We have been working on a 2006 RCLB LBZ for a while now. The guy bought it from another customer in the parking lot and left it with us wanting it to run 6s in the 1/8 when he got it back. It was stock except intake and exhaust. After talking to him, we concluded he did not want a built motor or to run the stock motor on the brink, so we laid out a build plan to get to his goals with the least power possible. We had a GTS fiberglass body here that another customer backed out on so the first focus was weight reduction. We did fiberglass doors, front bumper, front clip, bed sides, and tailgate skin. We got rid of any unnecessary crossmembers, mounts, etc. on the frame. We fully deleted the HVAC system. Couldn't talk the guy into going short bed and getting a better weight bias, so it stayed long bed. We also wanted to get the best weight distribution we could so we relocated a single battery to the rear, installed a 5 gallon fuel cell at the rear, mounted a trans cooler and fan behind the cab, mounted an aluminum universal radiator behind the cab with dual electric fans, and converted to electric water pump. Those things all reduced weight and parasitic drag on the motor. We now have a short belt that goes from the crank to power steering to the altenator (mounted in a dual alt spot), then it hits an idler on the way back to the crank.
Then we focused on the suspension - for the rear we:
- Went to a single stock top leaf spring
- Did an axle over conversion
- Flipped the shackle hangers over and mounted them low on the frame with longer shackles
- Got Cal-Tracs made for an axle over conversion
- Added a Compitetion Engineering anti-roll bar
- Did adjustable shock mounts from Competition Engineering on the axle and made an upper shock mount crossmember
- QA1 double adjustable coil over shocks (without coils right now)
For the front we:
- DJM 6" drop upper and lower control arms
- No front sway bar
- Modified frame to allow more downward travel
- Made custom upper shock mounts
- QA1 DD701 double adjustable coil overs with 450 lb Hyperco 14" springs
We did a full billet build on the transmission. We installed manifolds, up-pipes, Pro-Fab Y-bridge and cold side tube, made a 3" hood stack, his S&B intake, and a custom lift pump setup we designed for it that has 15 PSI of static pressure and 105 PSI at full boost. So we took it out on stock turbo and fuel system to see what it would do and get the suspension dialed in.
We took it out to Rudy's truck Jam to start making some passes on it and went 7.40 @ 96 on the 2nd pass. Didn't get to play with the tuning at all as we had to dial it back to run the 7.70 index class and dialed in a 7.70 in the ET class too.
