how do i wire up a three stage vtec d15b into a obd1 converted crx using a p28
09-27-2007, 08:55 PM
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how do i wire up a three stage vtec d15b into a obd1 converted crx using a p28
i know this may seem like a dumb question but i searched and could not seam to find any answers i have a 91crx si converted to obd1 running a p28 ecu and im putting in a d15b with the two vtec solenoids and was wondering what i need to do to wire that up. ex. do i wire them in together or what? any help or information is appreciated in advance thanks
09-27-2007, 08:57 PM
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Re: how do i wire up a three stage vtec d15b into a obd1 converted crx using a p28 (EFed up)
Correct me if I'm wrong but wasn't the three stage for fuel economy?
You may need a different ecu to work it properly. Or swap with a z6/y8 head.
You may need a different ecu to work it properly. Or swap with a z6/y8 head.
09-27-2007, 09:31 PM
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Re: how do i wire up a three stage vtec d15b into a obd1 converted crx using a p28 (danmdevries)
the three stage vtec d15b makes the same horsepower but with added fuel economy. It just runs like vtec-e under 2500 rpms then from 2500-4500 or so it runs like a normal 16v single cam with mild cam profiles, then from 4500 or so to redline it screams in wild cam profile vtec. I honestly think it is an amazing motor but that is just me.....honda innovation and engineering 
I have heard though that people have achieved 50+mpg with those motors in ef's.
As for the wiring I have no idea but i am sure you will need the ecu that came with that motor. Good Luck
I have heard though that people have achieved 50+mpg with those motors in ef's.As for the wiring I have no idea but i am sure you will need the ecu that came with that motor. Good Luck
09-27-2007, 09:37 PM
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Re: how do i wire up a three stage vtec d15b into a obd1 converted crx using a p28 (hondacivic90zc)
thanks for the info i hope there is a way i can use my p28 though
09-27-2007, 09:44 PM
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Re: how do i wire up a three stage vtec d15b into a obd1 converted crx using a p28 (EFed up)
be careful dude those things are fast. most people die when using those engines. 
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