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-   -   JConcepts Thread (https://www.rctech.net/forum/electric-off-road/152787-jconcepts-thread.html)

PW 11-18-2013 06:01 AM


Originally Posted by B4TravSC10 (Post 12734160)
Silly question. Does the JC body for the 22 fit mid-motor

Yes, but it doesn't have the cut lines.


Are the JC C4.2 rear bulkheads going to be cheaper than the $50 ae ones?
Press release should be posted this week...

We will be offering a complete rear upgrade kit for $78 (alloy bulkhead, new graphite tower, and alloy wing mounts). The parts will also be available separately and I think the bulkhead will be $24.

We will also be offering the narrow hinge-pin set for around $30

I believe everything is going through QC and packaging now, so hopefully we should be seeing everything very soon.

dirtyrc 11-18-2013 07:35 AM

Narrow rear pivots
 
Paul Could you please explain to us what narrow suspension pieces do? What other changes are needed to make it all work properly, track width, upper turnbuckle position??

t0p_sh0tta 11-18-2013 08:05 AM

They decrease rear toe. Will they be adjustable with inserts, or only come in predetermined values?

dirtyrc 11-18-2013 09:28 AM

Narrow suspension C4.2
 
If that is the case then why is Jconcepts and Ghea marketing them as narrow suspension pieces? From what I understand the narrow toe blocks frt and rear are narrower than the factory toe blocks that come in the kit. PW please corret me if I am wrong.. Based on one of your previous posts you stated that if you narrow the hinge pins you also need to move the inner upper ball stud inboard as well.

David Alberico 11-18-2013 09:56 AM

I did some testing with some inserts and I still like the JC inserts, a lot of guys asked me how I got mine to last, I've had a couple sets in a few different tires and they last quite a while and I was asked how...I actually use scotch guard on them and blocks out the water for when they are washed....Just a tip for everyone. I really prefer the feel of the JC inserts

mxnickj 11-18-2013 10:04 AM

Can anyone explain to me why a set of double dee's (on a RC8.2e buggy) would have strips of the tread pins missing after only 2-3 packs run through them? When you look closely at the tires there is small spots where there is about 4 or 5 pins in a row just completely missing.

JDM_DOHC_SiR 11-18-2013 10:18 AM


Originally Posted by David Alberico (Post 12735633)
I did some testing with some inserts and I still like the JC inserts, a lot of guys asked me how I got mine to last, I've had a couple sets in a few different tires and they last quite a while and I was asked how...I actually use scotch guard on them and blocks out the water for when they are washed....Just a tip for everyone. I really prefer the feel of the JC inserts

Nice tip!! thanks..:tire:

t0p_sh0tta 11-18-2013 10:40 AM


Originally Posted by mxnickj (Post 12735661)
Can anyone explain to me why a set of double dee's (on a RC8.2e buggy) would have strips of the tread pins missing after only 2-3 packs run through them? When you look closely at the tires there is small spots where there is about 4 or 5 pins in a row just completely missing.

Usually only see that when jumping pipes, or powering off of them. The absolute fastest way to ruin a tire IMO.

PW 11-18-2013 11:21 AM


Originally Posted by dirtyrc (Post 12735179)
Paul Could you please explain to us what narrow suspension pieces do? What other changes are needed to make it all work properly, track width, upper turnbuckle position??


They decrease rear toe. Will they be adjustable with inserts, or only come in predetermined values?

If that is the case then why is Jconcepts and Ghea marketing them as narrow suspension pieces? From what I understand the narrow toe blocks frt and rear are narrower than the factory toe blocks that come in the kit. PW please corret me if I am wrong.. Based on one of your previous posts you stated that if you narrow the hinge pins you also need to move the inner upper ball stud inboard as well.
Basically what happen is the C4.2 comes with a wider inner hinge-pin width compared to the original C4.1, but some of the drivers still prefer the C4.1 rear suspension geometry. So we are making narrower hinge-pin mounts to have the option of the C4.1 geometry on the C4.2 (the toe-in stays the same at 3deg). The wider pin mounts basically lower the RC and the narrower pin mounts raise the RC. Our new rear tower has the corresponding inner camber-link mounting locations for either hinge-pin geometry.


Can anyone explain to me why a set of double dee's (on a RC8.2e buggy) would have strips of the tread pins missing after only 2-3 packs run through them? When you look closely at the tires there is small spots where there is about 4 or 5 pins in a row just completely missing.
Like t0p_sh0tta mention; most of the time it happens when the buggy gets hung-up on pipes and excessive throttle is used to get off the pipe. There has been occasions when it happens on the very first run without any pipe jumps; this could be a defect in the tire and you should contact JConcepts directly - [email protected]

Haulenass210 11-18-2013 12:09 PM

stadium truck tires
 
how are bar codes mounted on the wheels. little y's out or big y's out? havent mounted truck tires in a long time, forgot this lol

fq06 11-18-2013 12:14 PM


Originally Posted by Haulenass210 (Post 12735992)
how are bar codes mounted on the wheels. little y's out or big y's out? havent mounted truck tires in a long time, forgot this lol

Small "y" to the inside has more side bite.

PW 11-18-2013 12:17 PM


Originally Posted by Haulenass210 (Post 12735992)
how are bar codes mounted on the wheels. little y's out or big y's out? havent mounted truck tires in a long time, forgot this lol

"Y" = more side-bite
"u" = less side-bite

Haulenass210 11-18-2013 12:38 PM


Originally Posted by PW (Post 12736011)
"Y" = more side-bite
"u" = less side-bite

Should the front and back be mounted different?

PW 11-18-2013 12:40 PM


Originally Posted by Haulenass210 (Post 12736086)
Should the front and back be mounted different?

Driver/truck preference; more steering, less steering, more rear bite, less rear bite....

3srcracing 11-18-2013 02:10 PM

How much will the C4.2 Rear Bulkhead cost?


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