Got nothin much to say my Q12 is in final production hope to make the team proud.:D

RC12L3 Setup Questions
 

I just put one of these together. It's the standard kit. I am running a four saddle pack and a 27T stock motor. I am running the stock foams. I believe they are Jaco's but I'm not sure of the compounds at the moment. I can't get the thing to stop pushing in our two high speed sweepers. I switched from the .059 tbar to the .075 tbar to stiffen the rear end. I also moved to the firmest rear spring I have (blue) and tightened the preload. The only thing I haven't checked yet is the front springs. Tonight I will go as light as I can with them. I just can't seem to keep enough weight on the front end while cornering under acceleration. Anyone have any ideas. I am new to the hobby in general and this is my first 1/12 scale.

Well there is some very good advice been thrown around here and I will take note of it all then make my mind up. I run a KR 8x2 in my CRC. I normally at the pointy end of the field and the car is hooked up and fast. But I have been thinking that the Kr is not the motor for 1/12 scale. It seems to be very hungry on power and runs out of high end revs. But when you think about it laydown brushes will give you touque not revs. So having said that the stand up brushed motor would be better.

I will try a TI again and compare but I know the TI will be better or a D5 with a slotted brush to reduce the surface area. At the end of the day a very light finger will improve you rollout and overall speed and runtime in 12th.

A question what type of rollout and wind motor you guys been using on tarmac outdoor track.

Coxy.

Re: RC12L3 Setup Questions
 

I bet your using green rears that are way too soft. Do you run on carpet of black stuff. Sounds like you diff could be to tight and this is making it push as well.

anybody else to help him out.

Coxy.

RC12L3 Setup Questions
 

I started out with the green spring (kit standard). As noted, I have sice switched to the blue (heaviest) spring. I am running on a high traction outdoor asphalt road course.

Tires make all the difference in the world, also check your ride height, the rear may be to low

Your front end could be shimmed too tight, or it could be binding. Take the front hubs off, and use a 1/8" drill bit to ream out the hole the kingpin goes through. Do this by hand, until the block moves smoothly on the kingpin.

After that, reinstall everything the way it was. Then set the car on a table, and push on a front body post. If the opposite rear tire comes up, you have too many shims on the kingpin. Remove one, and do it again. DO that until the rear tire doesnt come off the ground when you push the body post. Then, lift the same body post. If the chassis lifts before the front tire, add a small shim to the kingpin. You can use motor shims. Keep doing that until you have the chassis lifting at the same time as the tire, and the rear tire not lifting when the suspension is compressed.

Repeat for the other side. What that does is allow the front suspension to work, your problem is likely that when you accellerate, one of your front tires lift because of binding or tight shimming.

Here's my asphult setup ...

TRC pink rear's
TRC purple fronts
.2 front springs
silver center spring
50 wt
3.5 mil ride height front and back
1 degree front camber
0.5 degrees toe out

that should get you in the ballpark !!

also check your dual rate, you may need to dial some more steering in :) :)

Question
 

I got myself a chassis, just like the Yokomo's wherein the batts are placed differently. I got it from RCMODEL.com the chassis is neat but way to thin thus flexes so much, which made me go wild in sweeping turns.
http://shopping.rcmodel.com.hk/produ...oducts_id=1044

Question is: can i place carbon fiber cut outs and screw them onto the chassis to make it stiffer?

Just a thought?

I know i should o back to the old chassis but want to try it out? has any of you done this procedure wherein you reinforce the chassis with carbon fiber plates?

Thanks and happy racing!

Lem

jcrouse -

I'm relatively new to 1/12, but based on my experience and the advice I've received from seasoned racers . . . it sounds like, possibly among other things, you should use different tires. A lot of racers use (Purple fronts) and (Grey rears) on carpet, regardless of the manufacturer. The kit tires are Jaco, and don't seem to be up for competition.

Hopefully it all comes together.

John R.

jcrouse what body are you using also adds to the equation also is youre ride hieght lower at the rear how much preload do you have
on the center spring are you running tweak screws are you putting tire traction on the front tires and how much. what are your toe angle whats your caster setting (one shim front or rear or o deg block )
you ll need to list what you have your car set up with to see what your starting with once we know then we can tell you what might help you to accomplish to be dialed

lem 2
i ran the yokomo yr12 on asphalt the car works great but youll need to add the a brace in between the front suspension caster blocks as that found on the 12l3 and youll also need to add a t-plate brace.
youll need to machine the dampener cross brace post to make it fit. as for carpet
i took an old back up chasiss and shoe glued on for carpet but since then i went ahead and got doug powells quad 12 and havent had a regrete the car for me is diled right out of the box on carpet it was fast this weekend i'll be running it on asphalt all i will do is set it up softer and let you know how it works . the conversion is cheap if you already got the yoke he has the chasis in ssg aswell look in the previous posts and drop him an email dpowell is his screen name.

also stormperson your right 19t is fast enough we have been racing 4 cell 19 turn all seanson here and the cars are fast enough. and dave did a hell of a job at one point he was leading josh in the qualifiers but kept dumping dam kr's:sneaky:
guys if your starting out get your self a 19t motor if your running in modified and you will be surprized that the car is fast enough and controlable until you get that your consistant and the chasiss is developed to the point no matter what you do your times dont get faster (note each lap is within 2 to 3 tenth for the whole race ) and the car is dialed them maybe youll be ready for a mod motor.

Roll Out Question:

I recently tried a Monster Stock/ 4 cell in my 1/12 scale car. Can anyone give me a basic roll-out for this motor? Track is asphalt, I'm guessing at 125 x 75 road course (So Cal Raceway). Looking for a basic number range to start with......motor is box-stock.:nod: :D Thanks.

Can someone post a link for the quad 12?