Quote:
Originally Posted by KA
IIRC the turbo would also have had to run heavier than the Atmo version- Group A employed a form of equalisation based on linking engine size to minimum weight and tyre size, with an engine size equalisation factor (the 1.4 multiplier) for turbo cars- so a 4.9 litre Holden Commodore would always have a higher minimum weight than a 2-litre turbo RS500
http://homepage.mac.com/frank_de_jong/Pages/part5.html
The Supra turbo, treated as a 4.1 litre car was therefore looking at a minimum weight of 1255kg (1260 for 1988) compared to the 1035kg of the 3-litre (reduced to 1020 for 1988).... |
The equivalency factor always confused me a little, not in terms of what cars it was applied to, but why it changed from 1.4 to 1.7 between 1987 and 1988?
I'm just wondering if there had been some lobbying from a manufacturer that may have been penalised under the old level or something, but then again if a cars capacity was marginal at, say, the Class A, B engine size cut off point of 3000cc, you would rather your car go up against an M3 than an RS500 if it was a 'cc' thing.
On the other hand, nothing could touch either of those cars in their respective classes, at least not in Europe.
Just thought's for discussion as it might be relevant to the Supra!!