Custom ECU / ECM Tuning for Rochester Diesel Performance Mack Injector Upgrades
Have you installed new injectors to upgrade your MACK E7 engine's power, only to find the gains disappointing for the cost and effort? This is a common complaint we hear, but the good news is we have the solution! Increasing the injector nozzle size helps when you're looking to boost power, BUT it doesn't solve the root cause of the MACK's low-power driveability. The main issue lies in the fuel scheduling the factory uses. Like most diesel engines, there are several tables that calculate fuel scheduling—primarily using BOOST PRESSURE, ENGINE RPM, and CALCULATED LOAD. The way MACK sets these up relies on exhaust volume to spool the turbo, whereas most other manufacturers use the thermal content of exhaust gas to spool the turbo sooner. This method gives them more LOW-END POWER, a wider power band, better throttle response, and an all-around better driving experience. This is why MACK trucks seem to have such a narrow power band—but it can be corrected with custom ECU tuning! You'll need to remove the ECU from the side of the engine and ship it to our location for this tuning service. If you use standard next-day air with UPS or FedEx, we receive packages by around 10:30am and can generally get them tuned and shipped back out the SAME DAY!
Combine the Rochester Diesel Nozzles with one of our Billet Wheel 75mm Performance Turbochargers and you can reliably get up to 625hp! - See below for details
Please give us a call at 423-709-7755 or email questions to info@heavydieseltuner.com
With stage 2.5 Injectors adn this 75mm turbo we have seen 504 REAR WHEEL HP!
Stage 1 Mack AI / AMI Upgraded Turbo Assembly
75mm Billet Compressor Wheel Performance Turbocharger
Does your truck have the smaller stock charger that the 385hp and lower engines use and you're looking for an upgrade? Maybe your 427/460's charger is needing replacement? This is the perfect time to upgrade to a new performance billet charger! These Stage 1 turbo's are capable of up to 625hp with supporting mods! Contact tech support to discuss tuning and if an aftermarket larger injector nozzle will reach your HP goals. These stage 1 chargers work great with stock 427/460 injectors and can easily product 550hp without temp problem combined with just our ECM tuning! You will need some different couplers, clamps etc to adapt this charger to the stock air intake and connect it to the original intercooler so please keep in mind additional parts will be required during install. We worked with bully dog manufacturing to come up with a reasonably priced billet wheel turbo upgrade for the mack community, no more $2500 mystery turbos!
This charger WILL NOT BOLT UP TO A FACTORY VGT EQUIPPED EXHAUST MANIFOLD.
Features
- 75mm Compressor Inducer
- 1.32 Turbine A/R
- T6 Twin Flow Turbine Outlet
- Billet Center Cartridge and Turbines
- Straight Compressor Outlet
- Reduced Turbo Lag
- Includes Gaskets
- Non Wastegated Allowing Higher Boost Pressures
- Bolts Up To Factory Manifold
- YOU WILL NEED TO ADAPT THE INTAKE AND CHARGE PIPE
- No Core Charge
- One Year Unlimited Mileage Warranty
