Whats the diffrence between them?

 

an Si has 4, an HF has 1.

 

they both have 4 injectors, and they flow the same...

 

same

 

The biggest difference is one is multi port (as in, there is one injector spraying into each port at the end of the itake runners), and the other is dual port (two inectors ... one for two runners.)

Multiport makes tuning/making power much easier, but both systems can be made to work very well.

 

The HF is not a DPFI system.
That would be the DX CRX and the DX, STD, and LX Civic's.

Check it out.

 

The HF is MPFI, Ive read many times that the HF injectors are the same size as all other honda, but my friend swapped his to SI from HF and he had to find somedifferent injectors ( then again his HF had 225,000 miles on it, then it went to a S/C SI, so maybe his old injectors just freaked out.) All hondas minus the new Preludes are supposed to be 240cc

 

"The HF is not a DPFI system.
That would be the DX CRX and the DX, STD, and LX Civic's."

Oops.

My bad.

 

LMAO it just seems like it only has 1.....

 

so how many does it have 2 or 4?

 

holy **** dude. the HF and Si have 4/FOUR/quarto/IV FOUR injecotrs in a HF