbo engine capable of 200hp when at lower revs?

 

Surely thats what variable valve systems do?

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Exactly, so when the turbo ISN'T being used its more fuel efficient and better for the environment. So why have a tubby? Is it for sports cars only or something?

 

Are they saying that for a 200bhp car its better to have a 120-150hp engine and tubbying it so that 200 is on tap but for about town driving you won't be using it? So an N/A engine capable of 200hp uses more fuel than a turbo engine capable of 200hp when at lower revs?

 

Surely thats what variable valve systems do?

 

:thumbs:

 

Variable valve timing systems do this, just to a lesser extent. Modern engines combine variable valve timing with turbo charging to maximise efficiency.

 

Fitting turbos to small lumps isn't only for sports cars, it's handy have a bit of poke smetimes in any car :)

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Hopefully the insurance will be isanely high for young drivers as i think it will drive people mad with the sound of dump valves everywhere.

But the plus side should mean the cost of turbo's come down and reliabilty increased through development

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:thumbs:

 

Variable valve timing systems do this, just to a lesser extent. Modern engines combine variable valve timing with turbo charging to maximise efficiency.

 

Fitting turbos to small lumps isn't only for sports cars, it's handy have a bit of poke smetimes in any car :)

 

Coolio, sounds like a plan.

 

Doesn't sound like it will make a huge difference but i guess every little counts.

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Well, I hope that multi turbocharger setup will also be researched. Make quad turbo affordable for all! ;)

 

Also, if I remembered correctly, there's a VW engine with both a supercharger and a turbocharger. So, I guess that must be ultra efficient then? 2 supers and 2 turbos...mmmmmmmmm.....

 

I think I creamed ma pants :(

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Also, if I remembered correctly, there's a VW engine with both a supercharger and a turbocharger. So, I guess that must be ultra efficient then? 2 supers and 2 turbos...mmmmmmmmm.....

 

There are a few twin-charged engines. Someone (Dimitri) was planning on a 2JZ twin-charger setup but I'm not sure how far along his came. Twin-charging is good for smaller engines, but the jury is out on whether larger engines respond quite as well because of the power sapped getting the supercharger spinning. I'd love to see it done though. Perhaps someone in the UK will do it... ;)

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Golf TSI, a 1.4 twincharged.

 

Nothing beated the old Lancia with a tri-flux engine (or what's what they called it).

 

I am hoping that yes this'll drive turbo development even more, neccessity being the mother of invention/innovation. Admittedly motorsport and big industry has/is driving turbo innovation most at the moment.

 

Would be good to see more triple-scroll turbos though... and understand how the heck they work.

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