viking252200
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Posts posted by viking252200
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Yes, I'm actually a bit proud that I'm elevated to this exalted status
Maybe I should have a t-shirt made?
Origineelreclamebord, I did try to mount the ball connectors on the top, but that resulted in severe bump steer.
In the end, I filed 1mm of the bottom, thus increasing the height of the turn buckle.
Despite all these mods, there's no issue with bump steer.
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Hi,
Here's a mail I got today (sent to my private account) and apparently according to this gentleman, we at Tamiya club are all a bunch of idiots and I am the master of all idiots!
Why? because I modified my xv-01
For anyone interested, here's the mail:
"Hi!
I read your statements here: http://www.tamiyaclub.com/forum/index.php?showtopic=67040&st=100#entry466515
I don^t believe for a second that you actually returned the model back to original before testing it with your brainless modifications. You simply think that you know everything so much better than Tamiya, which is unbelievably arrogant, ignorant and stupid. Among all the idiots at tamiyaclub, you are really a master in stupidness."
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The turnbuckles are Lundsford's titanium ones and the ball connectors and ends are from Tamiya.
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Just a quick update on my XV-01
As people have suggested, I undid my mods, installed some electronics and took the car for a spin...
Out of the box and on tarmac, it does indeed drive very well!
Entering and exciting a corner, I had expected some understeer but it's actually pretty much neutral.
Enter a corner, brake hard and the rear will step out, but its fairly easy to catch.
Off-road the car behaves overall pretty much as you would expect, but (and that was the reason for my mods) the lack of down travel, does mean that it gets upset more easily...mind you it's not a huge problem, but it's there...
Next, I re-installed my mods and drove the car again...
On tarmac, nothing had really changed, but off-road it was quite obvious that the addition of down travel helped the car remain stable over rough ground.
Are these modifications necessary?..for me they were! The car drives very well without them, but I think it drives better with them
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Maybe put some electronics in it and drive it before carving it up to fix "issues"?
In hindsight, I should have done that...but one thing leads to another...
I can't leave well enough alone, even though I should
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ugh
and now your drive shaft is barely in the diff output
I think you are right, better a street car than rally
Cool mods, Wouldn't it be easier to have just changed the ball studs on the steering knuckle to be at the top? Remember Rally should not be really high, its for gravel and packed dirt. 20mm is fine. My TB01 runs fine at 17mm for rallying.
Actually, the drive shafts are ok. They don't bind at full droop.
I did try to put the ball studs on top of the steering knuckle, but that gave me a huge amount of bump steer.
I agree that a ride height of around 20mm is adequate, but it was more the lack of down travel that prompted me to do these mods.
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So, I have finished building the XV-01, haven't installed the electronics yet..I bought a Tamiya Wild One instead of a motor/esc combo...ups
What's the verdict?..
Well, I'm not sure how to put it, but I think Tamiya has dropped the ball with this car!
Out of the box the car has a maximum ride height of 18-20mm...
Now that may not be bad, except that you don't have any down travel what so ever! and on a rally car that drives off-road, that in my eyes is a let down...
Without the down travel, the car will be thrown out of balance.
With my other rally cars, a certain amount of filing and cutting can usually give you more down travel, but here the chassis and the front rear suspension mounts is in the way..big time!
See where the rod end touches the suspension mount?
That needs to be filed down a lot, but you can't file it down enough because of
the screw. Cutting 5mm or so of the rod end helps too...(marked in green
That all give a bit more down travel, but as soon as you turn the wheels, the rod ends, hits that suspension mount...
See the ackerman plate with the two blue balls?
They need to be raised 5mm or so in order to get a bit more clearance..
I made a plate out of some scrap plastic, drilled some holes and screwed the plate on.
The result is this:
Now, except for full steering lock, the rod ends clears the suspension mounts...barely.
Now because of the piece of plastic I put on, the rod ends now touches the front gearbox, so in order to correct that, I moved the blue steering posts to the rear position.
Unfortunately, that's not the end of the mods...
The down stops on the chassis have to be removed and the a little bit of filing has to be done to the front a-arms and c-hubs.
not a lot though.
The result of all this is a ride height that is still around 20mm, but now with around 8mm of down travel
This is a before and after pic of the rear, but the front is nearly the same
The rear didn't require and modification except a longer shock rod end.
I may have overreacted, it might drive perfectly out of the box...One would assume that Tamiya did a lot of testing before they released it, but I can't help but feeling a bit disappointed...
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It should be quite easy to fabricate a cover for the underside of the belt.
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does the belt cover add any stiffness to the chassis, or can you leave it off?
No, the belt cover is made out of some very pliable plastic, so it doesn't add to chassis stiffness.
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Ta-mark, the pinion is the standard alu. one.
Okay, let's continue with this build...
After the front gearbox assembly, I started on the rear one and again no problems were found, but just as the front gearbox, I did use some shims to eliminate some play.
The belt tension unit is composed of two bearings, sandwiched between 3 thin washers, ensuring that the bearings can rotate freely.
Very neat little detail
Removing the diff is basically a matter of removing four screws, making maintenance a breeze...for the front you have to remove eight screws.
The gearboxes taken care of, let's start on the suspension mounts and steering linkage
Everything fits together perfectly as one would expect and despite only the steering posts are made of alu. it's all tight and smooth.
I do have to say that I'm not really fan of the alu turn buckles...they do look mighty pretty, but they mar very easily. For a rally car maybe not the best choice?!
The front a-arms and universals were up next...
The universals are of the type where a ring holds the pin in place, that should eliminate those pesky grub screws
The front suspension has no e-clips! The outer hinge pins are captured using screws and the inner hinge pins are held in place, using metal suspension balls.
Everything smooth and sturdy!
Installing the front a-arms together with the gearbox/motor were next
Seven screws secures the gearbox to the chassis.
As you can see, there is a fair amount of built-in caster, not sure how many degrees though...
The rear suspension mount is a repetition of the front, nothing really different.
The rear arms are of the reversible type, so take care when you install them.
After installing the rear a-arms, the rear gearbox and the drive belt, we have a something that looks like a car
With the belt cover...
While it does a good job at covering the belt, the belt is not totally inclosed.
The front pulley is not covered 100 percent and the belt cover is open on the underside, from the front pulley to the beginning of the battery compartment.
Is it a problem?..hmm not sure...dust might find its way in, but pebbles and so on?..I don't think so.
The chassis pretty much done, let's do the shocks!
The shocks are Tamiya's TRF units and when assembled they are butter smooth!
I filled the shocks with the incl. oil, Tamiya's #900.
The springs are softer than on-road springs, but still too hard in my opinion.
The oil/spring combo, doesn't quite work...too springy for my taste...
But, that is something I'll play around with.
The manual tells you to use the short rod end, but I thought I would be clever and use the longer one, so I could get more droop...turns out that might not have been the best of ideas...
That's all for today...
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Let the build begin!...
The diffs are the same as Tamiya's Ta-06 and they go together without any problems.
I lightly sanded the plastic gears to make sure they were flat.
I lubed the o-rings and gaskets with green slime and installed the gears.
I filled the diffs up with the supplied oil (Tamiya's clear hard type) and screwed them together.
When you do that, take care that you don't strip the screws...
Assembled diffs
After the diffs, it's time for the front gearbox.
The gearbox itself is very compact and thankfully there are no alu. gears in sight!
No problems putting the gearbox together, but I chose to use some shims to tighten things up a bit.
There is one thing to be aware of...You have two different lengths of "drive pins" 2x8mm and 2x9mm.
Make sure you use the 2x8mm for the spur gear otherwise you are going to use some foul language..
Here's the gearbox without the motor
And here with the motor installed and yes, I did go with a humble 540
Haven't really made up my mind as to what motor I should get...
With the motor installed, It was time for the shock towers.
Again no problems were encountered, but the screws that hold the blue balls in place are 18mm long and to me they do seem a bit on the short side...if they were around 22mm they would hold the balls more securely...
A nice touch are the foam dust covers.
Here is the complete front gearbox.
That's all for now...
I'll be back..
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It's here!
I just picked up my XV -01pro from my LHS
It does come with rims, tires and foam inserts, so that's good
Unfortunately, it comes with Phillips head screws and to be honest for the price of this kit, it shouldn't...
Ohh well, that's Tamiya for you
I shall momentarily start the building process and I'll post pictures of the build..
Here's a couple of pictures for you...
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I just bought the screws individually.
I detest Phillips head screws and for the life of me, I cannot understand why Tamiya continues to use them!
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Here's some pictures of my front end...
As you can see, I did change the kits steering linkage for some lundsford titanium turnbuckles.
In order for the rod ends to clear the servo, I had to use the other included servo horn.
As for them "locking up" the shocks, I only get that problem if I dial too much steering in...
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Can you show your front end ? Mine is al bound up on the right shock no matter what I do !
I would be happy to post some pictures, but somehow I can't attach photos
I get a "Uploading is not allowed" message...
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I have just about finished building my Wild One and does it look sweet!
This is not going to be a shelf queen, I will run it and maybe even enter a vintage race or two...
Running these things, you're bound to break things, so I was wondering what breaks on this?
Any recommended spares I should stock up on?
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I'll hopefully take delivery of my xv-01 pro this friday.
When I get my hands on it, I'll post some pictures...
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I'm a happy guy!...I just picked up my very first Wild One from my LHS.
Of all the re-releases, this is pretty much the only one I really wanted, it just looks so utterly awesome, just the way a buggy should look
I also picked up a "torque tuned" motor to replace the kit motor and I think that's about as much motor as I'll put in it.
I'm in the process of building it right now and so far it has been enjoyable...just taking a break...I ran out of 850 bearings!
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I agree! Too bad it's 200 mm, what are you going to use for wheels? You need + 6 offset or more
It seems that "rally legends" has the right style, but I'm not too sure what kind of off-set they have.
I'll make it work somehow...
I just came back from my LHS and I was told the the release date is July 21st
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This is the one....
In my humble opinion, one of the most beautiful rally cars ever made!
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Well, I pre-ordered the pro version today and it should be in my hands sometime in July.
I will of course be posting pictures
At the same time, I ordered a Chevron Lancia 037 body
Now, I just have to wait....
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It is being released at the end of July over here in Japan.
I agree that it looks good, but looking at the pictures, there is just one little thing that bugs me...Where's the droop?
I mean, it looks like the suspension has quite a lot of "up" travel, but no droop?
Anyway, I will pick one up when they become available.
Just not sure if I should get the pro version or the standard kit.
The pro version is around US$200 and the standard kit is US180.
What would you guys get?
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So I installed the 8.5t brushless motor in the mad bull and i have to say that i'm quite happy with the result...it goes like stink!
There's just a little problem; since that brushless motor is so powerful, the tires are frankly not up to the job.
Therefore i'm looking for some tires , around the same size but with more grip.
Do you have any suggestions?
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Hello guys,
Just a question for you...
What would happen if I put a 8.5t brushless in my madbull?
No lipos, just NiMh.
Would the gearbox explode or would it be ok?
Tamiya XV-01, New All-Terrain, Crossover Rally RC
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