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displaying posts 1 to 7 of 7
| Author | Subject: Any mileage in paneling the underside |
 ben306
Seasoned Pro  Location: North West Registered: 17 Jan 2006 Posts: 2,930 Status: Offline |
Post #1
Was wondering if its worth making a panel up to sit under the rear and stop the rear bumper catching air. Almost like a rear diffuser or is it something thats not worth bothering with.Anyone done anything similar? ________________________________________ My 306 Rallye Project ThreadFew recent Youtube track videos, more on my channel Pair of Rallye's doing a few laps of Anglesey Lap of Anglesey Coastal 3 sisters circuit Few laps at Blyton |
 Posted 15th Aug 2011 at 14:22
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cwspellowe
Seasoned Pro  Location: Calderbank Registered: 19 Jul 2009 Posts: 6,496 Status: Offline |
Post #2
there's mixed opinions, some say it helps, others say it creates an air pocket and not much turbulence anyway.Anyone got a wind tunnel?  ________________________________________ Bye bye Sundance Kid |
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Posted 15th Aug 2011 at 14:50
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,817 Status: Offline |
Post #3
easier to just cut out the middle of the bumper.you need to concentrate on making it handle before worrying about aero stuff... ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 15th Aug 2011 at 14:51
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ben306
Seasoned Pro Location: North West Registered: 17 Jan 2006 Posts: 2,930 Status: Offline |
Post #4
Ive been looking for a new suspension set up, so theres a start haha. On the look out for coilovers!________________________________________ My 306 Rallye Project ThreadFew recent Youtube track videos, more on my channel Pair of Rallye's doing a few laps of Anglesey Lap of Anglesey Coastal 3 sisters circuit Few laps at Blyton |
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Posted 15th Aug 2011 at 15:04
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monkeyman
Seasoned Pro  Location: Sunny St Albans Registered: 01 Oct 2008 Posts: 1,955 Status: Offline |
Post #5
Here's some stuff about undertrays etchttp://www.autospeed.com/cms/A_2455/article.html http://www.autospeed.com/cms/A_2160/article.html http://www.autospeed.com/cms/A_2456/article.html not exactly scientific, but they do try stuff out ________________________________________ Spanner Monkeys Monkey SpannerForum Search Clicky |
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Posted 15th Aug 2011 at 15:43
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mik
Seasoned Pro  Location: Kent Registered: 17 Feb 2011 Posts: 2,100 Status: Offline |
Post #6
Quite interesting - I am definitely going to install a standard factory undertray at the front to stop muck getting into the engine bay and maybe smooth the underbody airflow a bit - the Rallye needs all the help it can get to improve fuel economy. The 10% improvement achieved by the Prius in the article would be very welcome given petrol prices! Lots of new-ish cars have those projections in front of the front wheels (front wheels are big source of frontal drag according to that article) - they could be quite easy to make up. ________________________________________ Cherry Rallye SOLD |
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Posted 6th Sep 2011 at 00:25
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smegal
Seasoned Pro  Location: Leeds Registered: 26 Dec 2005 Posts: 5,940 Status: Offline |
Post #7
I saw a scale model of a 306 in a wind tunnel. The dead zone at the back of the window is the main part to worry about. ________________________________________ Ex SC-6Now in a Megane R26 |
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Posted 6th Sep 2011 at 01:30
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