Lateral-g.net vs Pro-Touring.com

[headcase]

Just wanted to know where do the more serious P-T guys hang out with not just opinions, but, perhaps, race car builders etc, people with a wealth of knowledge and understanding of components as to what works and cant work. Not slamming either site nor wondered for that sort of purpose or to start anything in regards to anything. Was more or less for me, where do I find guys that win races, build race cars, know how to design chassis etc, which forum is more of that to be found on, or is that a void question as those people would be too busy to be on either forum