Is it the front one way or ESC?

[Revival]

Hi everyone

I have been to 2 local tracks with my TB-02 using the front one way diff. On high traction tracks, it works very well....however at concrete carpark tracks that is done up by afew good friends, the rear end of the car is slipping and sliding during turns especially during speed reduction or brake tapping.

Some of my friends are commenting that the one way is not suitable for low traction track....while some are disputing that its my ESC....what do you guys think?

Car setup

Front camber: -1.5

Front toe: +2

Rear camber: -2

Rear toe: -2.5

Ride Height: 5mm

Suspension: TRF Dampers with 500 oil weight, Yellow stabliser

Drive Shaft: Universal

Tires: 24mm Middle narrow reinforced B rating with soft inserts

Wheel offset: +2 Front and rear

Motor setup

ESC: LRP Runner, L Throttle set at 20% limit for brakes

Motor: Tamiya Type R 23T

Power: GP 3300 Nimh

Pinion: 23

Spur: 55

[Guest Carsnboats]

Hi,

I cannot comment on your setup as I am an ex buggy racer and haven't got round to racing my touring cars yet!

However the purpose of the one way was to give maximum speed and acceleration in a straight line and then when you slow for corners the front wheels re-engage to give 4wd traction through bends. It works like an over-run clutch. It certainly worked well in the CATs when they first appeared.

I would question the tyres you use as I experienced a similar problem with my tyres and I haven't got a one way fitted.

Clive[]

[nickc]

I would say its the One-Way. A one-way allows all for tyres to accelerate, but only the rear tyres to brake. So when you brake the rear tyres may be locking up causing your car to slide. Try the car without the one-way

[Revival]

Thanks for the reply guys.......the only problem is that it only does this on concrete surface.....I get this feeling that its that the one-way is not too good on low traction surface......

[Jimmy_GT-R]

One Way unit for sure. As said above, with the one way you get more corner grip but tracks with not a lot of grip the cars rear end will break away due to only the rear wheels braking. One way for high grip tracks only, and are also good on high speed tracks(not alot of braking), there uselss on low grip and slow technical tracks. I personally hate them, I raced the TA03 series for 4 years and used a one way unit once, but never again. I just used the gear diff and packed it with thick grease, this gave great grip but with 4 wheel braking. Basically just change between the one way an the gear diff depending on the tracks. Easy and quick job on a TB01/TB02 cars about a 3 minute job.

Thanks

James

[HunterZero]

Don't forget when braking, the weight of the car transfers towards the front wheels. This reduces the effective available grip at the rear, and since your front wheels aren't being used for braking, it's likely to cause the bank end to 'lose it' if you exceed the grip available by braking too hard.

If you take out the one way, the back end won't be so twitchy under braking, but you will lose a bit of cornering ability especially in the initial turn-in since the front end is now being used for braking as well as turning on the turn-in. The car may tend to understeer a little under braking.

Choice of body may help - Are you running with a rear wing?

- James

[stulec52]

quote:I have been to 2 local tracks with my TB-02 using the front one way diff

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OK, so first things first.

You are using either a 1 Way, or a Differential. there is no such thing as a 1 way diff.

Second.

if grip is low, don't use the 1 way unless the track is so open that you do not need to brake.

So, stick a diff in the front for this particular track, then work on the rest of the chassis set up.

[SJoerD]

The TB-02 comes with 2 ball diffs from stock, so I suppose you still have a spare ball diff now. []

I prefer a diff up front over a one way unit in most situations, as you get only 2wd during cornering with the one-way, at the moment you need the 4wd most. Also having the brakes on the rear axle only is pretty annoying.

I had a one way in my TA03F-S and took it out, as with a ball diff the car was a lot better controlable. Also it had all the weigth up front, which makes braking even harder is only done on the rear... I figured that with a weigth balance of 58:42 the one way would not be very suitable for the cars 'character'...

But on high speed, high grip track, then yes, you could try a one-way to see if that's a better option.