Have you seen and what do you think of Volvo's turbo lag solution? They are using a small electric compressor to keep an air tank full, which then aids the exhaust in spooling when you would otherwise be getting lag.

 

I can see how it will work but Jesus that will be complicated and prone to leaks and what not!

 

 

I bet in twenty years time there wont be any about unlike the 20+ year old Nissan twin turbo.

I wonder about that, I see new releases and imagine if I'll be buying them when they are (the future equivalent) of 8 grand. Something like an Alfa Guilia or an M4, will they still be about? Will it be legal to own old cars? Will I have a cat in hells chance of working on them?

Not sure why this is big news again, they announced it years ago.

https://www.google.co.uk/amp/www.roadandtrack.com/new-cars/car-technology/news/amp27515/volvos-diesel-turbo-lag-solution-is-compressed-air/

 

Be interesting to see how it can affect performance cars rather than diesel trucks. I've found this done DIY and looks like it really could possibly be effective if you want to plumb it in.

That homebrew job is great, what would be the differences between firing that charge air into the intake compared to the exhaust?

 

Having thought about it, it would work, but, you would have difficulty MAFing it and titrating it in correctly. The wastegate in the exhaust side would just sort everything out for you doing it the Volvo way.

That homebrew job is great, what would be the differences between firing that charge air into the intake compared to the exhaust?

 

Having thought about it, it would work, but, you would have difficulty MAFing it and titrating it in correctly. The wastegate in the exhaust side would just sort everything out for you doing it the Volvo way.

 

Yeah, I read somewhere about it, compressed air in the intake is complicated due to metering air, and it can backpressure some intake air, so it's more efficient to shove it through the exhaust turbine and let the turbo do it's thing.

Here: "Because it requires less air volume to spin a turbine wheel faster while exhaust volume builds than to shove air into the intake stream... Also that air would need to be metered... which adds more complexity."

Edited December 11, 20178 yr by Alic

reminds me of this

https://www.facebook.com/STAVTECH/posts/882622721914251