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New Life for an Old Telluride

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New Life for an Old Telluride

Old 01-05-2023, 05:16 AM
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Default New Life for (2) Old Tellurides!

In a never ending quest to build something trail worthy out of a random RC vehicle for no apparent reason, I came across this gem on FB... I know it's far more monster truck than crawler, but I think with a few mods this poor redheaded stepchild of the Slash 4x4 can go down the trail pretty good. Let's find out.

So, an hour drive and a reasonable lightening of the wallet later and I had myself a Telly with some honkin' 2.8 wheels but mostly intact. ..came with a Slash chassis, diffs, and suspension. 2 wheelbases and 2 widths - options are good! Although when I got home, I realized it was actually another short WB chassis, but it did have Slash width suspension arms. Interesting.



This is not my first rodeo with the Telluride, I bought a roller and built it up with a clear body about 8 years ago, but I sold it before I ever put power to it. I do that a lot, I'm not sure why.


First thing I always do when buying something well used is strip it all the way down to the hardware and give it a bath. This one was a piece, owned by someone who really wasn't into RC per-se and used a few hardware bits here and there. Thankfully, between both chassis I have enough parts for a decent rebuild. All the gears got cleaned and re-greased, all the bearings cleaned and re-lubed...rebuilding used RC's is one of my favorite things to do.


Thankfully, the Telly came with diff lockers already installed and the gears looked new so it's all good there. Out back I used the spare front shock tower ilo the rear one so both front and rear used the same size shocks, about 90mm. Well, what do you know? I have a few of those laying around...so I used some Icons ilo the stockers since I have a ton of springs for them. Built a while ago with some Traxxas x-rings IIRC, they are smooth and surprisingly leak free.


Up front, much of the same. The truck came with the aluminum steering bits, so I've got that going for me which is nice. Between the 2 trucks I fudged up all the turnbuckles though they are slightly different up front side to side.


Fudged with the steering a bit and got a pretty good angle for an IS truck. I could probably go a bit further, but I'm worried about the joints up front. Should be good enough to get rolling, I'll wait and see how it does.


And finally, boom. The chassis is actually pretty cool to mess with, but the body is just hideous. That's what turned me off to the first one, even with custom paint. So I dug around and found this little Danchee Ridgerock body i picked up a while ago for $20 which is almost a perfect fit. Now it's a rock buggy! Kinda what I had in mind when I picked up the chassis since it's IS all the way around, and it basically dropped right on. Wish all of my wacky ideas worked out so easily. The decals are ON there, not sure what they are, but not your normal vinyl decal. Not sure what I'm going to do there yet, though the colors of the body are spot on for me. I do have to use 2.2/3.0 wheels. Yuk. I thought I could get away with some high offset 2.2's but I can't get the steering angle with them. I'll trade a bit less scale wheel for more steering any day - I'm a pragmatic. Threw on some old SC wheels I had just to get it on 4 wheels but I've got another set coming.


I think the WB and width (280 and 280mm) work out pretty much spot on. Good to know I can wide track it if needed.


Wouldn't be any kind of crawler without a flex shot. It's got about 2" travel front and 2.5" rear with the 90mm shocks. Not bad at all.


And the HCG chassis has 2.5" of breakover clearance - again, not bad!


Thought it was a pretty worthy project and ordered a few parts for it this morning. Both for trail duty and some go fast parts as it'll make a pretty decent little basher eventually... but before then, it's going to get a trail workout. There are a few issues to work out - gearing, weight balance, etc. but I've got some ideas.

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Old 01-06-2023, 02:30 PM
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Got the electronics sorted out... I made a foam cradle to hold my 3S packs and keep them towards the front of the chassis. Modified the radio box to hold the ESC instead as I wanted it up front for weight balance. Also I snuck in a few lead bits under the ESC tray adding about .75g...not much, but every bit helps. Just trying to get as much weight forward as I can to offset the motor being out back.


Holmes Crawlmaster is my go to motor, no exception here! I've got it paired with a 3:1 reduction and a 20t pinion for a gear ratio of 35.43:1 - not as low as I would like, but it's in the ballpark for a trail rig...the stock truck came with a 19:1 ratio, so that's a decent improvement. The motor is sitting on the chassis, I'd have to clearance a bit to go any lower, I'll wait and see how it does before modding any more. It still has the plastic center shaft though, I forgot to order the aluminum one. It's on the list! I'm waiting on a gear cover, it's the only piece missing from the chassis and then its test drive time!
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Old 01-06-2023, 06:19 PM
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Nice! Tellurides are great, I'm still enjoying mine:



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Old 01-07-2023, 07:19 AM
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^^ Very nice, don't see too many around. I'm not sure mine is much of a Telluride anymore, but I'm enjoying the transformation!

Killing time while waiting for parts. Finally got all the decals off, it looks 100% better imo.


After I took the pics, I was looking at the roof and I'm not sure why it was blue up front... odd. I flipped it and now the colors line up much better.


Messed with the shocks, I've set them up for a dual rate setup. The small spring handles most of the travel somewhat softly and when its compressed, it bangs into the red springs which are much harder. So the suspension is pretty soft until the chassis is about to bottom out, then it gets substantially harder. Maybe not the best setup for trail duty, not sure (Great for bashing though.) I think a softer single spring and swaybars might be a better way to go.


And late last night the UPS fairy dropped off some goodies! Going to be a good day tomorrow!

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Old 01-07-2023, 09:53 AM
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That looks great. I'm thinking yours will handle better and take more abuse than any solid axle platform.
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Old 01-08-2023, 09:10 AM
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Boy, that makes a difference! Took a chance on some RC4WD beadlocks and tall-ish Proline tires, wasn't sure if the beads would work out but they went together pretty easily. They are not crawler compound, but they feel pretty decent. I trimmed the foams a bit so they'd be softer.


'Pede light bar up front


And taillights in the back. Really don't like the bumper - it kind of sticks out there. Not sure what I want to do with it yet since it has the lights and swaybar mount on it.



There's a gaping hole in the body too, not sure what I want to do there yet.
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Old 01-10-2023, 07:25 AM
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Finally it was test drive time. Wow. All I can say, I am shocked at how well this drives...who knew? Didn't even break a sweat on my usual test spots in the backyard, the dual springs seemed to work out really well, the suspension is pretty active to a point and then stiffens up - it just kinda floats along. Gearing was fine with a 20t pinion, low speed resolution was excellent. Tires need some break in, but they were better than I expected even in the cold which PL tires never like.


Breakover is great, my solid axle trucks get hung up here constantly. Breezed right over.



The hard springs will compress under weight, but they do a good job of keeping the diffs up and out of the way.


Sidehill king...



Just had one issue - the truck was getting kinda loud so I shut down and checked it out. The bearing in the GRU worked its way out and was up against the pinion. I just added some 3mm shims behind the pinion and it's nice and smooth again. Can't wait to get it out on the trail and give it a real test.
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Old 01-19-2023, 05:28 PM
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That's pretty surprising performance from that platform.
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Old 01-21-2023, 11:15 AM
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It is. I know the common consensus is that an IS crawler isn't capable.... I think that's BS. Same things apply - weight balance, grip, gearing, COG - I think if you address all of those, you can get some decent performance.

Prepare to see double...


Picked up another roller, this one is a Stampede 4x4. Figured it had some good parts on it, and could raid the deeper ratio diffs and what not for the crawler then use the leftovers for a backyard basher. Win/win! So I ordered a few odds and ends and when it all came in I started tearing it all down.


But not all went to plan. At all. Picked up some steel CVD's on the cheap since I figured I'd have to cut them down for the narrower Telluride suspension. Which I did....and it took off the knurled part inside and made them useless. Ooops. And it turns out the Stampede I got had the same diff gears I already had for some reason, so pretty much my entire plan was shot to hell.


After taking a break and noodling on it a bit, I decided to swap over the entire suspension from the new roller over to the crawler. Wasn't crazy about adding extra width, but I have the CVD's and arms, so may was well put them to good use.


Pretty easy swap, I cleaned them up, lubed the CVD's and bearings on everything bolted right on. I swapped the RC4WD hubs for the narrower ones, so my overall track width is about +20mm. I can live with that.


I was at 49.2/50.8 front/rear balance before doing the swap, so I played around with the turnbuckles a bit. I added aluminum ones out back and went with both steel up front. I didn't measure, but I should be really, really close to a 50/50 balance - not bad at all for a rear motor platform.



The aluminum arms and steel CVD's give it much more heft down low, it feels really nice. Just need some rear light buckets and it's ready to go, I can't wait to get it out and try it on a trail.
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Old 01-21-2023, 11:23 AM
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Who's hungry for leftovers? I started combing through the debris of 2.5 rolling chassis and coming up with the best parts for a go-fast version. While working on the crawler, all I could think of was how much fun it would be to bash around with it. Lots of suspension, a wide track, smallish wheels and a somewhat stubby wheelbase. Should be fun! A nice little buggy to bash around the parking lot and run down any batteries I have left after trail running... I could have just re-purposed the crawler after I was done with it, but couldn't help myself and started building a twin. Picked up another body and assembled the diffs and bulkheads with the best of the parts. I kept it in the family this time with TRX4 shocks and again used a front shock tower in back to clear under the body.



Dyed the chassis black and got the electronics in. Just a brushed silver can on 2S to get things sorted, I'll look for a bit more power later, but just to get things sorted, a silver can will be fine.


Proline vintage wheels and TSL tires. Love the look, think it came together perfectly.



Twins!!


I need to get some velcro for the body to mount it, so I test drove it sans body. Way fun! It has the same travel and soft-ish suspension as the crawler so it's like a mini E-maxx - just gobbles up everything underneath it.


Whoops.... Forgot something apparently.


Definitely needed some suspension work, it was in the ballpark but a bit soft, both with the springs and oil. I found some bigger AE springs that felt pretty good, so on they went. drained the oil and went with 50wt all around and we'll see how it does. I inboarded the shocks as much as possible, and this truck has some stupid suspension travel - more than many of my crawlers. It can soak up three tires under a wheel and just about keep the other three on the ground (it has the travel, the springs are just a bit stiff). Impressive, it really is a little E-maxx.



Just need to pick up some velcro this weekend to get the body mounted, get off those horrid Danchee decals and it's ready to go!
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Old 01-28-2023, 05:12 AM
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Originally Posted by St. George View Post
That looks great. I'm thinking yours will handle better and take more abuse than any solid axle platform.
I don't know about that... performance I'm not worried about, durability though might be an issue, especially the CVD's. I'll find out today, it's trail test day! We'll see how those CVD's hold up.
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Old 01-29-2023, 06:46 AM
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Time for a few updates... Starting with the Basher Telluride.

Un-decalled the body, cut out for the shocks and got it mounted with some velcro.



I think I need to add some paint or something to tell them apart.


And a few running shots. This thing is a hoot - drives like a short Slash....which is exactly what it is! Very nimble, a ton of suspension, and looks good while doing it. The silvercan on 2S had plenty of speed for my backyard, but after 15 minutes of running, I could smell the motor cooking. I consider the chassis sorted, time for a brushless upgrade!





Traxxas....you need to make one of these. What a riot!

Now that the bashing is out of the system, how about the Telluride crawler?
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Old 01-29-2023, 07:10 AM
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And back to the Crawler...

Been chipping a bit at this one... finally figured something out with the rear lights and bumper. I'd like some sort of bumper back here, but this will do for now.


And did a shock change - front TRX4 shocks and rear AE Maxx shocks laid down as much as possible. After playing with the basher, I really liked the standard springs/GTS shock combo, it was far more plush than the Axial junk I had on here so I copied it. I added the longer Associated shocks out back for a bit more travel.


And a few trail run pics...I made some video, but apparently I cannot drive coherently and film at the same time. Not sure if I'll post it up or what.. In any case, this independent suspension basher crawls as well as anything I've got. It's not a comp crawler of course, but it is for sure better than an out of the box solid axle rig. I ran into a guy with a new bone stock Capra 4WS RTR and we ran a few lines for a while. While he certainly had much more steering than I did, that was his only benefit. I had a much, much lower COG and wider stance, with the same center clearance.


Wrenching on the test rock...it has a nice flat off to the left - perfect for tuning and a great spot to test your truck. I spend a lot of time here.... I played with camber a bit and ended up swapping the springs front to rear.


Stable, predictable, and capable. Really, I'm shocked at how well this got around - went over all my test areas with flying colors.


Ran for about 45 minutes and decided to switch over to the C-maxx... but definitely got some ideas for the next run. Thinking a rear swaybar is in order, it will help on off camber climbs. The tires were surprisingly good for SC tires, but they are not crawler tires for sure... there were a couple of spots where I could see I was lacking grip. Hmm... Also, the rear CVD's made some cracking sounds, but help up fine. Kind of expected that. Not a fan of the wider Slash suspension, it was great on side hills, but it just looks too wide to my eyes. Not sure what I want to do there yet.

On a side note, I assembled some of my leftover parts and a test mule of sorts... kinda went mediaeval on it! Bandit arms with a monoshock setup... interesting. Not sure if I'll use it, but there's some interesting potential here.
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Old 01-29-2023, 09:55 AM
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haven't bothered with video in years... went through the footage and found a few that came out ok, and assembled them together. Can't drive and record to save my life! Camera has practically no sound in the case, huh. Well, now I know!

https://youtu.be/m0NMhtfcAcc

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Old 01-31-2023, 05:15 AM
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Sometimes you have a Happy Accident!


While messing around making some changes after the intial test run, I swapped the Telluride arms back on just goofing around and found the CVD's compress enough to work with them. Excellent! Lost roughly an inch of width and looks much, much better to my eyes. The wider stance from the slash arms hurt both steering and clearance, this should help for sure. Not sure why I never tried in the first place.


The suspension was very flexy - great on the trail, but a little too much so when on the rocks. It tended to heel back on 1 arm when climbing off camber. So I decided to up the shock oil to 40wt all around, put the TRX shocks back on the back and added some swaybars front and rear. Light up front, medium out back. I'll take a few along next time for tuning purposes. Also moved the shocks out a bit out back for a little more leverage.



Still gets 2 tires worth of flex, and feels much more controlled. May help, may hurt, will find out.


Also swapped the tires...I boiled off the old Axial Baja's from the Yeti Score and got them mounted up - they mounted much harder than the Prolines. First time for everything I guess. Not sure what the compound is (R40 maybe?) but hey are much softer then the Prolines... And they make a cool screeching sound like a 1:1 tire, that's always fun.


Also replaced the plastic servo horn with an aluminum one since it skipped a spline or two while wheeling. Ordered Stampede gears for rear UD and also a center diff (!)....Looking for ways to keep the nose down on climbs, it's good to have options.
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