Rough Terrain - Icon Vehicle Dynamics
Transcription
Rough Terrain - Icon Vehicle Dynamics
ST_1305_32-38-RAPTOR 3/1/13 2:59 AM Page 32 TEXT AND PHOTOS BY BOB RYDER Rough Terrain IMPROVING A 2013 FORD F-150 RAPTOR ord introduced its F-150 SVT Raptor with every intention of raising the bar for off-road capabilities in a production truck. The Raptor was the first highspeed off-road performance truck offered by any manufacturer. Ford designed the Raptor to be 7 inches wider than a base F-150, which allows room for the addition of long travel suspension components. The wider stance coupled with wider fenders definitely gives the Raptor a more aggressive appearance. F The limber factory suspension features internal triple-bypass FOX Racing Shox, the first on any production truck. FOX shocks deliver position-sensitive dampening and extra suspension travel for extreme offroading and a smooth ride while on-road. The front suspension is equipped with unique cast-aluminum upper and lower control arms, and the front steering knuckles and spindles were fitted with BF Goodrich all-terrain 315/70-17 TA/KO tires. The rear suspension is supported by heavyduty leaf spring packs and triple-bypass FOX Racing shocks. These improved suspension components give the Raptor 11.2 inches of front suspension travel and 12.1 inches of rear suspension travel on either the 145-inch wheelbase of the Super Cab or the Super Crew. To take the Raptor’s suspension to the next level of off-road superiority, we decided to roll over to SoCal Super Trucks in San Bernardino, California, where Casey Coughlin introduced us to his ace technician, Ryan Poe, who would be installing the ICON Vehicle Dynamics Ford SVT Raptor 3.0-inch Performance Suspension System Stage 2 front and rear suspension kit. ST SOURCES ICON VEHICLE DYNAMICS 951.689.4266 Iconvehicledynamics.com DEAVER SUSPENSION 714.542.3703 Deaverspring.com SOCAL SUPER TRUCKS 774 S. E Street San Bernardino, CA 92408 909.383.5454 Socalsupertrucks.com 32 MAY 2013 | STREETTRUCKS W W W.S T R E E T T R U C K S M AG .C O M ST_1305_32-38-RAPTOR 3/1/13 2:59 AM Page 33 ROUGH TERRAIN TECH ICON Raptor Front 3-inch Coil-over Shock: • 3 OEM replacement remote reservoir compression adjustable front coil-over shocks • Internal hydraulic bump zone designed for max. G-out control in the last 40% of travel • Easy-to-adjust high resolution compression adjuster allows for fine-tuning adjustments for all types of terrain • Direct bolt-in to OEM location and optimum reservoir positioning for superb heat dissipation and protection • Nitrogen-charged 6063-T832 aluminum 10inch-long hard anodized remote reservoirs • Adjustable ride height from 1-3.5 inches • ICON-engineered Eibach 3 5/8-inch ID chrome silicon steel springs • Oversized 1-inch heavy-duty CNC-machined shock shafts • Extended drop travel and increased overall performance both on- and off-road ICON Raptor Rear 3-inch Bypass Shock: • 3 OEM replacement piggyback reservoir ZETA three-tube bypass rear shocks • Easy-to-adjust detented adjustment knobs • High-resolution bypass valves • High-flow CNC-machined welded bypass blocks designed to increase fluid flow for enhanced performance and high definition tuning • Replaceable bypass tubes that can easily slide into position • Direct bolt-in OEM location with bypass adjustment knobs specially engineered dampened valve stops for quiet and precise operation without the standard bypass loud clicking • Multi-stage cad-plated finish with polished and anodized top cap/rod ends • UHMH-machined shaft and rod end protective shin guards ICON Raptor Front Uniball Upper Control Arms: • Made from 6061 billet aluminum • Precision CNC machined • 1-inch Teflon-lined all-stainless steel uniballs • Easily adjustable on the vehicle for perfect wheel alignment • 17-4 high grade stainless steel uniball adapter pin • High-precision CNC-machined pin provides OEM like fitment • RSMX Teflon-lined 7/8-inch rod ends • O-ring sealed uniball cover cap [01] The ICON Suspension Raptor Stage 2 kit comes complete with CNC-machined 6061-T6 billet aluminum upper control arms with 1-inch Teflon lined stainless steel uniballs and stainless steel adapter pins and a pair of front ICON adjustable coil-over shocks that are remote piggyback reservoir compression and nitrogen-filled. The kit also includes a pair of rear ZETA three-tube external bypass shocks. [02] After [03] The removing the Raptor OEM 17inch cast aluminum wheels wrapped in BF Goodrich A/T LT315/70R-17 tires, we got our first view of the OEM Raptor front suspension featuring FOX gas-filled coilover shocks. lower steering knuckle was smacked with a 3-pound sledgehammer to break the steering tie rod loose, and then it was removed from the steering knuckle. [04] The front OEM brake caliper and brake rotor were removed. Raptor Deaver Replacement Rear Leaf Spring Pack: Deaver spring Raptor leaf packs have 11 thin leaves and one rebound leaf to reduce axle wrap. The Deaver springs are direct replacements for the OEM leaf packs and delete the OEM lift block that is between the leaf packs and rear axle housing. All new hardware is included: 18mm front eyebolts, bushings and U-bolts. Wheel and Tire Fitment: • OEM wheels and tires • Aftermarket wheels: 17-inch and up with up to 5.5-inch backspacing • Aftermarket tires: 35-37-inch W W W.ST R E E T T R U C K S M AG.C O M STREETTRUCKS | MAY 2013 33 ST_1305_32-38-RAPTOR 3/1/13 2:59 AM Page 34 TECH ROUGH TERRAIN [06] To remove the front OEM FOX shocks, the three nuts were removed from the upper [05] The steering knuckle was removed from the OEM upper control arm. shock mounting bracket. [07] After removing the bottom bolt from the lower control arm shock mount, the FOX shock was removed. [08] The OEM upper aluminum control arm was unbolted and removed. [09] To allow more clearance for the ICON coil-over shock, some material must to be ground away from the upper shock mount bracket. [11] The new ICON coil-over [10] The ICON 6061-T6 billet aluminum adjustable upper control arm was slid into position and secured. shock was lifted into position. The top three mounting nuts were threaded and secured on the studs. [12] Included in the kit is a front shock remote reservoir, mounting bracket that was bolted in place. 34 MAY 2013 | STREETTRUCKS [13] Using the mounting clamps that were provided in the [14] An air impact gun and combination wrench were used to kit, the remote reservoir was secured. secure the coil-over shock to the lower control arm shock mount. W W W.S T R E E T T R U C K S M AG .C O M ST_1305_32-38-RAPTOR 3/1/13 3:00 AM Page 36 TECH ROUGH TERRAIN [15] The upper control arm tapered pin adapter and steering knuckle were mated, then an impact gun was used to secure the upper control arm and steering knuckle nut. A cotter pin was inserted through the pin adapter and bent over to ensure the nut would not back off. [16] The hub was secured to the spindle and steering knuckle. [17] Ryan reinstalled the front brake caliper using an impact gun. [18] The tie rod end was [19] The front ICON billet [20] Moving to the rear, a pair of Deaver leaf spring packs replaces the weaker OEM springs. The Deaver kit inserted into the steering knuckle and secured. aluminum upper control arm, ICON coil-over nitrogen-filled shock with remote piggyback reservoir was completed. includes two leaf packs made up of 11 thinner leafs and one rebound leaf per pack to eliminate rear axle wrap. New urethane eye-mount bushings, longer U-bolts and mounting hardware were also included. [23] The OEM spacer block was removed from between [21] The OEM FOX shock was unbolted and removed. [22] To remove the OEM rear leaf spring pack, the Ubolts were removed. [24] Ryan removed the OEM rear leaf spring pack. 36 MAY 2013 | STREETTRUCKS the OEM spring pack and rear axle housing. They will be replaced by the Deaver pack. [25] There are major differences in this comparison image of the [26] A pair of welder clamps much thicker Deaver spring pack (bottom) and the OEM spring pack. secured the OEM leaf spring pack, while Ryan used an impact gun to remove the bolts from the leaf spring pack locating plate. W W W.S T R E E T T R U C K S M AG .C O M ST_1305_32-38-RAPTOR 3/1/13 3:00 AM Page 38 TECH ROUGH TERRAIN [28] Ryan muscles the massive Deaver leaf spring pack [27] The OEM leaf spring locating plate was reused and secured to the Deaver leaf spring pack. [29] The new longer U-bolts and into position and inserts the eyebolts. [30] The Deaver leaf spring pack is mounted and secured. [31] A pneumatic disc sander was used to remove some metal from nuts were secured. the upper shock mount bracket. This allows ample clearance for the ZETA piggyback three-tube bypass shock top cap. [33] After installing the stronger Deaver leaf spring pack [32] Ryan aligns the ZETA racing shock into the modified upper shock mount bracket. A pneumatic impact gun and wrench were used to tighten the upper and lower shock bolts. and ZETA racing shock, the upgraded driver’s side suspension was complete. [34] This shot shows the improved ICON front suspension components: 6061-T6 billet aluminum [35] A new set of Method Racing double standard 17 x 8.5-inch wheels adjustable upper control arm and ZETA OEM replacement remote reservoir compression adjustable front coil-over shock. A stout SoCal Super Trucks front tube bumper and skid plate were installed to protect the front suspension and undercarriage. were powder-coated matte gray with Raptor color-matched bead-loc-style rings covered with BF Goodrich T/A all-terrain 37 x 12-17 tires. 38 MAY 2013 | STREETTRUCKS W W W.S T R E E T T R U C K S M AG .C O M