X-60 Truck thoughts

[Migs]

I was thinking about the X-60 and though i dont have one, i was thinking about it and wanted to put my thoughts out there and see what people reckon.

2 Gear Gearbox. Just thinking if its possible instead of adding another idler gear to make it a 4 gear, is it possible to drop the idlers all together and run the mainshaft and diff only, or my other thought was to use a belt drive like the hpi rs4 mt electric that had a short belt to the rear diff from the mainshaft and a inboard rear mounted motor

Saddles atomic carbon style: Anyone have any thoughts on running the battery in the saddle configuration like an atomic carbon, rather than in a stick accross the chassis? the weight would end up marginally more forward and a little more central down the line of the chassis, maybe with the low weight of lipos there wouldnt be much difference

catchyas

[SpeedyDad]

1) Can't do it. The spur would overlap trhe outdrives. Would also change the final drive ratio.

2) Would require a lot of chassis carving which would compromise the integrity of the chassis.

[paul01ews]

If it's not broken then do not try to fix it ?

I am sure that Paul at X-Factory has tried all the options, and when you get to drive one then you will know nothing major need's changing or to be done with it.

Paul.

[Body Paint]

2 Gear Gearbox. Just thinking if its possible instead of adding another idler gear to make it a 4 gear, is it possible to drop the idlers all together and run the mainshaft and diff only,

This can be done by using much larger gears internally to move the layshft far enough away from the diff to allow you to mount a spur gear without overlap, however, you end up with a huge diff which means the diff outdrives are much to high in the chassis and the car has very little side bite and is aweful accross the rough.

Saddles atomic carbon style: Anyone have any thoughts on running the battery in the saddle configuration like an atomic carbon, rather than in a stick accross the chassis? the weight would end up marginally more forward and a little more central down the line of the chassis, maybe with the low weight of lipos there wouldnt be much difference

I tried this on the X-6 as I originally didn't like the idea of the weight being wider in the chassis. The saddle pack setup makes the car feel less balanced. It also seems to generate less consistant grip and can spin out very quickly. The traction is also a bit weird with the sadlle setup, in a straight line forward traction is good, but if the car is in a turn and you apply the throttle the rear wheels spin very easily. Once I put the stick lipo in the car became planted and lap times went down dramatically.

Keep the ideas coming though Migs :-)

[Migs]

thanks guys, i like the feedback, of course, i should have thought about the gearbox thing a bit better, my main intention was to just reduce moving parts in the box, therefore drag but the spur would fowl on the out drives, or u'd need bigger gears, ok so that idea is out and im guessing adding the extra idler probably wouldnt add much drag to the box anyway.

the batts, when you put it that way body paint, it makes sense, having the weight further back would help reduce the wheel spin, and im thinking now that having the weightmore spread side to side could help weight transfer to the outside wheel as well

oh and dont worry, i never thought the thing was broken/bad, x-factory do awesome stuff, im just sad it took me so long to look past all the people who were against the idea of cutting things up etc to make the X5, though i probably didnt have the skills or the nerve to "give it a go" back then but now im comfortable with a dremel in my hand lol.

so now im out of ideas for the moment, but i am sitting here wondering (and it may have been explained elsewhere) why x factory chose to base their 2wd and truck on AE cars rather than continue with the losi work.

[Mike Hudson]

I guess because the losi 2wd cars don't have steering associated 2wd's always had really good steering and the associated b4 is still the most popular car out there so many already have them if they want to convert so won't have to buy 2 cars instead of just a conversion

[super__dan]

Migs, the drag of the extra idler is seriously minimal, when you spin a 4 gear in your hand you wouldn't really tell the difference comparred to a 3 gear box and in this day and age (lipo and brushless) it's a nothing (to worry about).

Mike, there are all kinds of reasons but you have covered 2 of the biggest ones!

[Migs]

thanks dudes, it makes sense, there probably are more b4s getting around so more opportunites for people to convert them. I figured the loss from the 4 gear wouldnt be much, though i keep all those things in mind because i race stock. The T4's always seem to have a little more 'pep' than my thing, i figured its because their gearbox is a little more efficient, although not optimal, can the 3 gear be run in the x60?

[SpeedyDad]

I run stock also (anything more scares me - my screen name is kind of ironic really) and it is plenty fast. Where I usually make time is in the infield in the corners where the X vehicles really shine. I usually end up running 17.5 against almost all others running 13.5s and my truck does pretty good for itself. Install a fan to cool the motor and you can gear them up more.

[Migs]

yeah thats the other advantage of the in board motor, lots of space to put a big ass heat sink on the thing, i'd put one of the big lrp ones with the fan on it

[SpeedyDad]

BTW - are you running 13.5 stock or 17.5 stock?

[super__dan]

Originally Posted by Migs

yeah thats the other advantage of the in board motor, lots of space to put a big ass heat sink on the thing, i'd put one of the big lrp ones with the fan on it

We ran one of those with a 25mm fan running 7.2V, 8.5 motor and ran it for 24hours straight with no issues. Temps were about 135 - 165 deg f throughout edepending on who was driving!

[jono83]

i use one on my x6 but jus use the heatsink usually because the fan is huge lol

[YoungChazz]

Are you saying, Dan, that a certain "animal" driver with Beatle haircut made the motor run on the high end of that spectrum, while another "Super" driver ran it at the lower end???

ROFLMAO

[matdodd]

I think that would be fair to say

[super__dan]

Originally Posted by YoungChazz

Are you saying, Dan, that a certain "animal" driver with Beatle haircut made the motor run on the high end of that spectrum, while another "Super" driver ran it at the lower end???

ROFLMAO

Exactamondo!

[Migs]

Originally Posted by SpeedyDad

BTW - are you running 13.5 stock or 17.5 stock?

Sorry speedy, i forgot to answer your question, in australia we have now adopted 17.5 as our stock motor. im trying to keep the 13.5 alive at our club in 4wd stock, as we have a good size field that we can split up in to 17.5 and 13.5, the idea is just to keep me a bit sharper, so when i get to the bigger event, 17.5 will feel a little slower than what im used to, even though i know 17.5 can compete with 13.5 having won a round of our state series with a 17.5 in my truck while most were running 13.5s

[Migs]

oh and i know this isnt an x-factory car, but after thinking about the truck and what i want to try, im hopefully picking up one of the hpi rs4 mt things and run it as a 2wd truck, it was somewhat ahead of its time, inboard motor, belt drive, battery placed at the back across the chassis like the x60.

Depending on how i like the standard geometry, i might try and hybrid it with my mf2, probably by making a chassis and going from there

[Migs]

I've been thinking so much about the X60 and all its merits i just ordered one, lol

[Migs]

and i nearly bought a dan greenwood hat, i should have, oh well next order