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fyrstormer's Avatar
"Precision Basher"
fyrstormer - 11.07.16, 10:54 am Post #1: | Reply With Quote
ALRIGHT ALRIGHT I GOT A SHORT COURSE TRUCK, JEEZ. Three years into this hobby and I finally ran out of excuses to avoid it.

Although I should clarify, when I say "I got a short course truck", what I mean is I bought an RTR and then replaced almost all the parts. I'm not kidding; the only stock parts left are the hubs, caster blocks, wheel hexes, front bulkhead, and two of the internal transmission gears. If I had it to do over again, I'd have just built it from parts, but as it happened I had no idea how many upgrades I would end up making by the time I was finished. I'm sure someone will come along and say "that's what you get for buying a Slash", and yeah, that *is* what I get. It came out well, though.



The Slash I started with was the F-150 Raptor version. Obviously, the body you see above is not the original body, but a Pro-Line F-150 Raptor with the front and rear "bumpers" trimmed to fit around the real chassis-mounted bumpers. To be honest, Pro-Line's F-150 Raptor body was the inspiration for this entire vehicle; even if it isn't "true scale" as advertised, I liked the way it looked so much I built a vehicle to put it on.



As mentioned, the Pro-Line body was trimmed to work with the chassis-mounted bumpers, which were replaced with RPM parts. Making it fit in the front involved cutting off the front skirt detail and trimming along the underside of the grille detail to provide enough clearance for the front bumper to fit.



Making the body fit in the rear involved cutting off the rear bumper detail, and then hollowing out a space for the rear bumper support to pass through. It would've been nice if I hadn't had to cut that big hole in the tailgate, but the RPM rear bumper obscures it enough that it still looks good to me.



The Slash came with the stock chassis, and after a single short run it was painfully obvious that the center of gravity was way too high. So I got the LCG chassis, which helped a lot, and I got a set of RPM adjustable body mounts so I could lower the body a bit. Unfortunately they weren't designed for use with the F-150 body that the truck came with, but I eventually figured out how to get the rear body mount to sit low enough to accommodate the flat "pickup-truck bed" that the original Slash body doesn't have. (no amazing feat of engineering involved; I just attached the rear mount lower than intended.) Conveniently, the Pro-Line body didn't require any readjustment of the body mounts.



I have several other vehicles that run ProTrac-offset wheels, so I decided to get the ProTrac suspension kit for the Slash too. As with my other Traxxas vehicles, the shocks use the stock internals with factory-upgrade TiN-coated shafts, and the bodies are aluminum made by STRC. I can't emphasize enough just how much better the stock shocks work with the STRC aluminum bodies; they're smooth like butter now, and have been on every vehicle I've installed them on. The stock progressive-rate springs were replaced with linear springs from the Telluride, which uses the same rear springs as the 4Pede but softer front springs which better-suits the rear weight bias of the Slash. The hubs and caster blocks are stock, but if I have any problems with the stock ones, I have a set of RPM hubs and STRC aluminum caster blocks that I can install in the future. I could've installed them immediately, but I ran out of motivation after getting the Pro-Line body to fit, because that was my ultimate goal anyway.



The awful servo-mounted servo-saver was replaced with the bellcrank-integrated servo-saver, and the servo was replaced with a Hitec HS-7955TG, which is overkill for this truck but it's my favorite steering servo, and I'll never break it, not on this truck. Heck, the 7955TG in my Wraith has no servo saver at all, and titanium steering links, and it's been run completely underwater many times, and it still works perfectly. Why change a formula that works?



Because I'm using a non-Traxxas ESC, I had to make a flat plate to attach the ESC to. A spare chunk of Lexan, trimmed to the right size and painted black on the underside to hide dirt buildup, took care of that. The ESC is nothing special, a Dynamite DYNS2210 that I've used on many other brushed vehicles, but it's a good reliable unit and I've only ever had 1 out of 8 go bad.

That's right, I said it's a brushed ESC. Why? Well...



There was something I wanted to try. I've never seen a brushed short-course truck that wasn't anemic, so I decided to see if I could make one. This is a Holmes Hobbies TorqueMaster Pro 550 motor, with a custom-wound 11t armature, silver brushes, and endbell cooling fan added by Yours Truly to help the commutator deal with the heat buildup from the LiPo battery's massive amperage. Yep, I said it's a 550 motor. Maybe there used to be high-speed rebuildable 550 motors available back in the day, I dunno, but I couldn't find any when I went looking, so I got Holmes to make me one. It's a great motor, it moves this truck with no problem, and easily pops wheelies when the tires can get enough traction. (the Badlands SC tires are great off-road, but don't have much contacting surface to provide traction on pavement.)

The stock gearbox case is long gone, replaced with a RPM gearbox case. The internals are stock, with the exception of the diff cup, which is an O-ring sealed unit made by Fast Lane Machining, and is filled with 200k oil. It's a great diff cup, I recommend it to anyone who wishes their Slash had a sealed diff.



So there's my take on the truck that launched a whole new racing class back in the day. It makes a good companion for my Losi Baja Rey.
Check out "Fyrstormer's Garage" in the General RC forum.
Kingy's Avatar
"ae fanboy"
Kingy - 11.07.16, 11:52 am Post #2: | Reply With Quote
that's what you get for buying a Slash

Had to be done, haha.

Slash, scx10, tt01... All vehicles that can easily be built using nothing but aftermarket.

Parts list looks good though. Interesting choice of motor, that's for sure.
Associated [RC10B5M - RC10T4.1 FT - RC10B4.1 WORLD'S - RC10B44.2 - RC8T CE-E - RC8BE]
Durango [DESC210R] Ofna [NEXX10SC] Serpent [S411] RC4WD [Bully - Bully2]
Gmade [Sawback] Axial [Scx10 - Wraith - Yeti] Eagle Racing [TT-01 V.3] MST [FXX-D]
KristofferR's Avatar
"Experienced user"
KristofferR - 11.07.16, 12:02 pm Post #3: | Reply With Quote
Nice build and very well written IMHO. The body does really look great.

Will you eventually replace the last Traxxas items "just because"?
Edgery on Soundcloud
2x Traxxas 1/16 MERV, 2x p4de VXL
fyrstormer's Avatar
"Precision Basher"
fyrstormer - 11.07.16, 12:47 pm Post #4: | Reply With Quote
Nah. The remaining stock parts are still there because they work fine.
Check out "Fyrstormer's Garage" in the General RC forum.
Griffin495's Avatar
"Experienced user"
Griffin495 - 11.10.16, 7:14 am Post #5: | Reply With Quote
That is a great looking Slash. Like the body.
So many RCs, so little time...
fyrstormer's Avatar
"Precision Basher"
fyrstormer - 11.10.16, 7:43 am Post #6: | Reply With Quote
Thanks!
Check out "Fyrstormer's Garage" in the General RC forum.
smirk-racing's Avatar
"Experienced user"
smirk-racing - 11.10.16, 12:36 pm Post #7: | Reply With Quote
fyrstormer said
Thanks!
Do your vehicles stay so beautiful for very long? Do you run them pretty hard or are you conservative in your driving?

I have put energy into a few bodies but they get trashed, so now I mostly bash with pre-painted bodies and save the nicest ones for the garage.

But the rims, various plastic components, bumpers, underside of chassis, etc all get pretty beaten up, of course.
fyrstormer's Avatar
"Precision Basher"
fyrstormer - 11.10.16, 2:30 pm Post #8: | Reply With Quote
Depends on the vehicle. I don't do crazy jumps and flips, so I can usually get a year or two out of a truck body before it needs to be replaced. I generally try to make sure the impact points are metal or hard plastic, and I adjust my driving for each vehicle to account for its durability. The nice thing about this Pro-Line body is it's pre-painted; all I had to do was trim it to fit and cut the mounting holes.
Check out "Fyrstormer's Garage" in the General RC forum.
duhjun's Avatar
"Experienced user"
duhjun - 11.15.16, 2:16 pm Post #9: | Reply With Quote
That's cool that you got a custom motor from HH, and adds uniqueness to the build.

Kind of an amusing point, but I remember noticing that you and I both got into the hobby about the same time, and it seems like we both have been on very similar tracks ever since. Not believing I ever would, I bought a Slash 2WD LCG pre-roller chassis, back in mid spring, and just recently got it built, using a Slash Gordini edition body. Similarly, the time finally came where I was inspired to get a Slash. I've got a Slash 4x4 HCG chassis for my next project, which will be a Slash MT, inspired by something I saw on the Traxxas forums. Have you done one of those yet?
A.K.A. rcdabbler on other social media platforms, and johnnyluv on rccrawler forums.
fyrstormer's Avatar
"Precision Basher"
fyrstormer - 11.15.16, 2:44 pm Post #10: | Reply With Quote
Nah, I already have a T-Maxx, a 4Pede, and a couple Tellurides; I don't think a Slash MT would offer anything those vehicles don't. I didn't have anything resembling a short-course truck in my collection until I got the Baja Rey; most of my collection consists of touring/rally cars and monster trucks.
Check out "Fyrstormer's Garage" in the General RC forum.
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