oPAULo

iTrader: (10)

He said readyset. Isn't it like a 10.5?

hairymuffin

iTrader: (105)

Ok, well I wouldnt worry about just one jump. A ready set won’t be adjustable as far as there’s and radio is concerned. Gearing might be your best option,rather than spending money on a new electronics... try going down a tooth on the pinion,also slipper setting

urnotevenwrg2

iTrader: (1)

He said Readyset 6.6, which means brushed motor. So, ageing brushed motor and nimh batteries are the problem.

Why would the Readyset be not adjustable? Why would you say not to worry about one jump, then tell him to make a gearing adjustment? His kids car has a brushed motor and nimh batteries, that is the reason he can't make the jump.

urnotevenwrg2

iTrader: (1)

If you have run the car a bunch, the brushed motor probably needs a rebuild. That is, if you can find a motor lathe and brushes. Brushed motors lose performance as they age.

It might be time to upgrade to brushless. You can probably keep the nimh batteries for a little while, but going to a lipo battery will be another big upgrade to performance.

Most people in the hobby have older equipment they don't use anymore. Ask around in the pits, you should be able to find some good deals.

hairymuffin

iTrader: (105)

I’m just saying he could mess with gearing as an easy cheap adjustment without spending money on electronics. I highly doubt that esc is adjustable. We don’t even know what the jump looks like for him not to be able to clear it. To many variables, car,driver, setup. Sounds like his kid is a new driver, so that’s why I said don’t worry about one jump. But yes nimble/brushed may play a role in this. I just don’t want to tell a new guy to spend another $150-200 on new electronics for him to have fun

Kraig

iTrader: (81)

It is also possible that the tire had excess flashing on it and he trimmed off the flashing to get it to sit properly. It isn't an exact science and sometimes you narrow it up to much.

Erob6.6

Thanks to everyone for the input... you hit the nail on the head, he's running novice, having fun, and I'm not looking to make the next big investment just yet. I know eventually I'll need to spring for a brushless motor/esc & lipo battery. He just barely makes the jump if he drives it perfect, but trying to see what I can tweak to help a bit.

I do have some various pinions so I will try that first. Along with adjusting the slipper.

But it seems by the response, going to a 3 gear midship vs. the 4 gear midship is not going to do that much? Parts to convert the transmission are pretty cheap, but hard to find detailed instructions on changing over/rebuilding.

urnotevenwrg2

iTrader: (1)

The 3 gear vs. 4 gear changes the dynamic of the car. On throttle a 4 gear car loses steering, which makes it difficult to carry corner speed, especially on a high grip track (like carpet). Additionally, the gyroscopic forces from the motor produce a rolling force as the car yaws through a corner. A 4 gear exerts this rolling force in the opposite direction of the corner. This makes a 4 gear car roll more to the outside of a corner, making it even more difficult to drive on a high grip surface.

The 3 gear should make his car easier to drive on carpet. The extra corner speed should make the jump easier to clear.

The RB6.6 manual has all the info to build your car with the different gear box.

Also, this is another reason why I don't like carpet. It creates a false sense of driving ability in new people. Put on the right tires and it is easy to drive around, but as soon as you get a little confidence and start to try to go faster. If the setup is off the car becomes impossible to drive fast, and the new person doesn't have the experience to make the adjustments to make the car easier to drive on the cheat code level of grip carpet provides.

76jimmy

iTrader: (28)

I also got my son the 6.6 rtr. Same story first thing we did was change tires and shock/oil package for carpet. We used a 22 or 23 tooth pinion for the small indoor track for better acceleration and cooler motor temps. The brushed motor didn't last long and I picked up a Orion 3000kv dDrive to replace the brushed system works perfectly. I haven't done the lowdown transmission upgrade yet on the rtr but on my RB6 it made a world of difference on the carpet. Enjoy & have fun racing with your boy!

Erob6.6

Thanks! Interesting never thought that far into it...sounds like 3 gear is worth a shot, a little more speed around the corner would really help in setting up for the jump. Then I'll drop a tooth on the pinion and we'll be cooking around the track.

urnotevenwrg2

iTrader: (1)

The low down gear box will be the best for carpet, but I would try the 3 gear since you already have it.

Have your boy focus on driving the proper line, no matter how slow he has to go. Have him watch the really good drivers to see where they place their cars. Have him watch stock and mod drivers (if you have both classes where you race) so he can see the difference between the lines they take.

oPAULo

iTrader: (10)

Yup. If your new to the hobby the difference between laydown and standup transmission won't mean much. For a good driver it's tenths of a second. For a new driver it's meaningless...

wisconsinbasher

iTrader: (31)

Just wondering how you guys sugest holding down the battery after removing the water fall. I took mine out and it really made the car come to life just seemed to really handle much better every where around the track . I was going to just tape it in but I'm racing at a track the required lipo bags to charge so looking for a good option .

oPAULo

iTrader: (10)

Seems like most just cut the waterfall to keep the battery strap.

hairymuffin

iTrader: (105)

Taping in your battery is a bad idea,cutting the waterfall is enough flex if that is what you are after. I would give maifield credit for this, not his fault but,it didn’t really take off until he made the switch to yokomo and a lot of people jumped on board. Did mine like opaulo’s