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Old 09-18-2002, 08:38 PM   #1981
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Thanks for the photos Simon. I'm having a good look at them now.

The avatar was taken at Port Rd. I don't have any from Mt Vic, although I bumped into someone the other day who has

Come to think of it, Masami's front ballcups look like they may be the standard ones filed down, when I first saw them I thought they might be moulded like that. He has taken a lot off them though.


WYD, by using the ballstuds you run longer camber/top links. I read somewhere that longer camber links is supposed to give you more mid-corner grip.
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Old 09-18-2002, 10:18 PM   #1982
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Hey guys.......thought you might like to know this.

I often help out at a LHS and do the ordering. I also own two Yoks.

Seems Tower, HOrizon, and HRP are discontinuing lots of the MR4's parts and or kits. Some are no longer carried due to the these above mentioned companies and some are no longer supplied by YOK>

Not a good sign in my book.
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Old 09-19-2002, 12:58 AM   #1983
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Japan Nats this weekend. I think we can expect something new from Yokomo there.
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Old 09-19-2002, 01:44 AM   #1984
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Quote:
Originally posted by moonman
Japan Nats this weekend. I think we can expect something new from Yokomo there.
Anyone know of a website doing updates from that race?
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Old 09-19-2002, 07:45 PM   #1985
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Quote:
Originally posted by MarkA


Is it an all-new package (SP2???) or newer parts thrown in the existing SP boxes as an update on the fly?

Hmmm, that could explain the lack of SP kits at most places in the US if they're re-packaging them for a quick update before they come out with the all-new car.
The kits are still the same, just have the newer moulded parts in them.
Belt guide bearings are bigger now too, about the same as the PRO ones. The front belt on the car was real loose, unlike my SP conversion which was fairly tight.
If you look at the second photo I posted on the other page, the SP front tower is now moulded with a lug and hole to accept that extra body post.
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Old 09-19-2002, 11:03 PM   #1986
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Servo Recommendations

Hi YOK DRIVERS,

I need some suggestions. I have been racing for a year and I am finding that I can't keep the car going straight. (NOT ME I SWEAR)The centering is always moving around. I am using a Futaba 3003 and think it is the problem. I set the car to track straight and it changes during the race and I have to reset it again prior to the next heat. My questions:

1. How much play should there be in the steering linkage. I find using an Integy setup station, I have between 0 and 3 degrees of toe-in moving the steering linkage manually. Should it have that much play?

2. If the play is not normal could it be the servo saver is out of adjustment?

3. If I replace the servo to get a faster, metal gear and digital servo could that clear up the problem of the centering.

4. What servos do you YOK drivers use? Any that I should NOT use?

Thanks in advance for your input.
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Old 09-19-2002, 11:13 PM   #1987
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First,
Ditch the long silver ballstuds on the servo arm and the one on the bellcrank. They have so much slop from new, it's not funny. Replace them with some of the black ones used elsewhere on the steering.

Use a quality servo. I use a KO PDS2123 Digital. Not cheap but Ultra quick.
I'd recommend Hi speed/Hi torque units from KO or Futaba as I've used them before. As for the other brands, I have no experience with them(others may have and will recommend some to try).

Last edited by Simon K; 09-19-2002 at 11:15 PM.
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Old 09-20-2002, 04:27 PM   #1988
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I use the Airtronics 357 and its a pretty good servo. Its fast strong and relativily light. The speed is .07 @ 6.0V and has about 125 oz of torque. I'd also recommend Futaba servos. The one servo brand that I would not recommend is Hitech. I've owned two and both eventually went bad.
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Old 09-20-2002, 04:45 PM   #1989
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The Futaba 3003 only produces 44.4 oz/in of torque and thatís not enough holding power for any sedan. On top of that, itís a very old-school brushed servo motor setup and when that motor goes south, the whole servo is going to have issues doing anything.

Please donít take this wrong way as Iím not trying offend but the 3003 is a 12 buck servo (http://www2.towerhobbies.com/cgi-bin...1&I=LXH288&P=0) and you wonít see very many competitive racers using $12 servos.
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Old 09-20-2002, 08:49 PM   #1990
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The Futaba 9405 is a good not too expensive servo:
http://www2.towerhobbies.com/cgi-bin...1&I=LXBXA8&P=C

Another good Futaba is the 9402
http://www2.towerhobbies.com/cgi-bin...1&I=LXH305&P=0

Here's the servo I use:
http://www2.towerhobbies.com/cgi-bin...1&I=LXTT12&P=C

Here's a cheaper one that work good also, its a bit slower, than the ones above, but its alot better than what your using now:
http://www2.towerhobbies.com/cgi-bin...1&I=LX0943&P=C
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Old 09-20-2002, 09:15 PM   #1991
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I use the Futaba 9550 the one that Shurikan had in his car that one the Worlds. It is lightweight and narrow. If you use the low profile alum. Yokomo servo mounts it will sitt super low in the chassis and fits absolutely perfect. It is a little pricey but I like the digital servos and would never use a regular one again.
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Old 09-20-2002, 11:23 PM   #1992
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Mark A, WYD, Eric R, Simon K,

Thank you all for the help on the servos. I will get a digital servo but I am not sure if I will spring for the big buck Airtronics. I know a competitive driver would use better equipment and didn't take offense to any of the input. Now I know why I have raced rookie class for a year. But I am having fun.

My driving skills are now at the point I know it is not me but something with my equipment. Three months ago I was not sure what the problem was. Me or the car. Now I know it is the car. The steering is driving me crazy.

I will rebuild the servo saver linkage and replace the long ballstud at the same time.

Cheers,
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Old 09-21-2002, 09:30 PM   #1993
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Just ditch the two long silver ballstuds and that should make a difference initially.
Buying a good servo is an investment, spend the money now and it should last a few years.
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Old 09-22-2002, 12:35 AM   #1994
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Hi guys. Can someone tell me what is the best gear ratio for a 10x2 motor in tc-pro? thanks
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Old 09-22-2002, 10:49 AM   #1995
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I run a 3.9 ratio. 78 spur and 20 pinion(both in 48 pitch)
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