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Nov 12, 2013 15:22:33 GMT
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Last Edit: Nov 12, 2013 16:03:07 GMT by claymore
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Nov 12, 2013 18:42:41 GMT
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Sorry dude, you're 3 short   |
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Last Edit: Nov 12, 2013 18:43:00 GMT by docjock
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Nov 12, 2013 18:49:30 GMT
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That hurts my brain
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adam73bgt
Club Retro Rides Member
Posts: 4,867
Club RR Member Number: 58
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Multiple turbosadam73bgt
@adam73bgt
Club Retro Rides Member 58
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Nov 12, 2013 19:05:41 GMT
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I had a bit of a think about whether this would be doable while sat in a lecture last year at uni, I'm glad someone has actually gone out and done it  Would lag be almost totally eliminated in addition to it looking cool as hell? |
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The problem is that a single exhaust pulse every now and then doesn't spool a turbo very well. That 8 turbo V8 was done because they could for a show car and it reportedly didn't work well at all.
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But would 5 small turbos designed for something like a 1ltr diesel work?
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ToolsnTrack
Posted a lot
Homebrew Raconteur
Posts: 4,117
Club RR Member Number: 134
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Multiple turbosToolsnTrack
@overdrive
Club Retro Rides Member 134
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But would 5 small turbos designed for something like a 1ltr diesel work? Its still affected by pulsing. Despite the size of the turbo, if you have only one cylinder feeding it your are missing 3 other cycles which is in effect "dead time", as they are feeding the other turbos. As such, this basically causes the turbo to briefly spool 25% time, then have to wait 75% for the next push in a 4 cylinder application. It would be even worse in a 5 pot (20/80) (Before flames, that was a massive oversimplification, but presented for understanding... ) |
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RobinJI
Posted a lot
"Driven by the irony that only being shackled to the road could ever I be free"
Posts: 2,995
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At least one issue you'll have is the increased skin-friction drag on the air-flow into/out of the turbo's due to the extra surface area of having 4 small pipes instead of 1 large one. I'd imagine the same sort of idea could cause a lot of issues, 4 small turbines are bound to weigh more than 1 turbine capable of flowing 4 times the volume, but they're only being driven by 1/4 of the energy, and so on. It's a cool idea, and doing it because you can is a fair reason, but I wouldn't expect better results than a normal single turbo set-up.
I'd love to be proven wrong though, it does look cool!
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Good points, I might just stick to another compound charged setup like the front engine then.
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What about adding 5 superchargers too?
Would a setup like the own developments one not work? Surely that spools all 4 turbos all the time?
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ToolsnTrack
Posted a lot
Homebrew Raconteur
Posts: 4,117
Club RR Member Number: 134
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Multiple turbosToolsnTrack
@overdrive
Club Retro Rides Member 134
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What about adding 5 superchargers too?  Couldn't resist... |
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Would lag be almost totally eliminated in addition to it looking cool as hell? 
