Alan,
Saw a dark red Ferrari Testa Rossa at Lime Rock last Monday; it was not the fastest car, but it was a beauty.
Motor you selected is looking healthy. The pedigree is good! The Vintage setup would be axle spacers between hub and bearing on each side, with crown gear having no groove for the motor shaft (it's the only system I know!).
You may find that you get better grip if you stiffen the rear axle carrier so it cannot vibrate relative to the rest of the frame. I fixed a Monogram frame this way, with HO rails running beside the motor all the way to the rear motor mounts, soldered the whole length. Other guys stiffen the frame with tubes from the top of the bearing carriers to the motor mount bracket, making it a space frame at the rear. But I prefer rails soldered to the underside, where the weight is needed. The EJ's chassis is a repro of the Strombecker frame, which was copied from the Monogram frame of 1964, which was inspired by chassis scratch built by the midwestern US club racers of that era, who used heavy brass, not that thin-gauge stuff.
Also, you might want to experiment with a loose body mount. Put a blob of some rubbery glue in each of the screw holes, to damp the vibration of the body on the chassis.
The car is looking good!
Saw a dark red Ferrari Testa Rossa at Lime Rock last Monday; it was not the fastest car, but it was a beauty.
Motor you selected is looking healthy. The pedigree is good! The Vintage setup would be axle spacers between hub and bearing on each side, with crown gear having no groove for the motor shaft (it's the only system I know!).
You may find that you get better grip if you stiffen the rear axle carrier so it cannot vibrate relative to the rest of the frame. I fixed a Monogram frame this way, with HO rails running beside the motor all the way to the rear motor mounts, soldered the whole length. Other guys stiffen the frame with tubes from the top of the bearing carriers to the motor mount bracket, making it a space frame at the rear. But I prefer rails soldered to the underside, where the weight is needed. The EJ's chassis is a repro of the Strombecker frame, which was copied from the Monogram frame of 1964, which was inspired by chassis scratch built by the midwestern US club racers of that era, who used heavy brass, not that thin-gauge stuff.
Also, you might want to experiment with a loose body mount. Put a blob of some rubbery glue in each of the screw holes, to damp the vibration of the body on the chassis.
The car is looking good!
