Search found 30 matches

by Slalom
Sat Jun 01, 2013 6:50 am
Forum: Car & Semi-Truck Construction
Topic: Positive or Negative Camber for DFW
Replies: 9
Views: 1762

Re: Positive or Negative Camber for DFW

Excellent thanks!
by Slalom
Fri May 31, 2013 10:23 am
Forum: Car & Semi-Truck Construction
Topic: Positive or Negative Camber for DFW
Replies: 9
Views: 1762

Re: Positive or Negative Camber for DFW

Hi, recently on a test track, thought I had ourcar pretty wll tuned. Our car was significantly louder than faster cars on the track regardless of toe-in adjustments. What could this be? Run Cambered rears, and DFW, 3 wheels, smooth axles, krytox blend with teflon spray. Has anybody fiddled with plac...
by Slalom
Sun Apr 14, 2013 8:18 pm
Forum: General Car/Truck Racer Topics
Topic: RA car questions - Side rail design
Replies: 34
Views: 8004

Re: RA car questions - Side rail design

And what happens in the box at the end if the track? Is it full of foam, looks like an abrupt stop.
by Slalom
Sat Apr 13, 2013 8:37 am
Forum: Car & Semi-Truck Construction
Topic: Rail rider pulling opposite way? How to fix it?
Replies: 44
Views: 7190

Re: Rail rider pulling opposite way? How to fix it?

Thank you guys we have districts today. Problem: rear wheels aligned with negative camber (bent axles). DFW positive camber with perfect toe-in. DFW inset at least 1/16th inch. Non dominant rear wheel still rides rail lightly. this can be overcome by adjusting dominant rear wheel to steer the car. D...
by Slalom
Fri Mar 15, 2013 6:48 am
Forum: Car & Semi-Truck Construction
Topic: Rail rider pulling opposite way? How to fix it?
Replies: 44
Views: 7190

Re: Rail rider pulling opposite way? How to fix it?

i think that possibly the toe out issue on the right rear may be whats pulling the left rear into the rail? The confusing thing is that when doing the thumb tack front wheels off thing the car goes straight as an arrow for 5 feet, the car has even weight distribution.
by Slalom
Fri Mar 15, 2013 6:46 am
Forum: Car & Semi-Truck Construction
Topic: Rail rider pulling opposite way? How to fix it?
Replies: 44
Views: 7190

Re: Rail rider pulling opposite way? How to fix it?

Thanks!, they are bent axles, so maybe, i will try to tweak. Race is tomorrow. I use a level tuning board and an 8 foot track. The axles are grooved so it is diificult to adjust the angle without bending within the groove which would obviously be bad, maybe i will swap out axles, and start over. The...
by Slalom
Thu Mar 14, 2013 8:36 pm
Forum: Car & Semi-Truck Construction
Topic: Rail rider pulling opposite way? How to fix it?
Replies: 44
Views: 7190

Re: Rail rider pulling opposite way? How to fix it?

HI. So we have car built, looks really sharp good aggressive COG, aligned rear wheels using sporty's technique with front wheels off, some scotch tape and lube under the front. rear wheels aligned, ride on axle hub back and forth, sanded off 1/8th inch from DFW. Still even with DFW just kissing the ...
by Slalom
Thu Mar 14, 2013 4:09 pm
Forum: Car & Semi-Truck Construction
Topic: Rail Riding - "How To Guide"
Replies: 188
Views: 83562

Re: Rail Riding - "How To Guide"

HI. So we have car built, looks really sharp good aggressive COG, aligned rear wheels using sporty's technique with front wheels off, some scotch tape and lube under the front. rear wheels aligned, ride on axle hub back and forth, sanded off 1/8th inch from DFW. Still even with DFW just kissing the ...
by Slalom
Thu Mar 29, 2012 7:28 pm
Forum: Car & Semi-Truck Construction
Topic: Rail Riding - "How To Guide"
Replies: 188
Views: 83562

Re: Positive camber on DFW

Thanks thought maybe speed would push it out, maybe the rail Your description of seeming to "encourage" the DFW was actually right on. If the DFW hits a defect in the rail, it will slide a bit outward on the lubricated nail before it hits the nail head and jars the front of the car body. To help ma...
by Slalom
Thu Mar 29, 2012 7:10 pm
Forum: Car & Semi-Truck Construction
Topic: Rail Riding - "How To Guide"
Replies: 188
Views: 83562

Re: Positive camber on DFW

FatSebastian wrote:
Slalom wrote:The positive camber seems to "encourage" the DFW to ride against the car body, rather than the axle head, is there any way around this? Or is [that] the nature of running DFW with + camber
That is the expected behavior.
Thanks thought maybe speed would push it out, maybe the rail