Rams Eye The Track Guy

SADOKIST's (eSports Host) E46 BMW M3 GT3 Race Car - Kevin Doubleday © Over the years, I've found that limited slip diffs (LSD's) are some of the least appreciated performance parts you could get (or upgrade) for a car. LSD's make a big difference, though, because they can vastly improve how early you can get back on the power and, therefore, how good your corner exit is. That last bit is very important if you're driving on track and want to get a good lap. You don't have to just take my word for it, though. F1 royalty Sir Jackie Stewart puts an emphasis on the importance of corner exit. When Captain Slow was sent to him to cut 20 seconds off his lap time (Top Gear Season 8 - Episode 5), Sir Jackie told him: "the exit of the corner is FAR more important than the entry of the corner, with regards to smoothness." Sir Jackie Stewart coaching James May in a TVR Tuscan - Top Gear Season 8 Episode 5 You really need to nail the exit. And to get a...

C7 Corvette Grand Sport... doing a burnout with a proper diff - Graham MacNeil  © I wrote a tech post comparing various open and limited slip diffs for a comparison and I found that a lot of people were asking questions. To simplify and make it easier to read, I decide to break them up for a future tech article about handling. Make sure to stay tuned for two posts on limited slip diffs this week!. WHY DO YOU EVEN NEED A DIFFERENTIAL? A differential's job is to allow two wheels on the same axle (or two axles in a 4WD drivetrain) to spin at different speeds so a car could smoothly go around a corner. Why do the wheels need to spin at different speeds? Each wheel on a car has to travel a different path to reach the end of the turn. You can see that for yourself every time you drive on snow covered roads or muddy trails. Four different tracks by four wheels/tires on one car going around a turn - Rams Eye The Track Guy  © If you take a turn, you'll see that each whe...

Ford has been teasing the new GT500 for months now and many details are already known about it like specs and even top speed and downforce figures . But the one thing that remained a mystery is the exact horsepower figure. We knew it was going to be over 700 hp, but exactly how much wasn't known. But we FINALLY have an answer now in the form of a video. And what more appropriate way to announce a mad 700+ horsepower figure than a burnout video? This figure puts it WELL above its primary rivals, namely the Challenger Hellcat with 707 hp and the Camaro ZL1 with 650 hp, but it is still shy of the new Hellcat Redeye with 797 hp, but it should be much lighter, to the tune of 200-300 lb. And while the Challenger Hellcat is a massively capable grand tourer for its size and weight, the GT500 should be in a different league on track, especially with the Track Pack. Getting that much horsepower makes it the most powerful production Ford ever and the most power and torque dense V...

The current (and outgoing) BMW M3 upset quite a few purists when it switched to turbocharging to boost power from a long line of naturally aspirated engines. It looks like the upcoming G80 M3 based on the new G20 3-series is looking to buck the tradition again by being the first ever M3 to offer AWD/4WD. That's right, it looks like the next M3 will send power to all four wheels according to a report by Auto Express. Of course, it won't be the first ever M-car to offer AWD. That honour goes to the current M5 which was the first M sedan/saloon car, so perhaps that should have been a sign of things to come. It makes a lot of sense, given the competition. Fast Audi have been AWD for several generations and recently, AMG announced that the future of AMG is four-wheel drive. Tough Competition Audi is nearly synonymous with AWD and with AMG now switching to AWD, a RWD M3 would (unfortunately) be quite handicapped in terms of traction and objective performance. Competition ...

I'm sure there are some out there who would think that messing with the iconic 911 shape is blasphemy. But for the rest of us, this 911 may just be the prettiest 911 ever made. The reason you probably have never heard of it is because only one was ever made and it was built over 50 years ago. Back in the early 911 days (i.e. 1960's-1970's), Porsche didn't make a 911 Cabriolet. The engineers in Stuttgart didn't think they could design a convertible version (or perhaps feasibly build one) that would meet the American National Highway Traffic Safety Administration (NHTSA) rollover safety regulations, which is part of the reason the 911 Targa exists. Since the American market was quite important to Porsche as far as sales and profitability of the 911, a convertible wasn't built back then. It wasn't until 1981 that Porsche showed the world a concept 911 Cabriolet at the Frankfurt Motor Show and a production version didn't come out until late 1982 as...

Whenever I hear of an outlandish 911 build, I always wonder what hardcore 911 would think. In my experience, they tend to love tradition and preserving the 911 legacy. This car breaks two of the holy trinity of classic 911's; rear engined, flat-six, and air-cooled. It is still rear engined but it uses a V6, water-cooled engine. But I can't imagine a single 911 fan being upset about this. You see, this isn't just any water-cooled V6 engine. It is a Formula 1 twin-turbocharged 1.5 litre V6 out of a McLaren MP4/3 F1 car. Further preserving the Porsche-ness of this build, the engine was built by a partnership formed between Porsche and TAG to provide engines for McLaren F1 team. Porsche was responsible for the technical burden of design and engineering and TAG financed the effort and stuck its name on the engine as "TAG turbo" since McLaren didn't want Porsche's name on their F1 car. Lanzante first revealed the car in October last year shortly after the...