SIMPLE TUNING: Suspension insert positions
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- เผยแพร่เมื่อ 6 เม.ย. 2021
- In this 3rd video of the SIMPLE TUNING series I talk about the suspension inserts. I guide you through terms such as anti-dive, arm sweep, inboard toe vs. outboard toe, along with a few other helpful tricks!
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Thanks Alex - your contibutions to the community are appreciated by many.
Thank you for making these video’s. I’m a novice driver and these videos help a lot!!!!
These videos are awesome. A great resource for the RC community, thank you!
Excellent information. Thank you again!
Awesome videos and super learning mode engaged, thanks Alex H.
Thank you for the video!
Great video, Alex. I have very liked the explaination about sweep arms and 0.5 roll center difference between front and rear. Precious tips.
Thank you!
Thks for sharing.
Thx 🙏🙏🙏
Hi, this setting is ok for 1/8 TT xb8e? Thank you
Thanks Alex, Very useful video for me !
because i have always set up my front toe-out with steering links.
Do you confirm me setting up with arm sweep gives extra-benefit ?
Yes! Using inboard toe vs. on the steering links gives a very different effect. I really recommend using arm sweep (remember to reset your toe to the previous value by adjusting the steering links after changing the inserts).
Great video Alex! May I ask, do those “insert settings” apply to XRAY’s off road lineup as well? Specifically, the XB8 & XT8? Thanks!
I will forward your request to the off-road team guys!
@@hagberg Thank you.
Does anyone know where the roll center actually is on a T4 or similar? I measured my car and came up with roll centers -.075" under the ground in front and back. Removing a shim on the upper linkage moves it to -.015 or -.14 inch depending on inner or outer shim being removed.
My TC has non adjustable plastic blocks. Would it be the same by adding the .5mm shims under the suspension blocks?
yes.
Hi Alexander - my t4 ( 2014 .... 13.5 T .......Tar track ) keeps spinning out in the countering throttle down ( not break ) , punching out the counter is perfect , so i have to. go in slower as the rest but picks up with the countering out.
What do you recommend i do? i played with tyres... dift oils ....ride hight ...shock oils and springs. Like your videos. Thank you
Hi mate, so the problem is too much off power steering? There's several things that you can try to reduce off power steering. Such as:
Less rear droop (higher downstop number)
Stiffer rear spring
Rear shock more stood up
Heavier diff oil
More rear camber gain (upper link lower on inside, higher on outside)
Less bump steer shim
More front weight bias
More rear toe-in
Hi Alex,does setting anti-dive will make add or less front tire overheat? It's the same effect as using stiffer spring? Thanks.
It will reduce the front tire temperature, because you'll have a less sudden weight transfer to the front tires when you go off power.
Great video Alex. Just want to ask if you had a choice between a high roll center with soft springs
or a low roll center with hard springs, what would choose?
9 times out of 10 the higher RC will work better on the T4 and X4 platforms (unless you're on high grip and traction rolling).
@@hagberg Thanks for your reply Alex🙂
Hi Alex,
Thanks for your informative videos.
A question (and maybe a possible video topic).
What's the story behind Progressive rate springs (eg: 2.5-2.8) versus Fixed rate springs (eg: 2.6) ?
(1) What do they do ?
(2) When to use them ?
Thanks in advance :))
Thank you for your comments! Have you seen my video in which I talk about shocks and springs? th-cam.com/video/SPOkZSSaGYg/w-d-xo.html
Thats a great video! Thanks! I just have one question, I run on asphalt with NT1'23 I get confused about toe at rear, your inserts positions is to have rear toe out, why? Its more normal to have end rear toe-in like 2.5 to 3 degrees? Maybe I am wrong. Could you help me solve that doubt please?
We always use toe-in, usually between 2.0 to 3.0 degrees. I don't recommend using rear toe-out for any racing class!
Thanks for your quick answer
Hello I really appreciate your video thank you! I use the anti-dive in the front in FF with 0.5 opening as you show in the video and in the back I at 0.5 down in RR and RF! What do you think of the setup? the setup works well on the track with chicanes and this allows you to accelerate and be stable at acceleration! tanks advance
Hi Phileas, so you're running the RF and RR 0.5 down? I personally don't like this setup, since it makes the car roll a lot over the rear, which not only can hurt your corner speed, but also make the car difficult to drive, at least in the modified class. The team normally don't use this configuration but, if it works for your particular track condition and driving style, then why not? Are you running a high ride height? In that case, a lower roll center can be a good option.
@@hagberg I ride with a ground clearance of 5 at the front and 5.2 at the rear I would try to put the eccentric RR and RF up to 0.5 can it be more suitable in low grip conditions ?
@@phileasbourquard6921 Yes! I can recommend higher.
If both .5 upside down on FF is that not anti dive or do I have to put them in 2 different ways like yours in your example?
To achieve anti-dive, the FF must be LOWER than the FR.
Hi Alex, is it possible to go RR .1 in and RF.1 out? Because the T4 21 Manual says „don‘t use the inner positions“! You use it in your vid .5 inner at RR. Thanks
You can if you modify the arms on the inside, near the kingpin, to achieve clearance. I suggest doing so with a Dremel tool and a small sanding drum.
@@hagberg but with .5 it works? And why Not using thiner shims?
@@sascha8738 yes, with modifying the arm, it will work even in the higher position for the arm. Which shim are you referring to?
Is there a video that you can recommend like this specific to dirt?
You mean for offroad? XB2/4?
Xb4 and SCT
@@DarinDerb I'm afraid that I don't race offroad, so I have no plans for such videos. But a lot of the theory mentioned in the above video is useful/applicable also for off-road!
We need this for the xb4 please
I will forward your request to the off-road team guys!
@@hagberg Thank you 🙏
Hey Alex, thanks for this longawaited video. This is so very helpful. Quick question about what you mentioned how more rear outboard toes make the car narrower here: th-cam.com/video/SRtJdKpCY7A/w-d-xo.html Why is more outboard toe making the car narrower? My understanding is that the more inboard toe-in you have the more pivoted the arms are, thus the car is narrower? Where am I not misunderstanding the concept? Please help out, thanks.
Hi Bill, you're welcome! When you use more inboard toe, the arms are more swept outwards, which pushes the wheels further away from the chassis. Having the arms more straight (more outboard toe) will move the wheels closer to the chassis (track width becomes narrower). I hope that this makes sense!
The arm sweep is more powerful than the antidive then?
I would say that they are equally powerful.
@@hagberg thank you sir
With today's cars having little to zero inboard toe adjustments, I was wondering how to gain more steering on my tiny carpet track. Inboard toe is something I heavily used on my Ta07