i have a 90 crx dx w/d1.5b2. what i cant understand is why only dual injectors on this model but multi injectors on hf and si. whats up with this? are the hf and si the same? any advantages? difficult to convert? too many questions?

 

"why only dual injectors on this model but multi injectors on hf and si"
gas mileage

"are the hf and si the same?"
both multi port but si has a sunroof and some other features

any advantages?
although si has more hp the dx is less expensive and better on gas

"difficult to convert?"
the wiring can make you go crazy if you dont look at the whole picture


just got done doing this conversion and am satisfied with the outcome