Non-OE turbos produce up to 40 per cent less torque, independent tests show

Copies also found to produce as much as 28 per cent more NOx and three per cent more CO2 than OE turbochargers

Non-OE turbos produce up to 40 per cent less torque, independent tests show
Customer expectations for reliability, performance, driveability, fuel consumption and noise drive constant developments in the range of Garrett CV turbos.

Turbos built to the original specifications of the factory-installed part they replace have significantly better performance, CO2 and NOX emissions than non-original copies, an independent study has found.

Commissioned by Honeywell Transportation Systems and conducted by Millbrook Group, the research used the average of two approved replacement turbos built to OE specifications from Honeywell’s Garrett brand of replacement turbos as well as a leading competitor to compare against the highest-selling third-party units in Europe, which were reverse-engineered or remanufactured without qualified turbo factory support.

Findings

Low-end torque with an engine using a copy turbocharger fell by between 15 per cent and 40 per cent compared to OE fit turbochargers.

NOx emissions from non-OE copy turbos were between eight per cent and 28 per cent higher.

CO2 emissions from some non-OE copy turbochargers were nearly three per cent greater, measuring between 2.0g/km and 4.5g/km higher than OE turbochargers, or an emissions amount approximately equivalent to using an additional litre of fuel for every tank driven.

Eric Fraysse, aftermarket vice president and general manager at Honeywell Transportation Systems, said: “The results of this independent study are a clear indication of why Honeywell’s Garrett genuine replacement turbochargers from Honeywell are the best value proposition for distributors, installers and the end customer.

“While this test was done using the new European driving cycle, we expect the performance and emissions gap would have been even larger had the more relevant worldwide light duty test cycle been used.”

To find out more about OE turbos go to the BTN Turbo website by clicking ‘more details’ below.

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