Tech questions-- Slipper clutch, shocks, tire foams..

[FOXX]

First of a few questions I have is, do the MRC Pros have slipper clutches built in? I have a stock motor and find that in a bind the motor will stop. Is this normal or do I need to set the slipper (if there is one)?

Second question is when you outboard the shocks, is it usually on the top or the bottom? I've read where guys have done one or the other but still unsure. I have an outboard kit and took it off due to lack of suspension articulation. Additionally, I see where some even put limiters in their shocks. I thought the point to rock crawling was maximum suspension articulation. Like water over rocks.

Tire foams. I took mine out and see a benefit to not running with foams and wonder if anyone does this? Opinions welcome.

[papabash]

Originally Posted by FOXX

First of a few questions I have is, do the MRC Pros have slipper clutches built in? I have a stock motor and find that in a bind the motor will stop. Is this normal or do I need to set the slipper (if there is one)?
It does have a crude slipper but I don't suggest using it. If your motor stalls during a bind, it's simply because the stock motors are far too weak for any real crawling. Get a different motor, you'll be glad you did.

Second question is when you outboard the shocks, is it usually on the top or the bottom? I've read where guys have done one or the other but still unsure. I have an outboard kit and took it off due to lack of suspension articulation. Additionally, I see where some even put limiters in their shocks. I thought the point to rock crawling was maximum suspension articulation. Like water over rocks.
You outboard the shocks at the bottom, I've never seen anyone do it at the top. Too much articulation will allow your crawler to twist back on itself. Limiting your shocks can be of great benefit depending on what shocks/links/chassis/......... you are running.

Tire foams. I took mine out and see a benefit to not running with foams and wonder if anyone does this? Opinions welcome.
Nobody I know of who actually comps with their MRC's runs without foams. You need foams to give you better side-hilling and to keep the tire from wadding up. I like to run the C.I. single density softs in front and mediums in back. The softs in front help me to grab more steering and get over ledges while the mediums in the back help me to get up steeper climbs.

Hope this helps.

[minicrawler1]

I keep reading about the 'outboard kits",could someone enlighten me please?
I know that this is meant to put your shocks more outward,but is there a "kit" available to do this?

[JCSXJ]

Originally Posted by minicrawler1

I keep reading about the 'outboard kits",could someone enlighten me please?
I know that this is meant to put your shocks more outward,but is there a "kit" available to do this?

Yes, you'll need to order this.
Losi: Outboard Shock Spacer Kit: MRC: Losi (LOSB1446)

[the_ghetto_rig]

Originally Posted by JCSXJ

Yes, you'll need to order this.
Losi: Outboard Shock Spacer Kit: MRC: Losi (LOSB1446)

Or you could go to your local home improvement store, or maybe ACE hardware, and pick up some 2-56 x 3/4" stainless screws and do it yourself for 56 cents.

[JCSXJ]

Originally Posted by the_ghetto_rig

Or you could go to your local home improvement store, or maybe ACE hardware, and pick up some 2-56 x 3/4" stainless screws and do it yourself for 56 cents.

I actually went this route myself. I went to my LHS and got the 2-56 x 3/4" screws, got home and could not get them to slide thru the shock eyes. They were just a hair too big. I picked up a second pack at a different LHS and ended up with the same results. I ended up taking a trip to ACE hardware, picked up some 2mm screws and they worked perfect. This is on a RTR, not sure if the shock eyes are different on a MRCP.

[Robotboy]

2mm is the ticket

[the_ghetto_rig]

Originally Posted by JCSXJ

could not get them to slide thru the shock eyes. They were just a hair too big.

Yup, I had to bore out the eye a bit with a dremel. Sorry I forgot to include that in my post. I like having the 2-56 as opposed to the 2mm, it just feels beefier (y'know, for a little tiny screw )

[down south crawler]

whats the biggest spur i can get for my mrc pro, just upped the motor to a traxxas easy start motor,some where between a 380 and a 540, but the stock 10 tooth pinon wont reach and its got way to much top end.

[the_ghetto_rig]

Originally Posted by down south crawler

whats the biggest spur i can get for my mrc pro, just upped the motor to a traxxas easy start motor,some where between a 380 and a 540, but the stock 10 tooth pinon wont reach and its got way to much top end.

Wow, that's a big motor! I tried a few different motors, but found the Losi Insane to be the best..great drag brake and great wheelspeed. I use a 10T pinion with a Hot Racing 62T spur...

[down south crawler]

Originally Posted by the_ghetto_rig

Wow, that's a big motor! I tried a few different motors, but found the Losi Insane to be the best..great drag brake and great wheelspeed. I use a 10T pinion with a Hot Racing 62T spur...

Yeah its a Hemi but seems like it acctually works good. The added weight helps too. where can i find hot racing parts at ?

[USMCRay1]

I bought a 62 tooth on ebay.