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View Full Version : I know it's a TC but what do you recon?


ads0021
28-01-2009, 11:06 AM
If the layout works on a TC there's no reason it wont on a buggy.

5195

PaulUpton
28-01-2009, 11:53 AM
this layout is already being used on the Losi JRXS type R TC! i used it with NiMh and was hard to get weight transfer left to right but with LiPo you can put the weight on the edge of chassis to acheive this, i reckon it could be a winner!

looks good!

Paul

ads0021
28-01-2009, 01:31 PM
I fell that losi made too many compromises to achieve there central layout(big diffs, short wishbones) With this car, because its conversion from the T2 009, the basics will be right. I dare say it will need some roll center changes. Should be good with high grip.

till
28-01-2009, 03:11 PM
hi,
i think this kind of chassis laoyout is very cool.
And here is a projekt that uses this on a 2wd
http://www.oople.com/forums/showthread.php?t=1574

Till

mark christopher
28-01-2009, 03:51 PM
hpi did it was it pro3?

westie
28-01-2009, 05:08 PM
Good old pro 3 :D
http://www.rcracing.com/images/hpi-pro3+logo.jpg

MHeadling
28-01-2009, 05:41 PM
Looking good Adam, I ran the Pro3 when I was working for Mirage, my one had all the Hara bits on it and had an RRP of about 600!

But the pro 3 had the short arms and wide diff like the Losi it was a pain to set up!

I saw Adams car at the Petit, it looks like it will work to me!

franki
28-01-2009, 08:05 PM
Good old pro 3 :D
http://www.rcracing.com/images/hpi-pro3+logo.jpg

I loved that car i had my best results with it!!!

HzR
28-01-2009, 10:33 PM
Should work great. A lot of the older type 4WD buggies had a lay-out like this. Kyosho Lazer etc.

qatmix
29-01-2009, 01:24 PM
I think it looks cool. I think the introduction of lipo will change how people are using the weight distribution in the car.

BTW The Team magic E4 also has the batts down the middle, although it has a 3 belt system

ads0021
29-01-2009, 03:58 PM
I've got one. Lots of nice ideas on it! I could never make it go.

Fabs
30-01-2009, 12:09 PM
I saw that car at the Petit RC race too and I don't like the route for the belt. You shouldn't have any tensioner or pulley on the loaded part of the belt. I know X-Factory have done that in the X-5 but it doesn't make it right and it doesn't matter as much in Buggies.

As for the Pro3, it had long wishbones and shorts driveshafts, which meant the driveshafts were popping out while cornering. Besides it was as stiff as a chewing gum, unless you had a carbon fiber chassis for it.

Other than that this layout makes for a very safe car, very good in mod back in the days, but not so sure at the present moment as we seem to be looking for more and more steering.

super__dan
30-01-2009, 01:00 PM
I know X-Factory have done that in the X-5 but it doesn't make it right and it doesn't matter as much in Buggies.


I might regret this statement if proved wrong but I dont think the tensioner is on the loaded side on an X5.

Fabs
30-01-2009, 01:35 PM
Correct me if i'm wrong, but the belt goes around the motor does it not? And both the bit that goes to the front diff and the one that runs from it. so the belt has to be wrapped around the motor with pulleys.

Fabs
30-01-2009, 01:39 PM
To be honest I've not paid much attention to the X-5, all I could remember, and that was from quite a while back, is that the belt had a strange routing which I didn't like.

Chris Doughty
30-01-2009, 02:09 PM
I believe the X-5 uses similar belt routing to the XXX-S and XXX-4

if this is the case then the tensioner is on the 'correct' side, anyone that has ever tried to use reverse on a XXX-S or XXX-4 will know that the belt skips like a crazy thing, and yet when its driven forwards its perfectly fine.


the reason it has a strange routing is because its single belt and is required to get enough belt/pulley wrap to get any drive to the belt.

Fabs
30-01-2009, 02:13 PM
Yes I know all that I've designed two single belt cars myself... What I was on about is that in my memories the X-5 (and bear in mind that could well have been a very early prototype) had the belt going around the motor both ways. Now I've had a look and I can see that the motor isn't anywhere near the belt on the production car.

Chris Doughty
30-01-2009, 02:28 PM
I might regret this statement if proved wrong but I dont think the tensioner is on the loaded side on an X5.

I think your right

Chris Doughty
30-01-2009, 02:30 PM
Yes I know all that I've designed two single belt cars myself... What I was on about is that in my memories the X-5 (and bear in mind that could well have been a very early prototype) had the belt going around the motor both ways. Now I've had a look and I can see that the motor isn't anywhere near the belt on the production car.

I have never seen the motor anywhere near the centre of the car on any X-5, its always been hanging out the side of it. :eh?:

super__dan
30-01-2009, 05:52 PM
Not thing of this thing are you? http://www.iq-tuning.ch/en/4wdmki-4.html

If so defo NOT an X5 ;)

Rebelrc
30-01-2009, 06:13 PM
I think it looks great adam......Well done
:)

Fabs
30-01-2009, 08:40 PM
Dan's the man yes that's it, I knew somewhere I'd seen a XX4 with the belt routed around the motor... For some reason it had stayed in my mind as being the X5.

ads0021
31-01-2009, 02:15 AM
You're right about the belt not being deformed. I just see it as less of a compromise than having 3 belts for instance. Because there is a large amount of contact it seems that the front belt can be run loose with no slip. All will become clear in the next few days when i start testing.

Fabs
02-02-2009, 06:31 PM
Mine had a single belt...

Rebelrc
02-02-2009, 07:33 PM
Pic's please Fabs!!!!!!

Fabs
02-02-2009, 11:28 PM
sorry pal if i did this i would have to kill you...