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Guys
My Fisher Fury gets a bit 'light' at the front at 'cough' high speed and I was looking for an aerodynamic solution to provide a
bit more downforce at the front. I would like peoples views/experience as to whether thy think this will have a positive effect?
Thanks
Harvey
Any other 'elegant' solution?
Mine feels a bit light as well but I'm mostly used to it now.
I have seen people fit front splitters to them that goes the length of the car.
Let me know if you find anything suitable.
I would think it would be difficult to get any bolt on parts that make a significant difference without a lot of wind tunnel/setup costs. Those canards look pretty small - would they really make an appreciable difference? Why not make some MDF wings etc and try them?
quote:
Originally posted by hobbsy
Mine feels a bit light as well but I'm mostly used to it now.
I have seen people fit front splitters to them that goes the length of the car.
Let me know if you find anything suitable.
quote:
Originally posted by twybrow
I would think it would be difficult to get any bolt on parts that make a significant difference without a lot of wind tunnel/setup costs. Those canards look pretty small - would they really make an appreciable difference? Why not make some MDF wings etc and try them?
try having a word with furoserie on pistonheads head may be able to design something for you that you can then build
how about a 30 kg mass mounted on the front? stop it being light
quote:
Originally posted by Vindi_andy
try having a word with furoserie on pistonheads head may be able to design something for you that you can then build
quote:
Originally posted by nib1980
how about a 30 kg mass mounted on the front? stop it being light
I can't really see those canards giving much downforce really ...... except on your bank balance More of a fashion accessory imo
How about using MDF + car body filler. Cut, fill, smooth etc, then bolt/rivet in place. Make a series of different sizes/shapes and see how they feel. Once you have an idea as to what works, recrate it in GRP (or carbon if feeling flush). It will be a simple shape so should be able to blend it in quite nicely with existing bodywork.
How about using MDF + car body filler. Cut, fill, smooth etc, then bolt/rivet in place. Make a series of different sizes/shapes and see how they feel. Once you have an idea as to what works, recreate it in GRP (or carbon if feeling flush). It will be a simple shape so should be able to blend it in quite nicely with existing bodywork.
They can also be C'anard to fit!
How about the Lotus designed ones like my Avatar ? MDF ones will keep the front down with their weight!
Caber
Please don't put those things on your car. Pretty please?
Whilst they might well actually solve your problem, the way they'll do it won't be very elegant at all.
The two main sources of front lift on a Fury are air rushing up the front face of the front wheels due to insufficient shielding of them by the
tapered bumper and insufficient ducting of cooling airflow from the nose intake to the radiator.
The first one is harder to fix and can be done by extending the lower outboard edges of the bumper outwards so that you can't see as much of the
tyres when viewed from the front. And/or you can fit little vertical fences in front of the wheelarches like you'll see on many road cars these
days - particularly the German ones. These also restrict the flow of air up the front of the wheels, and hence reduce both front lift and drag.
The cooling thing is easier to fix. Just make sure that any and all air entering the bumper aperture has absolutely no choice but to go through the
radiator matrix. If it is given any opportunity to do otherwise it will do, since the journey through the radiator is deeply unpleasant for it.
Since this air will be at a relatively very high pressure, allowing any of it to bleed into the engine bay area will cause a change in the pressure
difference between the upper & lower surfaces of the bonnet. Being a chuffing great big surface area it doesn't take much of a perssure
difference to generate a big force and there you have your extra lift. Alternatively, if you want/need to use some 'blow-by' to provide
direct cooling of the engine/alternator/whatever, then put some louvres in the bonnet surface to allow any pressure build-up to be released.
Hope this helps.
I was planning to make a radiator duct out of some of that lightweight but strong corrugated plastic sheeting. Just got to make it butt up as close
as possible without fouling anything when opening closing bonnet.
Wheelarch mods sound interesting but like you say more fiddly to do.
I've also got small small cut outs on the rear edge of my bonnet bulge which I think help a little bit because they let the air out. I know a lot of people don't bother cutting these out as its quite fiddly.
quote:
Originally posted by Rob Palin
Please don't put those things on your car. Pretty please?
Whilst they might well actually solve your problem, the way they'll do it won't be very elegant at all.
The two main sources of front lift on a Fury are air rushing up the front face of the front wheels due to insufficient shielding of them by the tapered bumper and insufficient ducting of cooling airflow from the nose intake to the radiator.
The first one is harder to fix and can be done by extending the lower outboard edges of the bumper outwards so that you can't see as much of the tyres when viewed from the front. And/or you can fit little vertical fences in front of the wheelarches like you'll see on many road cars these days - particularly the German ones. These also restrict the flow of air up the front of the wheels, and hence reduce both front lift and drag.
The cooling thing is easier to fix. Just make sure that any and all air entering the bumper aperture has absolutely no choice but to go through the radiator matrix. If it is given any opportunity to do otherwise it will do, since the journey through the radiator is deeply unpleasant for it. Since this air will be at a relatively very high pressure, allowing any of it to bleed into the engine bay area will cause a change in the pressure difference between the upper & lower surfaces of the bonnet. Being a chuffing great big surface area it doesn't take much of a perssure difference to generate a big force and there you have your extra lift. Alternatively, if you want/need to use some 'blow-by' to provide direct cooling of the engine/alternator/whatever, then put some louvres in the bonnet surface to allow any pressure build-up to be released.
Hope this helps.
Making little 'speedflaps' in front of the wheels shouldn't be all that difficult. I did it on my MR2
(like this), it's fairly effective 
I was just about to say wait until Rob Palin comes along for some professional advice - then I read his message
I'd go with baffleing the rad intake, undertray/flat bottom the engine bay, vent air via the tunnel/bonnet vents/through side pods and if that
fails a front splitter.
http://www.carbonmods.co.uk/showProduct.asp?prodID=93
What ever you do let me know if it works because I'm going to have the same problem!
ps. did you get the u2u?
adrian
I'd be a bit wary of fitting a big splitter like this. It would dramatically reduce front lift, sure, but since the original problem isn't
fixed you're generating downforce to counter-act lift and you have to pay a penalty in drag for both, not just one. It's better to treat
the origin of the lift problem than to try to overpower it.
Plus, Furys have a reasonable amount of rear lift too, but this is masked because the front is so high (imagine a see-saw tilted back). As you reduce
the front lift you allow the rear lift to become more prominent and so fitting something as powerful as that big splitter should really require some
attention to be paid to the rear too. That's a lot harder though, because of the open cockpit. It's probably best to just calm the front
down a bit, but not go over the top.
yeah I can see that which is why it was the "...if all else fails" option...and the cost!
adrian