NT

iTrader: (21)

You're right - the 60Ds don't turn in very well at all - BUT with the increase in top speed - it comes down to the kind of track your running - most tracks around this way benefit from the extra top speed compared to turn in.

X Patterns are tough to get hold of (they are no longer manufactured!) Pit Shimizu have finished production too - so other tires will be needed - but none of us have really experimented with them to any great degree yet

sportssedanman

iTrader: (11)

Oh, I see. That makes sense. I was amazed to find how much difference in feel there was as I changed tyres. I am used to the worn HPIs, and when I put the 60Ds on, I kept running wide on corners. Then I went to some newer HPIs on the front and started rolling the car (with the extra grip) and suffereing from power oversteer as he rears were pretty worn out. Interesting.

I was able to do 5.25 laps in 2:30 with 60Ds on the front and 5.75 laps with used HPIs on the front. I guess I need to practice more with the 60Ds.

evo1

iTrader: (6)

I think the ride slick's work pretty well on our track. On race day the track will be pretty clean ( first heat's are usually a bit dusty of line) as the day go's on the grip comes up , so the 60Ds might be alright .

sportssedanman

iTrader: (11)

Peter, are there any things I should do as I assemble the TA05-R that are not included in the instructions. For example pull the seals off the bearings, wash out the grease and oil them, or use different lubricant on the diffs, or use different shock oil?

Roughly what pinion should I use with a Novak 13.5T brushless running in Stock (I know they are not legal - yet)

David

Andoni

Hi David just wondering if you bought the tao5r on the net or did you buy it from Tates in Shannon ave?
Currently building a LST2 for the off-road track up there, and am now thinking about doing some on-road racing myself.

peter p

iTrader: (2)

Hi it is better to get it off the net .David you can still race with a 13.5,as for gearing start at around 5.00 this is with the sinter rotor not the bonded rotor.As for the 05 i would pull the seals off the bearing and use a very light oil,the diff grease that comes with the kit is fine and the shock oil is close to what is good for the track.

Andoni

Hi Peter, I've been looking but can't find the ta05r chassis online, only the ta05. Do you have an idea of what $$ I'd be looking at? I've just gone and bought a Spectrum radio so I won't be purchasing for the next couple of weeks.

peter p

iTrader: (2)

if you look on ebay you will find one, i just had alook and there is a 05 with a lot of hop ups and 3 bodys,you can all so look at the for sale threads on this site, alot of good deals

LOSI123

iTrader: (63)

speedtech rc has them in stock atm, (TA-05R)

http://www.speedtechrc.com/store/ebp...?catmainid=120


Ive heard they are a reliable shop....

Andoni

Thanks Peter but I'd like to purchase new preferably, that way I'm able to learn about the construction of the car through building it (plus I'd have all relevant manuals).

Thanks for the link Losi123.

sportssedanman

iTrader: (11)

Andoni, I got my TA05-R from dinball on ebay. It must have been the only one they had because they no longer list it, either on dinball or rcmart.com. It hasn't actually arrived yet. Still waiting excitedly.

Thanks for the gearing advice Peter. I am not sure whether the motor that is in the mail to me is a sintered or bonded rotor. No wait.... I just checked, it is a bonded rotor. I bought it as a brushless system with a Novak XBR speed control. I can get a sintered rotor upgrade for US$46.

Why is it that a sintered rotor can take different gearing to a bonded rotor and how far can I go with the gearing with a bonded rotor?

So for an FDR (final drive ratio) of 5.0 I would need a 47T pinion to go with the 105T spur.

Thanks

sportssedanman

iTrader: (11)

I have found part of the answer to my question.

A sintered rotor will operate at a higher temperature than a bonded rotor. Since gearing affects the motor temperature, you can run a lower gearing number with a sintered rotor and get more top speed.

Sintered rotors, judging by the forum posts, seem to be okay up to 160F (71C). How hot can a bonded rotor run?

I also noticed that a 13.5 sintered rotor brushless Novak runs at 3300 rpm/volt (23760 at 7.2V) and a recommended FDR of 4.5 giving wheel revs of 23760 / 4.5 = 5280. So top speed is:

5280 x 60 x tyre diam (mm)/1000000 x 3.14 km/h
with 64mm tyre diam, top speed is:
= 64 km/h

A 3.5T Novak sintered rotor runs at 10500 rpm/volt (75600 rpm at 7.2V) and a recommended FKR of 10.5 giving wheel revs of 7200.

Top speed = 64/5280 x 7200 = 87km/h

Does this all look right? I thought the 3.5T motor might be faster, and 75600rpm is RIDICULOUSLY high!! Can motors really run that fast?

I guess with an 11.1V LiPo cell top speed would go to 134km/h as long as the motor and ESC did not overheat.

Comments?

evo1

iTrader: (6)

G'day David .

Don't be to concerned with top speed , it's more on how to put that power to the ground & getting the car to hook up & pull out of the corner's

NT

iTrader: (21)

Don't waste your time hunting for an 05 from these guys....

Email RC CHAMP via [email protected] and do it that way. They have a website, but its mostly in Japanese, so kinda pointless in looking at

Pretty much all of the Bendigo club get our gear thru him He's in Hong Kong

I know a standard TA05 currently sells for 9900yen (About $100AUS + post)

That's where i'd go

sportssedanman

iTrader: (11)

Great tip NT. Thanks.