Kyosho Mp9e by "targetingxmod"
#31
Tech Elite
Thread Starter
Bird!
Bird!
Bird!
Not "baby". I already got one child ... sleepless nights are over...
Or maybe my bird "didn't" tell me yet...
I will try that MM2 "troque Limit" function when my 30T pinion arrives!
Bird!
Bird!
Not "baby". I already got one child ... sleepless nights are over...
Or maybe my bird "didn't" tell me yet...
I will try that MM2 "troque Limit" function when my 30T pinion arrives!
Baby? Congrats man, nice times! Not so good for sleep though .
I'll let you know how it goes. What I don't like so much about the Fly Rato is that I think it's quite thin for a spur gear: 3.5mm, compared to normal 4 mm; so will be a bit harder on the pinions due to less contact area. Before I try, I still need to do the 1/5 GRP tire mod on the axles though... got a bit distracted with a future project (no Batmobile 8ight, but a "crash-and-burn?" 56mm motor Kyosho GT2).
Anyway, did you check the kv of your motor already with the Torque test on the MM2 ESC? I guess it's a ~1500 too; I asked owner of the shop if mine was a mix-up, but he said it wasn't and that he rates the kv for this motor under 200A load - which is a bit strange to do, but I'm actually quite happy with it, given the limited 8-10S ESC options.
With your stock spur and the 34T XO-1 Traxxas pinion, ~1500kv would already get you around ~163 kph no-load, nominal voltage, unballooned, wheel-speed on your (~116 mm?) buggy tires. I don't think your tires will stay on long enough to reach that speed though. Like Koval said, you need GRP tires man - ok, it can wait until in January . They're smaller though, so then you need to gear up again. With the 97 mm GRP tires, 34/46 gearing yields 136 kph no-load nominal, so then you probably do need the 35T spur.
Funny you opened up that URC thread again btw, other one got closed due to some mud throwing, entertaining though .
I'll let you know how it goes. What I don't like so much about the Fly Rato is that I think it's quite thin for a spur gear: 3.5mm, compared to normal 4 mm; so will be a bit harder on the pinions due to less contact area. Before I try, I still need to do the 1/5 GRP tire mod on the axles though... got a bit distracted with a future project (no Batmobile 8ight, but a "crash-and-burn?" 56mm motor Kyosho GT2).
Anyway, did you check the kv of your motor already with the Torque test on the MM2 ESC? I guess it's a ~1500 too; I asked owner of the shop if mine was a mix-up, but he said it wasn't and that he rates the kv for this motor under 200A load - which is a bit strange to do, but I'm actually quite happy with it, given the limited 8-10S ESC options.
With your stock spur and the 34T XO-1 Traxxas pinion, ~1500kv would already get you around ~163 kph no-load, nominal voltage, unballooned, wheel-speed on your (~116 mm?) buggy tires. I don't think your tires will stay on long enough to reach that speed though. Like Koval said, you need GRP tires man - ok, it can wait until in January . They're smaller though, so then you need to gear up again. With the 97 mm GRP tires, 34/46 gearing yields 136 kph no-load nominal, so then you probably do need the 35T spur.
Funny you opened up that URC thread again btw, other one got closed due to some mud throwing, entertaining though .
#32
#33
Tech Elite
Thread Starter
Well, problems after crash were solved and today was day to make sure it rides good!
-Video is uploading and speaks for itself...
+ YouTube Video | |
-Video is uploading and speaks for itself...
Last edited by targetingxmod; 12-09-2014 at 02:48 AM.
#35
Cool it's running well again! I think you need to gear up man. Wanted to send you a PM about amain's $2 intl shipping, but stock was very low and I happened to buy the last 2x 29T and 1x 34T Traxxas XO-1 pinions they had, for a whopping total of 4 Euro per pinion, incl shipping .
Maybe I missed it in the video, but how did you measure the claimed 120+ kmh? Your gearing gives you a no-load wheel speed of ~105 km/h, assuming the motor is 1500kv, instead of 1200kv (~84 km/h)... In my set-up (114 km/h calculated no-load wheel speed), I'm seeing about 10% higher speed than the calculated speed, due to some (7.5°) timing advance and the massive ballooning of the truggy tires. Not downplaying your results, but if you put up numbers like that, you need to be able to back them up .
As a great man once spoke:
Maybe I missed it in the video, but how did you measure the claimed 120+ kmh? Your gearing gives you a no-load wheel speed of ~105 km/h, assuming the motor is 1500kv, instead of 1200kv (~84 km/h)... In my set-up (114 km/h calculated no-load wheel speed), I'm seeing about 10% higher speed than the calculated speed, due to some (7.5°) timing advance and the massive ballooning of the truggy tires. Not downplaying your results, but if you put up numbers like that, you need to be able to back them up .
As a great man once spoke:
Last edited by Dr_T; 12-09-2014 at 01:48 AM.
#36
Tech Elite
Thread Starter
Well since i have no gps or radar gun yet... all i can say is that is FAST!
It was based on your gps that marks 121kmh with the same motor/gearing but with taller tires and being a Truggy!
Honestly i had no idea until i saw your gps pics, so it's around that.. maybe 110-115kmh
Having problems with Paypal lately by the way...
"no 200srx (bird), no tires, no parts, no money "
Video now has mores pics and legends!
It was based on your gps that marks 121kmh with the same motor/gearing but with taller tires and being a Truggy!
Honestly i had no idea until i saw your gps pics, so it's around that.. maybe 110-115kmh
Having problems with Paypal lately by the way...
"no 200srx (bird), no tires, no parts, no money "
Video now has mores pics and legends!
Cool it's running well again! I think you need to gear up man. Wanted to send you a PM about amain's $2 intl shipping, but stock was very low and I happened to buy the last 2x 29T and 1x 34T Traxxas XO-1 pinions they had, for a whopping total of 4 Euro per pinion, incl shipping .
Maybe I missed it in the video, but how did you measure the claimed 120+ kmh? Your gearing gives you a no-load wheel speed of ~105 km/h, assuming the motor is 1500kv, instead of 1200kv (~84 km/h)... In my set-up (114 km/h calculated no-load wheel speed), I'm seeing about 10% higher speed than the calculated speed, due to some (7.5°) timing advance and the massive ballooning of the truggy tires. Not downplaying your results, but if you put up numbers like that, you need to be able to back them up .
As a great man once spoke:
Maybe I missed it in the video, but how did you measure the claimed 120+ kmh? Your gearing gives you a no-load wheel speed of ~105 km/h, assuming the motor is 1500kv, instead of 1200kv (~84 km/h)... In my set-up (114 km/h calculated no-load wheel speed), I'm seeing about 10% higher speed than the calculated speed, due to some (7.5°) timing advance and the massive ballooning of the truggy tires. Not downplaying your results, but if you put up numbers like that, you need to be able to back them up .
As a great man once spoke:
Last edited by targetingxmod; 12-09-2014 at 06:24 AM.
#37
Tech Elite
Thread Starter
#38
Tech Elite
Thread Starter
#40
Tech Elite
Thread Starter
Or burn motor!
I am not after world record single pass speed freaks runs... i am after emptying batery pack's enjoying speed runs after speed runs till batery see's LVC and with no heat issues!
Hard task!
Let's see... winter time gives no weather to try it... but soon it will be tested!
I am not after world record single pass speed freaks runs... i am after emptying batery pack's enjoying speed runs after speed runs till batery see's LVC and with no heat issues!
Hard task!
Let's see... winter time gives no weather to try it... but soon it will be tested!
#41
Or burn motor!
I am not after world record single pass speed freaks runs... i am after emptying batery pack's enjoying speed runs after speed runs till batery see's LVC and with no heat issues!
Hard task!
Let's see... winter time gives no weather to try it... but soon it will be tested!
I am not after world record single pass speed freaks runs... i am after emptying batery pack's enjoying speed runs after speed runs till batery see's LVC and with no heat issues!
Hard task!
Let's see... winter time gives no weather to try it... but soon it will be tested!
Good luck
#42
Tech Elite
Thread Starter
Just be careful for the temps on your motor and esc , it is preferable to plug a wattmeter betwen your motor and esc when you trying to hit the limits especialy if you want topalying around till emptying your batt pack .Peak currents on such high gerarings are and this gadget will help you find the most safe highest gearing on your car .
Good luck
Good luck
#43
Good stuff, that's ~144kmh no-load gearing (1500kv), getting serious now! Fling off some tires man .
Probably a good time now to add a big 24V DC fan on the motor, looking forward to your results!
Here's some inspiration for making an Eagletree logger high-current proof: http://www.ultimatercnetwork.com/for...d.php?t=215380, but maybe Koval knows some easier/better solutions.
Probably a good time now to add a big 24V DC fan on the motor, looking forward to your results!
Here's some inspiration for making an Eagletree logger high-current proof: http://www.ultimatercnetwork.com/for...d.php?t=215380, but maybe Koval knows some easier/better solutions.
#44
I totally agree with dr_t,
there are also some onboard wattmeters like this
there are also some onboard wattmeters like this
#45
Tech Elite
Thread Starter
Hum...
Hum...
30T pinion now....
-Unglued one tire and foam out...
-So i glued it again as foam now to! (not on pic, pic is just the tire inside)
-Surprise... another tire, this time the foam is sticking not from the sides, but from the middle of the tire... and i will glued it again! need the acetone trick in a bucket for it, now!
( i know i need belted tires... but that's what i have and it's fun to see what happens with what we got, and not to rush to spend big bucks to lalala land)
One thing that worries me now is not the heat... Still haven't found it on this motor... CHRIST!! (is this a UFO motor?) or maybe the buggy is lighter for it "but i haven't play a whole pack cause tires get unglued... i didn't have this problem on 22T pinion... or maybe they are behind bold and it was coincidal with changing gear)
The thing is: NOW when squeezing the throttle it makes wheelies like a beast on crack steroids with cocain mixed on heroin! All with punch control at maximum and throttle curve very soft. (not yet working with the "torque limit" cause NO, yet, ok?) and finally been gentle on the trigger....
I had it flying again not because a corner, with no injuries but because of wheelie TAKE off from midle inicial aceleration and i really need those T-BONES bumpers and a wheelie bar!
With 22T it didn't wheelie at all. But with 30T pinion it will wheelie and fly....
And space's where i usual drive are smaller and smaller to strecth it's legs....
Is this a "paranormal" effect? Isn't it supposde to be the other way?
I only changed the pinion from 22T to 30T
I miss the 22T pinion feeling drive!
-Fast but predicatable!
Anyone can explain to me, why wheelies on demand with a bigger pinion and not with a smaller pinion, if we can say a 22T is smaller....
Hum...
30T pinion now....
-Unglued one tire and foam out...
-So i glued it again as foam now to! (not on pic, pic is just the tire inside)
-Surprise... another tire, this time the foam is sticking not from the sides, but from the middle of the tire... and i will glued it again! need the acetone trick in a bucket for it, now!
( i know i need belted tires... but that's what i have and it's fun to see what happens with what we got, and not to rush to spend big bucks to lalala land)
One thing that worries me now is not the heat... Still haven't found it on this motor... CHRIST!! (is this a UFO motor?) or maybe the buggy is lighter for it "but i haven't play a whole pack cause tires get unglued... i didn't have this problem on 22T pinion... or maybe they are behind bold and it was coincidal with changing gear)
The thing is: NOW when squeezing the throttle it makes wheelies like a beast on crack steroids with cocain mixed on heroin! All with punch control at maximum and throttle curve very soft. (not yet working with the "torque limit" cause NO, yet, ok?) and finally been gentle on the trigger....
I had it flying again not because a corner, with no injuries but because of wheelie TAKE off from midle inicial aceleration and i really need those T-BONES bumpers and a wheelie bar!
With 22T it didn't wheelie at all. But with 30T pinion it will wheelie and fly....
And space's where i usual drive are smaller and smaller to strecth it's legs....
Is this a "paranormal" effect? Isn't it supposde to be the other way?
I only changed the pinion from 22T to 30T
I miss the 22T pinion feeling drive!
+ YouTube Video | |
-Fast but predicatable!
Anyone can explain to me, why wheelies on demand with a bigger pinion and not with a smaller pinion, if we can say a 22T is smaller....
Last edited by targetingxmod; 12-17-2014 at 10:00 AM.