Skidude
Member
We’ve been working at getting this JR2 kart dialed in. Here are the numbers I got from Eddie, 59% left, 46% nose, 68% cross, -2.5 RF camber, .5 LF camber, caster centered on the blocks. Stagger 1.5” front, 1” rear. We have the front end geometry right. Here is where we are at 300 lbs. The driver is 115lbs and I’ve added 4lbs on the LF bumper and 7lbs on the left seat toward the rear.
52.8 LF. 81.6 RF
119.7 LR. 45.9 RR
57.5% left
44.8% nose
67.1% cross
The LF spindle has about 6 washer on top and we will have to move the left side panel up to keep the fairing off the tire. Tire in very close.
The RF spindle is one washer from being on the bottom. Tire can move in 1/8” if needed.
The LR is about 1/4” off the frame.
The RR is about 1.5” off the frame, hub against the snap ring.
I’m trying to figure out what to move to get it right. I don’t want to keep adding lead as he is already giving up 10 lbs with what I’ve added so far. How can I get that last 4 lbs off the RR and get it where it belongs? If I move the seat any further left he won’t be able to get his leg between the seat and the steering wheel to get in the kart. It’s offset a good bit right now, not inline with the steering shaft. The engine mount is using the center holes on an International PMI mount and slid all the way left.
My goal is:
55.5 LF. 82.5 RF
121.5 LR. 40.5RR
Maybe I’m close enough. We won’t be able to try it on the track until Dec. 4th and 5th.
52.8 LF. 81.6 RF
119.7 LR. 45.9 RR
57.5% left
44.8% nose
67.1% cross
The LF spindle has about 6 washer on top and we will have to move the left side panel up to keep the fairing off the tire. Tire in very close.
The RF spindle is one washer from being on the bottom. Tire can move in 1/8” if needed.
The LR is about 1/4” off the frame.
The RR is about 1.5” off the frame, hub against the snap ring.
I’m trying to figure out what to move to get it right. I don’t want to keep adding lead as he is already giving up 10 lbs with what I’ve added so far. How can I get that last 4 lbs off the RR and get it where it belongs? If I move the seat any further left he won’t be able to get his leg between the seat and the steering wheel to get in the kart. It’s offset a good bit right now, not inline with the steering shaft. The engine mount is using the center holes on an International PMI mount and slid all the way left.
My goal is:
55.5 LF. 82.5 RF
121.5 LR. 40.5RR
Maybe I’m close enough. We won’t be able to try it on the track until Dec. 4th and 5th.