jabbahutt
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 posted on 15/3/11 at 03:17 PM |
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area covered by rear diffuser
Afternoon all
Been looking at photos of owners cars with rear diffusers fitted and have a question. I realise that most are probably fitted more for cosmetic
reasons rather aerodynamic. What I can't glean is how far under the car they go. Some seem to only go as far under as the fuel tank straps so
there is still a large uncovered gap where the rear suspension and diff are, cosmetic I take it. Then there are those which seem to go much further
forward but I'm wondering how the rear suspension and diff is tackled, so as not to have the rear suspension arms collide with the diffuser. Is
it simply go much lower and sacrifice ground clearance?
Any info or photos underneath the car appreciated.
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welderman
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| posted on 15/3/11 at 03:41 PM |
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all though not a 7 car, my fury runs a full floor front to rear, covers everything. All done in 3 sections all are removeable.
Only problem wth the rear diffuser hitting the drive shafts is when the car is up on my ramps, appart from that its been fine.
[img]
 
full floor rear
[/img]
[Edited on 15/3/11 by welderman]
Thank's, Joe 
I don't stalk people
http://www.locostbuilders.co.uk/forum/23/viewthread.php?tid=172301
Back on with the Fisher Fury R1
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jabbahutt
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| posted on 15/3/11 at 03:49 PM |
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Many thanks for the photo that clears things up.
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coyoteboy
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| posted on 15/3/11 at 04:14 PM |
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More's the point, how do they MOT a car like that as they can't see 90% of the structure and linkages?
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daviep
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| posted on 15/3/11 at 04:22 PM |
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quote:
Originally posted by coyoteboy
More's the point, how do they MOT a car like that as they can't see 90% of the structure and linkages?
As best as they can 
“A truly great library contains something in it to offend everyone.”
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bi22le
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| posted on 15/3/11 at 06:49 PM |
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The underneath of your car welderman is very nice!
Hopefully a mod for next winter
Biz
Track days ARE the best thing since sliced bread, until I get a supercharger that is!
Please read my ring story:
http://www.locostbuilders.co.uk/forum/13/viewthread.php?tid=139152&page=1
Me doing a sub 56sec lap around Brands Indy. I need a geo set up! http://www.youtube.com/watch?v=EHksfvIGB3I
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Steve Hignett
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| posted on 15/3/11 at 07:53 PM |
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I do't really have a good photo of mine, but it was definitely fitted to a flat-floored car! (no point doing it other wise!)
.JPG)
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scutter
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| posted on 15/3/11 at 08:28 PM |
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Mine bridges the gap between the back of the floor and the fuel tank, it's mainly there to stop the rear panel ballooning.
You definately notice the difference above 70. (On an airfield of course)
The flap is to allow the diff to fall into it on full droop.
ATB Dan.
The less I worked, the more i liked it.
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welderman
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| posted on 15/3/11 at 08:42 PM |
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quote:
Originally posted by Steve Hignett
I do't really have a good photo of mine, but it was definitely fitted to a flat-floored car! (no point doing it other wise!)
2 fine looking fellas in that picture , looking at some hot tottie no doubt lol.
Thank's, Joe
I don't stalk people
http://www.locostbuilders.co.uk/forum/23/viewthread.php?tid=172301
Back on with the Fisher Fury R1
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McLannahan
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| posted on 15/3/11 at 08:45 PM |
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quote:
Originally posted by welderman
quote:
Originally posted by Steve Hignett
I do't really have a good photo of mine, but it was definitely fitted to a flat-floored car! (no point doing it other wise!)
2 fine looking fellas in that picture , looking at some hot tottie no doubt lol.
Who the hell are those ugly feckers??
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rick q
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| posted on 16/3/11 at 03:36 AM |
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No point in doing it if it isn't continuous ........
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jeffw
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| posted on 16/3/11 at 06:16 AM |
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While we are on the subject....has anyone done this to a live axle car? Just trying to think if it would work or not.
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Richard Quinn
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| posted on 16/3/11 at 07:34 AM |
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quote:
Originally posted by McLannahan
quote:
Originally posted by welderman
quote:
Originally posted by Steve Hignett
I do't really have a good photo of mine, but it was definitely fitted to a flat-floored car! (no point doing it other wise!)
2 fine looking fellas in that picture , looking at some hot tottie no doubt lol.
Who the hell are those ugly feckers??
I love the fact that Steve is there with his OMP suit etc whereas Joe looks as if he has just nipped out with his decorating overalls on but does have
a sign in front of him saying "Locost"
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scutter
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| posted on 16/3/11 at 07:54 AM |
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quote:
Originally posted by jeffw
While we are on the subject....has anyone done this to a live axle car? Just trying to think if it would work or not.
The undertray in my is fitted to a live axle car.
ATB Dan.
The less I worked, the more i liked it.
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welderman
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| posted on 16/3/11 at 01:47 PM |
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quote:
Originally posted by scutter
quote:
Originally posted by jeffw
While we are on the subject....has anyone done this to a live axle car? Just trying to think if it would work or not.
The undertray in my is fitted to a live axle car.
ATB Dan.
I was the pit monkey, fixing cars for the day, then ended up bieng pit board monkey and it all went wrong frm there on lol.
Thank's, Joe
I don't stalk people
http://www.locostbuilders.co.uk/forum/23/viewthread.php?tid=172301
Back on with the Fisher Fury R1
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first350
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| posted on 17/3/11 at 01:16 PM |
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I've been considering do a full diffuser as well - one thing I've noted is that I'll need some type of vent in the rear…my
understanding is that the tranny tunnel actually gets a good amount of flow, and since my boot top is covered, if I also cover the bottom w/ a
diffuser, the air will get trapped. My plan is to make some vent holes in the top of the boot.
*MNR's new diffuser has a middle exit for this very purpose.
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