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Tamiya and other R/C vehicles (not just for Christmas)
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rockhopper70Full Member
Great thread this. Back in the day I had a sand buggy that was great fun, albeit very limited battery life so I have been following this. The inevitable drawback seems to be the grasshopper but as an interim, I bought some extra batteries and a fast charger for my sons Maverick iON RTR we got him a couple of years ago. For a £69 all in kit, it’s rather a lot of fun and doesn’t half shift (all relative I know). If anyone is looking for a starter set, or for a gift, I’d certainly recommend one.
He wants me to get one now for street racing but they seem to be OOS mostly.
Maybe as well..clubbyFull Member@neb welcome to the party!
Really enjoying my racing fighter. Same chassis as yours but a different shell.
Had loads of good tips from here. JIS drivers are big help. I got a set from amazon for 12 quid. Bearing kit for sure and IMO definitely front tyres (see my post from earlier today). I found the front springs a bit soft as well, if you don’t have stiffer springs coming for the front then ignore the build sheet and add all three preload collars.Most intimidating part for me was the body shell. In the end it turned out great. Take your time cutting it out and paint in thin layers. My body took 4 coats in the end.
RustySpannerFull Memberweeksy
Subscriber
Can I get some more precise steering arms for the Grasshopper?
Probably, but it might be something else, like the servo saver.
Try and avoid those nice, blue, expensive alloy bits. They just transfer the force from something cheap and easy to replace to something expensive
Check all the screws in the steering haven’t come loose. And honestly, check the servo saver. The crappy Tamiya one’s have a habit of going pop.
Don’t ask me how I know. 🙂NebFull Member@stumpy01 and @clubby thanks for the advice. I’ve found a hobby set of 64 in 1 screwdriver+bits for £15 it does name the two JIS bits in there so should be good. The bearings have already arrived.
I’m a bit apprehensive about the painting, but at the end of the day it’s going to be scratched and battered within a few weeks so I don’t suppose it really matters.
Reading the tamiya forum, looks like you can pick up the shock shafts to use the various pistons with different holes in? It also comes with oil, 4 springs, spare caps and the red orings. Here for example
No idea if the springs/oil is suitable, but I love fiddling with suspension so I’ll probably give it a go at some point.
The guy on the tamiya forum you linked to previously has loads of good info, thanks for that. It also dawned on me who he is! Very knowledgeable about MTBs too…
Harry_the_SpiderFull MemberAfter my experiences with the cartwheeling Grasshopper I’ve been planning my paint scheme for the Mad Bull that I’ll get as soon as they are back on stock. Everything that could come in contact with the ground will stay white, the rest is getting painted.
clubbyFull MemberEverything that could come in contact with the ground will stay white, the rest is getting painted.
Sounds like it’s all staying white!
flangeFree MemberSelling my Sakura D3 RWD drift chassis if anyone is interested. Will require electronics but can be supplied with wheels and shell if required
tthewFull MemberJust for interest, and not that I’m at all tempted or anything, the essential differences between a Grasshopper and a Hornet is a differential in the gearbox and a polycarbonate body rather than the solid plastic one? I seem to remember that was right back in the day.
edit – and a 540 motor as standard.
ChunkyMTBFree MemberI think it comes with oil rear shocks, rather than just friction dampers – which the Grasshopper has.
Harry_the_SpiderFull MemberHowes are doing the Hornet Bundle for less than the Grasshopper one at the moment should you be tempted.
Having not tried anything else I can’t see what the handling problems are supposed to be with the Grasshopper once you’ve got used to it. Admittedly it is a different beast with the 540 and understeers wildly at the higher speed that the bigger motor brings. I assume that the Hornet would too.
tthewFull MemberAdmittedly it is a different beast with the 540 and understeers wildly at the higher speed that the bigger motor brings. I assume that the Hornet would too.
If I’m right about the diff. then understeer might not be such a problem. If it works like a proper car the faster wheel gets more power, which being the outside wheel would tend to push it round. Could be wrong about that though, the one I had when I was young was basically a Grasshopper with a Lancia body and no differential.
That Howes deal was the one I saw but I’m not sure, I’ve no young kids at home to join in with me. I think the novelty of ragging it round the garden on my own would wear off quickly.
Harry_the_SpiderFull MemberIt won’t, and you can come on Rusty & Harry’s Grand Day Out when this mess is over.
Grasshopper has a dif’ too. The bigger motor pushes it in a straight line with understeer, then it snaps into a spin. I’m going to try the 540 again when I can get to a park and run it on short grass where the front wheels have a bit more bite.
wardeeFree MemberHaving not tried anything else I can’t see what the handling problems are supposed to be with the Grasshopper
Imagine you were a downhill mountain biker and that the only mountain bike you had ever tried was an entry level model made by Raleigh over 30 years ago. Every kid wanted a Raleigh in the 80’s but they were always a bit rubbish and are in no way comparable to a more modern machine. This is the RC car equivalent.
You buy a Tamiya Hornet or Grasshopper for nostalgia, and because they are still quite fun. You don’t buy them for performance.
If you are using modern lipo batteries and electronics, then these will be lighter than the original nicad cells that the cars were designed for so the weight distribution will be wrong and will reduce front end grip. You can add lead weight to help with the power understeer, although that was always a feature of the cars.
Harry_the_SpiderFull MemberYou buy a Tamiya Hornet or Grasshopper for nostalgia
I know. I did.
pictonroadFull MemberIf I’m right about the diff. then understeer might not be such a problem. If it works like a proper car the faster wheel gets more power, which being the outside wheel would tend to push it round. Could be wrong about that though,
That’s not really how differentials work.
I had a re-issue lunchbox, the wayward handling was part of the charm. The self steering in reverse became somewhat of a challenge as it all got a bit ‘loose’. 😬
TroutWrestlerFree MemberTo tighten up your Grasshopper steering try removing the plate that holds the lower (only!) wishbones in, and putting a bit of heatshrink on the ends of the wishbones where they touch the chassis. The right amount will remove slop without being too tight.
My Rising fighter had an annoying rattle and this sorted that, and snugged everything up at the front too.
Paul-BFull MemberAdded a Torque Tuned 540 to my Grasshopper at the weekend with hilarious results!
Yeah they’re a bit crap but they are great fun and cheap to fix when you inevitably smash them up.
jonziFree MemberThe prop shaft in the Terra scorcher might as well be made out of spaghetti
Maiden voyage and I ploughed it in to a kerb, and the prop shaft bent.
Any one know if there is a decent after market one that is stronger than wet spaghetti?
mogrimFull Memberthe one I had when I was young was basically a Grasshopper with a Lancia body and no differential.
The Rough Rider (and similar) didn’t have a differential, but the original Grasshopper definitely did.
flip456Free MemberLoving this thread so much that I’ve dug my 33 year old grasshopper out of the loft.
I’m thinking of buying new transmitter/receiver, esc, battery, charger etc and making a bit if a project for me and my eldest (11 yr old).
Are the budget electronics ok or is it worth spending a bit more?
Will I need to replace the old servo? My plan is to get this one up and running and then buy another kit at a later date and move the electronics over. My old grasshopper is fairly tired but is fitted with bearings and bigger motor, so it will serve as a good learner for now but I suspect the plastic will have deteriorated and won’t hold up to many crashes. Hence the new kit 😉Andy_KFull MemberThe Lunchbox has landed!
https://drive.google.com/file/d/1XMo18gsX8hc7AP8lWdhdXH0lbr09cr1P/view?usp=drivesdk
Have I mentioned the front double wishbone conversion? 😉
wardeeFree MemberThe prop shaft in the Terra scorcher might as well be made out of spaghetti
Maiden voyage and I ploughed it in to a kerb, and the prop shaft bent.
Any one know if there is a decent after market one that is stronger than wet spaghetti?
I’d suggest that the strength of the concrete kerb is a bigger factor than that of the propshaft. – There will always be something that breaks if you drive into a concrete kerb at speed.
I used to have a Terra scorcher / Thunder dragon when I first started racing in the 90’s and never managed to break the prop shafts despite, running motors that were far more powerful than the standard 540. It’s normally the chassis and front bulkhead that are the weakest link on those cars, The pivots for the suspension arms, and shocks would occasionally bend as well. Wishbones didn’t break but would stretch and become deformed with repeated impacts.
I’m not aware of anybody that makes a stronger propshaft for that car, but it is pretty unusual for them to break. I would just replace it (if you can’t straighten it well enough to avoid vibration) but check your chassis, because in order to transfer axial load to the propshaft in a head on impact the chassis needs to deflect a lot, which it won’t usually do without breaking. There will probably be cracks around the screw heads where the front gearbox attaches.
The most important mod on those cars was to the battery holders, I used to add elastic bands as otherwise the things would flex and the batterys would fly out.
clubbyFull Member@stumpy01 BIG thumbs up for the Cut Staggers, they totally transform the front of the car. Had a chance to try them on all surfaces and the amount of bite is perfect for RWD.
Front grip is now giving power oversteer on dusty surfaces desire the bigger pinion.Not sure about the springs on the rear. Rear of car still getting kicked about on bumps. Going to refill the rear shocks with the heavier oil I bought.
Last job is to try packing the diff with grease. Hoped to avoid that for now as it’s a lengthy rebuild but the car is digging itself in on dusty stuff with only one wheel spinning. Half filling the diff with stiff grease is supposed to help.
fettlinFull MemberYay! Still need to replace a few worn bits but it lives! Dead steering servo was shorting the ESC, quick swap for a new one and away!
View this post on InstagramLockdown fun day #whatever. #traxxas truck + #goprohero + #garden = #funtimes
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stumpy01Full Memberclubby
@stumpy01 BIG thumbs up for the Cut Staggers, they totally transform the front of the car. Had a chance to try them on all surfaces and the amount of bite is perfect for RWD.
Front grip is now giving power oversteer on dusty surfaces desire the bigger pinion.Great!
Will have to get some of those tyres ordered!Might get a pinion too, as it doesn’t really need the acceleration!
Still undecided on the suspension. Can see me buying new oil, then feeling like it needs different springs, then feeling like it needs different oil etc….Will get the tyres & pinion, then go from there! Cheers.
matt_outandaboutFull MemberFolks – does any 2.4ghz receiver work with any 2.4ghz controller?
We’ve an FTX controller (with ‘pairing’ button) I just need a receiver which will play with Tamiya ESC.
wardeeFree MemberFolks – does any 2.4ghz receiver work with any 2.4ghz controller?
No. They need to be compatible.
meshFull MemberHave been following this thread a little too closely, so have now taken delivery of an FTX Outlaw to go bashing with the boy. Stories of inept driving and mass destruction will no doubt follow…
*stares intently at battery charging in the corner
weeksyFull MemberHope your FTX lasts longer than ours, not had 15 mins out of it yet without it exploding a part.
Harry_the_SpiderFull MemberWhereas I’m confident that the Grasshopper could survive being fired out of a cannon suffering damage only to the corners of the body shell. After a series of massive cartwheels on a tarmac carpark mine ended up looking like Shane McGowan’s teeth. However, I found all the bits and stuck them back in with super glue.
I also accidently launched mine off a 10ft drop into a field. I tried to drive it the fifty or so yards to the gate so that I could retrieve it, but it beached so I had to climb over and get it. Luckily the horses in the field were not interested in me or the car.
3.7km in. If it isn’t on Strava it didn’t happen. https://www.strava.com/activities/3425446609
Next purchase update: Nobody has a Mad Bull in stock. I’m waiting impatiently.
RustySpannerFull MemberMy 2CV has just arrived. 🙂
I have a lot of uni stuff to do so will be putting the build off for a bit.
Still need a servo and rx/tx.
Might just start doing the body though…..
timmysFull MemberHotshot shaped box just arrived from Howes 🙂
Now to decide whether to be good and wait for my birthday as planned (mid June), or my wife did say I could have it now as something to do while we are still (sort-of) locked down…
demonracerFull Member@harry_the_spider my local appears to have one in stock … good guys and normally good prices too!
https://www.pegasusmodels.co.uk/product.asp?type=&maingp=RC+Cars+%2F+Trucks+&prodid=998349#.XrrOQiXTWaMHarry_the_SpiderFull MemberMad Bull ordered.
The in-stock date at Howes seems to have been moved so I bought the car and a couple of bits from Pegasus (thanks for the tip off) and the rest off eBay. Cost me about a tenner more than than the bundle would have done, but bits will start arriving tomorrow rather than at some unspecified time in the future.
The stickers on the Mad Bull are “Gopping”, so I’ll be doing my own scheme. Also, as the bodyshells are £7.50 at some places, I may get a spare and was thinking of doing the faded American flag scheme on Vice Grip Garage Chevelle.
Once again. Damn you Rusty! 😉
clubbyFull MemberQuite fancy a monster truck or crawler as well. Just back from playing with buggy on beach (sorry I mean taking exercise). Sand slinger tyres are huge fun but front end ground clearance meant it was skipping about over even small stones. Could get Blitzer beetle axles which run bigger fronts but building new cars is just so much fun.
On smoother sand though buggy was amazing.RustySpannerFull Member🙂
They are a bit moreish, aren’t they?
How about a Lunchbox?
Everyone needs a Lunchbox.
They should come free on the NHS.
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