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Doddy's ST1 Budget Brushless conversion


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Hi all

Most will know I have a love for the Thunder Tiger MT4g3 , some might know that the MT4 is based off the old nitro Thunder Tiger ST1 which was released around 2006 as a truggy .. Some will know I'm not a lover of conversion but this one is going to be my first and only exception, well maybe let's see how I go on that one !.

So I have been looking for a winter project but didn't want to spend a lot, I had looked around for a while to find a cheap ST1 roller but they are getting hard to find, so when I saw one on the Modelsport website I jumped at it .. Thing is it was missing a few bits, centre diff and mounts,front diff and bumper .. Never mind I thought I'd get the bits easy enough as there still used for the g3 range .. Well then I spotted a s3 roller on the modelsport site which was super cheap and had the bits I wanted so I jumped at that, but the day after I had a phone call saying sorry I was beaten to it on the web site but they had something else !. After a chat the guy said he'd ring me back, so after about 1/2 an hour the phone goes and the guys says not only can he send me another st1 but he has a conversion kit as well !! .. At this moment I am waiting for the other roller and kit so as soon as there all in I'll get some pics started !!

But before we go into the build I have set a budget, plus I want to do the whole build from only UK sourced parts !! This should add to the fun, in this budget I need the following roller, conversion kit, electrics (ie motor,esc, servo) shell and all the little odd bits and bobs .. So I think I should be able to pull all this together for

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Hhmmm...uk sourced parts only.....new ones at that......for 200 squid......cant see it tbh...but I'm watching.......prove us all wrong!!!.....I reckon it'll work out jus over 200 imo......

 

I hope not as thats all thats in the budget but with a cheeky deal here and there along the way you never know my luck !!.. 

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So today roller 2 showed up so pic time it is 

 

This is roller one 

 

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Looks quite a clean and tidy one but like i said missing a few bits but did you see the servo now thats handy as a quick check says its a 11kg so that will save me getting one for a while and save the budget !!!!!

 

Now for roller 2 

 

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Now the sad thing is both rollers have no front bumper !!.. so after a quick cheeky call to Modelsport the guy there says he has one he can post out for free!!!!!!!  So thats me sorted 

 

 

Now off dismantle clean and inspect, Oh and i might have pulled a deal off on a shell ?? UK sourced and new as per the rules but free !! well sort of more like a trade on the unneeded parts from the build !! But more on that when it comes off

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I'll be watching this closely as the ST-1 is one of my favorit cars, it's a total blast for the money & a tank to boot, I love mine & it's constantly surprising me.

I'll be interested in how you sort the motor mount, I have a MTA G3 one here I was going to try to fit when the engine finally gives in.

Good luck with the build.

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I'll be watching this closely as the ST-1 is one of my favorit cars, it's a total blast for the money & a tank to boot, I love mine & it's constantly surprising me.

I'll be interested in how you sort the motor mount, I have a MTA G3 one here I was going to try to fit when the engine finally gives in.

Good luck with the build.

 

 

Thanks fella  :thumbsup:

 

The motor mount, i thought about the g3 mount but to be honest the way that it would mount would not make a nice layout IMO.. So instead i went for one of these 

 

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Simple but effective 

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So this is what they look like stripped in bits and in need of a good clean

 

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So after a good soak overnight, plenty of fairy up liquid and a good old toothbrush this is what you get 

 

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The cvd's where a little tricky at first to strip, but a little heat from the mini blow torch and a little gentle persuasion and they soon came apart.. Being rather rusty i gave them a good clean with the dremel and a wire brush attachment.. I then rubbed in some 3 in one oil and gently added some heat, now they look like new !! .. Bearings are pretty much packed with dirt and grease but are soaking as i type so with some love i should be able to bring enough back to life for what i need, just a good job they are all rubber sealed :thumbsup:

 

 

Next up rebuild these diffs 

Edited by mydoddy69
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All this ST-1 talk made me get mine from the shed an take it for a bash, started straight away as usual, pulled really well, makes me smile, such a basic cheap car yet fast & tough as hell.

So I take it you didn't see my question about nitro?

Would you build two? One BL one nitro?

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All this ST-1 talk made me get mine from the shed an take it for a bash, started straight away as usual, pulled really well, makes me smile, such a basic cheap car yet fast & tough as hell.

So I take it you didn't see my question about nitro?

Would you build two? One BL one nitro?

 

 

Sorry fella i did but i just forgot to answer it sorry 

 

Nitro is not really my thing had a few over the years but just prefer the ease and power of Brushless !!..

 

Truggy is finished, well i say finished its in need of a few bits to get it completed but the roller is all built up i'll get some pics up later when i get home !!!!  :thumbsup:

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So i said here are the next load of pics 

 

Front end built 

 

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Rear end built 

 

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Then came the middle and the little extra's 

 

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Now to get the esc tray at the rear i used the bracket in the kit, but just re drilled and tapped new holes in it to line up with the holes in the chassis for where i wanted the battery tray to sit not where the kit intended !!. 

 

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Few bits still to do but its getting there  :thumbsup:

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Correct on both accounts

 

The rx box is one from a hyper ss and the esc mount is from the trophy range but it's also used in the vorza.. Both i had sitting around doing nothing so thought why not put them to use !!!..  

 

So far i'm in like this 

 

Roller

Edited by mydoddy69
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What's wrong with the shell from the first car? Or you want no holes?

  

 

Can't run that it has holes for those nasty nitro bits !! plus a few cracks in it but its still useable   :yes: .. I got a radio box, exhaust and brake disc, servo top plate and a couple of fuel tanks all of which are no use to me.. If you want them you're more than welcome to them just cover postage  :thumbsup:

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Not got enough to make a nitro roller then? That'd certainly bump the budget!

 

I got enough to make half a roller just minus center and front diff, but to be honest i don't want to sell them as there my spares should anything break on the MT4 or this !!  :thumbsup:

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