ice98

Hi guys,need your expert opinion.I just got r40, the thing is that the car would spin or turn right or left when i hard brake. is this normal?was told by the shop owner that its normal for this car.is it true or some adjustment needed. thanks

fastharry™

iTrader: (4)

are you running a one way?...if so, its normal......

if not, the car is tweaked, its got a bad bearing, one of the cvd's is broken, one wheel hex is stripped,.....any of the above.....

ice98

sorry ,what is meant by running one way? will check the condition of the items mentioned. thanks

fastharry™

iTrader: (4)

what type of diff is in the front?...

SasonRC

ICE98 if the front diff looks like this then it is a one way that will cause you to spin out of control when hard braking. Soften the brake a little.

Also, check to make sure your pullies in the front are intact, and that your ride height is not too high or else the car will handle poorly.

ice98

thanks guys for the tips and advise.will try to set up on the track.i'm so used to my old tamiya car handling need to adapt to hpi now.

Rapid Roy

So do you have a oneway front diff? Which version of the R40 did you get? Also give us information on how you are setting up your car. That way we can help better.

Welcome to the world of R40

hooked_on

iTrader: (1)

No sorry...maybe as chassis drags in the rear?

ice98

yes i have one way front diff. So dismantle it? don't know which version ,should be 2003 definately not hara edition.is there anything else I should take note of?

fastharry™

iTrader: (4)

exactly....and you wont be able to get the allan wrench in there in about 2 races....

fastharry™

iTrader: (4)

you have an asian edition kit...they came with the one way...

I would try a front diff, or a solid axle....they will both give you front end braking, and will stabilize the car under braking...

ice98

do you guys use original hpi belt or aftermarket belting from hardware belt shop cause mine easily shows sign of tear after 1 track practice maybe cause the track not maintained from fallen dead leaves.

fastharry™

iTrader: (4)

you answered your own question....I've raced my car for 4 years.....haven't replaced 5 belts......any of these pro style cars are designed for maintained tracks...

Rapid Roy

I haven't had any belt problems either. Make sure your gears are cleaned out throughly. I use a sharp metal probe to clean everything out in the low spots. The crud that gets in there is just as black as the gear.

CraigM

iTrader: (34)

I broke a front belt, i think a rock got in there, and i stripped a rear belt which wore the pulley down. Otherwise I had no belt woes either