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Old 28 Aug 2020, 10:33 (Ref:3998466)   #241
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Apologies for veering off topic here but wasn't there something about the BMW's having a flat floor a few years ago that had to be altered mid-season?
Yes - I seem to remember Collard rolled at Silverstone and the other teams saw the bottom of the BMW and went "hang on a minute". I believe it was clever interpretation of the rules - so rather than having a flat floor they had a large flat section incorporated as part of another component that had the effect of giving the car a flat bottom without it actually being the floor.
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Old 28 Aug 2020, 10:51 (Ref:3998469)   #242
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Originally Posted by BertMk2 View Post
Yes - I seem to remember Collard rolled at Silverstone and the other teams saw the bottom of the BMW and went "hang on a minute". I believe it was clever interpretation of the rules - so rather than having a flat floor they had a large flat section incorporated as part of another component that had the effect of giving the car a flat bottom without it actually being the floor.
This was the view teams got:



Which when you compare to other NGTC machinery:


shows how much WSR had 'protected' the underside with panels.
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Old 28 Aug 2020, 11:15 (Ref:3998475)   #243
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Originally Posted by BertMk2 View Post
Yes - I seem to remember Collard rolled at Silverstone and the other teams saw the bottom of the BMW and went "hang on a minute". I believe it was clever interpretation of the rules - so rather than having a flat floor they had a large flat section incorporated as part of another component that had the effect of giving the car a flat bottom without it actually being the floor.
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This was the view teams got:



Which when you compare to other NGTC machinery:


shows how much WSR had 'protected' the underside with panels.
Thanks chaps, this was what I was thinking of
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Old 28 Aug 2020, 11:28 (Ref:3998477)   #244
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Talking about the underside of NGTC cars - and particularly the routing of the exhaust. Pop trivia question - why is the exhaust mandated to exit where it does on all NGTC cars?
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Old 28 Aug 2020, 11:40 (Ref:3998479)   #245
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Is it to stop burning the legs of the people pushing the car out of a gravel trap?

More seriously though - I know what the regulation states (LHS of car, between wheel, within perimeter etc) but I can only think that this is to prevent the design and use of a blown diffuser or some other related (mis)use of the Coanda effect.
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Old 28 Aug 2020, 11:45 (Ref:3998480)   #246
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When the turbo was first added at the end of the S2000 regs, the car was felt to be too quiet.
To counter this, and add to the spectacle, the regs specified a 'trumpet' that all cars use to make the exhaust louder.
It was chosen to fix this on the left, because it faces the crowd at a clockwise circuit and also means the flames are visible by the crowd.
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Old 28 Aug 2020, 11:57 (Ref:3998481)   #247
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Talking about the underside of NGTC cars - and particularly the routing of the exhaust. Pop trivia question - why is the exhaust mandated to exit where it does on all NGTC cars?
According to RaceTech magazine, it is because most tracks run clockwise and the spectators get to enjoy the sheets of flame emitted on overrun as well as the noise from the engine.
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Old 28 Aug 2020, 12:15 (Ref:3998482)   #248
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Well I never. "The show", eh?
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Old 28 Aug 2020, 12:24 (Ref:3998483)   #249
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I think they should have 4 exhausts, 2 at each side and 2 at the rear.
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Old 28 Aug 2020, 13:55 (Ref:3998492)   #250
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Two at the rear: I'm thinking this would allow suitably oven gloved marshals a further method to move cars out of harms way just like an overgrown wheelbarrow.
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Old 28 Aug 2020, 15:14 (Ref:3998506)   #251
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TOCA NGTC build guide 2012 pdf
https://www.google.co.uk/url?sa=t&so...Z2MywaOVQhrDIk

Race Tech article on the early Motorbase Focus ST
https://www.google.co.uk/url?sa=t&so...9lJfIOwqtxYUSf
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Old 28 Aug 2020, 15:56 (Ref:3998514)   #252
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While we are way off the topic of racing at Oulton Park, for those who may be interested in that sort of thing, below is the 1-series having it's rear wing downforce setting being established.

Note that it is done on a car in road spec, not the NGTC build.
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Old 28 Aug 2020, 16:13 (Ref:3998516)   #253
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While we are way off the topic of racing at Oulton Park, for those who may be interested in that sort of thing, below is the 1-series having it's rear wing downforce setting being established.

Note that it is done on a car in road spec, not the NGTC build.
Thanks for posting that crmalcolm.
I must say that I find it very interesting to see that this is tested (and therefore the position is set) on a standard road car without all of the other add-on aerodynamic parts added. I am sure that it should be possible to alter the effect of the rear wing by careful use of the additional aero parts, or isn't that the case as the wing is only within the body width.
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