1995 chevrolet corvette reprogrammed ecm

1995 chevrolet corvette reprogrammed ecm install#

This, of course, is only true for the mass airflow (MAF) sensor motors of '85-'89 Corvettes those with the later speed-density systems require reprogrammed chips to handle any changes. According to Steve, while the original TPI was programmed to produce loads of low-down torque and power, it can accommodate some pretty wild modifications while maintaining driveability. This thing would burn rubber in every gear, and actually made my tired Corvette seem wimpy. The concept for this project originated with a former Chevrolet regional service manager, Steve Stuart, who, while installing a Richmond 6 gearbox in my Corvette, gave me a ride in his 383 V-8-powered S-10 pickup, complete with a stock TPI system. This meant we had to find the limits of the TPI system without exceeding them. The challenge was to assemble the right 'kit' that would not upset the C4's Electronic Control Module (ECM computer), yet provide a major power increase. Still a chunk of money, but not the 8-10 grand that people were spending 15 years ago. Our goal was to find the right combination of aftermarket components-and there are many of them-that would work together to harness an extra 100 horses, boost torque, and raise the usable rpm range another 500-1,000 rpm all without relying on a custom-programmed chip or any exotic engine treatments, and for around $4,500. In the past, wealthy owners resorted to all-out racing engines fueled by exotic intakes and custom-programmed chips (EPROMS). That's why our early C4s now have a hard time keeping up with modern machinery. But as anyone knows, above 4,500 rpm the show's over. Measuring a lengthy 11.25 inches, the runners of the new Tuned Port Injection system offered incredible midrange torque that kept the Corvette competitive (even faster in some cases) with Europe's best. When Chevy graduated to a true port-injected system, it kept the best part of the Cross-Fire system: the long intake runners. The extremely long intake runners were the key. The Cross-Fire worked because it provided gobs of midrange torque that could launch the car to respectable (for the era) 0-60 and quarter-mile times. And it provided greater fuel economy and reduced emissions to boot. The Cross-Fire was an excellent way to utilize a new and inexpensive technology-throttle-body injection-while giving the '82 Corvette a decent power increase over the anemic carbureted '81.

1995 chevrolet corvette reprogrammed ecm install#

It was one thing for Ferrari or Porsche to install the expensive Bosch Jetronic FI systems on their cars, and quite another for the General to find a way to give EFI to the masses. This system not only represented Corvette's return to FI, but also its foray into electronic fuel injection. When the '84 C4 was released as the 'new Corvette,' it came to us with the Cross-Fire injection system first introduced in the last shark, the '82. The key to TPI performance is understanding the limitations inherent in the system, and working with them to produce the desired effect.