jlthunder said:
I know my '72 Raylle rode and handled much differently(better) than my ' 74 Luxus and the GT is completly different.
The Manta Rallye is a little different, it has stiffer shocks. Considering they re all 30 years old, I would guess none have thier original shocks anymore so that point is moot. Other than that all US Mantas are the same, in Europe they had 185/sr13s mounted on teh rallyes and GTE models. Again, anyone driving a Manta that hasnt changed the tired from the 168/13 bias ply by now needs thier heads examined
There maybe other differences from year to year, rubber bushing changes, etc..
Also there IS a difference in handling of the Asconas to Mantas. The 4 door is heavier and the 2 door lighter than the Manta. Which affects handling. Told the 4 door is more balanced, while the 2 door is a tad quicker.
AS for the GT having parts availble... It needs them. The Manta does not.
Lets compare avaiable parts to improve suspension
Adjustable Panhard rod, is a custom part for either car.
Poly Bushings - Available for both
Performance/Gas shocks - Available for both
Custom Springs - Available for both (they are again custom parts)
Thats all the Manta needs. Unless you want to go Bob Legere on it..
As for the GT, you need to ADD these :
Front sway bar (Manta already has it stock)
Rear sway bar (Manta already has it stock)
Shackles, or fiberglass leaf spring (Manta has a modern coil over shock design)
You GT owners can keep trying to convince yourself otherwise, but no matter how much work goes into the stock GT suspension, its still a modified Kadett suspension. The Manta/Ascona design was years ahead of the GTs design.