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F-100 Boat Puller... the "Grave-Robber" You could call this another "twisted" build from Frankenstyle's laboratory. :roll: I've been told, by a few, that I needed a "street truck" to pull my boat trailer so I decided to go for it. I want something to match the boat, old-school with some modern tech'. I'm a "work with what you have" kind of guy, and I don't have much of a build budget, so I thought back to my bygone days of RC on-roading and remembered my very first car .... and Associated RC-12 that I bought in the 70's ... so I got out the shovel and dug this out of it's grave. http://i1315.photobucket.com/albums/...psveyiwok9.jpg The world of RC has changed LOTS since her debut. :lmao: I'd forgotten these were "Americanized", all SAE threads and heads! I had to get tools out of the garage to fit it. So to get into the modern world, I needed to set her up for new wheels, and adapt the old ball-diff to new hex-drive. Anyone who's messed with a ball-diff knows the hubs are different from one side to the other. Here's the original axle set-up... http://i1315.photobucket.com/albums/...psuzfzycdy.jpg ...and the ball-diff parts. http://i1315.photobucket.com/albums/...ps6sdt33ey.jpg To get to 12mm hexes, I took some aluminum tube (slightly loose on the old axle) and drilled the old hubs, and a set of Jato front hexes to fit the tube. Then JB epoxy'd the parts together to make adapter-hubs. I found a brass hose-barb fitting that fit the outside of the alum' tube and cut pieces to beef-up the hubs. The diff-side has to "compress" the diff to adjust, so it needed to be pretty strong. I swapped the old 1/4" thread in the diff end of the axle-tube with a 4mm for modern wheel-nuts and added one to the other side to hold the wheels on. http://i1315.photobucket.com/albums/...psk1u7uosh.jpg Then for the front, I just drilled another pair of hexes (and wheels) to accept the old Associated front bushings.... http://i1315.photobucket.com/albums/...psf594qcho.jpg ... and voila, new 1.9's mounted to the 30+ yr. old spindles. http://i1315.photobucket.com/albums/...psyakosbln.jpg Some of the nearby "Gasser" and "Funny Car" threads reminded me how much I like drag-racing, and I had some old Pro-line "Styrker II" tires (from the 80s) that are 2" wide, so I decided to go with a kind of "Pro-Street" style truck. With that in mind, and I also want it to match the boat and trailer, so I sniffed up some rear wheels that would fit the Strykers and match the leftover trailer wheels that I'm using for the front. I found some on ebay, again Jato parts, but they're 2.8s ... so it was time to work over the tires. They were 2.2's so I cut out the beads, and strettttched them over the wheels and ended up with this. http://i1315.photobucket.com/albums/...psck5dkp7r.jpg ...and more or less came up with this as a roller. http://i1315.photobucket.com/albums/...psenjwgpux.jpg The original set-up is just a motor with a pinion driving a spur on the axle ... waaaay too fast for trailer-pulling. So I dug up an old GRU that I built back in the 80's and proceeded to fit it into the chassis. I wanted to fit it all inside the body so I tried to keep it as narrow as possible. After a little cutting and milling ... http://i1315.photobucket.com/albums/...psare8lbpc.jpg and now she's a rolling chassis with modern wheels, LOTS of rear tire ( I can mount a set of small tires on the back too)and a power-plant."thumbsup" http://i1315.photobucket.com/albums/...psv16q6hwd.jpg I zip-tied some electrics on it and got her ready for some test-runs. http://i1315.photobucket.com/albums/...psefpjj1zh.jpg She's a bit of a handful to drive, :shock: like old trucks are. Still way too fast, but I've got lower gears on the way. So it was time to find a proper body, something era-correct to the boat's style, that will fit the chassis. The front-end is "adjustable", so to speak, but the rear-end is about as narrow as I could get it ... so after checking sizes, I found Vaterra's '68 Ford F-100, short-bed. http://i1315.photobucket.com/albums/...pshr7vcfsn.jpg PERFECT! And I owned a 1:1 back in the early 90's so since I'm using my first RC car and building another '68, this is kind of a nostalgia build for me too.8) So anyway, this is the gist of the project. http://i1315.photobucket.com/albums/...psjidstugj.jpg I have to admit, I'm starting to like this build more than I expected to. It needs a lot of refinement, I know .....We'll see where it goes. This could be fun .... stay tuned. ;-) |
Re: F-100 Boat Puller... the "Grave-Robber" Sub'ed. Like the look of the WIDE rear tires. __________________________ 1.9 Ibex tuber - The Merica ibex. R.I.P Dave Mirra |
Re: F-100 Boat Puller... the "Grave-Robber" [QUOTE=Bmxreeves;5464869]Sub'ed. Like the look of the WIDE rear tires. Thanks, I do too. :ror: And they hook-up pretty well too. I remember one of my early trips to the racetrack with my dad, we went into the pits and those tires seemed 5 feet wide. I was hooked on tread from that moment. I got the fever after driving her this afternoon and spent my birthday money to order a Leopard 3300kv combo, (the old XL-1 doesn't even have brakes :shock:) so it will definitely be getting more interesting .... soon. If I get some 3S, I may have to make a set of removable wheely bars. 8) |
Re: F-100 Boat Puller... the "Grave-Robber" [QUOTE=dr frankenstyle;5465103] Quote:
Go big or go home! __________________________ 1.9 Ibex tuber - The Merica ibex. R.I.P Dave Mirra |
Re: F-100 Boat Puller... the "Grave-Robber" How freaking cool is this! Yep - I remember the old ball riffs very well. Truck looks amazing, color to match the boat, very creative build. With direct drive it should be a blast to drive. |
Re: F-100 Boat Puller... the "Grave-Robber" Very nice work. The Ford is extremely creative. If it's still to fast could you get a slower turn motor 55 or something in that range? |
Re: F-100 Boat Puller... the "Grave-Robber" Yessir BMX', that's the law on the Quarter-Mile. :) Thanks Joe', It took a bit of head-scratchin' to decide what I wanted to make out of what I had. And it's a RIOT to drive!! A little tricky (like a couple of yours, I'm sure) but with a bit of practice..... HOOO YEAH! Thanks snapon', I've got the 3300kv coming for it, hopefully it'll have a slower bottom-end. I'm using the 30+ year-old Traxxas XL-1 esc right now. it's a first gen. electronic, made for speed, no brakes, just forward and reverse. I just got a 60T spur for it today, up from a 48T. Surprised, but it fit perfectly, even the same diff-balls. So for now the GRU is 4:1, cranking a 10T pinion into the 60T spur. I carried it down to the highway earlier today for some more test-runs. After a couple of passes and tightening the diff a little ..... Holy Staging-Lights Batman !!! This thing is gonna be FUN !! I had it carrying the front wheels for the first 6 to 14 inches on the first half-dozen launches, (when I kept her goin' straight ... wah wah) with a fresh 2S pack. :) Which is still too fast for trailering, but I have a 7T pinion coming too, with the brushless set-up maybe I can get the low-end slow enough.... and still slap a 3S in her and drag the wheelie-bars. Git 'n the house, ma! |
Re: F-100 Boat Puller... the "Grave-Robber" Sounds like a hell of a car. Light,WIDE tires. __________________________ 1.9 Ibex tuber - The Merica ibex. R.I.P Dave Mirra |
Re: F-100 Boat Puller... the "Grave-Robber" Thanks BMX', it's turnin' out to be a LOT more fun than I thought it would be. The more I monkey with it, the more it earns my interest. :) I can see an aluminum chassis... some nice wheelie-bars... black dye all of the plastic... and ...hmmm..... :) I can't wait to get the brushless set-up in her, and lower gears. Then get some 3S to try in the 'Robber (and in the Jet-boat too) and see what I can tear up. |
Re: F-100 Boat Puller... the "Grave-Robber" Wheelies 4 days is what I'm seein! __________________________ 1.9 Ibex tuber - The Merica ibex. R.I.P Dave Mirra |
Re: F-100 Boat Puller... the "Grave-Robber" [QUOTE=Bmxreeves;5465795]Wheelies 4 days is what I'm seein! :lmao:;-) Easy now, hopefully I can get her to "dual-purpose", Pro AND Street. I want it to pull my boat trailer (without leaving the boat on the road :shock:) and then, trade the hitch for the wheelie-bars, and with an easy gear and batt'ry swap, do some nice launches off -the-line. "thumbsup" That and to look good WITH the boat too. :roll: |
Re: F-100 Boat Puller... the "Grave-Robber" Dude, just drag race with they boat, the hitch is a wheelie bar... Lmao __________________________ 1.9 Ibex tuber - The Merica ibex. R.I.P Dave Mirra |
Re: F-100 Boat Puller... the "Grave-Robber" [QUOTE=Bmxreeves;5465812]Dude, just drag race with they boat, the hitch is a wheelie bar... Lmao :lmao::lmao::lmao: That is HIGH-larious!!! That one's worthy of a "CAR-Toon"! Me 'n' my buddy will get a BIG laugh out of that one tomorrow. |
Re: F-100 Boat Puller... the "Grave-Robber" There yah go! __________________________ 1.9 Ibex tuber - The Merica ibex. R.I.P Dave Mirra |
Re: F-100 Boat Puller... the "Grave-Robber" Well, after some practice and a recharge, I had her carryin' the front-end for 2-3 feet.... and then I put the 7t pinion in (it showed up yesterday) and shot my hole-shots in the hole. :( And it's still too fast for trailerin', but the Leopard should be here by the weekend, and a new round of experiments will begin. I found some spec's on the current motor (hey, it's been over 25 years) and re-learned that it's a Trinity, Speedworks, Monster Mash 2... 16-turn, 40,000 rpm, reverse rotation (for the GRU) motor. They were built as 1/2 of a pair meant as an upgrade for a Clodbuster. So it's got a little more under the hood than I realized. :) I have more gears on the way to play with, so maybe with them and/or new electricals, I can get her slow enough to pull, and it's pretty easy to swap her back to starting-line status. I gotta get started on the body too .... dang, I'm gettin' old and slow. |
Re: F-100 Boat Puller... the "Grave-Robber" Haha. I would keep it the same gearing so you could go drag racing. Then just be easy on the throttle when your towing. __________________________ 1.9 Ibex tuber - The Merica ibex. R.I.P Dave Mirra |
Re: F-100 Boat Puller... the "Grave-Robber" Quote:
That said... the Leopard set arrived yesterday and all I can say is ...MEEOWOW !! :shock: It's JUST what I wanted! http://i1315.photobucket.com/albums/...pskdmbrufc.jpg Now, with the low gears, it's way more drivable for towing ... good slow speed, brakes and reverse. Then I can slip the 10/60 gears back in her and it'll flip over, every time (even with a 2S at 7.1v), if you lay into it too hard off the line. "thumbsup" So now I can get "both worlds". 8) Since she's proven to be a worthy project, I picked up a piece of .063 aluminum and worked up a first mock-up of a new chassis ... http://i1315.photobucket.com/albums/...psik6dx3it.jpg it needs some trimming here and there, but I figure the general layout will give me room to strategically locate all of the electrics... and a dual 3S set-up when I want it. http://i1315.photobucket.com/albums/...psea6ly0xt.jpg And it will close up the lower sides, and give me a solid tail area to set-up mounts for a hitch and removable wheelie-bars. http://i1315.photobucket.com/albums/...psz7akmhji.jpg I also got started on the body... http://i1315.photobucket.com/albums/...ps52cgdezi.jpg ...first round masking, ready for the "Mazda" purple...;-)... http://i1315.photobucket.com/albums/...psbm4y5h8i.jpg now if the weather will just cooperate. |
Re: F-100 Boat Puller... the "Grave-Robber" Any wheelies yet? __________________________ 1.9 Ibex tuber - The Merica ibex. R.I.P Dave Mirra |
Re: F-100 Boat Puller... the "Grave-Robber" [QUOTE=Bmxreeves;5469141]Any wheelies yet? EVERY time ! (with the 10t pinion) "thumbsup" That is... IF you're easy with the throttle, otherwise she'll flip-over onto her back every time. :shock::roll: |
Re: F-100 Boat Puller... the "Grave-Robber" To be honest I'm Not suprised. I want to see a video of you drag racing with the boat... Lmao __________________________ 1.9 Ibex tuber - The Merica ibex. R.I.P Dave Mirra |
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