Top Tech Questions: Hybrid Injectors?, How To Pass A Smog Test?, 7.3L Newbie Help Photo Gallery
You’ve got questions? We’ve got answers!
Mike McGlothlin –
Jul 3, 2014
Photo 1/4 | Top Tech Questions | top tech questions
Photo 2/4 | 2012 Ram 2500 6 7L Cummins Engine | While the factory variable-geometry Holset found on 6.7L Cummins mills provides incredible spool up in a compound-turbo arrangement, its life is limited in such systems due to excessive drive pressure.
Photo 3/4 | 1987 Jeep Wagoneer Engine Swap | We have heard of gas-to-diesel swaps passing inspection and the owner later repowering the vehicle with a different diesel engine (say, passing inspection with a 6.5L GM under the hood, then swapping in a 5.9L or 4BT Cummins—and “forgetting” to tell Big Brother about it). But, those may just be stories… We wouldn’t advise going that route if you want to drive a legitimate swap vehicle on public roads in California.
Photo 4/4 | Hybrid Injectors For The 7 3L Power Stroke | Hybrid injectors for the 7.3L Power Stroke got their start in the form of fitting an A-code injector with a single-shot, BD-code plunger and barrel from an I530E International engine. This increases the bore of the injector, and the retention of the A-code’s stock 16mm intensifier piston allows the injector to use less oil to actuate than a BD-code injector would, hence only one high-pressure oil pump is needed to make 450 to 700 hp.