Post by
dmuramoto »
https://forums.nicoclub.com/dmuramoto-u129239.html
Fri Dec 25, 2009 8:11 am
The method SCCA uses to classify cars is not a very transparent one. The CRB has a super secret computer program that takes into account power/weight ratios, tire size, frontal area and other factors and spits out a bunch of results. Problem is, the class parameters change when a car undergoes a lot of R&D over the course of a season. Case in point, the Solstice GXP was race engineered by GM Performance a few seasons ago. They were able to start with bodies-in-white and build from there. SCCA rules allow reprogramming of the ECM and factory engineers were assigned to increase engine output.
Significantly enhanced boost levels meant that the top running T2 Pontiacs were running practically as fast as the T1 Z06s and Vipers (would have qualified in the top six of the 2007 T1 field). That's also a tribute to the good driving and car prep by Phoenix Engineering to build these factory spec racecars. Solstices have won the last four Runoffs and there's been precious little to slow them down.
At least there's some parity at the front end of the grid: Evo IV also benefits from ECM development and turbo boost, BMW M3 and Z4 M Coupe have lots of $$$ behind their development as well and now the new Mustang and Camaro will get V-8s to encourage a Ford/Chevy rivalry.
None of this is meant to say that hard work and knowledge wouldn't help any of the Nissans as well. But with the pullout of Nissan Motorsports a few years ago, there is little support to continue developing and campaigning the Z (either Z33 or 34). And while I'll continue providing feedback to the CRB on their classifications, there's really no sense in b****in' about it. My Nissan Sport 350Z remains competitive in T2 on many tracks outside of Road America. I'll continue to develop the VQ35HR motor and will campaign races in both SCCA and NASA for 2010.