scalemotorcars 1 Posted March 25, 2013 The goal is to build an old school full race SRB from old parts and up-sourced materials keeping the build cost to an absolute minimum. Lets start...... Below you'll find a new re-re gearbox with stock gears that tips the scales at 7.59 oz and next to it my reworked gearbox complete with suspension, u-joints and torsion bars at only 1.17 oz more. Large photo HERE Share this post Link to post Share on other sites
kontemax 1725 Posted March 25, 2013 Do you have a picture of the disassembled chopped gearbox please? What's the weight of the gear case only? Many thanks Max Share this post Link to post Share on other sites
scalemotorcars 1 Posted March 25, 2013 Sure but for some reason I cant upload the images. All are optimized jpg with small file size but I keep getting an error message. Ill try again tomorrow. Share this post Link to post Share on other sites
30YrsL8r 97 Posted March 25, 2013 I suppose you could remove even more weight by drilling/machining away some of the aluminium that surrounds the motor and use the motor itself to seal the enclosed section of the gearbox. Share this post Link to post Share on other sites
OldSchoolRunner 116 Posted March 25, 2013 A real stripped down version of the SRB now this should be interesting to see how much weight you can shave off! OSR Share this post Link to post Share on other sites
scalemotorcars 1 Posted March 25, 2013 More soon. Link to larger photo.HERE Share this post Link to post Share on other sites
bromvw 744 Posted March 25, 2013 i'll be interested to see just how durable the modified parts are . Those flanges are there for good reason ie strengh, but i could be wrong Share this post Link to post Share on other sites
scalemotorcars 1 Posted March 25, 2013 Its an old school mod we did back in the 80's. Never had one break on me but maybe I wasn't racing hard enough. Besides this build is more play then race. 1 Share this post Link to post Share on other sites
scalemotorcars 1 Posted April 30, 2013 I finally found a little shop time for the front suspension. The gold anodized aluminum tube is aircraft quality and nearly 2mm larger then stock. The triangular bracing is steel that will be chemically gun blued. Total weight for whats below is 2.14 oz. Next will be the arms with a larger diameter rod and bearings. Shocks are nearly done and use the same gold anodized tubing but Im not sure Ill keep them yet. More soon. Share this post Link to post Share on other sites
bromvw 744 Posted April 30, 2013 Quality work . You have excellent engineering skills sir . Share this post Link to post Share on other sites
SteveU30 1011 Posted April 30, 2013 Nice work, will be following this thread with interest! Share this post Link to post Share on other sites
OldSchoolRunner 116 Posted May 1, 2013 These mods are great! i have yet to see anyone ever do this. I hope that you are planning on running this thing? Nice work! OSR Share this post Link to post Share on other sites
scalemotorcars 1 Posted May 1, 2013 Thanks for the compliments everyone. @ OldSchoolRunner Its a runner and will be thoroughly tested. Share this post Link to post Share on other sites
Shodog 1835 Posted May 14, 2013 Those parts are going to break. The pot metal tamiya uses insnt very strong. Rather than reworking the metal, it would be lighter to search out some old RCH and MIP plastic parts Share this post Link to post Share on other sites
OldSchoolRunner 116 Posted May 14, 2013 Those parts are going to break. The pot metal tamiya uses insnt very strong. Rather than reworking the metal, it would be lighter to search out some old RCH and MIP plastic partsYa good luck with that... Once you find those old parts that are rare vintage hop-up you are really going to want to rub those too! Keep up the good work man I can't wait to see this thing running!OSR Share this post Link to post Share on other sites
scalemotorcars 1 Posted June 22, 2013 I fried the caps on my lathe so not much progress. The rear tower and shocks are going for sure. I had some chewed up drive gears so I turned them down into a custom belt drive. Just messing around with rare Scorcher parts, that should tick off a few guys.... Here's some mockup pics. Share this post Link to post Share on other sites
Badboy 94 Posted June 22, 2013 If you want to remove as much material as possible why not remove middle bar in the front? As the front are screwed onto the chassie you'll not need the middle bar! Badboy Share this post Link to post Share on other sites
Finman 69 Posted December 11, 2013 Sad to say just seen the parts on ebay. So doesn't look like we'll see this updated. Rich Share this post Link to post Share on other sites