2LikesHPI Cup Racer 1M
10-18-2011, 04:03 AM
#2656
In the front I have the ball diff medium tightness.
10-18-2011, 04:11 AM
#2657
Hey guys, we just picked up three Cup Racers for our local track to try and spark up a budget spec class. I also picked up three sets of EZrun/Tacon gear and 3000mah 2s hardcase packs for them. I went with the finned 540 size 2100Kv Tacon so we can keep the speeds low and try to keep them running well on our "bumpy" on-road style track which was originally built for RC18s.
I was wondering if we should have any durability issues with such mild setups which will only be geared for 18-20mph. I have read several posts about the drive cups, but it would be nice if we could run these stock.
I was wondering if we should have any durability issues with such mild setups which will only be geared for 18-20mph. I have read several posts about the drive cups, but it would be nice if we could run these stock.
The plastic center front drive cup can break the 3 interlocking fingers. Get the Exotek hard coated Aluminum one.
Btw I'm running 17.5t boosted so I think your choice of motor/esc should be fine.
10-18-2011, 04:18 AM
#2658
Hi all, have been reading the thread with much interest. Got hands on the hpi cup racer drift version a while ago. Have added exotek carbon chassis, stood the front shocks up instead of laying down etc. Have now got it set up for racing, running 13turn brushless which runs well.
Am having an issue with the tail being really twitchy and wanting to spin out when running into corners. Not real sure what to do, have tried different springs, different shock positions etc
has anyone else had this issue?
Am having an issue with the tail being really twitchy and wanting to spin out when running into corners. Not real sure what to do, have tried different springs, different shock positions etc
has anyone else had this issue?
10-18-2011, 05:12 AM
#2659
tends to want to spin when turning in, so have tried to adapt by letting it roll though, but then when getting on throttle it also tends to loose the rear end. Its a bit perplexing, havent had anything like it before.
forgot to add am running the abc tyres and rims, sway bars etc
forgot to add am running the abc tyres and rims, sway bars etc
10-19-2011, 10:20 PM
#2660
Try these:
- More rear toe (3 degrees)
- Stiffer front springs (pink)
- Thicker front shock oil (70wt)
- Softer rear springs
- Thinner rear shock oil
- Use outer most hole on optional front shock tower
- Lay rear shocks down a hole
- Lower rear rollcenter (upper hole for camber link in rear shock tower)
- Raise front rollcenter (remover plate under front upper arm pin holder)
- Looser rear diff
- Tighter front diff
- Remover the rear swaybar
- If you sauce the tires do full for the back and inner 1/4 to 1/2 for the front
- Use some front toe out
- Use front anti-dive
10-20-2011, 02:22 AM
#2661
Cheers, appreciate the assistance, will start working way through the list and see what can be done
thanks :-)
thanks :-)
Try these:
- More rear toe (3 degrees)
- Stiffer front springs (pink)
- Thicker front shock oil (70wt)
- Softer rear springs
- Thinner rear shock oil
- Use outer most hole on optional front shock tower
- Lay rear shocks down a hole
- Lower rear rollcenter (upper hole for camber link in rear shock tower)
- Raise front rollcenter (remover plate under front upper arm pin holder)
- Looser rear diff
- Tighter front diff
- Remover the rear swaybar
- If you sauce the tires do full for the back and inner 1/4 to 1/2 for the front
- Use some front toe out
- Use front anti-dive
10-20-2011, 11:58 AM
#2663
tends to want to spin when turning in, so have tried to adapt by letting it roll though, but then when getting on throttle it also tends to loose the rear end. Its a bit perplexing, havent had anything like it before.
forgot to add am running the abc tyres and rims, sway bars etc
forgot to add am running the abc tyres and rims, sway bars etc
Also does it spin turning left and right?
Last edited by Raman; 01-02-2012 at 11:32 AM.
10-21-2011, 10:54 PM
#2668
Tech Rookie
I just got one from a friend of mine, runs great, but one problem. The front left tire will lock itself back when you turn it hard left. It will get stuck. I have to go to the car and turn the tire by hand than it is fine. Kinda hard to explain lol... Any ideas. It's almost like it has to much travel
10-21-2011, 11:01 PM
#2669
am using the 3deg insert into the rear hub, have done just about everything else mentioned above except changing the springs, am ordering now and have also ordered the front shock tower as thats about the only part not i dont have (and spring)
im just wondering if it is something to do with this car being the drift version
will keep experimenting
im just wondering if it is something to do with this car being the drift version
will keep experimenting