Which Gear Reduction unit?? Hi All, Newbie to the site:mrgreen: . I have spent the last few days reading/searching along... I have a 100% bone stock TXT-1 that I am going to transform into a crawler "thumbsup" I do have 2 brand new Kyosho Mag Mayhem 22t motors and some 10t and 13t pinions as well. I would like to use these with a gear redux unit From what I have been reading... It looks like a gear reduction unit along with a single motor will fit the bill as a good starting point (along with removing some excess weight. ) I am looking at the following 3 units
Help a Newbie out! - Wanting to hear some thoughts! Thanks in advance! - C:twisted:S- |
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I took the gamble - I wound up buying the HPI Wheel King Gear box - for starters I am going to use the stock 540 can wired backwards. It should arrive by the end of the week... I also have a transmission from an old Tamiya F-150 Ranger (Sand Scorcher / Rough Rider / Super Champ same as the re-released "Super Champ" ) I know that it has a nice 70T "thumbsup" pinion on it that is driven by the motor..... I want to figure out what the final reduction of that tranny is compared to the TXT-1 transmission. I think it has better reduction than the TXT-1 tranny.. I will keep you all posted :D |
I ran the Tamiya Mammoth gearbox combo for a long time with a single Mag Mayhem and it worked very well. https://home.comcast.net/~kona_joe/gearbox1.jpg Stock TXT with 15tooth pinion = 34:1 Overall Crawl Ratio Stock TXT with 8tooth pinion = 63:1 Overall Crawl Ratio Mammoth Gearbox with 13tooth pinion = 91:1 Overall Crawl Ratio (2.69:1 Stock) Mammoth Gearbox with 8tooth pinion = 149:1 Overall Crawl Ratio (4.375:1 Modified) More info on the Mammoth gearbox My downloadable TXT/JUGG Ratio Spreadsheet "thumbsup" Now i'm running the 4:1 axle gears http://www.nercc.net/images/txtratios.JPG |
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Thanks for the info -- I did find you Mammoth transmission page prior to ordering the HPI gear redux box. I do not think those parts are available anymore... As I have stated.. I hope to determine the gear ration of the old F-150 ranger transmission.. I can almost bet it is better than the lousy 6.37 that the TXT-1 transmission offers due to a 65T or 70T gear that gets turned by the motor pinion! |
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