Join Date: Jun 2007
Location: W. Vancouver BC
I get into arguments with guys that race old MGs. My MGA has a very sturdy frame, further reinforced by a careful roll bar installation and is a pretty stiff platform. The MGB guys have a unibody made up of welded together stampings which gives you a decently stiff chassis that can quickly deteriorate when the rocker panels rot and people bodge them and don't repair properly, resulting in extreme cases where you can't open both doors at once and expect to be able to close them again.
The MGB owners somehow manage to ignore the second part, about how bad it can get with any rust and assume they all have pristine mint cars that are as stiff as when they left the factory.
I guess we don't need to worry about rust as much on the Solstice, but I have a vision of some junior engineer analyzing the torsional stiffness of the original design, putting his stamp on it as being 'good enough' and then having to eat his words when the factory first sponsored solo competition and found out that his calculations had been garbage and the chassis flexed far to much for a competition setting.
They probably made him design the rear suspension kit (elaborate and expensive) to fix that and probably sent him off to shred the original figures on the stock chassis, never to be released to the public.
IIRC the Miata is also bad in this respect - at least the first guys fitting Ford V8s to them found that they twisted all over the place.
1957 Jamaican bodied MGA
1958 MGA Twin Cam (race car)
1962 MGA Deluxe Coupe
1965 Jensen CV8
1969 MGC roadster
1969 Lamborghini Islero S
1971 Jensen Interceptor
1988 Pontiac Fiero GT
2009 Pontiac Solstice GXP Coupe
Mods at http://www.solsticeforum.com/forum/f...thread-102178/
Bill in BC