Which would be best
 

hey everyone , new guy here , so if i say somethin dumb just let me know , as for my question , i was wondering which would be better to chip my P28 , or to upgrade my fuel rail , injectors, and fuel pressure reg, which would net me better results, i got a 95 EX 5 speed with a decently built D16Z6 (10.5 comp pistons , rods , comp nitrous cam ,skunk2 intake mani , edelbrock TB , header , pulleys , can anyone help me out

Re: Which would be best
 

oh yeah , i plan on donig both , but which would be better to do first ?

Re: Which would be best
 

The obvious answer is chipping. You can control timing and fuel.

Re: Which would be best
 

your stock injectors will be fine, a fuel rail is a waste of money, and who needs a pressure regulator when you can wide band tune with a chipped ecu? so the answer is chip the ecu, and do some wideband tuning......you have any valve train work? if so chipping the ecu will be sweet so you can rev the piss out of it....oh and you should boost the ---- out of that thing if you really wanna go fast... ;)

Re: Which would be best
 

Yeah good springs and retainers will be a plus.

Re: Which would be best
 

And a new vent air freshener... the inside of you car smells like wet dog. :-\

Re: Which would be best
 

hahaha my lil bro works at auto zone, and i just got some new air fresheners a couple weeks ago , ok , by wideband tuning what do u mean , i know my share about moving metal parts , but this tuning is somethin completely new i would like to getin and try my hand at , and for boosting it , id love to , but 10.5 is a lil much i think , and bein bored 20 over i dunno if the cylinders would hold.....

Re: Which would be best
 

10.5psi is not considered "high boost".

..how much did you overbore? .25? ..that's -----. It'll be OK. Boost away!

As far as tuning, a wideband oxygen sensor is just that.. a wider spectrum sensor for detecting your air to fuel ratio. This will tell you how rich/lean you're running...

Re: Which would be best
 

not 10.5 psi...10.5:1 c/r......and thats not to high to boost, a stock b16 is 10.2:1 c/r and it will hold 10 psi all day every day with a good tune...wideband tuning in a nut shell.....you chip the ecu, choose your editing software ( turboedit or uberdata ) and you can have someone like xenocron chip the ecu for you and make you a map as a means of a starting point if your confused how to, its $75, then a wide band is a new oxygen sensor, a controller, and a digital display, not hard to install but cost about $300, the digital display will show your air/fuel ratio at any given rpm, this allows you to make accurate changes to the map when your "tuning" it with turboedit or uberdata, all motor you want to see aggressive timing and probably around 14:1-15:1 afr across the board....dont despair after about 15-20 hours of resarch you will understand better, but you need to go to pgmfi.org and do some research...best of luck ;)