apai , that looks awesome and crazy at the same time... looks like road to genting highland...
btw , i got a letter from genting stating that i got upgrade card to green card and one complimentary standard room for one night stay at first world hotel but have to go before 30th july 2009.
haha... been using my genting card when pouring petrol at BHP.

looks like track not necessary to use brake... apai, anyway to make a smaller version of it, maybe reduce something?

To : Jay , Matt, Teoh , dan lain lain

i was thinking maybe dismantle the current layout and build back the layout we had for sunday's race and then try to beat eelen's 19s record.

what do you think? i wish i was there now but i got class today so i cant come neither 2moro im able to come to help do the track.

I THOUGHT YOU KEEP IT PERSONALLY. WHEN DID YOU LAST SEE IT? I WOULD SAY WAS ON RACE DAY.

[quote=h1dz1r,Jun 12 2009, 11:15 AM]
hi everybody,

i've a question here, hopefully somebody could enlighten me with an answer or solution or justification to the Q.

whats the differences or advantages or disadvantages by using smaller diameter roller in front/rear of the chassis compared to the bigger diameter roller in front/rear of the chassis?

what i've done past years and current practise is just installed any roller despite of the sizes without even thinking of the advantages. i've no idea at all why there are various sizes for the rollers.

thank you in advance.


hi abang , it was very nice to see you and your daughter enjoying yourself at the race...it's good that your daughter is interested in mini 4wd ( i mean putting the car in the track ) well , it's at least something to think bout...we need more girl racers but where to find?

anyway to answer your question.


Standard setting. Front and rear rollers have the same diameter. This makes your car easier to run straight since rollers are lined parallel when they contact a wall. Also minimizes power loss.

Bigger in front: Front roller diameter is bigger than that of rear roller. Suitable for courses with many corners since this pushes your car towards inside of the course when rollers contact a wall.
Smaller in front: Rear roller diameter is bigger than that of front roller. This makes your car run along with a wall. Gives stability during cornering, but creates power loss.

Remember, Double Ball Race Rollers are counted as one piece during official Tamiya races. They are best located at the front rather than the rear. However, if you have cash to spend you can use them in the rear as well.

have you check your store room?> maybe accidently left it there.

btw, how much does one cost?

i have the bigger sides upwards and downwards meaning the smaller sides are in the middle.. yes u can put 2 on each side..thats wht ive done...

2nd question, i cant answer that.. its all up 2 you 2 use wht diameter of ball bearing.

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Added on June 12, 2009, 4:12 pm[quote=david tamiya,Jun 12 2009, 04:01 PM]
any brand as long as its not too think and not too thin
i use microlon

where can i get microlon?

This post has been edited by gabz.85: Jun 12 2009, 04:12 PM

anything new spare part came in yet?

torque tuned pro is RM 17...

single shaft torque tuned not available i think.... only available is sprint dash : RM 23

This post has been edited by gabz.85: Jun 13 2009, 09:51 AM

i feel there's just too much of a hassle to cut the chassis..leaving the way it is and finding another solution of lightening would be better.

so you think..well , fortunately it's back and great as ever!!!! hahaha..MARA EMPEROR!!!!

looking at this photo makes me want to laugh.. chef wak...posing gile dengan kita punya rockstar , eric susu , wankoko, sngsngz

went to faiz92's flickr site : http://www.flickr.com/photos/faiz92

jay, got pic or not?

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Added on June 15, 2009, 10:26 amyour bday????

This post has been edited by gabz.85: Jun 15 2009, 10:26 AM

so sorry to hear bout your grandma.. my condolences to you and your family.

btw. happy birthday david.

ai say..why jay? no show face?

went to T.U at 1pm to test layout


used old GP 2300 batteries..fast and stable

used Sony 2300 batteries...very fast...at jumps quite good..2nd lane changer ...car overturns..

dont know how to time w/o timer.. anyone going 2nite or 2moro nite... im confirmed going 2moro.

simple but nice....anyone going 2nite?

hey ben , f.y.i i had that setting long time ago..ask rexo..he knows. you must hv copied from me... if you enlargen the picture properly , you'll see that i have 4 double roller balls ( top and bottom)... and i just added a mass damper at the back this afternoon.

faiz, i actually have top and bottom double ball rollers... 4 in front , that's why low... only when race, i'll remove the extra two and increase the height of screw.

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Added on June 17, 2009, 1:14 ammaybe we had the same thought but i had that setting since day 1 when buying rest of the parts...neway whatever la... about the tamiya rules , i of coz know bout it , will only remove the extra two when race comes.

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Added on June 17, 2009, 1:26 amso far playing on the current layout , front and back break have helped tremendously i believed... front helps from the second jump lane to the 2nd lane change...it breaks quite well, i uploaded the video...

http://www.youtube.com/watch?v=nHnV3eoT_6M

This post has been edited by gabz.85: Jun 17 2009, 01:49 AM