Read SAE Paper SAE920677. Here is a link to it. SAE's site costs. http://www.mazdamaniac.com/tech/sae_20920677.htm Check out http://thegarage.jalopnik.com/here-are-five-reasons-why-you-need-to-buy-a-mazda-mx-6-1688214343 Now, from the net "A USA oil company researched engine longevity using their own oil : "After 300,950 miles the Mazda MX6-V6 passed an IM 240 Exhaust Emission Test in Aurora, Colorado, with results well within new car limits. At more than 310,000 miles, the test engine was disassembled for inspection and measurement. No wear was evident on valve stems and guides, main and rod bearings, crankshaft main and rod journals, or cylinder walls. The cylinder hone marks from original factory machining were all clearly evident. While piston skirts showed no wear, piston rings showed an average of only 0.0015" of face wear." The V6 rivals the Lexus V8 for longevity, which is unsurprising considering the original application was a Xedos6-2.0V6, Xedos9-2.25/2.5V6 & Sentia rotary luxury lines. Many V6s & I4s have exceeded 350,000 miles, the only failures on one was a Mitsubishi alternator at over 200,000 miles and the pre-Jan-1995 rear calipers on another." The later Boxster could not hope to achieve that. With those stupid liners, it cost $$$$ to make power. Oh and yes, Google yourself, in 1992, Mazda did win an award from a prestigious German automotive group for the KL. I choose cars within a certain all-around feel, bikes as well. Now, take that FWD vehicle against that Boxster in the rain. Heck, I was the only person to drive to school in the snow and ice. I was turned around. It was so fun. We Southerners just conk out and have a holiday. Drove 12 Hours to find one, but it wasn't up to spec some months ago. I still have a fresh KLZE. Take a look at the VRIS section, Mohawk. Yamaha does something similar in their R1, something you tried to replicate with those Yoshimura velocity stacks. Ford SHO and MX-6 heads were designed by Yamaha. Go figure. The R1 rips from reading, MotoGP standings... I love the VFR as the all arounder it is. Time to investigate some more rides! Wow, if you all would just read my very juvenile paper, it would have stopped a lot of the tinkering on the VFR. But hey, yall have done some excellent work. I know where to start if I should. Always start with Volumetric efficiency and a tolerance study. I did. Cool guy in town let me have an engine to tear down. The local High School let me use their vocational mechanics shop. It wasn't just some paper. But again, I'd better increase my dosage. Ksoholm almost looks like Lysholm. Ooops I'm not going there! Oh yes, my girlfriend and I picked out a 240SX for her. Thought you guys loved twisties. These are twisties cars! On a short track, your super duper sorta Boxster won't have an advantage; nor will a Vette! All Hail the KL! Sorry folks, Lysholm, BadWillie, just do some reading. You all clearly have the time. Enlighten yourselves. You aren't too old to learn new tricks or learn from a youngster. As the saying goes, you can learn a lot from a dummy! I sure have! Hey LilWillie, been looking for some of your posts on VFRDiscussion.com, as you've been mentioned here and there; for some reason, I can't find one. You must have an awful good bunch of good stuff about paint and performance that I just can not find. Dang!