mpfi conversion - HondaClub.com

japracer4 · 07-14-2006, 07:59 PM

does anyone know exactly what is all needed for a mpfi conversion. i have a 90dx with the d15a2 that is throttle body. thanks

**EyesofFreedom** · 07-14-2006, 11:13 PM

my educated guess would be

1-injectors
2-fuel rail
3-fuel pressure regulator
4-intake manifold
5-distributor (need control unit that is inside of it-it tells injectors when to actually spray the go go juice)
6-computer? (may or may not need)
7-fuel pump (tbi requires less psi than mpfi)
8-wire harness for injectors
9-fuel lines and adapters (usually doesnt come with a fuel rail unless you buy a junkyard one)
10-oh, and the cylinder head if you want direct port injection

after all of that you might be better of going with a b18 motor tranny combo-few bucks more and a lot less hassle! You might even find a whole parts car.

88crex · 08-16-2006, 05:06 PM

you need a complete intake assy tb all that good stuff a mpfi ecu and mpfi throttle cable you can use you existing but i would change

you definatley do NOT need a FUEL PUMP
i converted my crx to mpfir 1.5 block si head 95 ex intak assy pg7 teg computer ran 15.8 in the quater mile if you need info go to fourthgenhatch.com

07-14-2006, 07:59 PM	#1 (permalink)
japracer4 Junior Member Join Date: Jul 2006 Posts: 2	mpfi conversion does anyone know exactly what is all needed for a mpfi conversion. i have a 90dx with the d15a2 that is throttle body. thanks

07-14-2006, 11:13 PM	#2 (permalink)
EyesofFreedom Official Instigator! Join Date: Jun 2006 Location: Rincon, Georgia United States Posts: 2,103	my educated guess would be 1-injectors 2-fuel rail 3-fuel pressure regulator 4-intake manifold 5-distributor (need control unit that is inside of it-it tells injectors when to actually spray the go go juice) 6-computer? (may or may not need) 7-fuel pump (tbi requires less psi than mpfi) 8-wire harness for injectors 9-fuel lines and adapters (usually doesnt come with a fuel rail unless you buy a junkyard one) 10-oh, and the cylinder head if you want direct port injection after all of that you might be better of going with a b18 motor tranny combo-few bucks more and a lot less hassle! You might even find a whole parts car. __________________ Myspace me... http://www.myspace.com/hondaclub_eyesoffreedom Ferio Project car build page... http://www.my2002ex.mysite.com My other passion... http://www.nscale.org/defaulteng.htm

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08-16-2006, 05:06 PM	#3 (permalink)
88crex Junior Member Join Date: Aug 2006 Posts: 9	you need a complete intake assy tb all that good stuff a mpfi ecu and mpfi throttle cable you can use you existing but i would change you definatley do NOT need a FUEL PUMP i converted my crx to mpfir 1.5 block si head 95 ex intak assy pg7 teg computer ran 15.8 in the quater mile if you need info go to fourthgenhatch.com