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R/C Tech Forums Thread 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


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Old 01-02-2017, 05:50 PM   #181
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If some one is looking for setups, there is some here: http://site.petitrc.com/reglages/ser...Serpent4X.html
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Old 01-02-2017, 06:18 PM   #182
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I am running 17.5 blinky on a medium size indoor carpet track running jack blues. Anyone have a good recommendation for a starting fdr.
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Old 01-02-2017, 06:46 PM   #183
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Does anyone have a spare heave damper they want to sell? Thanks.
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Old 01-02-2017, 07:34 PM   #184
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Originally Posted by tunerjetta29 View Post
I am running 17.5 blinky on a medium size indoor carpet track running jack blues. Anyone have a good recommendation for a starting fdr.
Medium I'd say 4.20-4.0. I'm on a small track and way down at 4.59. Hats with a new actinium v2.
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Old 01-03-2017, 04:06 AM   #185
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Could anyone tell me if this car run well in blinky class on carpet track?

Best regards
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Old 01-03-2017, 10:35 AM   #186
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Quote:
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Could anyone tell me if this car run well in blinky class on carpet track?

Best regards
Its more than capable, maybe one of the best cars out there! It placed 6th at the US indoor champs in stock tc, 4th and 5th in pro stock and won open stock at the Stock Wars in December.
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Old 01-04-2017, 08:52 PM   #187
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I love the car for blinky 17.5 and USGT. It is very consistent and reacts well to changes.
I think the design is the coolest by far, and it's been very durable!
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Old 01-11-2017, 11:44 AM   #188
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Default I was concerned until...

I watched the YouTube videos from David Ehrbar. Wow, very nice design that makes a ton of sense.
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Old 01-17-2017, 05:09 AM   #189
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Hi everyone just wanted to provide some feedback on the Alu Chassis from Mc Factory since I ran it this weekend in Modified and 17.5..

The two big differences with the stock chassis is that it's much stiffer and a little heavier (by 15g). Both of these characteristics are an advantage on high grip carpet. For the extra weight, I compensated with Aluminum screws on top (all the ones screwing downwards). One of the key things here is that some weight was transferred down under the Center of Gravity of the car giving it different roll characteristics.

The main differences on the track are faster rotation overall and the car enters more agressively into the corners.

This is definitely a great option for Carpet Tracks...

Edit: I think it calls for a slightly softer suspension setup. I'll test more things this weekend.
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Old 01-17-2017, 05:48 AM   #190
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Thanks dude, im glad it worked well for you.. i have more time by far making the 4X plates than anything else.
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Old 01-17-2017, 07:44 AM   #191
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Quote:
Originally Posted by Racermac73 View Post
Thanks dude, im glad it worked well for you.. i have more time by far making the 4X plates than anything else.
You got it man.. Thanks for making great products!
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Old 01-17-2017, 09:19 AM   #192
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Quote:
Originally Posted by celt View Post
I watched the YouTube videos from David Ehrbar. Wow, very nice design that makes a ton of sense.
Yeah the videos really helped understand just how easy the car is to work on and setup. I absolutely LOVE my 4x. Its the best TC I've ever driven and had the pleasure to work on.
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Old 01-22-2017, 04:19 AM   #193
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Default ride height

Gents,

Finished the build, no issues.

I did go back and decrease the pullrod rod length from 15.5mm to 15mm to get the ride height right in the middle of the range I wanted.

What is the result in changing the chassis connecting rods?
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Old 01-22-2017, 07:24 PM   #194
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Quote:
Originally Posted by celt View Post
Gents,

Finished the build, no issues.

I did go back and decrease the pullrod rod length from 15.5mm to 15mm to get the ride height right in the middle of the range I wanted.

What is the result in changing the chassis connecting rods?
Hi! If you mean the rods that are horizontal/parallel to chassis, the result would be the same. They are just harder to reach.
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Old 01-23-2017, 05:45 AM   #195
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Quote:
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Hi! If you mean the rods that are horizontal/parallel to chassis, the result would be the same. They are just harder to reach.
Thanks Joe...

My solution was easier, I'm an idiot.

I couldn't figure out why ride height at the front of the car was exactly 1mm off the rear, with all dimensions being the same. I switched heave shocks rear to front and back again...no dice, the front sat 1mm lower than the rear.

Could only be one thing...

In walking around the manual, I made the front horizontal pushrods 15mm rather than the specified 14mm...just missed it - 1mm off.

Perfect! Ride height and tweak are spot on. Geez...
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