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Old 12-02-2010, 07:19 AM   #1486
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How do i read gear ratio?As in is the gear ratio higher or lower better?
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Old 12-02-2010, 10:38 AM   #1487
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How do i read gear ratio?As in is the gear ratio higher or lower better?
Higher means more acceleration and lower means higher top speed. Basically it means if you have a final drive ratio of 7 it means that for every 7 turns of the motor you get one turn of the wheels. As is my understanding. It depends on your motor how high or low you can go with your ratios.
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Old 12-02-2010, 07:42 PM   #1488
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Higher means more acceleration and lower means higher top speed. Basically it means if you have a final drive ratio of 7 it means that for every 7 turns of the motor you get one turn of the wheels. As is my understanding. It depends on your motor how high or low you can go with your ratios.
Base on what you say,it means that if i am using a 70T spur gear,then i should use a 25 T pinion?Since the gear ratio is 5.75:1
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Old 12-02-2010, 10:20 PM   #1489
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Base on what you say,it means that if i am using a 70T spur gear,then i should use a 25 T pinion?Since the gear ratio is 5.75:1
When you say gear ratio, do you mean the internal gear ratio or final drive ratio?

It comes down to what you want your car to do, do you prefer acceleration or top end speed? There are limits to how high or low you can go depending on your motor. I am unsure of if it makes a big difference changing the gear ratios at the pinion, center or diff pulleys. I like mine around 8 or 9 as i like high acceleration, suits my track and style.

basically to calculate your FDR it works like this;

Spur teeth divided by pinion teeth = Primary Drive ratio (A)
Diff pulley divided by center pulley = Internal Gear Ratio (B)
the A times B = Final Drive ratio

so my Ta05v2 works like this;

70/18 = 3.888888
36/16 = 2.25
3.8888*2.25 = 8.75:1

if wanted a higher top end speed setup i do this;

70/18 = 3.8888
36/18 = 2 <----i change the center pulley to an 18t
FDR = 7.77777:1

or you can get a pinion with more teeth and get higher top end or less teeth and get more acceleration.

are they the same calculations that you are using for the 5.75:1 ratio?

does that help? it all confused the hell out of me to start with, mainly because of the whole anti-n00b wording on such matters, but its easy once you get it.
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Old 12-02-2010, 11:51 PM   #1490
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7.7 is roughly about stock FDR for my ta05v2 I think so it's not a top speed setup but higher than the 8.75:1
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Last edited by unsane_chimera; 12-03-2010 at 01:08 AM.
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Old 12-03-2010, 10:25 AM   #1491
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Default More Gear Ratios

So not a newbie question. Are there any guys here running 13.5?
Whats a good start out ratio for a non turbo speedo?
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Old 12-03-2010, 12:49 PM   #1492
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So not a newbie question. Are there any guys here running 13.5?
Whats a good start out ratio for a non turbo speedo?
I'm running 13.5.. don't know about the ratio but I'm using stock spur gear and 48 pitch 28t pinion

I think the ratio was somewhere around 4 or 5.
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Old 12-05-2010, 02:14 PM   #1493
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Questions??

Does anyone happen to have part numbers for

Blue aluminum gearboxes (Assuming the spool will fit in it)
Blue aluminum front uprights (c-parts)


Anything helps.
Thanks



For the fourth race in a row, I managed to snap my right C-hub for the FOURTH time.. Stripped out the bottom of the uprights and also ripped out the ball cup holder on the gearbox stripping the plastic there too and lost the plastic spacer (A3).
At least I stocked up on plastic C-hubs..
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Old 12-06-2010, 12:21 AM   #1494
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Does anyone happen to have part numbers for

Blue aluminum gearboxes (Assuming the spool will fit in it)
Blue aluminum front uprights (c-parts)


Anything helps.
Thanks



For the fourth race in a row, I managed to snap my right C-hub for the FOURTH time.. Stripped out the bottom of the uprights and also ripped out the ball cup holder on the gearbox stripping the plastic there too and lost the plastic spacer (A3).
At least I stocked up on plastic C-hubs..
fyi, the tamiya blue crack bulkheads are flippin expensive but are made so much better than the 3 racing ones in terms of fitment and precision. the spool will fit.

you will need the ifs front bulkhead if you have a ifs/ifs-r/v2/v2-r, p# 54019
http://www.speedtechrc.com/store/ebp...id=865&id=7606

and the standard ta05 bulkhead for the rear, p# 53990
http://www.speedtechrc.com/store/ebp...id=865&id=7447

not sure about the front uprights tho. i would stay with the carbon reinforced stuff. better replacing that than having messed up expensive aluminum pieces.
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Old 12-06-2010, 12:49 AM   #1495
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Originally Posted by platypus_s13 View Post
fyi, the tamiya blue crack bulkheads are flippin expensive but are made so much better than the 3 racing ones in terms of fitment and precision. the spool will fit.

you will need the ifs front bulkhead if you have a ifs/ifs-r/v2/v2-r, p# 54019
http://www.speedtechrc.com/store/ebp...id=865&id=7606

and the standard ta05 bulkhead for the rear, p# 53990
http://www.speedtechrc.com/store/ebp...id=865&id=7447

not sure about the front uprights tho. i would stay with the carbon reinforced stuff. better replacing that than having messed up expensive aluminum pieces.
Yeah, as soon as I saw they were $70 I decided I should just stick with plastic for a while.
And you're right about the aluminum I'll probably try the carbon.
Thanks
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Old 12-06-2010, 12:55 AM   #1496
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Zac I just realized who you are after i read your post about you breaking your car LOL!!!!! Why didn't you bring your Mini to the track!!!!!!! BTW I'm the guy with the yellow Mini.

Jay
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Old 12-06-2010, 01:00 AM   #1497
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Zac I just realized who you are after i read your post about you breaking your car LOL!!!!! Why didn't you bring your Mini to the track!!!!!!! BTW I'm the guy with the yellow Mini.

Jay
lol Yeah that was me
I would have but the bearings came in the mail after I left for the track. Just started building it today.
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Old 12-06-2010, 11:02 PM   #1498
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Hey guys I just got the EXOTEK EX05 chassis and wanted to know if anyone has a decent setup for a asphalt track that would not mind to share with me. I tried just about everything and anything this past weekend and the car has a really bad push coming out of a turn. The minute I touch the throttle car wants to spinout. I would greatly appreciate any and all suggestion from everyone and thanks in advance.
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Old 12-07-2010, 01:58 AM   #1499
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Anyone know if this two parts can be use on the TA05 VER.II?


http://www.rcmart.com/catalog/rc-evo...th=595_744_720


http://www.rcmart.com/catalog/rc-ta0...u-p-15553.html
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Old 12-07-2010, 06:04 AM   #1500
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Hey guys I just got the EXOTEK EX05 chassis and wanted to know if anyone has a decent setup for a asphalt track that would not mind to share with me. I tried just about everything and anything this past weekend and the car has a really bad push coming out of a turn. The minute I touch the throttle car wants to spinout. I would greatly appreciate any and all suggestion from everyone and thanks in advance.
so far this works for me:

FRONT
1C-1C
1mm spacers under the suspension blocks
innermost hole (CF shocktower)
2nd to the outermost hole (arm)
3mm spacer on upper camberlink
400wt oil / silver HPI springs
spool
5mm wheel hex
medium sway bar
around .5-1deg toe-out

REAR
1X-1D (2deg toe)
1.5mm spacers under the suspension blocks
innermost hole (CF shock tower)
2nd to the outermost hole (arm)
2mm spacer on the upper camberlink
outermost hole on the rear upright
3mm spacer for the outer campberlink (on the rear upright)
300wt oil / blue HPI springs
alum ball diff
5mm wheel hex
softest sway bar

running 13.5 with boost, rubber tires
PF Speed6 with stock wing

not the fastest car on the track but its fun to drive...
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