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Old 12-11-2005, 08:37 PM   #1
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Default How can i make my Epic Roar go faster?

I run a Yokomo SD Black Special

my tires are 57mm

tranny ratio is 2.353

48 pitch 75 tooth spur

48 pitch 22 pinion gear

Epic Roar Pro

Reedy 767's

Red + Red -

I race on a 48x100 grey ozite carpet

*I need it to go faster! like noticably fast!*

I updated this thread, getting it to go faster, i was 4 teeth under geared lol stillc an reply

Here is the layout we kind run each week, we switch it up some, always have the long straight away though


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Old 12-11-2005, 08:57 PM   #2
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Give the comm a cut, change the brushes and depending on the track you run on gear up a bit....
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Old 12-11-2005, 09:00 PM   #3
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done, done, and the motor temp is perfect right now, not to hot. I could try a clamp with a motor fan i guess?

I could put my 72 tooth spur on, make it go alil faster?
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Old 12-11-2005, 09:07 PM   #4
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whoa, you are really undergeared. Try running a 25 or 26 tooth pinion. It will greatly increase your speed, and it won't do any damage to your motor.
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Old 12-11-2005, 09:14 PM   #5
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Looks like i am running a 9.29 gear ratio and a 19.62 rollout?

pmed you chad
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Old 12-11-2005, 09:17 PM   #6
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ben your car was plenty fast! but you hit a board and its all down hill from there! you can only make a motor go so fast, its the driver that has to do the rest! and you running the same setup on your epis as the rest of us are for the most part! i run a 767 with a purple spring on the pos and a green on the neg!!
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Old 12-11-2005, 09:41 PM   #7
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reduced the contact area of the bushings, lightened the arms and also reducing the brush contact area would really get you there.

+

the routine stuff hood aligned, zapped magnet, cut comms and replace brushes.
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Old 12-11-2005, 09:43 PM   #8
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What size is your track? I 7.0 is good for asphalt on 100ft tracks. So some where in the mid 7's should be close on carpet.
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Old 12-11-2005, 09:49 PM   #9
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Quote:
Originally Posted by BSchorr
I run a Yokomo SD Black Special

my tires are 58mm

tranny ratio is 2.353

48 pitch 75 tooth spur

48 pitch 19 pinion gear

Epic Roar Pro

Reedy 767's

Red + Red -

I race on a 100x40 grey ozite carpet

*I need it to go faster! like noticably fast!*

only reply if you actually know how to make it go faster
http://www.motortuningsecrets.com/tunestockmotor.html

Go there...they also help explain target rollout etc.
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Old 12-11-2005, 09:50 PM   #10
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Ben, you're at about a .78" rollout right now...which is slightly undergeared for a 8 turn mod motor on that size track

Go up 4-5 teeth (try 4 first, a 23 tooth) and you'll be right where you should be.
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Old 12-11-2005, 11:05 PM   #11
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seem like my motor will be to hot then

i can hold my hand on the motor after the race, but i feel like if i gear up one more tooth, it will be hot? what should the temp be on the comm side of the motor? like 150 degrees or so? ill have to monitor it
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Old 12-11-2005, 11:07 PM   #12
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You should be able to hold your finger on the motor for about 3-4 seconds. With the newer cells the motors are gonna get hotter no matter what. Trust me on the gearing. You're so undergreared that you're probably making the motor over-rev which also gets it hot.
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Old 12-11-2005, 11:13 PM   #13
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ya, it does scream down the straights lol, ill give it a try, think a purple + and a green - would work like postie said for this setup? he said everyoen is running it at our track, what will a harder/soft do on the + and - Side, i forget shit,
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Old 12-11-2005, 11:14 PM   #14
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Purple/Green works...you might want to try Purple/Red though.
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Old 12-23-2005, 11:32 PM   #15
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Bump!

I geared up 2 teeth to a 21 tooth pinion and the car seemed to go slower? what gives i cut the com, new brushes, 767's the works!

I also had the same Red+ and Red- though, but i should seen a big difference!??????
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