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Old 05-08-2002, 10:46 PM   #646
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Fred should know,...but to be safe, I would double check the front belt to make sure it is not too tight or loose.
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Old 05-08-2002, 11:23 PM   #647
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Glad to see you in this forum Martin.
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Old 05-09-2002, 12:32 AM   #648
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Thanks a lot for the info on the belt Guys.
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Old 05-09-2002, 02:03 AM   #649
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I have heard that the optional aluminium diff pulleys make the drive train much smoother than with the stock plastic diff pulleys. Does it really improve the performance? I do understand that aluminium adds rotational mass... how about using it together with the delrin outdrives? Any experience or comments?
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Old 05-09-2002, 05:58 AM   #650
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... and what about delrin pulleys? Anyone used them before?
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Old 05-09-2002, 07:27 AM   #651
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Quote:
Originally posted by Kenneth Tan
I have heard that the optional aluminium diff pulleys make the drive train much smoother than with the stock plastic diff pulleys. Does it really improve the performance? I do understand that aluminium adds rotational mass... how about using it together with the delrin outdrives? Any experience or comments?
The aluminum pullies give your drivetrain a nicer sound, but they're one of those aluminum parts which you probably won't feel any speed difference.
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Old 05-09-2002, 08:51 AM   #652
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Super38 : Thanks ... who are you

I agree that the aluminum pullies won't give you any more speed. I like them because they likely last longer and thus potentially reduce belt slippage over time. But the are expensive.

So how do you guys think the Tamiya boys will do at the worlds!
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Old 05-09-2002, 09:02 AM   #653
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Well Martin, for the moment...Tamiya BOY, not boys..., if you see the entry list, only Surikarn make his apply...Miura,Maezumi and all the TRF crew arent in...and even no Dave Jun and J Jacobson..., so...letīs be confidents in Surikarn...i think that he is going to make a top 5
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Old 05-09-2002, 09:08 AM   #654
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Go Surikarn! I think he will make the "A"
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Old 05-09-2002, 09:19 AM   #655
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Yeah!! after the deostration on the warm up race, iīm sure that he is going to make the A!
Go Tamiya! go TRF!
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Old 05-09-2002, 10:39 PM   #656
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mcrisp,
Im the guy who works at advance and recently hit you at champs
last wed . Sorry bout that.
Anyway youll like rctech alot, I think its the most active forum regarding rc.Been posting here even before they were called rctech.
see you next time at the track, btw can you drive my car and tell me what you think

Last edited by Super38; 05-09-2002 at 10:42 PM.
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Old 05-10-2002, 09:35 AM   #657
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Hey Super38...

cya at the track! I would be happy to drive your car!

cya.
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Old 05-10-2002, 10:52 AM   #658
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mcrisp, I'd like to ask a question with regard to the Roll Axis: Is there any general rule how the roll axis should lie in a touring car? I am interested in 4WD setups for a start.

Currently on my Tamiya TA04 I set the roll axis to be as close to horizontal to the car's centre line (CG is mainly there) as possible. My theory is that this way, if the front and rear rolls more or less equally, the front and rear tires will be loaded similarly, unlike a case say, a very much higher roll centre in the rear will not roll as much as the front, so the rear will tend to eat up more load and the front will not be sufficient enough to roll. I have tested it at the track, works reasonably well....

Previous settings included a low roll centre in the front, and a higher roll centre in the rear. But I find if the car is set as such, the rear tires tend to overheat towards about 4 minutes into a race. Car also very easy to drive, pivots on the front differential.

An early setting I've played with is a roll centre slightly higher in the front. This gives a more agressive turn in, but tends to understeer out of the corner. So I've went back to a RC in the front which gives me consistent traction through a turn.

I would appreciate comments on above!

Finally, a question about Dual One Ways. I read up a few websites with regard to 1:1 scale cars, it seems that the front rc is always located lower than the rear. This is *supposedly* because they do not want the car to understeer out of a corner. (Disclaimer: I don't even have a driving license, and I don't really keep up with 1:1 scale stuff!! I LOVE EVO 3 heheh) I have seen like say MR4TC, TRF414M, if the car runs a dual one way setup, the front R/C is placed higher in the front. Is there any reason why?

My theory is that with a one way the turn in will be like a RWD car, very excellent since there is no off power fighting of the front differential as in a full time 4WD vehicle. But if the front of the car rolls too much it may take some time for it to recover, so having a R/C located higher, the roll resistance is greater, thus the car is able to still turn very well and yet be able to recover quick, and due to the understeer able to lay down the power without the tail coming about.

Do let me know yours thoughts. Newbie here, not even a year old into r/c

Regards,
Alvin
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Old 05-10-2002, 10:06 PM   #659
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Quote:
Originally posted by tiggersz
The Front belt is the same as the 04 it says it on the package and the rear is different.. I received that info from Tamiya America. I also tried it on my car and the front does fit. The rear doesnt.



JC

They are totaly different. TA04 Low Friction Belt has 1 more tooth with part# 56343 (if not mistaken) and it will become lose when you put it in TRF414M. The TRF belt has a TRF word printed on it.

Yes they say it will fit (on their tags), but in reality, they don't. Later TRF414M kit comes with TA04 belt as well as the TRF414M2 and they are all lose when installed.

By they way TRF414M2 DOES NOT comes with +0.5 Suspension Block but they have more durable ball ends (black color).
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Old 05-11-2002, 07:05 AM   #660
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Is there anyone here how could get me an original 414M? I have heard that some stores in Japan still have them, so I guess anyone, in Japan is a real help.
I want the original as I don't really like the blue parts.
Want one as a back up car!
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