RazMan
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| posted on 25/2/07 at 09:30 AM |
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Parallel thinking and turbos
Bit of a cheesy video but what do you think of this turbo setup? It might overcome some common problems like space & under bonnet temperatures.
Link
[Edited on 25-2-07 by RazMan]
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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graememk
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| posted on 25/2/07 at 09:55 AM |
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they make it look so easy lol
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bilbo
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| posted on 25/2/07 at 09:58 AM |
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I think this sort of system has been looked at before on here. The main problem I can see is the large distance from the compressor to the inlet,
which means a lot of air volume to compress, which means laaaaag.
Do like the video though. Remember 'Tool Time'? 
[Edited on 25/2/07 by bilbo]
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nib1980
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| posted on 25/2/07 at 10:02 AM |
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sweeettt
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daviep
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| posted on 25/2/07 at 10:03 AM |
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Not the best setup for maximum power. Too much heat will be lost from the exhaust gasses between the engine and the turbo.
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MikeR
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| posted on 25/2/07 at 10:20 AM |
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daft question - the last bit they show they says "what turbo lag"
How come?
Is it a case of small turbo with large displacement engine meaning it spins up quickly all that way down the exhaust?
(ie i'm confused and can't understand why they don't have massive lag)
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jlparsons
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| posted on 25/2/07 at 10:35 AM |
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Turbo lag - what turbo lag?
Notice the lack of any argument, comparrison or qualifier in such a small statement for such a big issue. Don't infomercials rock? 
Any resemblance to real persons, living or dead is purely coincidental. Some assembly required. Batteries not included. Contents may settle during
shipment. Use only as directed. No other warranty expressed or implied. Do not use while operating a motor vehicle or heavy equipment. Subject to
approval, terms and conditions apply. Apply only to affected area. For recreational use only. All models over 18 years of age. No user-serviceable
parts inside. Subject to change. As seen on TV. One size fits all. May contain nuts. Slippery when wet. For office use only. Edited for television.
Keep cool; process promptly.
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RazMan
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| posted on 25/2/07 at 10:46 AM |
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quote:
Originally posted by daviep
Not the best setup for maximum power. Too much heat will be lost from the exhaust gasses between the engine and the turbo.
Surely it is actually better that way - it's not the heat which makes boost - purely movement of the gas which powers the turbine..... or am I
missing something?
Regarding the lag argument, I can't see how they can claim 'what lag?' with pipes that long. They do mention a loss of 1 psi but
that doesn't make much sense either.
[Edited on 25-2-07 by RazMan]
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Moorron
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| posted on 25/2/07 at 11:35 AM |
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didnt watch it all but am i right in saying they mounted the turbos at the back of the car?  . are they mad.
its been said already but lag and heat are the isues.
But it is from the usa. Think of all the car adds oer there for there sport cars, which never mention anything other than what bhp and straight line
speed they can do.
dumb americans, dumb idea.
Sorry about my spelling, im an engineer and only work in numbers.
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scottc
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| posted on 25/2/07 at 12:44 PM |
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At least if the labour is charged by the hour, its only gonna cost 1/2 hour for installation.
I wish every job I did on a car went that smoothly.
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Peteff
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| posted on 25/2/07 at 01:32 PM |
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What turbo lag?
Like it wouldn't have spun the wheels when it "only" had 343bhp Remember Tool Time? I still watch it on ABC1
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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MikeR
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| posted on 25/2/07 at 02:17 PM |
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From my limited understanding, the heat issue is ...
hot gass takes more volume, therefore as it cools it will slow down.
This is countered by the compressor side of the turbo heating up the inlet gas, this will also get cooled as it runs to the engine - which they
mention.
I wonder if having such a long inlet run does cause lag but puts the lump of air in much more gracefully. I'm thinking its more of a
"whoohoo" as the turbo spins up instead of "oh my god whoohooo". Then again they took a 350hp engine to (can't quite
remember) 500hp?
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CraigJ
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| posted on 25/2/07 at 03:27 PM |
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with pipes that long you WILL get lag no matter what.
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MikeR
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| posted on 26/2/07 at 06:40 PM |
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The point i'm trying to make is - you will have lag, but in a 'normal' installation the lag is generally accepted to be a big
"Whump" as the extra air hits the engine.
With such a long pipe I'm wondering if the "whump" is more gradual so you get lag, but it manifests itself as a gradual (in relitive
terms) increase in power so is less noticeable.
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Simon
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| posted on 26/2/07 at 08:39 PM |
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And, of course, with that much compressed air sitting in a pipe as the throttle is closed
Oh yeah, it's got a dump valve.
Wonder if they do one for the Mustang engine (in the ZT)
ATB
Simon
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