86LikesHpi Pro 4
04-11-2005, 02:36 PM
Originally posted by Guo Chean
got any difference for this setting is that counter back the steering?
got any difference for this setting is that counter back the steering?
04-11-2005, 02:39 PM
Originally posted by Guo Chean
i using hpi original countersink washer so do i need to tighten it much? bacause that day i read from this forum they say do not tighten too much. so i just leave it free abit.
can you send me your pic how much you tighten it until little bit. thanks
i using hpi original countersink washer so do i need to tighten it much? bacause that day i read from this forum they say do not tighten too much. so i just leave it free abit.
can you send me your pic how much you tighten it until little bit. thanks
04-12-2005, 04:16 AM
Originally posted by dizzy1
hernandez- you are way over geared. I run my V2 8x1 with a 74/19 on a midsize track, 50% technical. I run my V2 9x1 usually 74/20, sometimes 74/21. Your comm probably looks cherry red after one race.
hernandez- you are way over geared. I run my V2 8x1 with a 74/19 on a midsize track, 50% technical. I run my V2 9x1 usually 74/20, sometimes 74/21. Your comm probably looks cherry red after one race.
04-12-2005, 06:28 AM
How is the comm look on your motors? If you comm looks 
then you are overgeared.
then you are overgeared.
04-12-2005, 06:34 AM
Originally posted by dizzy1
How is the comm look on your motors? If you comm looks then you are overgeared.
How is the comm look on your motors? If you comm looks
then you are overgeared.
Although I will take a look at your recommendation. I think I should time it. A lower gearing might be faster in the straight-away but not necessarily faster on overall lap time.
Will try higher gear ratios and will let you know of the result.
BTW, since my motors are x2 and not x1, doesn't that mean that my gear ratio will really be lower than yours?
04-12-2005, 10:07 AM
Here is my Pro 4 so far...
04-12-2005, 12:10 PM
Originally posted by TFR
Here is my Pro 4 so far...
Here is my Pro 4 so far...
04-12-2005, 07:14 PM
Tech Fanatic
iTrader: (1)
Hernandez...A couple of points....
1/If you can get the timing on your v2 motors checked...I have three and they were all out!!!instead of 18degrees they were about 24.This could be one of your problems
2/You dont tell us if you are using rubbers or foams...this can make a huge difference,most rubbers are 63mm...given that I run my 9x1 at 23.82 rollout...my 8x1 at 22.74
You can get a rollout chart here
www.arroyoc.com
If you are using foams you have to factor your tyre diameter in.
1/If you can get the timing on your v2 motors checked...I have three and they were all out!!!instead of 18degrees they were about 24.This could be one of your problems
2/You dont tell us if you are using rubbers or foams...this can make a huge difference,most rubbers are 63mm...given that I run my 9x1 at 23.82 rollout...my 8x1 at 22.74
You can get a rollout chart here
www.arroyoc.com
If you are using foams you have to factor your tyre diameter in.
04-12-2005, 07:19 PM
Tech Fanatic
iTrader: (1)
Sorry I should have explained...
63mm tyre/75 spur/21pinion =22.74
63mm tyre/75 spur/20 pinion =21.65
63mm tyre/75 spur/21pinion =22.74
63mm tyre/75 spur/20 pinion =21.65
04-12-2005, 07:23 PM
Tech Fanatic
iTrader: (1)
04-12-2005, 07:29 PM
Hey my pro4 is using a fantom stock motor... I have a 48p 70t spur gear and a 28t pinion... My final gear ratio is about 6.02. Should i gear down?
04-12-2005, 08:03 PM
Originally posted by Barger
Hernandez...A couple of points....
1/If you can get the timing on your v2 motors checked...I have three and they were all out!!!instead of 18degrees they were about 24.This could be one of your problems
2/You dont tell us if you are using rubbers or foams...this can make a huge difference,most rubbers are 63mm...given that I run my 9x1 at 23.82 rollout...my 8x1 at 22.74
You can get a rollout chart here
www.arroyoc.com
If you are using foams you have to factor your tyre diameter in.
Hernandez...A couple of points....
1/If you can get the timing on your v2 motors checked...I have three and they were all out!!!instead of 18degrees they were about 24.This could be one of your problems
2/You dont tell us if you are using rubbers or foams...this can make a huge difference,most rubbers are 63mm...given that I run my 9x1 at 23.82 rollout...my 8x1 at 22.74
You can get a rollout chart here
www.arroyoc.com
If you are using foams you have to factor your tyre diameter in.
04-12-2005, 08:05 PM
Originally posted by jihernandez
we use rubber tires
we use rubber tires
hope you can further assist based on these additional info
04-12-2005, 09:38 PM
Tech Fanatic
iTrader: (1)
Gearing....On rubber tyres on one of the tracks I use( similar to what you have) I would go down 2 pinion sizes ...22...to 20 .for your 9x2. I dont use a 10 turn but would suggest you try the same with that.Check out the gear chart....I use it heaps.
04-12-2005, 09:44 PM
Tech Fanatic
iTrader: (1)
Hernandez...Get someone who knows about motors to check your timing.My motors are 2nd to last line on the RIGHT hand side.The end bell screw on the positive side is in line with the2nd to last line on the can.Hope this helps.