Quote:
Originally Posted by Ed OBrien
Evan
With EFI and 8 injectors is it not possible to adjust each cly. to the proper A/F mix ? With a stock intake and a carb how close can you get ? How many small blocks with a carb run in the 9 second range ? I'm not saying
the FI cars are bad but they have not been factored as they should and think of all the combos in FI cars that Bob Shaw has not got to get LOL sorry Bob I just had to toss that one in . Have a nice day
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Ed, there is more than adjusting each injector for each cylinder, and no, it is not an advantage since the mixture is affected by a lot of other variables such as airflow and reversion during the RPM transition. The A/F does not stay the same throughout the RPM band. There is more than F.I. that is helping the new cars go fast. Let's take a look at the following:
1. Better optimized cylinder heads and intakes.
2. Changed firing orders.
3. Lighter crankshafts, rods and pistons.
4. Thinner ring packages.
5. Hydraulic roller lifters.
6. Better oiling systems.
7. Better ignition systems.
I have seen articles in which they have removed the F.I. on LS1 engines, intall an Edelbrock intake and carb with the engine still making lots of power and torque. Many of the crate GM engines are just an LT1 engine with a carb.