ahh..thanks ^^... juz went tampines ther jor... nt bad larhs ^^ hahahas.. also manage to change some of my rusty parts... arent bad ^^

can anyone help me with a slight problem pls?? when my car corner, it stop moving. Only can hear the engine's sound but it wont move. What sud I do?
Btw, what's the damper u guys are talking about in the previous post? Sry I noob...

most likely is your gear. try to check if you gear loose.

hi David, these stocks got ma?
1)Item #15356
So tat we can use back some of the old body cover...


2)Item #15349
3.5:1 gear ratio- Is this nice?


This post has been edited by TamiyaAye: Feb 20 2009, 08:31 AM

i believe 3.5:1 gear is a must have. else u wont have other gear to tune your car. 4:1 is good for "power" but 3.5:1 is a must to achive higher speed.
i'm looking for it too...

15356 is hanging there all the time u did not see it yesterday just right beside the rear bumper u asked me about
as for the gear we will get it by next week

b-mecha u can get it in stargek paya lebar they already have stock for it

small diameter MS PRO cars comes with 3.5:1 gear also. Btw which parts comes with 40mm screws? Thx ^^

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Added on February 20, 2009, 10:52 amUpcoming topic: Explaination (using concept of levers) on tilt cornering and relationship between downthrust and roller height. Stay tuned

This post has been edited by 13lack.12ose: Feb 20 2009, 10:52 AM

Wat u mean of concept of lever? Sorry i stil newbie...

Can i knw anyone here can recomment which rollers are better?

all rollers are good which 1 u want to use and how u use it is the most important

O icic...
If new stock reach pls inform asap....

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Added on February 20, 2009, 8:29 pmWhere r u R3ju7Ce, come we race... Haha...

This post has been edited by TamiyaAye: Feb 20 2009, 08:29 PM

Relationship between Roller Height and Downthrust



Red: Direction of the force applied or Line of Centre of Gravity (CG Line)
Blue: Resistance due to roller contact
Green: Lift/Downnthrust due to roller height

Explanation:
1. The car moves forward, with red denoting the line of centre of gravity (CG line) which the forward moving force acts upon the car. However there will be resistance that prevents the car from moving forward freely. In this case, we are considering the friction due to roller contact on the walls, denoted by blue.

2. Due to the relative position of the roller height and the CG line, there will be a passive lift or downforce acting on the car. If the roller is above the line, there will be lift. If the roller is below the line, there will be downthrust.

The significance is that:
1. The further away the roller is placed from the line of centre of gravity, the less stable and slower will be the car.
2. The higher the roller, the greater passive lift experienced.
3. The lower the roller, the greater the passive downforce experienced (i.e you can increase the downforce on the car without having to increase the front angle)

This is why in my previous post I advocated placing the main rollers as near the CG line as possible, best would be slightly above the CG line so that there will not be energy wasted trying to balance the car from the unneccesary lift or downforce, as well as sideway balance, leading to a faster setting. Second, this will allow for the balancing roller to be placed at the bottom as low as possible for quick recovery during jumps and a faster and more stable tilt cornering.

As usual, do discuss and point out if my concept needs amendments.

This post has been edited by 13lack.12ose: Feb 20 2009, 10:03 PM

Very nice article... 4.5/5 stars.
Thanks...
Besides, tmrw got any1 going to TU ma? I wish can see others beside me... Come race wif me...

@TamiyaAye: Thank you for the rating . The 0.5 that you deducted I suppose is because of my lousy photoshop skills? lol

Anw, rollers with ball bearings are good. The variable would be how high you set the rollers, how wide you set the rollers, how long you set your rollers, how many rollers you intend to use, the angle and the diameter of your rollers. Browse a few pages back you'd be able to find some concepts that were being discussed on these.

u can look for me to get the timer also to see how fast your car or maybe i race u a few round
for box stock current fastest 28.06sec
for modified 24.34sec
to others who are interested to test their timing feel free to look for me
both timing run using energizer alkaline battery only

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Added on February 21, 2009, 1:31 amu also use the fouor 13mm bearings as weight balance for jumps right


This post has been edited by david tamiya: Feb 21 2009, 01:31 AM

Thanks for allowing me to use the timer, i really appreciate it...
Haha... I think i might not be able to break the record of yet... My rollers stil sux...

Anyway, I am going to challenge to be fast as possible.
Any suggestion?
Feel like my car is so heavy ... How to lighten my car weight? Wat is the minimum weight of a car needed in term to be able to run in hyper dash speed to pass the bridge?

Lastly, any1 going to TU ma today and wat time?

This post has been edited by TamiyaAye: Feb 21 2009, 11:24 AM

why so quiet in tu ?? Nobody geh ?

Yameh... I am going there at 3 pm... How bout u? For those who no come mean loser



This post has been edited by TamiyaAye: Feb 21 2009, 02:40 PM

i think its rude to say like this some of the guys in this forum is from singapore what do u aspect for them to come over

Y take it so serious, don be angry guys...so obviosly i am jus joking here...
Sorry if i hv offended any1 here...

David, later borrow me timer ok... C u...

I think roller setting and brakes are more important factors in crossing the bridge than weight.