Diff Questions

[low10s]

how often do you change diff fluid?

 

[RustlerDood]

rd that is best for your situation and driving style. If his setup works for him then what he has would actually be best.

5k, 7k, 1k is used by the pros i.e. Yuichi Kanai and the like......so no, that is no just best for my situation and driving style. His driving style will adapt and lap times will drop........also other people are recommending the EXACT same setup so...........

 

[RustlerDood]

do you run on a smooth blue groove style track, were drifting is possible all the time, the more drive you have in the rear the less steering you have in the front, tends to push the front end around alot more than normal, also makes the car snappy when it does finally turn
I run 5k front 7k center and 1k rear

Mike

Another 5,7,1 guy the crowd has spoken vb.......

 

[vbgagnon]

This is the last time I reply to your stupid ass. I said if he runs that weight oil and likes the way the car drives the go for it. When the wheelers were at ofna they must have been slow because they were running 3k, 3k, 5k in their buggies. Man they must be stupid because RustlerDood says to run 5k7k1k. I'll tell them that you are a god and everybody should bown down to you!

 

[mikeburgin]

the thicker the oil in the rear the mor straight line grip you have but the less turn in as well, thicker the oil the more the dif starts acting locked, to the point were you have to slide the back around every corner
on the front the thicker the oil is the more pull in under poer you have, but the less turn in off power, has other functions as well but that is the basics

Center dif basically the thicker the oil the more drive you will get forced on front and rear

 

[Plaidfish]

I'm gonna try 6/10/2 and see what it does.....just for shits and giggles......I have those fluids sitting there in my box and I'm never gonna use em...but I'd still like to see what it does.....

 

[mikeburgin]

Actually Z, pushing is when the rear won't go around the front. A vehicle pushes when the front tires loose grip before the rear tires do. Then the car won't turn and it essentially pushes through the turn. This is common to FWD cars, also known as understeer. in Nascar terms... it's tight.
Being loose is just the opposite, when the rear tires loose grip before the front tires do and the rear end want to kick out in a turn. Also known as oversteer. Common to a RWD layout.

the part that I'm not clear on so far is what combination of oils gives a buggy oversteer vs. understeer. so..

thick in front, thin in rear= ?
thin in front, thick in rear= ?

thick front, thin rear will give you over steer, but only under power, and understeer off power, for every plus there is a minus, examp;e would be 1kfront 5k middle 1k rear car would turn well into corner but would not exit the corner as well

 

[mikeburgin]

I've never run the xterm, but typically that seems like a thick fluid in the rear, but if it works for you then its a good setup.

Different fluid setups work in different situations, different track layouts and terrains. If you like the way your ride handles then its setup the way you want it to be!

would sound like he is a off on trigger driver, doesn't use half throttle around corners, hense needs the back end of the car to slide in the corner, this setup would not be a fast one around a dusty or slippery track, mayber alright on high grip track though

 

[mikeburgin]

5k (front), 7k center, and 1k in the rear would be better.........

A standard setup would be 5k 5k 3k
most drivers change the rear to thinner
to thick in the center dif means your car does weird things in a straight line on a bumpy track

 

[mikeburgin]

5k, 7k, 1k is used by the pros i.e. Yuichi Kanai and the like......so no, that is no just best for my situation and driving style. His driving style will adapt and lap times will drop........also other people are recommending the EXACT same setup so...........

remeber it depends on the track he runs, surface bumps etc

 

[mikeburgin]

do you guys understand how a dif works ????????????? if u dont i would advise doing a little research on it, these difs work the same as a car dif, specially a limided slip dif, the only difference is the limited slip uses heat on disks to adjust the persure applied to the spiders, and your car uses oil, if you locked your car dif up ( the equivilant to putting heavy oil in the rear, you would not be able to tun in because the wheels would not be able to turn at different speeds, since both wheels do not follow the sam radius around a corner one wheel has to be turning faster than the other, thick oil stops this happening

Thick oil rear = good acceleration in straight line, but no turn in in corners
thin oil rear= good turn in, but not as good at putting the power to the ground
thin oil front = good turn in but will straight line out under power
thick oil front= less tyurn in off power but excellent ability to pull you out of a corner under power
thick center dif = will put more constant power to all 4 wheels
thin center= will but power to wheels with the least load

simple exsplanation sort for a dif anyway
there are other efects as well like jumps bumps etc etc

 

[Plaidfish]

I do understand how they work...I just want to try and see how it handles or more TTP, How I can drive it...you never know how the diffs will respond to your driving style as well....rather than me training myself to change the way I drive into/out of corners why can't we adjust the buggy to our own personal driving style?....I think this is what VB was trying to say earlier....if I know I go WOT throttle til the last minute and let of the throttle around the corner and punch it coming out then I would want a thicker oil ( in the front) than the standard 5-5-3 you mentioned so I can wail out of that turn once my buggy passes the apex (the peak of the turn)......I know you are saying the track conditions also play into the roll of this but not many of us here (I'm pretty sure) change the fluids that often for track conditions.....I hope I summarized everyones opinions here so we can stop what seems to be going towards an argument...mike I liked your summary very much, thanks.....

 

[RustlerDood]

This is the last time I reply to your stupid ass. I said if he runs that weight oil and likes the way the car drives the go for it. When the wheelers were at ofna they must have been slow because they were running 3k, 3k, 5k in their buggies. Man they must be stupid because RustlerDood says to run 5k7k1k. I'll tell them that you are a god and everybody should bown down to you!

lol..........just noting I am not the only person who said 5,7,1......too make the car easier to drive try 3,5,3 for starters....if he doesn't like 5,7,1 he can change it.

"bown" = bow???

You might be on to something........ :smoke:

 

[RustlerDood]

I do understand how they work...I just want to try and see how it handles or more TTP, How I can drive it...you never know how the diffs will respond to your driving style as well....rather than me training myself to change the way I drive into/out of corners why can't we adjust the buggy to our own personal driving style?....I think this is what VB was trying to say earlier....if I know I go WOT throttle til the last minute and let of the throttle around the corner and punch it coming out then I would want a thicker oil ( in the front) than the standard 5-5-3 you mentioned so I can wail out of that turn once my buggy passes the apex (the peak of the turn)......I know you are saying the track conditions also play into the roll of this but not many of us here (I'm pretty sure) change the fluids that often for track conditions.....I hope I summarized everyones opinions here so we can stop what seems to be going towards an argument...mike I liked your summary very much, thanks.....

As Mike said above by stepping up the center diff oil to 7k you will put more power to the front running 5,7,1 so when you hammer it after the apex you will get more power to the front and more steering coming out of the corner so you will be able to mash WOT earlier than if you were running 5,5,7 which would exhibit more push and you would find yourself laying off the throttle longer after the apex.

 

[mikeburgin]

I do understand how they work...I just want to try and see how it handles or more TTP, How I can drive it...you never know how the diffs will respond to your driving style as well....rather than me training myself to change the way I drive into/out of corners why can't we adjust the buggy to our own personal driving style?....I think this is what VB was trying to say earlier....if I know I go WOT throttle til the last minute and let of the throttle around the corner and punch it coming out then I would want a thicker oil ( in the front) than the standard 5-5-3 you mentioned so I can wail out of that turn once my buggy passes the apex (the peak of the turn)......I know you are saying the track conditions also play into the roll of this but not many of us here (I'm pretty sure) change the fluids that often for track conditions.....I hope I summarized everyones opinions here so we can stop what seems to be going towards an argument...mike I liked your summary very much, thanks.....

sorry plaid i just read what i wrote again and if you werent inside my head you would probably think that was ago at you, wasn't meant that way at all, noticed a few other coments on here that sort of look like people need to read up a bit on difs for a better understanding,
as far as setting the car up to your driving style, you can but there is a right way and a wrong way to drive, new people tend to be all throttle and brake and no throttle or brake control, not saying that you are, the reason the pros setup the way they do, is because the way they drive is the fastest way, if you want to be competive you need to alter the way you drive to get the fastest times, not to alter the car to get the fastest lap times for the way you drive, if you learn to drive properly u will be fast!!!!!!!!

 

[Plaidfish]

No bad feelings here I was actually reffering to the general tone of the banter.....and I was using the driving style as anexample of why someone would want a different setup than what we are all seeming to agree on 5-7-1......seemed there was a pissing contest about who was right and who was wrong.......I personally drive slow on the track all around and rarely hit WOT except long stretches.......anyway I was throwing water on everyone earlier that's all.....no harm done...

 

[RustlerDood]

sorry plaid i just read what i wrote again and if you werent inside my head you would probably think that was ago at you, wasn't meant that way at all, noticed a few other coments on here that sort of look like people need to read up a bit on difs for a better understanding,
as far as setting the car up to your driving style, you can but there is a right way and a wrong way to drive, new people tend to be all throttle and brake and no throttle or brake control, not saying that you are, the reason the pros setup the way they do, is because the way they drive is the fastest way, if you want to be competive you need to alter the way you drive to get the fastest times, not to alter the car to get the fastest lap times for the way you drive, if you learn to drive properly u will be fast!!!!!!!!

Mike is dead on here.....I copied the setup of a Team Losi driver and put in as much pratice as I could with the setup and he helped me fine tune my setup. My lap times went from consistent 24 sec down to 22 sec and over the course of a 20 minute A-main that makes a big difference. I too was not trying to piss on anyone just throwing out my setup which I got from someone who a) is a superior driver to me b) has several yrs more exp. racing than I c) is a Team Losi spons. driver and he kicks major a$$.......so sry to anyone I may have offended....race on!

 

[Plaidfish]

Oh no if you want us to accept that you MUST TYpe the word out.....NO WAY is that acceptable....aaaaggghhh how could you be so rude....I'm gonna pullout my

 

[mikeburgin]

does anyone else have any questions about difs while were all feeling teachnical

 

[CorradoPsi]

if i mount a diff to my wing. will it help my buggies flight more if its filled with 7k fluid or 1k fluid?