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Old 11-05-2002, 06:50 PM   #4276
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What will be the internal ratio if the 41 tooth pulley is used both front & rear (instead of the normal 42 tooth) ?

Besides the internal ratio, how will it effect the car ?
you won't be able to properly set belt tension with a 41 in the front and the rear.
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Old 11-06-2002, 05:40 PM   #4277
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Default Foam Carpet Extras

After a few years running the opposition camps car (TC-3) I am finally considering going back to Losi (Losi offroader through and through) after much waying up over getting a Factory Team TC3 or graphite XXX-S.

My question is, what extras will I need to buy to run the Car on carpet with Foams ?

I have compiled a list of things that look like they might be required, but I am unsure of the availability of some of them...

1. Matt Francis Low roll centre blocks, are these Trinity or Losi parts ?
2. Offset Rear end - is this available or is it just a prototype ?
3. 6 degree castor blocks - are these still only prototype parts ?
4. Trinity Purple springs - are there others that I will need for tuning
5. Losi Black springs - do these come with the car and what others might I need for tuning (ie colours of next tension up or down)
6. New Rear shock tower. Is this out yet ?
7. 0.080 & 0.076 swaybars - Are these Trinity or Losi bars and are there other sizes that I will need and do they come in a set ?

Please answer these questions or I might just have to buy another Associated
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Old 11-06-2002, 05:55 PM   #4278
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also..........

should I get the front one way to try out, and is this a Losi part ?And, what is a spool ???
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Old 11-06-2002, 07:34 PM   #4279
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I will try.
#1:Trinity aftermarket part, need to buy front and rear sets
#2:Todd Hodge says it will be out in a few weeks
#3:6degree blocks are available right now
#4:Trinity Blue,Yellow Congo springs and also Losi blacks
#5:Car comes with purple front and silver rear, Losi springs go from black(firmest),purple,green,blue,etc. I think the rest are too soft for carpet
#6:I bet it will be available when the new rear end is released or you can get some PRP towers (sweet!!) http://home.attbi.com/~teamprp/
#7:Losi makes a swaybar set that comes with .080,.070,.060,and .050 and all the necessary hardware.You will need a set for the front and a set for the rear as they have different angles and widths.
Losi has the newest factory boys setups for carpet on their website, that would be a great place to start. I dont think the oneway is ran much on carpet but Paul L ran a spool at the Oktoberfast race. A spool is a locked diff, basically you remove the diff balls, place some headercard material the same size as a diff ring beside both rings to take up the space and then tighten it down till it does not give. John Stranahan has a great thread on a spool on Trinity's Tech Talk site.
Hopefully some others can shed some more light for you. This thread has some GREAT info in it if you have the patience to read for hours!!
Good luck in whatever you decide.
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Old 11-06-2002, 08:24 PM   #4280
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losi have just put up a few new comparison pics of the xxx-s gp here.
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Old 11-07-2002, 05:06 AM   #4281
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So ... if I use the 41T pulley (instead of the standard 42T) front & rear, what will be the internal drive ratio of the LOSI XXXS ? Has anyone tried to use 2 smaller pullies before ?

I raced last weekend with an overall gearing ratio of 68/27x1.83 = 4.61 ... do you think it is overgeared ? I need to increase acceleration but I was happy with the top speed ... any suggestions ?
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Old 11-07-2002, 05:44 AM   #4282
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Quote:
Originally posted by senna
So ... if I use the 41T pulley (instead of the standard 42T) front & rear, what will be the internal drive ratio of the LOSI XXXS ? Has anyone tried to use 2 smaller pullies before ?

I raced last weekend with an overall gearing ratio of 68/27x1.83 = 4.61 ... do you think it is overgeared ? I need to increase acceleration but I was happy with the top speed ... any suggestions ?
With one pulley the internal drive ratio is 1.78. I don't know if it changes again with both front and rear but I already told you what problems you run into with two 41 pulley's installed.
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Old 11-07-2002, 05:51 AM   #4283
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With one 41T pulley the drive ratio is 1.78 ... with two pullies I think it will be less ... no? Anyone knows ?

Also ... you said that I will have problems regarding the belt tensioner ... but I can easily drill a hole a bit further down so that I can tighten it more ... no?
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Old 11-07-2002, 05:51 AM   #4284
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Quote:
Originally posted by senna
I raced last weekend with an overall gearing ratio of 68/27x1.83 = 4.61 ... do you think it is overgeared ? I need to increase acceleration but I was happy with the top speed ... any suggestions ?
that sounds awefully low.. which might not only kill acceleration but top speed aswell if it's too much for the motor to push.

the lowest i'd gear a stock motor is ~5.2 to 5.3 (if you're using rollouts that's around 35mm/rev) and that's on a track made for the 1:8th scales.

unless ofcoarse you meant 86 tooth spur? in which case would give you an end ratio of 5.828 which mightn't be as bad..

anyhow.. speak to the local fast guys, they'll be able to help you better with gearing than anyone here.

Last edited by tones; 11-07-2002 at 06:01 AM.
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Old 11-07-2002, 05:54 AM   #4285
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senna- you could, but i can't see any point in doing so.

anyhow if anyhting the losi's ir is already too low.. why set out to make it lower
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Old 11-07-2002, 06:00 AM   #4286
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We use Corally Stock Motors (21 turn) I believe ...

Our track is outdoors (asphalt) and quite big ... do you still think that I have to try to lower the ratio ?
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Old 11-07-2002, 06:04 AM   #4287
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other cars on the same track all have approx. same ratio ...

The guy who is very fast has ...
TC3 ... 60/34x2.5 = 4.41 (overall gear ratio)

Mine on the LOSI is 4.61 ... do you think I am overgearing ?
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Old 11-07-2002, 06:06 AM   #4288
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the reason for using the 41t pullies are the following ...

1. they are approx. 1 grm lighter than than 42t ones
2. the belt will not touch the bottom chassis
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Old 11-07-2002, 06:13 AM   #4289
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Quote:
Originally posted by senna
the reason for using the 41t pullies are the following ...

1. they are approx. 1 grm lighter than than 42t ones
2. the belt will not touch the bottom chassis
the belt shouldnt touch the bottom of the chassis when its loaded up under power.
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Old 11-07-2002, 06:17 AM   #4290
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I noticed that the bottom of the chasis (from the inside) always has a mark of the belt .... i assume that it is touching sometimes.

Having less rotating weight (41T Pulley) should help always, no?
Can I calculate it somehow the ratio with two 41T pullies?

Do you really recommend me to try a gear ratio of approx. 5, if other drivers using other cars have approx. 4.6 overall ratio?
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