View Single Post
Old 26-03-2025, 12:19 PM   #1
whynot
FF.Com.Au Hardcore
 
whynot's Avatar
 
Join Date: Nov 2005
Posts: 1,153
Default Cummins first petrol engine, a "fuel agnostic" design

Interesting development from Cummins.

https://www.cummins.com/engines/octane

Quote:
B6.7 Octane
The Cummins B6.7 Octane engine is specifically designed and developed for the medium-duty market while achieving 2027 EPA and CARB compliance. Expanding the legacy of the Cummins B-series platform, the B6.7 Octane is equipped with the power, durability and performance of diesel with the simplicity of gasoline.


Spec sheet

https://mart.cummins.com/imagelibrar..._0325.pdf.ashx

This is an extract of what Car & Driver had to say

Quote:
Intended for medium-duty trucks—your buses, delivery vans, and utility vehicles—the B6.7 Octane will be available in four flavors of output, from 200 horsepower and 600 pound-feet of torque to 300 horses and 660 pound-feet. That mirrors the choices for the diesel version of the B6.7, and the two engines' torque curves look very similar, with the diesel hitting its peak at 1400 rpm and the gas engine making its 660 pound-feet at 1800 rpm. While the B6.7 diesels top out at 2600 rpm, the preliminary numbers have the Octane screaming all the way to 3200 rpm.

The Octane belongs to Cummins' HELM series, engines that are "fuel agnostic," and is a clean-sheet design with a new block. The Octane will lead to future diesel and hydrogen derivatives that share its architecture (double overhead cam with a rear geartrain and front auxiliary drive options, among other things). It's also lighter than the current B6.7 diesel. Going gas means you can ditch diesel exhaust fluid (DEF) tanks and emissions equipment while enjoying diesel-like maintenance intervals—Cummins figures 15,000 miles between oil changes.

If you're dreaming of swapping this torque monster into your favorite "skoolie" and heading for the nearest NASCAR infield, you'll need to wait a while. Production doesn't begin until next year and will initially be limited to Cummins' OEM chassis partners, such as Kenworth. But eventually, we have to imagine that the Octane will be available to anyone who values mega torque and high-mileage longevity over outright horsepower.
whynot is offline   Reply With Quote