Видео

Dude, drink a nice cup of hot tea with honey before your videos. You’re making me thirsty.

Will inverted shocks work on high grip clay?

Offroad cars on carpet and hard pack clay is moronic.

Associated buggies let you change the camber link length which adjusts the camber gain without changing the roll centre. So you could isolate the positive effects by either adjusting the pills for roll centre, or the link lengths for camber gain.

I literally feel the opposite. the extra weight in low grip transfers more energy into the tires to generate grip. in high grip, the extra weight kills you because you DO have all the grip you need, so all it does is slow you down in the corner, or cause you to traction roll. if you want to make the car easier to drive, adjust your setup such thats its easier to drive. if you need the car more numb, make it more numb....add some toe, add some caster, play with akerman, lower the ride height, ect. if you want the car pointer, set it up that way. Weight is a crude way to tune a car for feel. lighter is generally always faster, in the right hands. We have weight minimums but not weight maximums, that should tell you what you need to know. ideally you are always under weight and can (are forced to) add weight to specific areas to tune the handeling while my shifting weight while riding the weight limit.

When you change springs must you also change oil weight?

I much prefer using a centre diff on Astro. I find you can apply power sooner and for longer, especially on tighter sections of track.

Another great video. You can really tell that you have a Motorsport background

This video is brilliant. I had always envisgaed that more roll meant faster weight transfer, and hence more grip which I never really could understand given faster weight transfer would mean less grip on one tire. Learning that less roll is actually faster weight transfer was a lightbulb moment!

Forgive me if I'm wrong. But I've been drawing diagrams. Is the top arm angle not the opposite to what you state? Lowering the inner link(more downward angle on arm) should lower the Roll centre down and vice versa?

Anti Squat has always been my favorite adjustment. On 8th scale I felt like I could just incline it forward a bit and get all the grip I needed if I was oversteering. On 10th scale carpet, I felt like I could just tilt it back and get a much more stable rear end on acceleration out of a corner.

Carpet racing tip I like. If you're running pins on the front like the old proline pyramids, cutting off the nibs on the outer part of the tire will make the car a lot more forgiving and smooth while cornering.

What is Ackerman and how do you adjust?

Can we get an astro pro tip video next?

Would be nice to see you address the difference between rc and full size cars by the difference between sprung and unsprung weight ratio. IMO that’s why rc cars react to weight gain more favorably than full size.

Hi Jamie, what what shock set up is best for outdoor. I’ve got the b6.4 kit set up. I’m finding it a bit slow into corners and not reacting quick enough . Could you give me a guide to help me improve. I have red springs on front blue on rear.

You have the right attitude in trying to tie things to basics physics , and seem generally happy to be corrected thus here are my 2 cents based on first hand experience on full scale vehicles (not all is translatable in RC but forced based explanations of the RC are very relatable to RC also) . iHMO need to start putting a lot of meat on the bone when trying to explain things although i do get that might involve more time from your side - you seem to have fire in your belly though so the effort put in will be worth in the end. Free body diagrams , balances of forces and moments (ie Undergraduate Engineering Statics level) is enough to start getting a grasp before moving to dynamics . Everything else being equal fewer shims will lower the roll center (a classic 2D diagram like one here will help you grasp it easier ruclips.net/video/WkZ7lrLivNg/видео.htmlfeature=shared) - so its the other way around @1:27 . All that being said higher/lower RC is still of relative importance - an unequal length wishbone suspension is a 4 bar linkage with 1 member (upright and wheel subassy) theoretically (momentarily for the shake of statics balance of forcess and moments) constrained with a spherical joint/hinge @ tyre patch contact point with the ground (repeat at the back end) .The forces acting on the CG of the car which is tied to the floating member of the 4 bar linkage are trying to push and pull through the wishbone and the top link and that will result in roll and pitch movements due to side forces at the same time .Specifics of the topology of the suspension from vehicle to vehicle , Kick ups , rideheight changes (resulting in a different stance of the 4 bar linkage etc at a given moment etc) will change the leverage ratios through the wishbone and top link resulting in different ammounts of induced roll and pitch movements).

But you can't reduce the Earth's gravity to 1/10 scale making this video moot🤭

cant "weight" 😆 to learn something new from hallbros

Thanks 😊

Wow, wish i had known this sooner. Been messing with RC-Cars for a year now and i never quite figured this out.

Thank you for 5:24

Does the same idea apply to a sealed clay track?

Engineers and multiple proven theories claim a helicopter cannot maintain controlled flight, but because they obviously can (very well), it doesn’t imply they’re all built wrong for it to contradict the science/theories, does it? IOW: I’m completely tracking your entire explanation/“argument(?)”, and appreciate the time, effort, and very comprehensive way this was all demonstrated & explained. Of course a few tiny weights/measures simply cannot be calculated, due in-part to parts size, inability to be inside these tiny cars, as well as sophisticated tooling that would be required to find every center, bias, etc. I think after showing the many other unsprung weight differences being surprisingly more, showed that flipping the shocks really has no effect. But, if it’s true, swap your tire foams and it’s irrelevant. I’ll certainly be following and trying some things myself. One other thing the other guys didn’t seem to clear up, was that you weren’t actually changing fluids, pistons, etc., meaning part of his argument regarding this really has no bearing on what you’re actually doing (imo)…

Hold the shaft a little stiffer you say, then rub some slime on it

Hold the shaft a little stiffer you say

Little lube on the finger and then slip it in, Got it!

How often should we change shock oil?

My car is getting a lot of pop in the rear end, causing it to do s front flip off of certain jumps at almost any speed, would I change the spring or the oil to try to help?

Have you tried #willspeed springs (12 or 13mm)? How do you feel they compare to the AE v2 (12mm) or v3 (13mm)

The knowledge in these videos is priceless, the problem is that people always think they already know… i know quite a bit about shocks and springs from my own messing around… and i try to do the best i can with remembering all aspects.. down to how well i was feeling connected to the car.. sometimes it just drives bad cause your driving bad…. But this jazz with putting on stiffer fronts to reduce some rear squat, makes crazy sense once you think about it… I find if your REALLY in tune with your car and ran it like that for a long time, sometimes small adjustments like that do have unexpected results… obviously sometimes explainable, but sometimes your just in awe at how it did the opposite of what you’d expect..

I find the softer springs doesnt add side bite (when done all around) nearly as much as dropping a weight in oil all around… its more initial steering i think, more than overall maximum steer…

Interesting when you talk about wet running I have found similar with my touring car. When running a stiffer suspension setup closer to a dry setup it's working much better than a soft setup where the car rolls around a lot, the car is also handles more predictable. One change I do for wet running is more chassis flex which for a touring car is done by changing the top deck to a more flexy option

Thank you, great video and explanation :D

First of all, i wish all the best for hallbrothers web site. I have a question: you said that a lighter spring on the rear will push more on the chassis on corner entry than a harder one. And if i have understood well, it depends basically by the energy stored on preload making ride high. But this will move inside the range of downstop. So the lighter spring will use more stroke during suspension movement?

Any thoughts on calculating suspension frequencies as a means to select springs? I've been experimenting with this lately and it has taken some of the guess work out of picking springs or predicting how much of an impact different springs will have.

What I really enjoy about your videos is that you convey "what it feels like" and how it actually affects the car on track. The science of springs, damping, suspension geometry is so complex its often so much better to concentrate on 'what does this change do to the car on track'. You guys explaining what the effects of each change is the most helpful thing for most racers including myself, so thank you and keep it up!

- A softer spring transfers more weight but less energy into the tire usually equaling less pressure to the tire. - think just like more anti-squat adds more initial pressure to the tire but reduces transfer to the tire (this usually gives more grip) - or anti-roll (sway bars) add more initial pressure to the tire (usually as more grip) - (hint) with (stiffer spring/anti-squat/sway bars) you will have more initial grip but if it fall off at the end of the turn... if adding weight to the front fixes it (you probably don't have enough pressure on the tire) and weight is not the best way to fix this it more of a bandaid.

WOW, that website is awesome. It makes the whole process so easy. Many kudos to you guys on that.

Great video!

Thanks for sharing

Tip: outdrives and driveshaft pins seem to last forever when you clean and grease them lightly. I do this before every track day and my outdrives after +6 months look like theyre not even used.

does these tips work also a a tarmac track?

great video! can the 74.1 be converted over to a 74.2?

I bought a car off temu and it came with upside down shocks

As a shelf queen, it would be kinda neat to do half painted, and on that half use the black parts, and only apply the setup tweeks and stuff to the painted side… worn tires on that side.. ect ect…

Please do an in-depth setup guide on shocks… i dont know that ANYONE has been as thorough as i would expect you to be… like, when a shock is in the “soft” location, it also gets compresed slower.. we just ignoring that effect…?

😭 promo sm

We tried the same with touring cars about 18 years ago.

..lol.. you dont know what happens with more holes vs hole size..?