Vette Shows: The Sights of C4 Corvettes at the 2011 30th Corvettes at Carlisle Show

Dateline: 9.1.11
2011 Corvettes at Carlisle Week continues with coverage of 1984 to 1996 C5 Corvettes!

This is Michael Beal's custom 1991 ZR-1 Roadster. The LT-5 engine in the car was built by Corvete racing legend Kim Baker.

From 1984 to 1996 the C4 Corvettes arguably made more progress in terms of performance than any other generation Corvette. The ‘84 model arrived with the 205-horsepower “Cross-Fire Injection” engine and was quickly replaced with a real “fuelie,” the 230-horsepower L98 Bosch Tuned Port Injection engine. By ‘90 the 375-horsepower LT-5 engine arrived in the new ZR-1 and was bumped up to 405-horsepower by ‘93. The L98 received incremental improvements and hit 250-horsepower by ‘91 and was replaced with the 300-horsepower LT1 in ‘92. So, we saw some impressive power gains during the rein of the C4s.

And there were several interesting special edition C4s as well. There was the ‘86 Pace Car Special, the ‘88 35th Anniversary Edition, the ‘90 to ‘95 ZR-1 option (the single most expensive optional package in Corvette history!), the ‘93 40th Anniversary Edition, the ‘95 Pace Car, the ‘96 Collector Edition, and the ‘96 Grand Sport. That’s tremendous progress and consistent special editions that kept the C4s fresh and interesting.

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Corvettes so heavily dominated the SCCA Showroom Stock racing series they were kicked out! So, the Corvette Challenge “Corvettes only” race series was created. Morrison Motorsports blasted a 50-year speed record with a mildly-modified ZR-1 and Callaway build their 898-horsepower, 254.76-MPH Sledgehammer. Tuners such as Callaway, Greenwood, and Guldstrand offered Continue reading “Vette Shows: The Sights of C4 Corvettes at the 2011 30th Corvettes at Carlisle Show”

Michael Beal’s 1991 ZR-1 Roadster!

Dateline: 7.19.11
Chevrolet didn’t make a C4 ZR-1 Roadster, but Metalcrafters of California got the job done and today, Michael Beal of Connecticut is still enjoying this unique high-performance Corvette!

For most Corvette fans, there was “that day” when a Vette stole your heart. For Michael Beal, it was the jewel-like LT-5 engine that powered the C4 ZR-1 Corvette. The beautiful LT5 engine may well be one of the most underdeveloped engines in Corvette history. While the numbers don’t look impressive by today’s standards, when the first 375-horsepower ‘90 ZR-1 was finally unleashed, heads spun faster that the rear tires of the new beast. By ‘93, Corvette engineers tweaked here and there and bumped the LT-5’s power output to 405-horsepower. It is worth reminding readers that in March 1990, a race-prepared, Morrison Motorsports ZR-1 shattered records at the 7.71-mile Bridgestone Tire test track in Texas with an AVERAGE 24-hour speed of 175.885-MPH!!!

And least you think this was a stripped down, lightweight ZR-1 – no, no. FIA rules mandated that the car carry spare parts incase of a breakdown. Consequently, the ZR-1 was carrying an additional 300-pounds of gear! And, to add a little “sauce for the goose” for the story, the track was just three lanes wide and had no guard rails! One of the team drivers was the famous Kim Baker. You’ll get to learn a little of what Kim is up to these days in the below story. There’s also some insight as to how much red meat Chevy engineers left inside the LT-5.

Too bad the ZL-1/LT-5 didn’t arrive two or three years sooner. Too bad Chevrolet didn’t make a roadster ZR-1. Apparently, ZR-1 fans asked the same question, and a few did something about it! Below is Michael Beal’s delightful story of how he came to own one of the few ZR-1 Roadsters, and his meeting with Corvette legend, Kim Baker. Here’s Michael. Continue reading “Michael Beal’s 1991 ZR-1 Roadster!”