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Old 05-07-2007, 07:08 AM   #2341
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Quote:
Originally Posted by fatboy
I got a big problem with the traction roll whenever I race in a tight track.
Just wonder how would it be solved as i had tried too many ways in the setting.

Please advise.
Hi:

Can you explain what is the "traction roll"?

regards

Eduardo
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Old 05-07-2007, 07:19 AM   #2342
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Hi guys;

Yesterday I was setting up my car to use smaller tires (from 59mm to 55mm) I was trying to setup up the car to have 8 mm of ride height. However, the rear shock aren't long enough to have the necessary drop. (I couldn't have chassi upward travel). Do I need to buy long shock rods?

regards

Eduardo
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Old 05-07-2007, 07:33 AM   #2343
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Quote:
Originally Posted by eduardo_garcia
Hi:

Can you explain what is the "traction roll"?

regards

Eduardo
When the grip level on the track increases to the point where it causes an abrupt weight transfer to one wheel when turning. A more precise explanation would be a imbalance in slip angles. Example the rear tires of the car will begin to release slide out in a right hand corner and the weight will transfer to the left front and cause it to "dig in" and flip the car.
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Old 05-07-2007, 07:55 AM   #2344
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Quote:
Originally Posted by eduardo_garcia
Hi guys;

Yesterday I was setting up my car to use smaller tires (from 59mm to 55mm) I was trying to setup up the car to have 8 mm of ride height. However, the rear shock aren't long enough to have the necessary drop. (I couldn't have chassi upward travel). Do I need to buy long shock rods?

regards

Eduardo
Although I'm curious why you'd want to run small ires with such a large ride height, I'd suggest using longer ball ends. You could try using the ball ends from the steering rods. It would save a lot of work installing longer rods.
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Old 05-07-2007, 08:34 AM   #2345
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Quote:
Originally Posted by Julius
Although I'm curious why you'd want to run small ires with such a large ride height, I'd suggest using longer ball ends. You could try using the ball ends from the steering rods. It would save a lot of work installing longer rods.
Hi Julius.... Thanks for the answer...
The reason is that my local track is very bumpy and it is not in the "same level". You probaly know the track, it is the 2004 world championship track. I found out I can't handle my car well with a hide height smaller than 6mm ( the chassi hits the ground on the last turn) . So, the ideia is to keep the car above 6mm until the tire reaches 55mm. I'm using those small tires for pratice purpose only, not race.
Is anything wrong on this setup?

best regards

Eduardo
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Old 05-07-2007, 08:59 AM   #2346
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Quote:
Originally Posted by eduardo_garcia
Hi Julius.... Thanks for the answer...
The reason is that my local track is very bumpy and it is not in the "same level". You probaly know the track, it is the 2004 world championship track. I found out I can't handle my car well with a hide height smaller than 6mm ( the chassi hits the ground on the last turn) . So, the ideia is to keep the car above 6mm until the tire reaches 55mm. I'm using those small tires for pratice purpose only, not race.
Is anything wrong on this setup?

best regards

Eduardo
No nothing wrong just curious

Did you ever try heavier damping (thicker oil or less holes) to make the bumps better?
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Old 05-07-2007, 10:03 AM   #2347
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Default Centax 3 Clutch

Hi Guys

I recently came across some information regarding the fly weights (3 black shoes at bottom of clutch) for the Centax 3 clutch.

By drilling holes in them and using the small set screws you will be able to weight the fly weights.

I have a question regarding this:

What is the benefit of using weighted fly weights? And when will you use it - is it track dependant?

Regards

Acid
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Old 05-07-2007, 10:43 AM   #2348
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Quote:
Originally Posted by Julius
No nothing wrong just curious

Did you ever try heavier damping (thicker oil or less holes) to make the bumps better?
Oh yes.. I tried... To be very honest with you, I had a very hard time to setup the 720 for that particular track. To get a more predictable car, made the following modifications on the standard setup:

1- shocks with 2 holes (35w)
2- solid front axe (to avoid the traction rolling) I still need to test the front diff with 100k
3- blue springs on front, red on the back
4- 2.3mm rear roll bar
5- adjustable arkerman with the inner insert (long position)
6- caster with 1mm on the front
7- the rest of the itens on the standard setup

With this setup, I have a very easy to drive car, but with a little understeer on the corner entry. The front tire wear incrased substantialy, but the car is very predictable and fast enough for me
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Old 05-07-2007, 10:54 AM   #2349
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When running the long front ackerman with the front way has anyone had a problem with the ball joints hitting the pulley on the one way?

Thanks
Gael
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Old 05-07-2007, 11:56 AM   #2350
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Quote:
Originally Posted by Killa G
When running the long front ackerman with the front way has anyone had a problem with the ball joints hitting the pulley on the one way?

Thanks
Gael
No. I haven't.. I'm using the ajustable long arckerman, not sure if it is different. I'm also using the 18T front belt tensioner (with the 19T), so it may give me an extra clearence..

regards

Eduardo
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Old 05-08-2007, 08:41 AM   #2351
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Jari Taskilla TQ, HOA season opener with his 720.

Finals were decided by quals due to heavy rain. 3 720's in the top 5.
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Old 05-08-2007, 07:51 PM   #2352
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julius recent trip to manila posted on the serpent website

http://www.serpent.com/news/12244/In...in-Manila.html
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Old 05-09-2007, 07:30 PM   #2353
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Thumbs up 3rd ONEWAY IS A MUST

Tried it ,an also the overdrive, wow what a difference the car was a dream to drive an had brakes also running a front diff, hey guys if you dont hve these hopups make sure you get them. .
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Old 05-11-2007, 04:18 AM   #2354
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Hi guys,

This is my first message on R/C Tech boards.

My quesstion is I am planning to buy a Serpent 720 07 edition for races. But first of all I want to know the advantages and disadvantages of Serpent 720 07 to compare with Mugen MTX4-R, Kyosho V-One RRR WC edition and XRAY NT1?

Thanks.
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Old 05-11-2007, 05:08 AM   #2355
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Go for the 720, it's got the best manual....

As you are in the Serpent thread, everybody would recommend you to buy the 720...

It is hard to compare the cars, because all 4 of them are good cars, I would even ad a fifth....the Team Magic G4.....

I would go with the car, you can afford, and for which your LHS gives you support.....
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