Moving the top link up means it moves the instant center (where upper vs lower arms "intersect") further outwards. If your lower arm is angled upwards (at the chassis), raising the upper link will raise the roll center, while if the lower arm is angled downwards (at the chassis), it will lower the roll center. Things get even more muddy to think through when the car is mid corner and you're not just looking at it at static ride height 😉
For the most part, you are correct. The dynamics of a link and/or arm height change is difficult to quantify unless it is being modelled with software. It really comes down to how it feels to drive and lap times.
I’ve been using your 7 adjustments on raceday as my tuning manual. I’d love a video going into more depth on gear diffs and oil. I just switched my b7 to a 2 gear with 60k oil and gained a ton of on power steering.
@@benmoisio232 in fairness it can do either depending on the angle of the lower arm, but in carpet setups where the lower arm as angling up towards the wheel, raising the camber link will lower the roll centre. there are diagrams available online that show how to calculate roll centre for a double wishbone setup. Worth bearing in mind that the Hall brothers are also in the process of studying Motorsport engineering, so it’s not like they’re just guessing either.
Can you suggest a good basic carpet setup for the B7 buggy? Track would be EOS carpet, high grip, medium size. Tires would be Schumacher cactus and splinter. I struggle for a while with the car. Finally I got enough steering, but it is hard to drive the car consistent. Thank you! Your videos are very helpful!
The description of moving the inner link position in or out affecting roll resistance makes perfect intuitive sense. Another smashing video!
Keep doing your thing!! Great content for RC racing!
Moving the top link up means it moves the instant center (where upper vs lower arms "intersect") further outwards. If your lower arm is angled upwards (at the chassis), raising the upper link will raise the roll center, while if the lower arm is angled downwards (at the chassis), it will lower the roll center.
Things get even more muddy to think through when the car is mid corner and you're not just looking at it at static ride height 😉
For the most part, you are correct. The dynamics of a link and/or arm height change is difficult to quantify unless it is being modelled with software. It really comes down to how it feels to drive and lap times.
Really good videos as always. These setup tips are so helpful. Thanks 👍🏼
Keep them coming love the info !!!👍🏼👍🏼
Great video! Thank you for sharing
Keep the videos coming
I’ve been using your 7 adjustments on raceday as my tuning manual. I’d love a video going into more depth on gear diffs and oil. I just switched my b7 to a 2 gear with 60k oil and gained a ton of on power steering.
Fantastic insight as always, keep them coming as club racers like me I’m sure will lap them up 👍
Can you do a video on how to set the front toe ? Or what it does anyway.
Yes shorts would be Awsome Also how can I get your rear shock tower in the us
Going up with the link actually raises roll center
Sorry mate, raising the whole link lowers the roll centre. I plotted it out old school style with intersecting lines to confirm.
@WellingtonIronman I'd like to see how you drew it out
@@benmoisio232 in fairness it can do either depending on the angle of the lower arm, but in carpet setups where the lower arm as angling up towards the wheel, raising the camber link will lower the roll centre. there are diagrams available online that show how to calculate roll centre for a double wishbone setup. Worth bearing in mind that the Hall brothers are also in the process of studying Motorsport engineering, so it’s not like they’re just guessing either.
Can you suggest a good basic carpet setup for the B7 buggy? Track would be EOS carpet, high grip, medium size. Tires would be Schumacher cactus and splinter. I struggle for a while with the car. Finally I got enough steering, but it is hard to drive the car consistent. Thank you! Your videos are very helpful!
When I watch British films... i need closed captioning to understand it..... thanks for the info, even more thanks for being able to be understood
Hey man, you want to talk about your rear shocks being upside down?
Hiya, if you scroll back through our videos there's a few on that topic👍
This is old but a great video..
ua-cam.com/video/tWdRQaz_Xq8/v-deo.html