Edson's E46: Quarter-Million and Counting
He found his feet in the world of autocross, but a little bit of mockery from his track addict buddies made Edson Burgos ditch cone course carving and dive headfirst into road racing.
Edson remembers the moment fondly. “I got a ride around Sonoma in a friend’s Civic Si. Yeah — that’s when my life started to go downhill.”
The S2000 that had brought him so much pleasure in autocross was a sensational first track toy, but Edson, being a bigger fella, found the Honda to be less than ideal for daily duty. Only one parking space at the time mandated he have dual-purpose machine, so he sold the S2000 and picked up a mint E46 M3 ZCP. The performance out of the box wasn’t bad, but Edson knew he wanted to go all in modifying his street-track car., and this one, as he put it, “was just too pretty to chop up.”
Wisely, he made a bit of money selling that gem and decided that he’d look for an example a little rough ‘round the edges so that when it came time to strip and slice, he could do it with a clean conscience.
One well-worn example popped up on his radar. The odometer had just ticked past the quarter-million mark, but the annoyingly low price of five racks was fair and Edson swooped it up in thirty-six hours.
The previous owner had taken some pretty innovative approaches to quieting the creaks and rattles present in a 250,000-mile M3, including expanding foam. The paint was patinaed harshly, so even at twenty-feet it showed its age. However, the motor sounded healthy, and that was enough motivation to begin replacing every OEM bolt, nut, and bushing on the ol’ girl.
Along with the underbody overhaul, Edson dropped nearly twice the price of the car on every E46 M3 owner’s big gripe: rod bearings, VANOS, and subframe reinforcement. These are a must-fix on most of M3s of this generation, though the later cars aren’t cursed with the same rod bearings as the earlier cars. However, after dealing with these three, the E46 is a workhorse willing and able to take the abuse.
He wanted the weight of the car to take a dive, so he tossed the rear carpet and seats, put an Autopower bolt-in half-cage in their place, and a Sparco Evo XL in the place of the plush factory driver’s seat. There’s no sense in holding onto heft when the sunroof-equipped car is already meant to be a track toy, and since he and his wife had a reliable daily at this point, he could make this car as extreme as necessary. Accepting that approach made it easier to drop another couple thousand on a CSL carbon trunk.
Not that he wanted to go for a full-aero build with big power and composite panels. This build was meant to remain simple and reliable, so only the necessary performance modifications were made—and made in one fell swoop. There aren’t many, but the few he did make are quality. JRZ RS Pros, DO88 radiator and oil cooler, and a Ground Control front swaybar.
Being that the motor is as well-used as it is, Edson thought it wise keep all power modifications to a minimum. To get a reliable 300 wheel from the S54, all it took was Build Journal B-Spec tune and Myers Competition’s header and single-exit exhaust. Say what you will about the last atmospheric M-grade straight-six, but with a few mods for power and reliability, it is a glutton for punishment, even at a quarter-million miles.
With these goodies, the M3 was sorted, dependable, dailiable, and fun. That is, until he tried braking past the three-marker at the Andretti Hairpin. Laguna’s known to be hard on brakes, and Edson learned this the hard way when his stock brakes failed. He managed to keep it out of the wall, but this 120-mph scare drove him to buy some big brakes the second he got home that night.
Up front, he did not skimp. AP 5000Rs stuffed with Winmax W5s are perhaps some the best big-brake combinations for the car. At the rear, he opted for a set of the old school Porsche 996 Brembo “Big Reds” and fitted some of Hawk’s DTC-30 pads for a stable rear under deceleration.
Since Edson had his hands full adapting to the torquier motor, he appreciated the M3’s composed, predictable behavior under braking. “i had to be a lot more careful with the power; it was too easy to overdrive. Everything else was easier. Six years in the S2000 taught me a lot. I wouldn’t be as comfortable in the E46 if it weren’t for my previous car.”
He’s put in some impressive times in the meantime. He can lap Sonoma in the 1:49s and Laguna Seca in the 1:40s. For a 3,300-pound car (with driver and fuel) with stock bushings and no aero, that’s pretty dang quick.
“It took me a year to adjust to the platform, but I’m super comfy now. Without all that time in the S2000, I wouldn’t have adapted as quickly, but I’m here. That car was nervous—not that this one isn’t, but I don’t think I’d be able to catch the faster slides if I didn’t spend so much time spinning out in an S2000.”