Post by
AZhitman »
https://forums.nicoclub.com/azhitman-u113.html
Tue Aug 14, 2007 4:39 pm
According to sources from within Nissan North America, the long-awaited Nissan GT-R will NOT be powered by an engine from the ubiquitous VQ line of motors.
Rumors have swirled for months about the possibility of more displacement, less displacement, forced induction, natural-aspiration, not from the VQ family at all.
Now we know:
The GTR will be powered by Nissan's yet-to-be-introduced VR-series engine, displacing 3.8 liters, giving us an early indication of an engine code of VR38.
Adding to the nomenclature, we know that titanium intake valves and magnesium alloy exhaust valves will be used, as are present on the V36 Skyline Coupe. An updated version of Variable Valve Event and Lift (VVEL) will be present as well. This gives us an engine code of VR38VE.
BUT WAIT!
Our sources ALSO mention not one, but TWO small variable geometry turbos running 1.47 bar, or 21 psi of boost.
This leaves us with a VR38VETT or VR38VHRTT, depending on whether the "base" VR38 is considered a "hi-rev" engine or not. We're pretty certain it'll be the low-rev, and naturally-aspirated versions will be of the "hi-rev" variety.
Either way, it kinda rolls off the tongue, eh?
Word has it that the new VR series engine is lighter than the VQ and VK engines of similar displacement. Redline begins at 7,600rpm, with a 7,800rpm rev limit.
Peak power is estimated at 473 horsepower @ 6,800 rpm; 90% of the VR38VETT nearly 500 horses will be available between 6,800 and 7,500 rpm.
Peak torque comes in at a stump-pulling 428 lb-ft @ 1,700-5,600rpm. That's nearly instantaneous torque OFF IDLE with a locomotive-like powerband throughout the rev range.
Of course, we already knew that the GTR will utilize Nissan's new "Premium Midship" platform as its basis. The PM platform boasts a perfect 50/50 weight distribution.
Coupled with Nissan's experience in developing advanced 4WD systems, it sounds like we'll finally be getting a supercar from Nissan on US shores. It's been a long time coming.