bobinspain
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| posted on 17/1/12 at 05:58 PM |
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Wishbones and handling.
This may sound crackers, but facebooking with the French driver of the Indy in the dvd 'mk indy gsxr vs gt3 vs Z06' I casually enquired
whether his car had any specialist setting up, in light of its relative docility in corners and its stable nature, particularly at high speed.
Turns out he had it set up by a Caterham Cup driver who swapped left and right front uppers. I couldn't quite determine if he inverted them too,
but the trackday footage from last year, (previously recommended by another poster) shows how his 2003 car impressively skins the GT3 and
'Vette.
The guy can certainly drive and I just casually asked who'd set the car up. Out came the above information.
Anyone else tried anything remotely similar and found it successful?
http://www.youtube.com/watch?v=4mWVX9GnKz0
[Edited on 17/1/12 by bobinspain]
[Edited on 17/1/12 by bobinspain]
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daniel mason
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| posted on 17/1/12 at 06:30 PM |
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are the front uppers not identical? and if you were to turn them upstide down (eg putting top rod end further towards front of car) it wouls alter
caster greatly i would think.although im no expert
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Wadders
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| posted on 17/1/12 at 06:45 PM |
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Can't comment on the suspension setup, but the tussle with the porsche shows up the achilles heel of becs on track days, not quick enough to
pass on the straights, and then gets held up through the bends......can be very very frustrating, Have suffered this with more mundane tin tops, never
mind a GT3.
Al
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Hellfire
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| posted on 17/1/12 at 06:55 PM |
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Lack of speed on the straight isn't particularly a BEC trait though Al, more of a seven style trait I'd say. Bricks aren't
particularly aerodynamic. 
Phil
[Edited on 17-1-12 by Hellfire]
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ReMan
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| posted on 17/1/12 at 07:46 PM |
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They must have beedn fitted upside down/wrong side first off?
www.plusnine.co.uk
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bi22le
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| posted on 17/1/12 at 08:19 PM |
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After watching the vid the car certainly looks stable, he dont seem to be trying that hard or is obuer smooth. Wheel spin and oppo, you know the
signs.
The circuit is also very tight and twisty and a BEC could keep up with a GT3 if the speeds stay low.
I dont think the result would be the same on a a long GP track like Silverstone. Also the car in front is only ever as quick as the driver.
I skinned (round the outside) a 500bhp supra out of clearways on to the straight at brands. I dont think for a second my car is quicker than a 500bhp
supra at 60mph+ drag, he just was not trying.
Watch a GT3 German driver go round the ring 'trying'. A BEC will have trouble then. Mind you Sornz2 (SP) on here may shoot me down. He is
not slow at the ring with his MNR ZX10 BEC.
So I think, get a geometry setup as per MK track settings and get supercar slaying. Thats the aim of the game, go and embarrass some rich boys!
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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nick205
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| posted on 17/1/12 at 08:26 PM |
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The Indy certainly looks well balanced (better than mine was that's for sure). I'd love to know what speed they're doing at the
point where the GT3 pulls away on the straights....80-90mph maybe?
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daniel mason
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| posted on 17/1/12 at 08:57 PM |
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soren has a zx12 in his mnr,on 13" wheels and full roll cage. he does loads of trips to the ring i think. he also does track days with pwl in
his mnr f22c which is much quicker on the straights but not under braking or through the bends
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bobinspain
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| posted on 17/1/12 at 10:00 PM |
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ReMan.
No, he bought the car assmbled as standard and complained of a worrisome 'twitchiness at speed' to his Caterham Cup pal who suggested the
solution they adopted.
I still can't get my head around how fitting parts cock-eyed made the car handle supremely well.
The way Romauld made the 9 year old car perform was a revelation. Bang per buck, it blew away the more exotic machinery by an order of magnitude.
It goes to show that 'if you get it right' whether by design or pure chance, the effect is the same.
I know 'a little knowlwdge is a dangerous thing' but that's all I have to work with. My thinking is that the wishbone swap altered
the geometry of the front suspension setup in such a way as to cure the high speed twitch whilst not appearing to diminish cornering stability.
He's looking to sell and buy himself an XTR2 or a Spire.
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bi22le
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| posted on 17/1/12 at 10:58 PM |
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quote:
Originally posted by daniel mason
soren has a zx12 in his mnr,on 13" wheels and full roll cage. he does loads of trips to the ring i think. he also does track days with pwl in
his mnr f22c which is much quicker on the straights but not under braking or through the bends
ah zx12 your right, my bad. F22c is that a Honda s2000 engine?
i guessed he goes to the ring alot, he just happened to be there the weekend i went. he also has a tattoo of the ring and his fastest time on his leg
which shows some commitment!!
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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