Rick Hohwart

Using the wrong body (and wrong tires) will leave you facing an uphill battle.

Billlance

Im a little wet behind the ears here and need a little assistance. What would make my TC6 pull to to left during hard acceleration and pull to the right during braking? Please help. Thank you for your help.

Buckaroo

iTrader: (3)

Yes, those would be fine for RCGT. 200mm bodies fit fine onto 190mm cars. Some choose to use offset front/rear wheels. +3mm front, +6mm rear is the general guideline, but it can vary somewhat depending on the body. As a bonus, HPI makes 0 offset as well as matching +3 and +6 wheels.

pcar951

iTrader: (23)

Funny...I'm chasing the exact same thing with my boosted car (carpet). I'm guessing, piled up bearing or a binding drive shaft. I'll let you know once I tear it down.

cwoods34

iTrader: (10)

I've had the spur layshaft screws come loose or come out on one side and it caused funky handling like that. After a few laps it tends to turn the spur into a smooth plastic disc

Also, make sure the spur bulkhead and motor mount screws are all tight. If one loosens, the motor torque can lightly tweak the chassis when you accelerate or brake.

Tim Kowal

iTrader: (9)

Check to make sure slipper spool is tight and not slipping under acceleration or braking,

Johnny Wishbone

iTrader: (6)

Check your pin cushions to make sure one of them isn't broken.

pcar951

iTrader: (23)

Checked all the bearings, drive shafts, hinge pins you know, the usual suspects...all good.

But, last night's club race I noticed that my servo screws were lose so, i just tightened them, turns out that there was a bunch of crud under the servo. Created a pretty good tweak in the front end of the car, don't know how I didn't see it, I had it on the blocks about 10 times. We'll see if the problem's solved on practice night (Tuesday).

olly986

To me, this is a weak point on our cars, the 2.5mm screws are of poor quality and get loose too easily (destroying you spur gear in the process, happened twice on our two cars) then if you threadlock them, it becomes a pain to remove the two of them at the same time, as you cannot remove one then the other.

Still a very tiny amount of threadlock is my answer to this so far and the change of screws to straight screw driver heads. If you do not use threadlock, check them regularly.

epowr_Racing

hi , do you guys run ceramic or non , and if yes what are the advantages, as far as performance, and does it affects the class group,

olly986

I don't personally, when the original bearings are going bad I replace them with new ones, better quality ones for the 4 hubs for sure, as they are the ones that gets damage first.

The rest are actually not bad, I was a little worried about the little flanged ones on spur gear, but they're holding good so far.

If I was to invest in ceramics, I would just look for the ones that really mattered in the drivetrain, but are they really that much better?? I do not believe so.

dennisV

I dont run ceramic. It's cheaper to replace the bearing by normal ones instead of running ceramic. It doesnt make you faster.

Buckaroo

iTrader: (3)

I had the very same problem. No matter how tight I got it, every second or third run a screw would back out and things would begin to wobble.

Replace the crap stock hardware with these, tighten correctly, and it'll never come out unless you want it to again. There is plenty of room for the cap heads, and you can use a better tool to get more purchase on the head and be able to torque it properly without fear of stripping it out. If you do manage to strip it out or break off your tool, vice grips can still grab the head and you can get it out.

Bearings are like bodies and tires: CONSUMABLE high wear parts that need minor maintenance and seasonal replacement.

I use ceramic diff and thrust balls because of the high compression and the fact that the ceramic ball won't pit or flat spot if something goes wrong. They'll also run smoother with less lube, too, so as more lube gets flung from the diff, it'll still be smoother than old metal balls.

Everything else is $1 Avid brand bearings. Clean 'em and oil 'em once in a while and they'll last for quite some time. If one goes bad or gets destroyed by a bad crash, I'm out $1 (can't say that about a ceramic). For the price of ceramics, you can get 8-10 seasons (2 seasons a year outdoor and indoor) worth of Avid bearings. By that time there's a new car on the street or enough is worn out on the car that it needs replaced anyway.

olly986

These are 10mm long, the original are 8mm, I guess they fit?

I looked into the option to pass a long screw/bolt through the shaft but it is not hollow and threaded all the way, shame, because this could be a good option to lock with a nylock nut on one side.

Maybe AE could look into this option. Rick what are your thoughts on this?

Buckaroo

iTrader: (3)

Yes, they fit. The extra 2mm gives more support to the shaft as well. They also offer 8mm if you want to go that way. Either way, get rid of those button head failures waiting to happen.

The best option would be a bolt on one side, and a headless set screw just long enough to reach through and support on the bulkhead hole on the other side, thus preventing pincing of the bulkhead and causing tweak, but I have yet to find a 2.5mm set screw long enough.