Despite hearing and reading the rumours over and over again about the all-new, 5.5 litre, naturally aspirated high revving V8 Chevrolet was putting in the upcoming C8 Z06, I am still completely awe struck by what Chevrolet has done and sticking to a naturally aspirated V8 against all odds. Please take a moment to welcome the most powerful naturally aspirated production V8 the world has ever seen (at least mainstream production). The title previously belonged to the now dead SLS AMG, which had AMG's legendary 6.2 litre V8 making 622 hp and 468 lb-ft of torque. The New Z06 eclipses the horsepower figure with a whopping 670 hp at a scarcely believable 8,400 rpm (with an 8,600 rpm redline). Despite the high revving nature AND the smaller displacement (5.5 litre vs 6.2 litre for the Merc), torque hardly suffers with a healthy 460 lb-ft of torque, only 8 lower the the bigger displacement AMG engine. At a time when AMG, BMW, and even Ferrari have abandoned naturally aspirated V8s, and af...
2012 Boss 302 on square 305/30/19 RE-71R's at AMP - Graham MacNeil © For better or for worse, I have heard and read so much about RE-71R's. Everyone swears by the grip but complains about the wear. Generally speaking, the pros are: 1. They grip as well or better than most R comps. 2. They don't wear as quickly as R comps if driven occasionally on the street. 3. They work better in the rain than R comps. The cons were limited to overheating quickly when used on track (being an autocross tire) and wearing too fast on heavy cars like mine. In the popular 200 TW category, they are faster than the popular Hankook RS-4's and BFGoodrich Rival S's according to published Tire Rack Tests. According to plenty of reviews, they are also faster than well established R comps like R888R's (which don't seem to work too well on heavy cars anyway) and the venerable NT01's. But I was still hesitant for a while until I talked to a tire tech support gentleman...







