I am a professional ‘big fancy car’ mechanic of 15 years…. I’ve learned more about suspension this morning than I have from VW, Audi, Porsche material. Whether it be the content or delivery..You’re awesome.
I just bought and installed the vrp pistons yesterday in my 1/10th and 1/8th scale buggies. That's why I'm now watching videos on what pistons can do. Lol, I haven't put them on the track yet.
I believe the groove is for turblace in the piston head. Make the oil do a slight flip up to help slow it down on compression. It took me a month to tune 8 shocks on a Gen 1 T Maxx. 20 years ago. Different spring and oil combos. Till I could drop it from 5 feet and not bounce or slap the bottom. Great learning channel. I'm glad I found it. Keep up the good work.
@ I sorta have been coming up with all of this knowledge already from watching some other people’s videos on the topic and what just makes sense (logical) but your video really drives everything home. Probably 2 months ago I made charts for the few 1/8 scale pistons I have where I calculated the total of all the circumferences of the holes in them for the friction total and I calculated the total open area of all the holes in them too. Now I can just look at them and get an idea of how they might act from one to the other. The one thing I am really interested in is large holes vs small holes. Those other pistons you were talking about are pretty neat too, the angled holes and the extra long edges
Very nicely explained, as always, thanks! One point I didn't really get is why thicker piston affects low-speed damping? high-speed i can see because of more pack caused by the more surface area.
Imagine drinking a chocolate shake through a straw that is 1 in long vs 10 ft long. There is friction along the length of the inside walls of the straw. Same with a thicker piston - friction along the walls of the hole - but the effect on low speed damping is small.
So I run the smaller stuff for his rock crawlers it just works with my job but the other day right I always run a thicker fluid actually super thick in the rear shocks and then I go a little bit thinner in the front and it really helped me coming across this great big crack on the Steep uphill and then as the rear fell across and fell across really slow so it wouldn't jerk me off the wall but 5 seconds later that slow rebound hurt me so definitely looking at stuff a little bit different now
Nice. Thats the point I try to make. If it takes you 5 seconds to get across something you might get stuck that way. If you move fast and only spend one second on every obstacle, then thicker is OK, but that’s not how we drive crawlers mostly. It’s a balance.
I am a professional ‘big fancy car’ mechanic of 15 years…. I’ve learned more about suspension this morning than I have from VW, Audi, Porsche material. Whether it be the content or delivery..You’re awesome.
Wow. I am honored. Thank you. 🙏 👊
I think the tip about bracket testing at the end is the best advice! Thanks for the video!
You’re welcome! I plan to do a full video just on testing protocol.
I just bought and installed the vrp pistons yesterday in my 1/10th and 1/8th scale buggies. That's why I'm now watching videos on what pistons can do. Lol, I haven't put them on the track yet.
Nice. Set your compression like you normal would, then set your rebound faster since you have bi-directional tuning now.
I believe the groove is for turblace in the piston head. Make the oil do a slight flip up to help slow it down on compression. It took me a month to tune 8 shocks on a Gen 1 T Maxx. 20 years ago. Different spring and oil combos. Till I could drop it from 5 feet and not bounce or slap the bottom. Great learning channel. I'm glad I found it. Keep up the good work.
Thank you! I like that groove theory. Seems logical. Turbulence on one side in one direction.
This might be your best video yet. Thanks!
Wow, thanks!
Great stuff. Thanks!
For sure! This was a complicated one.
Awesome video, I am going to have to watch it a few more times to get the info to sink in
Yeah, it’s a lot to absorb. I tried to keep it clear and simple.
@ I sorta have been coming up with all of this knowledge already from watching some other people’s videos on the topic and what just makes sense (logical) but your video really drives everything home. Probably 2 months ago I made charts for the few 1/8 scale pistons I have where I calculated the total of all the circumferences of the holes in them for the friction total and I calculated the total open area of all the holes in them too. Now I can just look at them and get an idea of how they might act from one to the other. The one thing I am really interested in is large holes vs small holes. Those other pistons you were talking about are pretty neat too, the angled holes and the extra long edges
You are on the right track! Just remember the order of impact 1) Hole Diameter 2) Area 3) Edges.
Very nicely explained, as always, thanks!
One point I didn't really get is why thicker piston affects low-speed damping? high-speed i can see because of more pack caused by the more surface area.
Imagine drinking a chocolate shake through a straw that is 1 in long vs 10 ft long. There is friction along the length of the inside walls of the straw. Same with a thicker piston - friction along the walls of the hole - but the effect on low speed damping is small.
So I run the smaller stuff for his rock crawlers it just works with my job but the other day right I always run a thicker fluid actually super thick in the rear shocks and then I go a little bit thinner in the front and it really helped me coming across this great big crack on the Steep uphill and then as the rear fell across and fell across really slow so it wouldn't jerk me off the wall but 5 seconds later that slow rebound hurt me so definitely looking at stuff a little bit different now
Nice. Thats the point I try to make. If it takes you 5 seconds to get across something you might get stuck that way. If you move fast and only spend one second on every obstacle, then thicker is OK, but that’s not how we drive crawlers mostly. It’s a balance.
video suggestion, prons and cons about metal beadlock wheels on lcg crawler
Vs. plastic?
@@BoomslangSuss yes, i am wondering whats your opinions because you are great about your rc scientific videos.👍
That’s a great topic. I’ll add it to the list.