Hi Kim,
For the Porsche spec race I think we should standardize on the sidewinder chassis. It is more “correct” for the car and simplifies setup to some extent. We have struggled getting sidewinders tuned to our track, although not impossible.
Yes to the Datsun 510.
Will need another member to weigh in on the group 5 car. I will be campaigning an M1, but I haven’t run this series in many years and never with a Racer Sideways chassis so can’t offer any help here.
Build it strong.
Keep it simple.
Make it work.
(Leroy Grumman)