iwantoffroad
Rock Crawler
My Competition Rig “Hayward”
My Bender Sw2 buildup
Start with the best
-Sw2 chassis and there is no turning back
Electronics
Rooster –
• With silicon sealing every edge
• Ballooned
• Custom mount to chassis braces and velcro
Tq3 –
• Rear steer mod from http://www.thecrawlerstore.com/electronics.html
• Lexan antenna mount
• Mounted with stock TLT upper deck and Velcro
Hitec 645mg servo –
• Dielectrical grease on the circuit boards and wires
• Ceramic grease on the gears
• Light oil on the bearings
• Then sealed the case with silicon
• Aluminum servo mounts
• Servo arm shaved to clear the axle
• Longer screw to go through the servo arm to hold it in place.
Integy 55t lathe motor -
• With hard brushes
• Freshly cut comm
• Light oil on the bearings
• Bearings from a 19 turn motor that I had as a spare
Battery packs -
• Sanyo 2400 with dean connectors
• Industrial strength Velcro on top of the servo and under the battery pack
• Also held in place by Velcro straps
• There is a piece of plastic in the shape of an L that the battery rests on and its fitted to limit how far the battery goes so it doesn’t hit the motor or the drive shafts.
• And a OFNA 1400mah 5 cell receiver hump pack
• Run times
- Sanyo 2400 last around 1:30
- Sanyo 2400 and 1400 RX pack 1:45
Suspension
Links
• 4 links setup
• 50/50
• Traxxas Turnbuckles 105mm for the T-Maxx for the lower links front and rear
• Upper links are from the lower links on the stock TLT with Traxxas rod ends.
Shocks
• Blue aluminum Durtrax evader rear shocks on all four corners
• Losi white springs on all four corners
• Team Associated 40 weight on the front and right rear shock
• Team Losi 70 weight left rear shock to prevent torque twist
• Fuel tubing to limit the travel in the shocks so that the tires don’t rub on the fenders. I didn’t want to hack up the body.
• Shocks mounted with stock TLT cantilever mounts with o rings added to space it out
Drivetrain
Stampede Tranny
• Full Bearings
• Spur adapter
• Aluminum idler gear
• Differential locked with hot glue
• 84 tooth 48pitch spur gear
• 12 tooth 48pitch pinion gear
• Which equals a 7.0 drive ratio
• Stampede drive shafts
• The drive shafts stretched with 2 females on the outside and a male driveshaft in the middle with foam inside the driveshaft to space it out correctly below is the link to help you out
• http://www.rccrawler.com/forum/showthread.php?t=41181
• Metal yokes with the little nub filed off on the axle end and plastic yokes on the tranny end
Axles
• Axles locked with hot glue
• Bushing because this rig is in the process of being water proofed and bearings would rust pretty quickly
• Metal yokes
• Blackfoot axles with custom spacers to fit
• And the black foot axles have been filed down to increase steering angle
• Shimmed the axle
• Going to drill thought the pinion gear to have a pin go all the way through and hold the metal yoke
Wheels
• Pede fronts on both front and rear
• Inner lip cut off
• Wheel weights 2 oz on the fronts inside the rim
• Wheel weights 2 oz on the rear inside the rim
• Star pattern in the foam
• Shallow nuts to get as much thread through the nut coming out of black foot axle shafts
Tires
• 2.2 Swamp Dawg
• Siped
• Facing the rear
• Buggy grip to soften them up a little bit
Body
• Hpi 1973 Ford Bronco Body for T-Maxx/Savage
• Painted with Tamiya black spray can
• Body mounts 22gauge sheet metal brackets drilled and filed down then body post attached to that with little square pieces of foam at the top with body clips with zip ties and fuel tubing to make it easier to grab the body clip also carbon fiber little circles cut out with a hole in the middle to put between the body and the body clip
Dimensions
• Wheelbase – 12.55 inches
• Track width – 10.55 inches
• Chassis clearance – 3.0 inches
• Height with body on – 11.0 inches
weight 5.5 pounds
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