Re: top speed for a 21 super clipper with 356 cu. in

Posted by bkazmer On 2020/3/1 10:09:14

First, my condolences on dealing with the delightful combination of French-style bureaucracy and German-style inflexibility - the fast road to stuck on stupid. I've heard of more issues with old car registration in Germany than in any other country.

Top speed is usually when max power equals drag, or when max revs are reached. And as pointed out, changing drive ratio does not proportionately increase speed because of that. It is not uncommon for a car's top speed to be in direct instead of overdrive.

Some review articles would publish a "speed in gears" graph - this would be ideal, but I don't know if any exists for the 356. I would bring in any document on any similar Packard of any straight eight - once a number is typed into your paperwork no one is going to look at it again.