At howell efi we do not make a one size fits all product line. They both use the same basic sensors though the computer used to drive each one is a bit different.
Jaguar Specialties
Tuned port injection conversion. Tuned port injection stand alone efi wiring harness. Gm tuned port injection. In 1985 gm introduced its tuned port injection tpi manifold on the corvette and the camaro line. This harness is a basic tpi conversion harnessno matter what year your unit is it will be a 90 92 with this layout. The standard gm tuned port injection systems we offer are 1990 92 speed density systems. Fasts ez efi multi port fuel injection kits are a complete bolt on kit that allows anyone to install a multi port injection setup on small and big block chevy and small block ford engines that were originally carbureted.
Was formed in 1988 by bill and matt howell to support the growing trend towards the use of electronic fuel injection in the hot rodstreet rod and four wheel drive industries. This harness takes care of the headaches involved with installing tuned port injection on most all sbc engines or swapping a tpi engine into your vehicle and makes for a much easier installation. Its true that tpi tuned port injection is a bit harder to swap on than tbi throttle body injection because it requires an intake manifold capable of holding the individual fuel injectors for each cylinder. Converting from batch fired port fuel injection half of the injectors fire simultaneously to sequential port injection each injector fires individually would require a different more modern gm. Can i get a tuned port injection unit out of salvage. Our harnesses are all made with top of the line copper strand wire.
The tpi system includes a manifold base two sets of runners a plenum and a throttle body. These kits can be used on anything from mild street rods and muscle cars to 1000 horsepower allout race cars. Tbi mounts much like a carburetor and can be added using an adaptor plate so its simpler to mount. Howell engine developments inc. Single point injection systems are more economical and easier to service. Horsepower you should select an injector with a horsepower output that can match the fuel and airflow needs of your engine.
Gm tuned port injection conversion by jim oclair from june 2005 issue of muscle machines a used gm tpi system can be obtained for approximately 750 1100. Yes the only part to wear out is the shaft in the throttle body which can be replaced with a larger aftermarket throttle body or a new. These systems will fit both new and old style heads but the heads must be specified at the time of purchase.
Gallery of Tuned Port Injection Conversion
