The place to "speak geek"
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BiggestNizzy
- Posts: 8932
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- Location: Kilmarnock
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by BiggestNizzy » Wed Jul 02, 2008 11:55 am
Being on holiday is a poison chalise, I start thinking about non work related stuff and they usually ends up
- a disater
- expensive.
Here's my Idea.
Facts
- Throttle bodies are good
- I am a pikey
- I have access to a machine shop
If I was to take a standard aluminium plenum chamber and bore a hole on the other side and fit a second plastic* throttle body and feed it from the other side of the car will it work on a standard ECU ?
possible problems
- ECU
- Drop in pressure (baffle or split the plenum chamber in the middle??)
I don' see many problems in connecting it all up
*
plastic throttle bodies, I would use them for there smaller diamter, as fitting the larger throttle bodies slows the speed of the air down but increases volume, fitting 2 would increase volume and keep the speed higher.
discuss ?

Sent from my ZX SPECTRUM +2A
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mac
- Posts: 6880
- Joined: Mon Sep 19, 2005 4:36 pm
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by mac » Wed Jul 02, 2008 12:02 pm
Fairly sure this has been discussed in the past.
IIRC someone (perhaps Robin, maybe Fd) pointed out a huge flaw - something to do with laws of physics that I didn't understand but took it as gosple due to the person saying it.
Glad to be off assistance
Mac
S2 Elise (cobalt blue with stripes) - toy spec
Caterham 7 - hillclimb spec
Yamaha Thundercat - 2 wheeled toy spec
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VXJON
- An Equal Opportunities Lover
- Posts: 2586
- Joined: Sun Feb 19, 2006 12:33 pm
- Location: GLASGOW
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by VXJON » Wed Jul 02, 2008 12:41 pm
Step away from the machine bench and put the saw down! 
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Shug
- Posts: 13835
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- Location: Deepest, Darkest Ayrshire
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by Shug » Wed Jul 02, 2008 12:51 pm
No point to it at all. At your state of tune it's not the TB that's the restriction, it's the ports and valves...
Fine, if you wanna prove a point, but it'll be a waste of time

2010 Honda VFR1200F
1990 Honda VFR400 NC30
2000 Honda VTR1000 SP1
2000 Kawasaki ZX-7R
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Rich H
- Posts: 9314
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by Rich H » Wed Jul 02, 2008 1:01 pm
Don't listen to the voices of reason above (And no doubt below)
start with a VVC manifold then you have the lower half already sorted and you can work on splitting the top half. Either start with 2 VVC top halfs and cut and shut them back to back (2 IACVs then)or just fab up a new one. Its just a box with some holes in after all...
Rich
1994 Lotus Esprit S4 - Work in progress
1980 Porsche 924 Turbo - Funky Interior Spec
2004 Smart Roadster Coupe - Hers
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ABZ-Elise
- Posts: 556
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- Location: Inverurie
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by ABZ-Elise » Wed Jul 02, 2008 5:10 pm
Rich H wrote:Don't listen to the voices of reason above (And no doubt below)
start with a VVC manifold then you have the lower half already sorted and you can work on splitting the top half. Either start with 2 VVC top halfs and cut and shut them back to back (2 IACVs then)or just fab up a new one. Its just a box with some holes in after all...
Rich
I'm normally one for not listening to the voices of reason but in this case I would. Would be a pain in the ar$e if you did all that and it never worked.
1999 S1 Elise - For Sale
2003 E46 M3 - Sold
2004 Defender 90 Truck Cab - Sold
1989 Defender 110 (Project) - Sold