Hey I've got an 89 ef sedan dpfi with some minor mods but was wondering if I could put a fuel pressure regulator to add some fuel for top end RPM. Been thinking of puttin a walbro 255 but need to know info first. If anyone can help me pls do so. Thanks

 

u can put one on if u attach it to the fuel filter i think. but [/b]I[b] would just do it correct and add the fuel via the ecu. if u can find someone that knows how to chip and tune obd0.

and u should upgrade from that restrictive dpfi system

 

walboro on a dual point fuel system?? overkill...nor gonna work really. swap out to a mpfi setup

 

get the MPFI setup, the wiring is a nightmare, if you have a SI hardness you have a great start, but if you have to use a non si hardness ide go ahead and grab a couple of them and tighten up on your soldering skills. there are manuals all over this site, if you can find honda parts easy enough the part itself shoudlnt cost more than 150 bucks with the harness even. ive drove a 88hatch without and it was dog slow compared to the mpfi in my 91. throw on a ebay header and install it properly maybe a well designed air intake , good fuel,oil,cooling system,belts and accesories you should be good to go, untill you want something wayyy bigger. do the mpfi and grab a header. itll cost ya the same after 3 monthes of wasting gas with the walbro on an engine that doesnt need alteration to the way the fuel is injected into the lower performance fuel injection system. upgrade the ways it works, not forcefeed it till it ***** its diapers. save the walbro for when your installing the wilwood

 

you swap 4 wires....4! not hard my friend. but i guess some ppls wiring skills are hack as a ****

 

If you want to save headaches, just go to MPFI as mentioned before, the DPFI system is not good for either milage or power.

It was made to be cheap, for both the end user and more so for Honda to make. It's about up there with GM's Crapflier... .err Crossfire injection for bad ideas.

 

mpfi FTW