hmmm Posted March 28, 2011 Share Posted March 28, 2011 (edited) Seem this may be a common problem. Bought an XB EVO from STO racing and it lasted 3 weeks til the motor failed , smelled like it burnt out. Rang sto taday and they said just send it in and they will send a new one back same day . Great service if they follow through. Is this a common problem? Do they fit cheap motors in RTR's or was I just unlucky. Edited March 28, 2011 by hmmm Quote Link to comment Share on other sites More sharing options...
Garry Posted March 30, 2011 Share Posted March 30, 2011 It does appear the motors have a shorter life expectancy than most, probs the price to pay for having a cheap motor in the kit ([url=http://www.hpiracing.co.uk/piw.php?partNo=MV22079] Quote Link to comment Share on other sites More sharing options...
danny boy Posted March 30, 2011 Share Posted March 30, 2011 seems like a big downfall of what could be quite a good car, if it goes again try and got a different motor, i wouldnt keep replacing if its just gunna break again Quote Link to comment Share on other sites More sharing options...
hmmm Posted March 30, 2011 Author Share Posted March 30, 2011 Hi, Looks like all the other HPI brushed motors are even cheaper Other motors I got a #1146 - FIREBOLT 15T MOTOR (540 TYPE) thinking this would be better being a genuine HPI and not maverick I'll have to give it a go and see. I still thing the XB is a good buy my 4 year old has crashed it loads and still not broken anything except the motor . Quote Link to comment Share on other sites More sharing options...
hmmm Posted April 2, 2011 Author Share Posted April 2, 2011 Great service from STO sent the old motor in on wednesday and got the new one this morning. Fitted the HPI Fire bolt only to find out it by default turns in the opposite direction. Had to swap the diffs over to get it to go forward at full speed now its runnin great. Quote Link to comment Share on other sites More sharing options...
Jamo Posted April 5, 2011 Share Posted April 5, 2011 Hi got my nipper( hes 3 and loves my cars) an xb evo,very good buggys except the motor is rubbish,burnt his first one out just going up and down the park,only had it 3 weeks..just had it replaced and i think its on its way out after 2 days,smells of burning and very,very hot..... what do you think of the firebolt ,i was thinking of getting that one as a replacement... Quote Link to comment Share on other sites More sharing options...
hmmm Posted April 5, 2011 Author Share Posted April 5, 2011 (edited) Hi, Have run the firebolt a few times now and even after running for 15 mins solid the motor is not hot. It is faster than the maverick and is actually cheaper. Only drawback is that it runs in the opposite direction to the Maverick, you will have to swap the diffs over. There's another post around discussing this problem I'll see if I can dig out a link to it. And Here Edited April 5, 2011 by hmmm Quote Link to comment Share on other sites More sharing options...
Jamo Posted April 6, 2011 Share Posted April 6, 2011 ok thanks for that,it should be here in a day or two so i can try it... Quote Link to comment Share on other sites More sharing options...
Jamo Posted April 7, 2011 Share Posted April 7, 2011 Thats the firebolt fitted,its faster and does run a bit cooler....had to swap the diffs over... Quote Link to comment Share on other sites More sharing options...
hmmm Posted April 10, 2011 Author Share Posted April 10, 2011 Hi, well went out today and ran the XB for about 12 minutes and now the ESC has burnt out really seems the electrics in the maverick are sub standard. I know it's cheap but if they can't put components in that don't last over a month then what's the point. I will be asking for a replacement other than a maverick part from sto and see how that pans out.... Quote Link to comment Share on other sites More sharing options...
hmmm Posted April 11, 2011 Author Share Posted April 11, 2011 The guy from STOracing told agreed to send me an Etronix probe 12 esc should be better than the maverick he said it could take more amps so should be fine. Hope so I'll see how it goes. Quote Link to comment Share on other sites More sharing options...
willmp Posted April 22, 2011 Share Posted April 22, 2011 Had to swap the diffs over to get it to go forward at full speed now its runnin great. Sounds like more work than swapping the leads between the ESC and motor over... Quote Link to comment Share on other sites More sharing options...
hmmm Posted April 23, 2011 Author Share Posted April 23, 2011 Sounds like more work than swapping the leads between the ESC and motor over... The esc delivers less power in reverse and so if you swapped the laeds around the car would be faster backwards. Changing the diffs was the only way to go and took less than 30 mins Quote Link to comment Share on other sites More sharing options...
willmp Posted April 26, 2011 Share Posted April 26, 2011 The esc delivers less power in reverse and so if you swapped the laeds around the car would be faster backwards. Changing the diffs was the only way to go and took less than 30 mins If you swap the leads on the motor round then you're reversing the current running through the coils in the motor, thus forward from the ESC applies a forward motion to the motor and through the drive chain. I've done this on several of my cars already using this ESC. If you switch the throttle on the transmitter to reverse then you're applying reverse from the ESC to a forward action in the car, which causes less power and the brake to work incorrectly. The only issue I can see, and I could be wrong, is that the airflow through the motor the majority of the time is reverse what it is designed to do. This ESC is now in my TT01 drifter as I've upgrade the Strada XB Evo to brushless. I don't believe I can flip the diff in that car. Quote Link to comment Share on other sites More sharing options...
Garry Posted April 26, 2011 Share Posted April 26, 2011 Its to do with motor timing, its assembled with advanced timing and no way of adjusting it. The ''Forwards'' direction of ESC movement gives 100% power, the ''Reverse'' direction gives around 40-50% power, so you don't have an uncontrollable car going backwards. Also, to give a degree of braking effect theres a delay between travelling in one direction, then going in the other direction: Forwards to reverse movement = 2/3secs delay Reverse to forwards movement = no delay For the time being, you have to try and match the faster revving side of the motor movement to the ''Forwards'' direction on the ESC. Once those are matched, then try to make that move the car fowards. You will probably need to flip the diffs around. The switch on the transmitter just affects which way you push the trigger to make it go, neither does swapping the wires over. So basically, I'd do this: Step 1. Put swtich on transmitter to NOR Step 2. Wire motor to ESC, Pos to Pos, Neg to Neg Step 3. Sit the car on a block so the wheels can rotate (or take the pinion off) Step 4. Turn everything on and see which side of trigger movement does what (in terms of delay and RPM). If pulling the trigger back makes the motor rev higher than pushing it forwards, try full throttle, then go full reverse and see if there is a delay. If there is, go to Step 6. If there isn't, then swap the motor wires over, flick the switch on the transmitter and try Step 4 again. Step 5, Put the pinion on (or put the car down) and see what the throttle direction on the transmitter does in relation to driving the car. Step 5, If its still backwards, then the diffs will probably need flipping over inside each gearbox casing. Read this for a similar issue: Quote Link to comment Share on other sites More sharing options...
hmmm Posted April 26, 2011 Author Share Posted April 26, 2011 Wow all way too technical for me just know that when I changed the diffs over it started going faster forward than reverse.... Result Quote Link to comment Share on other sites More sharing options...
Garry Posted April 27, 2011 Share Posted April 27, 2011 Blame Maverick for putting the diffs in the direction they did. At least its an easy fix. Quote Link to comment Share on other sites More sharing options...
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