JConcepts Thread
So this is going to be an odd question, but figured give it a shot.
A track here for modified classes has what we call a "legacy" tire rule, basically you have to run non-carpet style tires on the carpet for modified. things like clay tires, etc, treads are fine but have to be soft tires. Right now looking at some things that appear to work, stuff that is softer than clay appears to grip better even if sauced with sxt 3.0 (was all over the place with another brand clay tire).
Anyway, I am a bit intrigued by the Rehab 1/10 buggy tire versus the Sprinter since it has a very dense pin pattern, so could last longer wear wise versus something like a jconcepts flipout (used these in the past years ago, felt like a pinned carpet tire but of course soft and fast wear).
My question is this, when looking at the available compounds, Blue versus Green, haven't not used Blue in a LONG LONG time, how does it compare softness wise compared to Orange clay compound?
A track here for modified classes has what we call a "legacy" tire rule, basically you have to run non-carpet style tires on the carpet for modified. things like clay tires, etc, treads are fine but have to be soft tires. Right now looking at some things that appear to work, stuff that is softer than clay appears to grip better even if sauced with sxt 3.0 (was all over the place with another brand clay tire).
Anyway, I am a bit intrigued by the Rehab 1/10 buggy tire versus the Sprinter since it has a very dense pin pattern, so could last longer wear wise versus something like a jconcepts flipout (used these in the past years ago, felt like a pinned carpet tire but of course soft and fast wear).
My question is this, when looking at the available compounds, Blue versus Green, haven't not used Blue in a LONG LONG time, how does it compare softness wise compared to Orange clay compound?

To answer the question, blue compound is the same rubber as green, just slightly firmer. Orange was our original hot weather hard compound for sugared or grooved outdoor tracks and doesn't relate to clay at all.
Gold (soft) and Silver (super soft) are our clay compounds.
Wow....Seems to be a bit of a mess not just running carpet tires 
To answer the question, blue compound is the same rubber as green, just slightly firmer. Orange was our original hot weather hard compound for sugared or grooved outdoor tracks and doesn't relate to clay at all.
Gold (soft) and Silver (super soft) are our clay compounds.

To answer the question, blue compound is the same rubber as green, just slightly firmer. Orange was our original hot weather hard compound for sugared or grooved outdoor tracks and doesn't relate to clay at all.
Gold (soft) and Silver (super soft) are our clay compounds.
From what you all saw what was a setting you liked when doing that? (ex- 2 pin rows outer trimmed, 1 inner, sidewall glued, etc). Excited to see these in action since one of the tracks you all tested at seems to have a pretty good turnout for 1/8 E buggy turf racing
Unfortunately I wasn't involved in the testing, so not sure the details. It will just be an option depending on particular conditions and personal preference.
Tech Apprentice
Joined: Jan 2023
Posts: 70
From: Indianapolis
Theoretically, the TLR 22 5.0 turnbuckles could work for Xb2 & XB4. Stock the TLR turnbuckles measure 50mm vs the Xray 55mm and the Lunsford set used 52 & 57mm for Xray - the 57mm on the rear caused some binding if using a short rollcenter locations
How much of a difference in offset are the JCO3381 wheels versus the JCO3353 wheels and which of these wheels are considering the go to ones to use with the Tekno EB410.2 and Yokomo YZ4SF2?
I believe the 3353 wheel is 1.5mm wider per wheel, but I'm not sure of the specs for the Tekno or Yokomo.
thanks for the info. I'll have to sit down and measure the width sometime for comparison. with Yokomo looking like they at times are using Jcon stuff on their cars, be curious if the wheels they make are just jcon wheels with a yokomo badging.
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