What is the ideal suspension travel?

[RC MAN]

Hi everyone!

I recently have purchased some new shocks for my rc car because i have added a lot of weight to it so the old ones weren’t up to the task.

The new shocks are bigger than the last ones and jack the car up a bit higher (which is good because all the extra weight was making it scrap the chassis on the floor with the other suspension) but it won’t droop down as much as the old ones, so when you maximise the cars suspension by pushing it all the way down, the chassis will remain about 2.5cm - 3cm above the ground were as before the chassis could just touch the ground.

So i am really just wondering if thats alright or should i take the suspension back and find something that’s got a bit more travel in it.

Cheers,

 

[Chubaka]

You may need to change the oil weight or springs.

Can you post a pic of the car, and maybe the old and new shock side by side? Making sure they are the same length and the overall setup on the car before you spend more money or take stuff back.

2.5 cm is 25mm which is a southern hair under 1 inch. That depends on the size of the car if its good or bad. Of its a 1/5 scale, I wouldnt see any harm. A 1/16 scale or touring car may be an isssue.

 

[tntpoof]

oil does almost nothing for ride height its the springs that do that every chassis is different it will depend on your cg for correct ride height

 

[RustyUs]

You want the chassis to be able to touch the ground when suspension/shocks are compressed.

 

[RC MAN]

You may need to change the oil weight or springs.

Can you post a pic of the car, and maybe the old and new shock side by side? Making sure they are the same length and the overall setup on the car before you spend more money or take stuff back.

2.5 cm is 25mm which is a southern hair under 1 inch. That depends on the size of the car if its good or bad. Of its a 1/5 scale, I wouldnt see any harm. A 1/16 scale or touring car may be an isssue.

You want the chassis to be able to touch the ground when suspension/shocks are compressed.

oil does almost nothing for ride height its the springs that do that every chassis is different it will depend on your cg for correct ride height

Well it sounds like i may have to take them back because this is what it looks like when i push it to the ground as far as it can go.

And here is the ride height with the batterys and everything (i think it is way too high for a 1/10 sct)

What do you guys think ?

 

[RustyUs]

Shocks are probably too long and you can't full use of the shock piston/body. The front & rear dog bones/driveshafts should be parallel to the ground when half way through the suspension/shock travel.
To possibly help myself, and others, understand your situation, tell us the RC platforms you are working on, and the shocks you purchased.

 

[RC MAN]

Shocks are probably too long and you can't full use of the shock piston/body. The front & rear dog bones/driveshafts should be parallel to the ground when half way through the suspension/shock travel.
To possibly help myself, and others, understand your situation, tell us the RC platforms you are working on, and the shocks you purchased.

The platform is a 1/10 sct 2wd that had 90mm shocks and me being stupid decided it was a good idea to buy 125mm shocks that are meant for a arrma senton (the arrma senton part wasn’t that stupid because i need shocks that can support about 3kg of weight, almost the same as the arrma senton weighs). But anyway i definitely think you are right because they feel way to long and hardly have any room to compress.

So i am now looking for 90mm and i found a few that are meant for crawlers. They are meant for a trx4, km2 and a d90. So that means if they are meant for a trx4 which weighs about 3.3kg and a d90 which is about 2.3kg, they should be good to support around 3kg of weight.

Does it matter they are crawler shocks (because i can add some thicker oil to them) and also which one out of these shocks would be the best for my application?

1
https://www.ebay.com.au/itm/194839254541?_trkparms=ispr=1&hash=item2d5d53160d:g:s4oAAOSwxc9iDMON&amdata=enc:AQAGAAACoPYe5NmHp%2B2JMhMi7yxGiTJkPrKr5t53CooMSQt2orsSd3M8ngECaRA0SmyU4KT%2Fnk7%2BKYT5qiqLB0eqyA7foL2OGygTD%2FSn2O6X1UKBLQoSgSL30G3VzlCtxBGaK40L5JhYWGo%2F6jrvQ7sqF4F%2FhayWqXcXkwfNs2xFdbsK2wsmCzMdKbBtPmrshD1g1EMjXIUHegFfg60qm9QUt9iRUl7g24TghvYxCmmNjIbqPOMsDykOJLA3gRl0Z91INHcUIIxT2oimOtuWKwM0XCNwVHzEgCeCIZnJwIuDlnsuKYTOvegaJJqoji4dlfl%2Bv0tWLRDKwg%2F0fcEpL%2FX6Cl%2BeuufLN6DzbSgWwUXsqdiYHs9bb99OfzYKmX31Td%2BFsa7rQ8y6JjJPNKpUV8T8ofpS57IeyR461Z2Yb0MdCicXNxQZnTTjmc%2FwMTDH0iZYQ9kWfW%2Fkuv%2BiXYJ3ZGDTs2SFED8DWvo98b0rT%2BDCAsQX1eJoppU7a44nWAULBnv4L4LZ5JAuKoXLwsnyZO7oS9bLY8WYZ6THXxZ%2B8xmfj7HyujMLTn9HKov4dvXaeJzQ%2FpXuH05nBHoTNzC7mhFk4isxPMf%2BRG8OdaScbGYqRGkDcdm1CwlsCc8KFF3YbfbPfJgcTzBQeuS17BJ3L9Eu7D1Sar%2FuGm7I1y%2Brq9MSoJOn401pCrjSTsaiZGbt1AOZ25dNAkCRzHDAXDQ%2BQw3zCayH9CzhDEtwnJBQxf%2B%2FuVZyXtCx3Z339mBtiD0Xy0oRegQXpo%2BjoymJAn0ex3lscq0vA4r8ld7JDrmoThMPUaJagnOfjhLncAN0fArSaGLiAfRSKNkWC3wnVnNDFCTKuhF5BpgoUCPGMJBLmsPLo8SK9f8jzrFhLTmY4%2BRo1aYcZmiHOQ%3D%3D|clp:2334524|tkp:BFBMzqbmjORf

2
https://www.ebay.com.au/itm/353743058450?_trkparms=ispr=1&hash=item525cbab612:g:2S8AAOSwv11hd6b~&amdata=enc:AQAGAAACoPYe5NmHp%2B2JMhMi7yxGiTJkPrKr5t53CooMSQt2orsSd0ReTLyM7cxPnI6zs468EIJ0XPw6ALOqtDWRgvH4OyOtLxHRMFPja%2FsFSUW3IHGQpg9BsfAIXOjVpNihgxyq6ybLJEgkyTbR9IDfSIPDwM1VTUs2zt6gYMMdEPGqhMzCLTRglasEiFPISkKJjNQdghVAkiUADZDBiCBlQ%2BXR%2F6LJsvF6xmwsKrkhHjgqr%2F2nvYgFjnX4HZfoIiXxreGAx1HJM97VsgnhxbLLNcMdtXWX2EY%2B7sRW6yj0mmlCC7H%2FyKAPXLdfyulpYa0hVt6tmhLTEcrt0%2BAPXhCF8rZ9uRATWGASlHxQCgGNpHCmbixO8sB2eJT9vZvdvI%2BXFO%2BFNv7qITKkdSrma%2Br40h4T3ylwjqdLCg6R0DAQe8YbMAdLgQBhaKJ0hwwWam8P1jTcdmoTD4WDJaZcGHgKCIqSZXW1RyiDvhWKEbDXRzbQcHxfi7n%2FnS%2FSaodbLz4Z7fKC%2BHOOnm7MtWxtHu2eZg5auBQCQaFTlU6gS3gFqqlboyWgrjR7xbaNsG8p02YM%2BIzxWOEloWCp3bT65hc43tMUPQjJjPP2N5y7paQ845dhUIKwnbzlgR0zAgWriCU4Lxu077cZZxzu0RIT8QvmTAg%2Ff3z2Yz9E4wv6y4vkf9D2XDSarTgJ8lVW5tgIf29gRTzKvXps%2Fpz5Yl4OukYVrAyVxSVXxIb396x9yXTebp%2BAToWmGUB7l17iRwwZuLt1vIG3MQ2PzZZC8NyyBxJDR2br9cRaPliVNWtxpPyGxN1JOBNSY%2FgIHXkMOKIUoHqQmCkPJgXe59I4Nj7msWnQM0YdobMZ21ihpfzQB69YbpXO28T%2FE%2F0aGv0McZ2coBPI0WTxvw%3D%3D|clp:2334524|tkp:BFBMwJztjORf

or 3
https://www.ebay.com.au/itm/334165842300?epid=14045618924&hash=item4dcdd6197c:g:0FQAAOSwlnxhVdYS