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due to the torque band mainly. On a racetrack I can say that while the VG can dish out power just as well, the torque can actually hamper you when trying to push the car to the ragged edge. Granted this can be tuned out in some applications. People talk about which is better for laying down 800rwhp+ on the street, kind of a moronic question if you ask me, neither are going to be "safe" to go WOT romping around all over the place on public roads.
The RB on the other hand while lacking the low end grunt that we have come to love around town, can be pushed to the edge in a much more controllable manor around a race track. You can utilize the powerband more fully in that environment. Some people would argue this, by all means, the VG when properly supported, tuned, can be a badass motor around the track as well. Furthermore, let's not forget most of the track cars running and RB will be more suited anyway given the GT-R's 4WD, which was designed around stability in the first place.
The RB nuthugging comes about from just this. In those comparison numbers given by Pentroof above, people see the end product with equal mods of the VG30DETT making 746 rwhp @ 6550 rpm, and 865 ft lbs of torque @ 4550 rpm, while the RB26DETT made 759 rwhp @ 7820 rpm, and 543 lbs of torque @ 7000 rpm. But forget to realize that the RB is making that power with 0.4L Less displacement @ 126.5RWHP/90.5RWTQ Per Cylinder. If you figure in those "missing" cc's you would end up around 860ish RWHP w/ 615RWTQ - 114 RWHP more/24RWTQ less than the VG per cylinder. So, the RB really is making a lot more HP given it's smaller size and thus the RB's appeal as a "freak HP" design. I realize this is an "IF" and mathematically flawed scenario as it would not be so linear an equation necessarily but more or less I'm trying to provide a truly "fair" perspective.
The VG on the other hand with it's 124.3RWHP/144.16RWTQ per cylinder is a torque monster, which is something us torque-born ground pounding Americans, (and proud of it), will always love.In street trim,the VG is a superior around town motor. My opinion being VG - Street, RB - Track, Nissan didn't make a mistake on the install, the VG is the driver's engine to make the Z's experience all the more pleasant in cruising, the RB is a racing motor by design with racing in the blueprints from the beginning for the Skyline GT-R. Both engines are true testaments of Nissan's engineering remarkable capabilities and endless desire to produce some of the best products in the world. The VQ has some mighty big shoes to fill, but seems to be doing an alright job so far... Cheers.
Sorry for the long post. Just my $0.02~
1992 Nissan Skyline GT-R Gunmetal Gray
- Long Live the Z and Godzirra! -
"Love cars. Love people. Love life." - Mr. K. |
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