Rustic Ade Posted January 29, 2023 Share Posted January 29, 2023 My folks were sorting their loft out and found an early 90's Mardave Cobra sport I had back then. The car is complete but the transmitter is missing. Has anyone upgraded an old car like this to modern electronics/motor etc? How did you get on? Could it be done on a budget? Any pictures? Quote Link to comment Share on other sites More sharing options...
Lone-wolf Posted January 29, 2023 Share Posted January 29, 2023 you could pick up a flysky TX/RX combo for about £22, i would fit a modern speed controller for about another £25 and i guess the battery was a Nicad so i would replace that with a newer NI-MH you would also need a charger for battery 1 Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted January 29, 2023 Author Share Posted January 29, 2023 I had considered monkeying about and converting other cars to run off the same control so would need to get a tx compatible with the receiver's in other cars so was thinking separate rx and esc. What batteries is the motor shown compatible with? I have some 2s lipos from the kids wltoys cars. 1 Quote Link to comment Share on other sites More sharing options...
Shergar Posted January 29, 2023 Share Posted January 29, 2023 I’d sell/swap the Demon motor out for something easily replaced, the buggy is in really good fettle for its age 👍 1 Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted January 29, 2023 Author Share Posted January 29, 2023 Any suggestions? I really am novice and need to figure out 'turns' etc. Had been tempted to just wing it and buy the electronics set for something like the kids wltoys buggies, i.e motor, esc, steering servo. Then but a tx and rx (hearing about flysky and Dumbo RC), which I could then convert to control other cars by fitting new rx units to them. Or am I being naive with regards to simply slapping some gear in? Quote Link to comment Share on other sites More sharing options...
Popular Post Alex97 Posted January 29, 2023 Popular Post Share Posted January 29, 2023 (edited) ESC - https://www.modelsport.co.uk/product/hobbywing-quicrun-1060-brushed-waterproof-esc-sbec-t-plug-1339464 Motor - https://www.modelsport.co.uk/product/core-rc-27t-silver-can-brushed-540-motor-442360 Servo (optional) - https://www.modelsport.co.uk/product/savox-sc-0254-standard-size-digital-servo-speed--367171 Controller/ receiver - maybe see if anyone has a new one from a RTR in the forsale section Battery - https://www.modelsport.co.uk/product/voltz-4600mah-stick-pack-72v-w-deans-connector-446563 Charger - https://www.modelsport.co.uk/product/skyrc-s65-ac-charger-65w-438918 Adaptor for charger - https://www.modelsport.co.uk/product/etronix-female-xt-60-to-male-dean-plug-connector-adaptor-385175 If you wanted to change your model later on you can transfer all of the electrics to another car and the charger will also let you charge a lipo so your future proofing yourself. The ESC could take a faster motor (lower the turn faster the motor) however for the age of the car I'd stay a 27t will be plenty. Edited January 29, 2023 by Alex97 3 1 Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted January 29, 2023 Author Share Posted January 29, 2023 Bloody hell! That's a cracking reply! Gives me some homework for the evening! Thank you. Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted January 29, 2023 Author Share Posted January 29, 2023 What about the Dumbo/Flysky transmitters so I can have one handset for different cars. Was thinking of putting a gyro rx in my Big Rock, my brother has one in his Votecks and he'll hand me my arse on a plate when we catch up. Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted January 29, 2023 Author Share Posted January 29, 2023 Is that motor just not suitable for that car? Quote Link to comment Share on other sites More sharing options...
Alex97 Posted January 29, 2023 Share Posted January 29, 2023 1 hour ago, Rustic Ade said: Is that motor just not suitable for that car? Should be ok however if it's 20 years old personally I'd replace it. If you want a multi channel radio look at the flysky GT5, new RXs are about £7 and you get get one with a gyro for £15-20 plus it has a nice screen. 1 Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted January 29, 2023 Author Share Posted January 29, 2023 (I'll let you relax after this) The Flysky tx will then be able to control any vehicle fitted with compatible receiver? Literally just plug and play? Quote Link to comment Share on other sites More sharing options...
Alex97 Posted January 29, 2023 Share Posted January 29, 2023 8 minutes ago, Rustic Ade said: (I'll let you relax after this) The Flysky tx will then be able to control any vehicle fitted with compatible receiver? Literally just plug and play? Yes, it has a 20 model memory. 1 Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted February 15, 2023 Author Share Posted February 15, 2023 On 29/01/2023 at 20:24, Alex97 said: Should be ok however if it's 20 years old personally I'd replace it. If you want a multi channel radio look at the flysky GT5, new RXs are about £7 and you get get one with a gyro for £15-20 plus it has a nice screen. Bought one, great unit, even I have been able to monkey about with adjusting settings! 1 Quote Link to comment Share on other sites More sharing options...
Steve-O2021 Posted February 16, 2023 Share Posted February 16, 2023 Used to have one of these and the Mardave V12 🙂 1 Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted February 16, 2023 Author Share Posted February 16, 2023 Did you modify it at all? Quote Link to comment Share on other sites More sharing options...
Steve-O2021 Posted February 17, 2023 Share Posted February 17, 2023 On 16/02/2023 at 13:03, Rustic Ade said: Did you modify it at all? Back when I had one brushless wasn't around and it was all 27mhz crystals etc and transmitters with 6ft antennas lol... Only mods I did was an ESC and Modified Motor 1 Quote Link to comment Share on other sites More sharing options...
Steve-O2021 Posted February 17, 2023 Share Posted February 17, 2023 (edited) To be honest this one looks too clean to use. They do sell for a lot on ebay and this one of yours looks new Edited February 17, 2023 by Steve-O2021 Quote Link to comment Share on other sites More sharing options...
Steve-O2021 Posted February 17, 2023 Share Posted February 17, 2023 Eg this one is no where near like yours and went for over £120 - https://www.ebay.co.uk/itm/266055517131?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=Sw4nLmglTzG&sssrc=2349624&ssuid=eHUxVO3MTke&var=&widget_ver=artemis&media=COPY Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted February 17, 2023 Author Share Posted February 17, 2023 5 hours ago, Steve-O2021 said: Eg this one is no where near like yours and went for over £120 - https://www.ebay.co.uk/itm/266055517131?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=Sw4nLmglTzG&sssrc=2349624&ssuid=eHUxVO3MTke&var=&widget_ver=artemis&media=COPY Yeah but it's a bit of fun. Or would be if I could get it going faster than I can walk! I don't know anything about the motors and pinion gears. I have a 14 tooth on the motor which goes to a 58 toothed gear. All standard gearbox/diff, motor isn't but don't know what it is. Any suggestions for making it quicker, it does seem to handle well albeit slow. Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted February 17, 2023 Author Share Posted February 17, 2023 6 hours ago, Steve-O2021 said: Back when I had one brushless wasn't around and it was all 27mhz crystals etc and transmitters with 6ft antennas lol... Only mods I did was an ESC and Modified Motor That's the era I got it, mid 90's. Quote Link to comment Share on other sites More sharing options...
Fat Freddy Posted February 17, 2023 Share Posted February 17, 2023 49 minutes ago, Rustic Ade said: Yeah but it's a bit of fun. Or would be if I could get it going faster than I can walk! I don't know anything about the motors and pinion gears. I have a 14 tooth on the motor which goes to a 58 toothed gear. All standard gearbox/diff, motor isn't but don't know what it is. Any suggestions for making it quicker, it does seem to handle well albeit slow. I’d just run it with the gearing you have for now. But if you want to go a bit faster get a larger pinion, or if you feel it needs more torque, get a smaller pinion. Pinion gears are relatively cheap and easy to swap, so experiment. 1 1 Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted February 17, 2023 Author Share Posted February 17, 2023 1 minute ago, Fat Freddy said: I’d just run it with the gearing you have for now. But if you want to go a bit faster get a larger pinion, or if you feel it needs more torque, get a smaller pinion. Pinion gears are relatively cheap and easy to swap, so experiment. It really is slow. The pinion gear it the small one right? Attached directly to the motor? The one I have it 14 toothed, how much bigger would I go to have a noticeable increase in speed? I guess it's compromise between speed and strain on the motor. Quote Link to comment Share on other sites More sharing options...
Stormbringer Posted February 17, 2023 Share Posted February 17, 2023 if you go with a bigger pinion youl have to watch motor temps to makes sure it doesnt get to hot Quote Link to comment Share on other sites More sharing options...
Rustic Ade Posted February 17, 2023 Author Share Posted February 17, 2023 22 minutes ago, Stormbringer said: if you go with a bigger pinion youl have to watch motor temps to makes sure it doesnt get to hot It already gets hot. Just has no guts. Could the age of the motor be an issue? Do you reckon I should contact Mardave direct and see what they recommend? Quote Link to comment Share on other sites More sharing options...
Stormbringer Posted February 17, 2023 Share Posted February 17, 2023 it is an old motor and could be on way out mardave motors may just be rebadged generic motors(could be wrong) but i guess no harm asking them and see what they recommend 1 Quote Link to comment Share on other sites More sharing options...
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