setup for jr seraph

[jwiseman19]

Going to setup an '10 seraph for a jr driver. She weighs 55 lbs and is about 55 in tall. What are start up numbers. The track is low bite dust on burris tires. clone (red plate i think). Adults on pro clone are running 15/16 -64 gear. paperclip track around 1/5 mile. thanks

 

[SoCo Tire Treatments]

48 nose, 54- 54.5 left, 61 cross, 7 and 10 caster, 3/8 lf camber, 2.75 rf camber, 1.5" stagger front, 1" stagger rear.

 

[James@PRC]

48 nose, 54- 54.5 left, 61 cross, 7 and 10 caster, 3/8 lf camber, 2.75 rf camber, 1.5" stagger front, 1" stagger rear.

I'd go with this set-up, although I'd be tempted to run your nose around 47.0%, not 48.0%.

 

[jwiseman19]

What about the seat? where should it be mounted in the rails or do I just put it where I can get the numbers I want? How far should the back of the seat be off axle?

 

[James@PRC]

What about the seat? where should it be mounted in the rails or do I just put it where I can get the numbers I want? How far should the back of the seat be off axle?

It depends on the make and size of the seat.

 

[Ltg]

For drivers that small it's typically more important to have them comfortable than it is to get the seat mounted in the outright best place. Typical numbers I see are RR strut 4.5 to 5" off the motor rail, seat back 9 to 11" off the axle, front of the seat 3/4" left of center to the steering upright, front sliders roughly 1.25 to 1.5" from being all the way forward, seat bottom near the top of the frame rails. These numbers assume a pretty low HP class.

Todd
www.dynamicsofspeed.com