Diff it tent to leak right on the outdrives. use associated green slime and don't over fill the gear diff.

Thinking about selling my project 4x with spare parts. What would something like this be worth? Unfortunately, we no longer have road track near us, so it'll just sit on the shelf.

Does anyone have a good setup for small, gray ozite carpet track, mid traction using Sweep 28 spec tires. We run 21.5 and fastest TC lap is low 7 Seconds to low 8 seconds for A-B mains. Thanks.

check petitrc for setup

Thanks.

Man, after fixing leaks, rebuilding and resetting this car, it drives great. A couple more tweaks and it should feel better for me. My fast laps are better than my Mugen MTC1 7.754 and Xpress XQ1 8.024. I did a 7.379 with the 4x. I enjoying learning this car. Why did serpent stop making this thing?!

For Sale $150.00 shipped 48 USA

Anyone know if someone produced a aluminum MID motor chassis for this car?
Thanks

Arrowmax made a mid motor chassis. I’m not sure if it still available.

That is a carbon chassis, I am looking for a Aluminum mid motor chassis.

serpent usa has the carbon mid motor in stock last i check

Nope there is no aluminium mid-motor chassis. I liked the Arrowspace chassis so much I asked them if the were planning a mid-motor one and they answered me that in fact a new car was coming (it was weeks before the X20)...

Is that this one?
https://www.rcjaz.com/arrowmax-am910...m-p-16260.html
Does this just fit into Project 4x? W/O any other parts? I haven't raced for years and just noticed there's a new chassis X20. Thanks.

Thanks, Serpent USA has 2 kits, and Arrowmax has one left. I talked to Arrowmax and they only offered the mid car with a carbon chassis.

Thanks

No, you would need a different top deck, motor mount, center pulley assembly. The kit also includes a belt tensioner, not sure if its required as the X20'21 actually eliminated theirs.

if you send a carbon chassis to KrazedBuilds he will make a very nice aluminum one for you