Focus RS at the Nov 2017 BAC Rallycross - Kevin Doubleday © If you've read my last post - The Ram's Eye is going Rallycross - you already know that I'm starting rallycross this season for the first time. I started high performance driving 7 years ago in 2011 but have never strayed away from tarmac/asphalt. Living in Canada - which rightfully earns the name 'The Great White North' - means that I had to suffer serious speed withdrawals during the track off-season; that typically lasts from the middle of October to the middle of May. But there is a treatment for people with my condition and it has been available locally for nearly 20 years. I went to my first event this past Sunday and spoke to a few of the seasoned rallycross veterans. I was told that local speed freaks started organizing rallycross events for that very reason around 1999; to get their speed fix during the winter. It took off a few years later around the 2001-2002 winter season and nobody loo...
I'm finishing up a comparison post (link to introduction: Intro: Focus RS vs Golf R vs WRX STI vs Evo X ) and, throughout the post, I realized that I have to go off topic a lot to talk about how each type of differential changes the way the car drives. As a result, I thought I'd write a separate post to go into more detail before I post the comparison to keep it more focused on the cars and avoid veering off topic too much. By saying "Limited Slip Differentials" in the title, I am including torque vectoring diffs because, although current conventional terminology treats them differently, a torque vectoring differential is, in essence, a very sophisticated limited slip diff (LSD) that can be manipulated to actively help the car handle better. And while none of the cars in the comparison use open (without help from the brakes) or non-gear mechanical LSD’s, I’ll briefly discuss them so that the post is more inclusive. I’ll only focus on using power to help the...







