Table of Contents
Will 305 TPI work on 350?
If you want to use 19 lb injectors on a 350, or 22 lb injectors on a 305, you can, but you MUST have the injector size in the PROM changed. Otherwise, you will run into fueling problems.
How much horsepower can you get out of a 305?
So a 305 up against a 350 (even at the same horsepower) will always lose to the larger engine because the 350 will make more torque. I completely agree that a 305 can be built to make 450 hp.
What does tuned port injection mean?
Chevrolet’s version of multi-port fuel injection called Tuned Port Injection was introduced to the public in 1985 on the Corvette and Camaro. The system was initially designed to help the smallish 305 cid engine with a boost in low and mid range torque, and quickly adapted to the 350 cid engine found in the Corvette.
What is the best year for the IROC-Z?
6 1985 Camaro IROC-Z: Of Championship Dreams The 5.0-liter V8 made 210 horses and 285 ft-lb torque which was not a huge number but for the time of the oil crisis and emission control, it was respectable. The 146 mph top speed and the 7-second 0-60 mph run also redeemed the Camaro name.
What motor is in the IROC-Z?
Power Packages. The 1990 IROC-Z was powered by either a 5.0-liter V-8 or a 5.7-liter V-8. Both engine were variations on Chevy’s long-running small-block design. The base 5.0-liter mill put out 210 horsepower at 4,400 rpm and 285 foot-pounds of torque at 3,200 rpm.
How do I get more power out of my 305 TBI?
Bolt-on Upgrades
- Replace the exhaust manifold. The stock exhaust manifold of the 305 engine restricts air flow from the engine increasing back pressure.
- Replace the intake manifold and carburetor.
- Add cold air induction.
- Replace the computer chip.
What’s the difference between a 305 and 350 TPI engine?
The difference between the engines was the prom. In other words, the 86-89 350 TPI engines used the 1227165 ECM, and so did the 86-89 305 TPI engines. The 90-92 350 TPI F-Body engines (Camaro and Firebird) used the 1227730 ECM, and so did the 90-92 305 TPI engines.
How big are the injectors on a 305 TPI Corvette?
All 305 TPI engines used 19 lb injectors, and all 350 TPI engines used 22 lb injectors. The Corvettes did not have larger injectors, as people often believe.
What kind of ECM does a 305 TPI Corvette use?
The Corvette used the 1227727 ECM on the 90-91 350 TPI engines. Although the Corvette was never available with a 305, the 1227727 ECM can be used on a 305 if desired.
Which is the best rpm for a TPI?
The TPI is great for low rpm torque so the big heads, and big bore cylinders aren’t going to breathe anyway above 4500 rpm or so. I can really see the rpm climb slow down at about 4800 rpm.