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Serpent Project 4-X

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Old 11-21-2016, 06:09 AM   -   Wikipost
R/C Tech ForumsThread Wiki: Serpent Project 4-X
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Introduction
This is a wiki page for the new and very interesting concept 4-X from Serpent. This is wiki is meant to develop and grow as more is understood about the car.

Serpent's Product Page - http://www.serpent.com/product/400030
The 4-X Development Story - Here

Manual - Here

Spring Chart
SOFTEST
  • 401705 Spring white C4.4 4X (2)
  • 401706 Spring yellow C4.9 4X (2)
  • 401707 Spring orange C5.5 4X (2) = kit
  • 401708 Spring red C6.3 4X (2)
  • 401709 Spring pink C6.9 4X (2)
  • 401710 Spring blue C7.6 4X (2)
  • 401711 Spring purple C8.4 4X (2) = kit
  • 401712 Spring greenC9.5 4X (2)
  • 401713 Spring grey C10.9 4X (2)
  • 401714 Spring black C12 4X (2)
HARDEST

Build Tips

RCBuilds.net Build, tip guide and youtube video - http://www.rcbuilds.net/builds/onroa...nt-project-4x/
Heave + Roll Damper Build Tips
Pivot Ball Nut Tip

Setups



Setup Tips

Ride Height Adjustment
Adjusting tweak with roll damper
Usage of washer on lower arm
Tuning ARS


Option Parts List


Social Media

Facebook 4-X Group

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Old 04-21-2019, 06:04 PM
  #781  
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Originally Posted by Airwave View Post
Pretty sure that without oil in roll dampers, you are back to a "standard" anti-roll bars effet.

Could be way more predictable, but way less efficient also. On the video, you car seems not to roll at all, what kind of springs are you using ?
I'm using the kit roll springs (purple)... the video doesn't show the chassis roll very well but it was leaning decently in the corners.
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Old 04-21-2019, 06:50 PM
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Originally Posted by DavidNERODease View Post
I'm using the kit roll springs (purple)... the video doesn't show the chassis roll very well but it was leaning decently in the corners.
have you tried that setup in a faster class ?
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Old 04-21-2019, 07:06 PM
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Originally Posted by Airwave View Post
Pretty sure that without oil in roll dampers, you are back to a "standard" anti-roll bars effet.

Could be way more predictable, but way less efficient also. On the video, you car seems not to roll at all, what kind of springs are you using ?
why would it be less efficient ?
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Old 04-21-2019, 08:09 PM
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because on other cars you have the dampers to dampen the spring and sway bar.
This is more or less segments on the Project 4X, therefore running without oil in the roll dampers could induce slide hopping in the corners.
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Old 04-21-2019, 08:12 PM
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Originally Posted by DavidNERODease View Post
I'm using the kit roll springs (purple)... the video doesn't show the chassis roll very well but it was leaning decently in the corners.
You should try red roll springs in front. This should give you the rotation your are looking for.
We are running orange heave springs front and rear. on the roll we run red front and purple rear.
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Old 04-21-2019, 08:52 PM
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Originally Posted by silden View Post
because on other cars you have the dampers to dampen the spring and sway bar.
This is more or less segments on the Project 4X, therefore running without oil in the roll dampers could induce slide hopping in the corners.
but wouldn’t a stiffer spring on the roll damper help While keeping the damper oil-less ? Or the dampers most have oil ?
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Old 04-21-2019, 09:06 PM
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Originally Posted by Ricardo_d99 View Post

but wouldn’t a stiffer spring on the roll damper help While keeping the damper oil-less ? Or the dampers most have oil ?
We‘re running 2-3k in the roll damper.
Elias car has a lot of rotation.
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Old 04-21-2019, 09:22 PM
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Originally Posted by silden View Post

We‘re running 2-3k in the roll damper.
Elias car has a lot of rotation.
Have you guys try 1k and lower ? I see Naoki’s setup has 3k for the front and 5k for the rear.
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Old 04-21-2019, 09:43 PM
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Originally Posted by Ricardo_d99 View Post

Have you guys try 1k and lower ? I see Naoki’s setup has 3k for the front and 5k for the rear.
No we haven’t. He ran on asphalt and 450/550 cst in the heave.
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Old 04-21-2019, 09:49 PM
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Originally Posted by silden View Post

No we haven’t. He ran on asphalt and 450/550 cst in the heave.
Yeah and 3k & 5k for the roll dampers, I think for roll dampers 1k should be the maximum and take care of the rest with the roll spring and other adjustments.... using too thick of oil makes the car no roll naturally or a predictable way
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Old 04-22-2019, 07:14 AM
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Originally Posted by Ricardo_d99 View Post

have you tried that setup in a faster class ?
No. I have only used the car in USGT (21.5) - mostly on the small tight grey Ozite track in the video. I did run the car at the Canadian nationals (huge CRC black with new subfloor) The car was much better on that track (with heavy roll damper fluid).
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Old 04-22-2019, 01:33 PM
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Originally Posted by DavidNERODease View Post
No. I have only used the car in USGT (21.5) - mostly on the small tight grey Ozite track in the video. I did run the car at the Canadian nationals (huge CRC black with new subfloor) The car was much better on that track (with heavy roll damper fluid).
makes sense , basically the oil works like a roll center adjusment... thick-oil= Lower roll center and thinner oil= higher roll... so makes sense to go somewhat thick on the roll damper and soft in the spring.
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Old 04-22-2019, 02:15 PM
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I really hope there will be a conversion kit (upgrade to Pro) because I really like the design of the new upper deck and the new rear suspension. I'd also like to see a stiffer floating servo mount because it's a wet noodle compared to the solid one piece designs on my Destiny and Yokomo. This has to be reducing steering response.
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Old 04-22-2019, 02:19 PM
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Originally Posted by DavidNERODease View Post
I really hope there will be a conversion kit (upgrade to Pro) because I really like the design of the new upper deck and the new rear suspension. I'd also like to see a stiffer floating servo mount because it's a wet noodle compared to the solid one piece designs on my Destiny and Yokomo. This has to be reducing steering response.
I’m in the process to releasing some options for the car.
One will be a stiffer servo plate and one to mount it on the right.
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Old 04-22-2019, 02:56 PM
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huh oh you wanna play shorty? Good idea!

The most interesting part in the Pro is not having the new upper deck (pretty sure that vertical one was better with aluminium chassis) but it is also about the difference between front and rear. The rockers are different, the roll damper cf support are different, the roll center is now different...

Goddam Post, where is mine?!
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