1:8th Buggy Differential Setup Introduction - A Video From The Invisible Speed Online Course

[@zee_nyc]

Thank you, JQ. Your RC engineering info/tutorials are the best. No one compares.

[@mikehoskins4112]

I love your videos. You are the man. I saw that your book is now for sale at beach rc. I'm about to order it. I know you think most Americans don't like you, but I think your a genius.

[@invisiblespeedrc]

Most Americans don’t know me. Thanks

[@mikehoskins4112]

@@invisiblespeedrc me and all of my buddies at the track consider you to be the god of rc setup and geometry. I can't wait for my invisible speed book to get here. It's gonna be my rc bible

[@mrrogers1499]

Brilliant content , keep up the good work

[@cbh148]

Really enjoy your vids. My next buggies will be Mayako. My Tekno 2.0 buggies required dremeling the spindles for more steering angle, which weakened an already-vulnerable part. Also, they have too many crevices that are hard to clean (the deep webbing on the arms, for example).

[@van_r2222]

Serpent xrs8 pro not bad too

[@MrBoomtheroom]

best tutorials for sure!!!!!!!

[@bashmyracer784]

like it a lot to hear how the thing its going , I need to change my diff oil soon , because I had the problem the my front tires go up when I go to the throttle ... in the last race on carpet I see this ... I lose so much time ... hope for the new saison I will change the right things ti get better and faster , THX JQ

[@stephenpheonix6549]

Great tuning advice again mate thank you. Love the blooper part haha 😂

[@PaddyPatrone]

Thanks, I think this will help

[@irritablearchitect]

I've always been of the opinion that tires and then differential action are number one and number two when it comes to making a car handle and steer where you want it to go.

[@invisiblespeedrc]

Tires are nr 1 but shocks are more important than diffs.

[@SethMaetric]

Another nice video man, can't be said better. At what thicknesses you seperate the thin to thick, also for a high grip track what you suggest being the base oils to start with?

[@invisiblespeedrc]

Thin(ner) than what you have now, thick(er) than what you have now. More info in the course

[@aaronperelmuter8433]

@@invisiblespeedrc ROFL!😂

[@aaronperelmuter8433]

Without knowing what vehicle you’re driving and under what track conditions, JQ’s answer is as close as anyone culled get you. Perhaps a more useful answer though, would have been to use whatever the instruction manual advises because every single vehicle from every brand is by necessity going to have (sometimes very) different home base, as in what oils to start with. You can only go from there. What if your car needs 7-5-2 but what if JQ, or anyone else, said to start with 10-7-4? That would be WAY off, so hopefully now you can understand that to get the information you’re wanting, first you must ask the correct question. Most people don’t want to help those who can’t be bothered helping themselves first, and without you providing the required details of your track, vehicle, etc, they have to go back and forth asking you something, getting an answer (which may or may not include all the info they need), so as the saying goes, it takes two to tango. Just my 2cents worth.

[@SethMaetric]

@@aaronperelmuter8433 What i should say more mate, diffs are diffs even if you drive a chub or a pb car. Been looking several setups for high grip tracks varying from close to book oils to for example 20k-30k-10k, thats why i asked what's actually a thicker oil jq mentions and he answered. I was experiencing inside front wheel lift-spinning and i fixed it with another roll bar. Mayako is doing good job when ordering kits, putting together parts for chosen purpose.

[@Behappyfean]

How about for speedrun,can use lithium grease on front differential?

[@davelowets]

When I retire one of my cars to bashing status, I pack all 3 diffs tightly with automotive wheel bearing grease, let it all hang out, and enjoy beating the shit out of them... 🤙

[@azliaziz3798]

how about those lsd diff and those like the mcd’s using where u can set it to lock for thw 1/5 scale rc any info on this would be much appreciated JQ

[@dakinechips]

How often does one need to be changing diff fluid? 5 or 6 batteries or just look for diff out?

[@ElDiabl0187]

You are the man

[@fredtotton7903]

I drag race this helps thanks

[@floridalife7877]

So JQ so my car does exactly what you said in the video. I have to be careful laying down the power or it will slide out. I can try thinner diffs but which diff in particular would be most responsible for this? Center or rear?

[@invisiblespeedrc]

Both, but usually its the centre

[@floridalife7877]

@@invisiblespeedrc thanks dude!

[@aaronperelmuter8433]

At 1:53 you mention that while shocks help us with transfer loads, differentials do the same for the transfer of drive. I can’t believe you missed that perfect line, instead you said that differentials help us control power delivery. Seriously? Still can’t believe you completely missed that one. Anyway, I always enjoy listening to the way you explain various aspects of handling, geometry, setup, etc. I already know all this as I raced motocross for nearly 15 years and now rc for almost as long but I still dig the way you explain things and the way your mind at a conceptual level works - very similar to me, hence why I enjoy your explanations as they’re so similar to how I explain these kind of concepts to people. Keep up the great work JQ. I miss the village idiot. 😂 🤪

[@invisiblespeedrc]

I know it pissed me off too.

[@D70racing]

Have you completed some of the videos that were missing from the online full course? I’m coming up on my 1yr renewal.

[@invisiblespeedrc]

40 new onroad videos

[@quarterpoundmusic]

Im running an ofna 9.5 buggy. It has black grease in the front and rear diff, thats what the kit came with. What are some other greases that i can use to achieve more or less thickness?

[@invisiblespeedrc]

Diff oils. Most brands have them and most shops sell them.

[@azliaziz3798]

any way we could make our own lsd diff

[@robhutchison4674]

Where can I find the follow-up vids of each diff explanation???

[@invisiblespeedrc]

In the online course

[@phantomx.t.v6610]

I’m considering buying The car black edition but are you guys dropping any new 1/8 buggies anytime soon because I hate when companies drop a new kit every year I’ve had multiple 1/8 buggies but hate the fact after a new kit has been dropped you can’t find parts for the older kits

[@invisiblespeedrc]

You are behind the times. Get the mayako mx8

[@phantomx.t.v6610]

@@invisiblespeedrc will do

[@phantomx.t.v6610]

@@invisiblespeedrc yeah I know I am Im trying to get into 8th scale on a budget at the moment is the The car still supported like are you guys gonna keep making parts for it or are you guys gonna discontinue it

[@invisiblespeedrc]

@@phantomx.t.v6610 There are still a lot of parts available. I thikn you would be good tbh. Where are you?

[@phantomx.t.v6610]

@@invisiblespeedrc I’m in the middle of the us Missouri to be exact

[@H20ONFIRE]

More great content JQ! Any chance of Maifield joining Mayako...🤔.

[@cynicalskeptic2563]

Why not use torsen diffs in the front and center? Back in the early 2000 is what I used to run on my hyper 7 pro.

[@CraigOverend]

I think one reason not to use torsen is when turning on bumpy surfaces when a wheel diffs out and the torsen instantly locks because of the directional worm gears. Also the licensing, weight, complexity, cost. I could see a benefit on smooth tracks like carpet, and I believe this is why we see some using XRAY active diffs that are not instant locking torsens. You may be able to get similar effect to an active diff by using shear thinning or thickening fluids depending on the action you want. For example when both wheels are the same speed, the spider gears are stationary (no fluid shearing), and as soon as wheels experience a difference in speed, the spider gears churn (fluid shearing). Silicone oils are shear thinning.

[@aaronperelmuter8433]

I don’t think Torsen diffs have ever been used in any international level off-road racing vehicles/race series for many of the reasons explained by Craig. Also, Losi used to sell some lsd gearsets for the 8ight and even had different ramp angle rings available so that one could alter if the lockup came on early or late by virtue of the different ramp angles. This could be altered for when under load from drive torque or brake torque. But ye, Torsen diffs have never been anything too much more than a gimmick really. Ever wonder why no WRC team, no major DTM, V8 Supercars, BTCC, etc. teams have ever been known to run them and win consistently with them? No? Well, the very fact that in all those myriad race classes no one uses them and certainly no championship winners, says it all, imho.

[@gihonda127]

I have heard that using silicone ear plugs in the center diffs for quicker air control. Is there any truth to this or have you ever tried this in any of your Rc's?

[@invisiblespeedrc]

No

[@gihonda127]

@@invisiblespeedrc No you have never tried, or no this doesn't work or not true?

[@invisiblespeedrc]

@@gihonda127 It's not a thing.

[@OldfartRC1]

@@gihonda127 that's only for bashing when you want to lock the diff. not applicable for race applications.

[@gihonda127]

@@OldfartRC1 Thank you, that makes more sense, and that helps a ton.

[@LawrenceTimme]

As an expert bashererer I put 20 trillion weight oil in all 4 of my diffs

[@R.B_B]

4 diffs? Kkkkkkkk

[@LawrenceTimme]

@@R.B_B dats rite

[@tonyschumacher2095]

Video stops at each diff separately...

[@invisiblespeedrc]

You need to get the course. This is the introduction

[@edwardspan396]

Seems like this video ends early

[@invisiblespeedrc]

Get the course

[@josephsaucedo8691]

To bad the didn't have a diff that was able to lock up when in a straight line like possy so you have the best of both worlds or a manual lock up on demand like the electric diff's on a street car so you can control it from diffing out on demand. 👍👌✌️💯🍻

[@extec101]

check out xrays active diffs.

[@aaronperelmuter8433]

Also Losi used to sell active diffs for the 8ight which did exactly what you’re mentioning.