Nissan Titan Forum - View Single Post

Quad T · 03-10-2004, 10:49 AM

Does anybody know?

I checked the Nissan website and did not find it listed in the specifications. The reason I ask is I'm interested in the performance mods Infiniti has made to the 5.6 Endurance engine.

The QX 56 (Armada having survived Infiniti finishing school) is rated at 315 hp., an additional 10, with 390 lb.-ft. an additional 11. The Infiniti website lists the compression ratio at 9.8:1, and it requires premium fuel.

I suspect the performance increase is nothing more than revised mapping of the electronic control unit and maybe a refined exhaust and intake. However, if the compression ratio has been increased Infiniti has done some additional work tot he engine.

Thoughts?

03-10-2004, 10:49 AM	#1 (permalink)
Quad T Registered User iTrader: (0) Join Date: Mar 2004 Location: Upstate, NY Posts: 1,967 Thanks: 0 Thanked 0 Times in 0 Posts	Titan's V8 compression ratio? Does anybody know? I checked the Nissan website and did not find it listed in the specifications. The reason I ask is I'm interested in the performance mods Infiniti has made to the 5.6 Endurance engine. The QX 56 (Armada having survived Infiniti finishing school) is rated at 315 hp., an additional 10, with 390 lb.-ft. an additional 11. The Infiniti website lists the compression ratio at 9.8:1, and it requires premium fuel. I suspect the performance increase is nothing more than revised mapping of the electronic control unit and maybe a refined exhaust and intake. However, if the compression ratio has been increased Infiniti has done some additional work tot he engine. Thoughts? __________________ Quad T TITAN TOWS TRACK TOY The Big Red Beast - AKA - Project Titan Nissan Sport Magazine '05 Titan SE 4x4 KC, Red Alert with Graphite/Titanium Popular Package, Utility Package, Big Tow & 17" Off Road Wheels, and more to come...