Tamiya TRF416 WE VS. Xray T2 009 Lipo Modified rc car racing, part 1

[gskouloudis]

Hi my friend. I want your help. I have a xray t2 2009 and I want a motor for it. Iam going to buy LRP x12 but I dont know how turns is the ideal. The track I will go to run is like this in the video. 6.5 turns is good? Which pinion in the gear of the motor? Thanks very much..

[rcdump]

@gskouloudis My personal opinion about he LRP motors isn't that positive. The performance is good, but the durability is a little bit of a disappointment.

What ESC (speed controller) are you going to use and are you going to use dynamic timing on the ESC?

What is your goal? Driving modified or stock? For fun/training or competition?

Settings and gearing all depend on these things.

[gskouloudis]

@rcdump Thanks you very much. I have a Mamba Max Pro ESC for sensored or sensorless motors. I want to drive modified for local competions. If you could tell me a motor with the suitable turns and gearing. The track Iam playing has the same corners like this in the video. Thanks.

[rcdump]

@gskouloudis The Mamba Max has dynamic timing. This means you can even use a 10.5t motor if the settings are spot on. This means a little less power, but top speeds can be almost the same as modified.

Or just don't use dynamic timing on the ESC and hook it up with a 4.0t, 4.5t, 5.0t or a 5.5t. Alle depends on how long the straigth end is. I use a 4.5t or even 4.0t for this track, because the straight end is quite long.

[rcdump]

@gskouloudis Good motors: Speed Passion (SP) version 2 and 3, GM (Graupner Modellsport), Hobbywing Xerun (sensored). These are my favorites. Only use sensored motors for competition!

My FDR on this track: 7.33

Don't go any lower than this. All depends on what motor will be used.

For a 5.5t, maybe start by trying a FDR of: 7.50

For a 4.5t start with 7.70

For a 4.0t start with 7.90

Measure temperature very minute when trying a new motor and or FDR!!

[gskouloudis]

@rcdump Thank you very much for your help. I bought the Speedpassion 5.5!!

[otaner142]

I cant believe that those brushless motors are running less than 160f !!!

[scott231us]

Freaking amazing. I love the handling of those. I have a TC4 and it isn't able to make sharp turns with any good speed, can you tell me what you can upgrade to make cars turn like that?

[rcdump]

@scott231us Thanks for the comment. Basically, what I like is a nervous car. In order to make it nervous you can do a few things:

Choose some good tires. I'm not sure if you have a tire regulation, if not, try Sorex 36, RP 30, RP 40 or something similar. Make sure they are glued all around very well!

Try using a smaller pinion; this causes the car to slow down quicker after releasing the throttle which transfers the weight to the front, thus more turn-in.

Not too much negative camber!

[rcdump]

@scott231us Try to raise the upper arm links in the center, (differential side) a little bit more on the front than rear. This makes the car very responsive and aggressive.

Try to limit your Ackermann value. I made my steering more parallel; less drag from the inner wheel during cornering.

[rcdump]

@scott231us Springs: start with the hardest possible. No grip means softer springs. Go down to a value that suits you.Make sure you differential is buttersmooth! Very very important. Clean and renew diff parts occasionally.

Ride height: fr 5.0mm, r 5.3mm

Camber: fr -1, r -1

toe in: fr -0.5, r 2.5 (toe in very important; go as low as possible in the rear to make the car turn better)

Try to learn stuff about downstop and droop. Very important.

Downstop for my 416: fr 6, r 4

[ther1rida]

@scott231us I agree, I have a TC4 and it is not that hot on turns. I have a new respect for Tamiya

[laurentblitz]

cool ! but what's your motor's FDR and temperatures after run ?

[rcdump]

@laurentblitz FDR will be something between 7.56 and 7.20, alle depends on the outside temperature and track conditions.

After run my motor won't be hotter than 70 degrees celsius/ 158 degrees Fahrenheit.

[McAeroxX]

looks a bit like the track where i race in bamberg, germany

[kakikudibibirmu100]

what do u mean with xray t2 'lipo modified'?

i really want to know..

[rcdump]

@kakikudibibirmu100 It means that we use lipo batteries together with modified motors. In others words fast and loads of torque...Modified is the name of the class.

[angmoku]

hi..what tire you use.?i have i 416we..but so hard to handle at corner..and cannot full trottle..help me

[rcdump]

@angmoku I use RP30 pre-glued tires...Very good traction all the time.