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T3 Speed Shop, pushing the limits isn’t a goal — it’s the standard. One of our proudest accomplishments is a triple-turbo Cummins build that laid down 2600 horsepower and ran mid-5s in the 1/8 mile, 308’ sled pulling machine. This isn’t your average street truck — it’s a purpose-built machine, tuned to dominate dynos, drag strips, and anything in between.
Here’s a breakdown of what went into this absolute unit.
We wanted a truck that could:
• Compete at the highest levels of dyno, drag racing, and sled pulling
• Showcase our in-house fabrication capabilities
• Handle absurd horsepower reliably
This build wasn’t just about making a big number. It had to stay together, deliver repeatable performance, and turn heads doing it.
At the heart is a 6.4L Industrial Injection Shredder Series Cummins Long Block
6.7L Cummins Block w/ 4.130 Bore Ductile Iron Sleeves Installed
Bore Hone Torque Plated
Fully Balanced/Polished Rotating Assembly
Diamond Forged 4.130 Bore Pistons (Late 5.9 Large Bowl)
14mm Silver Back Gorilla Girdle installed w/ ARP Main Studs
Wagler HD Forged Rods
Billet 220/240 Hamilton Camshaft
Billet Oversized Tappets
Stage 3 Cylinder Head w/ 36mm Oversized Valves
120lb Valve Springs
Radius Cut Fire ring Grooves w/ Fire ring Head Gasket
Stainless Steel Gas Nitrated Valves
Diamond Honed Steel Guides
Custom High Temp Valves Seats
Intake Plenum Machined Off
5 Axis CNC Ported & Hand Blended Intake & Exhaust Ports
Drilled & Tapped Coolant Freeze Plugs In Cylinder Head
Billet Valve Bridges
Custom DLC Coated Trunnions
ARP 625 High Strength Head Studs
Stage 2 Billet Pushrods
Billet Shredder Series Valve Cover
Coated HX Series Main & Rod Bearings
Billet Freeze Plugs
Fluid Damper
We paired this with a heavily worked over crank, balanced to survive north of 2K horsepower. The block was Concrete filled Block w/ 1” Deck Plate, 1” Longer Wagler HD Forged Rods to handle serious boost.
Triple Turbo Setup
Air delivery comes via a triple-turbo compound system:
•GT55 high-pressure
• S488 mid
• S488 low-pressure/atmosphere
This layout provides instant spool with massive top-end charge, feeding over 120 PSI of boost at peak.
Fueling the Beast
The fueling system is just as serious:
• Dual 12mm industrial injection pumps
• Massive 700% over injectors
• Custom fuel rails and return system
Paired with water-meth and custom tuning, it’s a balance of flow, control, and firepower.
Randy’s 48RE Transmission Stage 4 1,000HP+ w/ Sonnax Oversized Input Shaft
Chassis & Fabrication
Everything you see on this truck — from the turbo piping to the roll cage — was fabricated in-house at T3 Speed Shop:
• TIG-welded stainless hot and cold sides
• Custom 4-link rear suspension
• Full roll cage, certified
• Race-weight reduction with just enough safety
If it bolted on, we probably cut it off and built it better.
Dyno & Track Numbers
• Peak HP: 2664 hp
• Torque: 3244
• 1/8 Mile: 5.58 seconds
• 308’ Sled pull
• Boost: 120+ PSI
• EGTs: Managed water-meth and smart timing
All of this on a chassis that weighs over 5,500 lbs.
Lessons Learned
At this level, every detail matters. Here are a few takeaways:
• Tuning is everything — small timing or pressure changes can make or break the run.
• Heat kills — aggressive cooling strategies are essential.
• Fabrication quality matters — leaks, cracks, or poor welds will end your day early.
Want Power Like This?
We don’t just build monster trucks for show. Whether you want a reliable 600HP tow rig, a clean street sleeper, or your own 2,000+ HP race setup, T3 Speed Shop has the tools, talent, and track record to make it happen.
Located in Salt Lake City, Utah
Call us 801-669-2890 or visit www.t3speedshop.com to schedule a consult.
