Xray X1 - Formula One Car
#977
I too experienced this problem, which is the rear inside wheel lifting in the middle of turns alowing the inside wheel to spin freely making the noise you can hear.
Even on a low grip surface, the rear end generates a lot of grip, making the car lean over a lot, and lifting the rear wheel.
To solve this I used stiffer side springs, and higher cst oil in the roll shock (800), and placed a 1mm shim under the front pivot balls of the side links to alow more suspension movement without having the side links hitting against the main chassis.
My F113 also had the same issue which frustrated me to no end, because I believed the diff was coming loose during a race & losing drive out of the turns, until I changed to stiffer side springs & placing the 1mm shim under the front side link balls.
Like the Xray, the F113 has a very wide chassis, along with having the side link balls mounted too low.
Other F1 cars that have a more narrow chassis, with more space between the chassis & side links don't experience this problem as much.
*edit* If you find that the rear wants to swing out on corner exit, try changing the front caster to 6 degre's instead of 9.
Cheers
Rob.
Even on a low grip surface, the rear end generates a lot of grip, making the car lean over a lot, and lifting the rear wheel.
To solve this I used stiffer side springs, and higher cst oil in the roll shock (800), and placed a 1mm shim under the front pivot balls of the side links to alow more suspension movement without having the side links hitting against the main chassis.
My F113 also had the same issue which frustrated me to no end, because I believed the diff was coming loose during a race & losing drive out of the turns, until I changed to stiffer side springs & placing the 1mm shim under the front side link balls.
Like the Xray, the F113 has a very wide chassis, along with having the side link balls mounted too low.
Other F1 cars that have a more narrow chassis, with more space between the chassis & side links don't experience this problem as much.
*edit* If you find that the rear wants to swing out on corner exit, try changing the front caster to 6 degre's instead of 9.
Cheers
Rob.
That's one thing I noticed after I had built my car, the rear end had a lot of droop/sag in it, maybe need a spacer under the piston in the main shock to curb that.
Need to try different rebound settings as well, for I suspect this will also affect the handling too.
Need to try different rebound settings as well, for I suspect this will also affect the handling too.
#978
I plan on getting back out for more practice w/ my F1 later this week. I hope to get it completely dialed in to my liking and ready for its first race in July (if all goes well).
#979
Tech Elite
iTrader: (2)
Also, if you installed the roll shock as per instructions, when the rear suspension depresses to a certain amount, the motor mount will hit against the roll shock end. To fix this, just flip the roll shock around so the end that has the grub screw is on the motor mount side.
#980
Also, if you installed the roll shock as per instructions, when the rear suspension depresses to a certain amount, the motor mount will hit against the roll shock end. To fix this, just flip the roll shock around so the end that has the grub screw is on the motor mount side.
-----
I did get out for another day of practice yesterday. I feel that slightly tightening the ball diff about 3/4 of a turn solved the noisy diff' issue. I think my diff may have been just a tad too loose and was spinning a bit more than it should have. It is a sensitive adjustment that in my opinion is really done by adjusting and driving, adjusting and driving, adjusting and driving ...till you get it right and to your liking.
I also got my braking adjusted nicely. Only thing I'd prefer is if it could turn a bit tighter, ...but I may be comparing it to my TC car too much. I just have to slow to take tight turns, but sounds like this is how F1's drive?
I feel my car is dialed in and I am confident to enter it in its first race the weekend after next (we don't have races over the July 4th weekend).
#981
Front & Rear Wings
------------------
Which are using for indoors on carpet?
------------------
Which are using for indoors on carpet?
#982
Ride Tyres
----------
Tips & Tricks to get them to work please
----------
Tips & Tricks to get them to work please
#983
Tech Elite
iTrader: (32)
Ran the 2mm chassis,rear pod plate and floating servo mount today. Kept setup same as with previous chassis. Car had more grip both front and rear which was not surprising. Car had way more corner speed and felt more comfortable to drive at the limit. More overall steering without sacrificing rear grip or binding up the rear. This was on asphalt track with varying conditions.
https://youtu.be/rn37cB2yA9A
https://youtu.be/rn37cB2yA9A
Last edited by racenut123; 06-28-2015 at 11:21 PM.
#984
Racenut, -is that the new (since moving to San Jose) Norcal parking lot track in the video?
just wondering where in the bay area you race?
just wondering where in the bay area you race?
#985
Tech Elite
iTrader: (32)
eRC1:
No this is the parkinglot track that is called Pole Position RC. It's a brand new race program in the east bay. It's nice for those that don't want to drive all the way down to San Jose. It's 5 minutes from the old Norcal Hobbies.They just had their 1st race. Next raceday is July 11th.
I will be racing Carpet at 209 over the Fall/Winter and Pole Position during the summer.
No this is the parkinglot track that is called Pole Position RC. It's a brand new race program in the east bay. It's nice for those that don't want to drive all the way down to San Jose. It's 5 minutes from the old Norcal Hobbies.They just had their 1st race. Next raceday is July 11th.
I will be racing Carpet at 209 over the Fall/Winter and Pole Position during the summer.
#986
Wait: the new one piece servo mount is floating?? Awesome!!
John: How would you compare the Pole Position grip to Ripon at night or Norcal when YOU spray it? Just trying to define your feedback on the chassis more to something I know
John: How would you compare the Pole Position grip to Ripon at night or Norcal when YOU spray it? Just trying to define your feedback on the chassis more to something I know
#987
eRC1:
No this is the parkinglot track that is called Pole Position RC. It's a brand new race program in the east bay. It's nice for those that don't want to drive all the way down to San Jose. It's 5 minutes from the old Norcal Hobbies.They just had their 1st race. Next raceday is July 11th.
I will be racing Carpet at 209 over the Fall/Winter and Pole Position during the summer.
No this is the parkinglot track that is called Pole Position RC. It's a brand new race program in the east bay. It's nice for those that don't want to drive all the way down to San Jose. It's 5 minutes from the old Norcal Hobbies.They just had their 1st race. Next raceday is July 11th.
I will be racing Carpet at 209 over the Fall/Winter and Pole Position during the summer.
#988
Just checked out the FB page, ...I saw Tino in one of the videos. HA, -Tino is a fun guy, ..i've raced w/ him!
1) So do you have a schedule of races?
2) What time do you guys usually end? -looks like there are only 5 or 6 classes (I could race in 3 of them) ...but would mean an earlier day (my current club goes til 7pm ...gets to be a long day). so that would be good and the wife would love me getting home earlier.
3) Can I use the Mylaps 2-wire transponders (I don't feel like buying all new transponders)!
4) Wow, I may have to make it out there soon!
1) So do you have a schedule of races?
2) What time do you guys usually end? -looks like there are only 5 or 6 classes (I could race in 3 of them) ...but would mean an earlier day (my current club goes til 7pm ...gets to be a long day). so that would be good and the wife would love me getting home earlier.
3) Can I use the Mylaps 2-wire transponders (I don't feel like buying all new transponders)!
4) Wow, I may have to make it out there soon!
#989
Tech Elite
iTrader: (32)
My comparison was from our practice days at Pole Position to racing there yesterday. I made no setup changes except the chassis/pod plate. If your car feels like it could use a little more steering/more connected feeling, the 2mm chassis helped in this department.
#990
Tech Elite
iTrader: (32)
Just checked out the FB page, ...I saw Tino in one of the videos. HA, -Tino is a fun guy, ..i've raced w/ him!
1) So do you have a schedule of races?
2) What time do you guys usually end? -looks like there are only 5 or 6 classes (I could race in 3 of them) ...but would mean an earlier day (my current club goes til 7pm ...gets to be a long day). so that would be good and the wife would love me getting home earlier.
3) Can I use the Mylaps 2-wire transponders (I don't feel like buying all new transponders)!
4) Wow, I may have to make it out there soon!
1) So do you have a schedule of races?
2) What time do you guys usually end? -looks like there are only 5 or 6 classes (I could race in 3 of them) ...but would mean an earlier day (my current club goes til 7pm ...gets to be a long day). so that would be good and the wife would love me getting home earlier.
3) Can I use the Mylaps 2-wire transponders (I don't feel like buying all new transponders)!
4) Wow, I may have to make it out there soon!
2}I did the math. Even with a bunch more participation, we should be done by about 3pm.
3}yes the my laps 2 wire works perfect.
4}You should! FREE DONUTS in the morning and Free Icecream sandwhiches
for everyone before the Mains. Fernando is an innovator.