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Old 05-30-2011, 06:44 AM   #1936
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Originally Posted by PDR TOO View Post

I am no expert on things electrical, however looking at the various manufacturers web sites, as far as I can see the 3,100 you are quoting is the RPM/Volt (Kv). The standard looks to be derived by measurement at 7.2volts over a set period of time.

This would see your motorís nominal upper rev level at around 22,000.

Looking at the LRP site, their 13.5 motors are stated to rev at around 22,000, which is consistent with this calculation.
Okay so 7.2volt * 3100rpm/volt = 22320 rpm

My lipos start at a slightly higher voltage (8.4v as each cell is measured at 4.20v when fully charged), should I then multiply with 8.4?

Or is 7.2 a middle value right between 8.4 (full charge) and 6.0 (cut off) for lipos?

Appreciate the info BTW ;-)

If so I could make this toy car go faster than my old Skoda using a 3cell lipo ;-)
Xray T2'008 - Robitronic 13.5 Turn Brushless - Excelorin ESC
Losi XXX-S - Traxxas (550 can) 12 Turn Brushed - GM V3r ECS
Traxxas Rustler - Arrowind 13 Turn Brushless - Arrowind ESC
Losi Mini Desert Truck - Reedy 19 Turn Brushed - Traxxas XL-5 ESC
Losi Aftershock - Hobbyking 1550 1/8 Brushless - Trackstar 150A ESC

Last edited by Coach-Z; 05-30-2011 at 07:06 AM.
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Old 05-31-2011, 11:28 PM   #1937
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Xray Since 2006 - LRP - PF - Futaba -
"Retired from Racing"

Last edited by Brokin Racing; 01-25-2016 at 03:06 PM. Reason: old enough to know better!!
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Old 07-23-2011, 10:45 PM   #1938
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Just put in the Spec-R gear diff front and rear, and the rear would not allow the 52mm driveshafts in my 008 EU, had to change to 50mm. I dont remember reading this anywhere, but the 52mm ECS's worked fine in front. Anyone else noticed this?
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Old 07-26-2011, 11:22 PM   #1939
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Previously mentioned about mods to the 008, finally finished it, pic's later

Basically it's got...

Exotek Lower Deck
Tried one of these 18mths ago, this one just seems better, more consistant
Polished bulkheads
Nice & bright
Schumacher Ceramics
Soooo much smoother (& cheaper)
T3 Diff
Gear diff coming
EGR-Mart Alloy centre pulleys
Look great & don't seem to ad extra wear to belts
Titanium Turnbuckles
Just to match the polished bulkheads
H1 - H2 Links on front
Have spare L1 - L2's if needed
L1 - L2's Links on rear
Have spare H1 - H2's if needed
1.2mm EGR-Mart Front sway bar
Cheaper than Xray & just as good
1.1mm Xray Rear sway bar
Couldn't get an EGR-Mart one
T3 Aerial mount
Save weight everywhere!
TRF Shocks with Xray Alloy lower spring plates
Associated Top Shock mounts (p/n 31250)
Spaced f & r shocks outward about 5mm
6 Deg C Hubs
It's what I prefer

These mods were done to another 08 with standard deck, it had no trouble keeping up with later model cars in club days, mainly 21.5 & stock. It was particularly good at turning in underneath most others. Only tried this car today & it seems quite good

All up it cost $140 to build including lower deck, using an existing 08 & spares I already had on hand.

A worthwhile exercise & for most users, I'd imagine it would negate the need to update to a later car if you were on a budget
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Old 10-29-2011, 11:48 AM   #1940
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Questions?? carpet help

Can someone give me advice on carpet set up running rubber tires, the rear of my car is loose and washes out when I go into a turn and get off throotle. I am running mostly a stock 008 set up.
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Old 01-15-2012, 09:52 AM   #1941
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Originally Posted by Coach-Z View Post
Just a little update.

If you decide to go for a 38/20 pulley set, you will need larger belts than the ones that came with the car.

You need 513mm at the front and 189mm at the back.

For me though, I actually have enough speed right now with the 68T spur and the 32T pinion I'm running right now. Still just aiming for keeping the car on the track, just map I don't have to go get it out of the grass and bushes every two minutes.

I'm still gonna swap the pulleys when I get the new belts though, cause that keeps the front belt clear of the pinion set screw.
you can use the yokomo bd189 for the ear and atomic 171 tooth for the front
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Old 01-25-2016, 12:36 PM   #1942
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Sorry to bring back a old thread. Does any one use US foam chassis for usgt & rubber tire
Would I use just the carpet setup for rubber tires
Any other info /tips on setting up
Oo8 would be great.
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