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feralsprint
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PostPosted: Tue Nov 10, 2009 6:05 pm 
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Morris 1100 wrote:
feralsprint wrote:
...as for Amaroo the straight was uphill and had a right hand turn in it so no 140 there

Yes but it was Paul Gulson. That alone would have to be worth 15mph. :lol:
It would be possible to do 140 or more on the track. You just need a more aerodynamic car in front of you. :mrgreen: I got over 100 on the F4 in my 1275LS with a Toyota in front of me! The fun ended when he changed lanes and I lost 10mph. :cry:
The fastest bit at Amaroo in my Holden was around the back through Mazda corner. I am glad they moved the dirt bank in the late 80s. I tried to move the dirt bank in 81 with my first Morris. :lol: :lol: :lol:


With your high regard for Paul and rotaries you must of really liked the rotary powered mini he built :lol: :lol: :lol:

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drmini in aust
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PostPosted: Tue Nov 10, 2009 6:45 pm 
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There is some bloke in UK who was an aero engineer I think. He moved the lights back in the guards and put flush perspex fairings over them a la E type. I think he may also have modded the rear of the bonnet..
The Cd numbers were crunched in a wind tunnel and it did work, it gained speed but I dunno how much. there was a writeup in MINI or Miniworld a few years back.

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Morris 1100
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PostPosted: Tue Nov 10, 2009 7:24 pm 
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feralsprint wrote:
With your high regard for Paul and rotaries you must of really liked the rotary powered mini he built :lol: :lol: :lol:

Don't you remember that epic thread about 4 years ago about that very subject. :lol: :lol: :lol:
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drmini in aust
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PostPosted: Tue Nov 10, 2009 7:30 pm 
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Morris 1100 wrote:
feralsprint wrote:
With your high regard for Paul and rotaries you must of really liked the rotary powered mini he built :lol: :lol: :lol:

Don't you remember that epic thread about 4 years ago about that very subject. :lol: :lol: :lol:

Gaarn Morris, drag it back in here...
"You can do it..." :lol: :P

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Morris 1100
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PostPosted: Tue Nov 10, 2009 7:31 pm 
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drmini in aust wrote:
Morris 1100 wrote:
feralsprint wrote:
With your high regard for Paul and rotaries you must of really liked the rotary powered mini he built :lol: :lol: :lol:

Don't you remember that epic thread about 4 years ago about that very subject. :lol: :lol: :lol:

Gaarn Morris, drag it back in here...
"You can do it..." :lol: :P
Best we let sleeping dogs lie. :lol:
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GT mowog
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PostPosted: Tue Nov 10, 2009 7:54 pm 
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Morris 1100 wrote:
drmini in aust wrote:
Morris 1100 wrote:
feralsprint wrote:
With your high regard for Paul and rotaries you must of really liked the rotary powered mini he built :lol: :lol: :lol:

Don't you remember that epic thread about 4 years ago about that very subject. :lol: :lol: :lol:

Gaarn Morris, drag it back in here...
"You can do it..." :lol: :P
Best we let sleeping dogs lie. :lol:


Am I detecting some skeletons in the closet??? :roll:
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Asphalt
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PostPosted: Tue Nov 10, 2009 8:12 pm 
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Kennomini wrote:
I would like to know what can be done/added to a std shell to increase the aero and down forces. Like a body kit that actually increases performance, a rear spoiler or "whale tail" to increase down force or reduce drag, is it worth while adding alloy/plastic plates under the sub frames to smooth out the underside to reduce drag, is it worth while removing the badges, gutters and seams?


Like the 'Ridgeway Sports Conversion'? :lol:

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GT mowog
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PostPosted: Tue Nov 10, 2009 8:15 pm 
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Asphalt wrote:
Kennomini wrote:
I would like to know what can be done/added to a std shell to increase the aero and down forces. Like a body kit that actually increases performance, a rear spoiler or "whale tail" to increase down force or reduce drag, is it worth while adding alloy/plastic plates under the sub frames to smooth out the underside to reduce drag, is it worth while removing the badges, gutters and seams?


Like the 'Ridgeway Sports Conversion'? :lol:

http://www.minimarcos.org.uk/altpics/ridgway/index.html


That is butt ugly
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drmini in aust
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PostPosted: Tue Nov 10, 2009 8:36 pm 
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GT mowog wrote:
Asphalt wrote:
Kennomini wrote:
I would like to know what can be done/added to a std shell to increase the aero and down forces. Like a body kit that actually increases performance, a rear spoiler or "whale tail" to increase down force or reduce drag, is it worth while adding alloy/plastic plates under the sub frames to smooth out the underside to reduce drag, is it worth while removing the badges, gutters and seams?


Like the 'Ridgeway Sports Conversion'? :lol:

http://www.minimarcos.org.uk/altpics/ridgway/index.html


That is butt ugly

Hell yeah, looks like a Daihatsu Sirion, but fuglier! :P

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1071
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PostPosted: Tue Nov 10, 2009 8:55 pm 
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If you want to know how fast a Mini can go ask Don Racine of Mini Mania.

He set some sort of land speed record in one a few years ago at Bonneville.

Don't know what class /specs etc.

Cheers, Ian
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sports850
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PostPosted: Tue Nov 10, 2009 9:02 pm 
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That one had the same type of Supercharger kit that Link sells fitted to it , was a very tidy car but I can't remember what it did in the end .

As well as the Ridgeway version there was another one that looked smoother by Sebring , it had fairings for the mini lights (very E typeish actually) as well , looked much better than the ridgeway one :wink:

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cush
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PostPosted: Tue Nov 10, 2009 9:36 pm 
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Kennomini wrote:
is it worth while adding alloy/plastic plates under the sub frames to smooth out the underside to reduce drag,


That's ground effects... and it's more to do with increasing downforce than lowering drag. Although, directing the air away from the parachute that is the rear beaver is bound to help your top speed.

I've been pondering it lately and it would be interesting to see the results of testing on a car fitted and not fitted.

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awdmoke
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PostPosted: Tue Nov 10, 2009 10:43 pm 
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Many of the UK mini drag racers use rear diffusers to reduce drag and lift,
win - win

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cush
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PostPosted: Tue Nov 10, 2009 11:52 pm 
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I was looking at something a little less DTM, though. :)

Maybe a small venturi out the exhaust cutout, with a similar cutout on the opposite side too. Then have then exhaust come out the center.

Something like this would be rather cool though. :)
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Last edited by cush on Wed Nov 11, 2009 12:07 am, edited 1 time in total.

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Tadhg
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PostPosted: Wed Nov 11, 2009 12:06 am 
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cush wrote:
Kennomini wrote:
is it worth while adding alloy/plastic plates under the sub frames to smooth out the underside to reduce drag,

That's ground effects... and it's more to do with increasing downforce than lowering drag. Although, directing the air away from the parachute that is the rear beaver is bound to help your top speed.

Yes and no, Cush. If it has a diffuser at the back, or a venturi, then it's ground effects. If it's just making the underside of your car smooth, it's reducing drag. Which, if you look at the superminis built for economy, is something the manufacturers bother doing... So it might make some difference. Maybe enough to go from 101g/CO2 down to 99g/CO2, changing European/UK tax brackets... I think the old Audi A2 (the aluminium thing) had a smooth underbody and it closed the radiators at speed...
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