The new Infiniti Indy 35A engine is the first subject of this new feature. In its quest to become a heavier hitter in the Indy Racing Northern Light Series, Infiniti knew it needed to think lighter. So when the Infiniti design team set out to develop the new 35A engine for its Indy Racing customers, trimming weight was one of the primary goals along with enhanced reliability and greater horsepower. The team rethought, redesigned and reworked nearly all of the parts in the existing 3.5-liter Infiniti Indy V8. There's a new cylinder block.
New cam covers.
New cylinder heads. Nearly everything is new. And the end result was that the new 35A tilts the scales right at the minimum engine weight of 325 pounds as specified by the Indy Racing League rules, said Charlie Bamber, chief engineer, Infiniti Motorsports Design Team. It's quite a big diet. The guys on the design team looked to every component, not to just one area.