swap problems b20 in crx - Honda-Tech - Honda Forum Discussion

swap problems b20 in crx

Old 06-10-2009, 06:10 PM
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Default swap problems b20 in crx

i am swapping a b20z in my crx, obviously its obd2, my main concern is that i want to convert my crx to obd1... i know i need the jumper harnes, what else would i need to be able to run the b20.... i am using my ls intake manifold... do i need to use a da integra distributor in the b20 also.... just hoping someone could shed some light on the subject........... thanks
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Old 06-10-2009, 06:14 PM
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Default Re: swap problems b20 in crx

if you are going obd1 use the b18 disty i would assume.
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Old 06-10-2009, 06:19 PM
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Default Re: swap problems b20 in crx

thats what i was thinking but the dizzy is obd0
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Old 06-10-2009, 06:22 PM
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Default Re: swap problems b20 in crx

Originally Posted by ktmclay View Post
thats what i was thinking but the dizzy is obd0
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Old 06-10-2009, 06:43 PM
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Default Re: swap problems b20 in crx

the 92-93 disty is obd1 for sure
possibly some 94-95 obd1
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Old 06-10-2009, 06:47 PM
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Default Re: swap problems b20 in crx

even though its out of a da
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Old 06-10-2009, 08:24 PM
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Default Re: swap problems b20 in crx

if you want to go obd1 then use the ls dizzy from a 92-95 teg. it will work
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Old 06-11-2009, 02:16 AM
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Default Re: swap problems b20 in crx

since you have a obd0 vehicle using the obd0 ecu from an 89-90-91 da would be most benificial, use the da ecu,the da intake manifold along with TB,enjectors and dizzy and you should be fine!

you will have some plugs left behind unwired such as the knock sensor by the oil filter but dont worry these do not need to be wired with the da ecu nor will it give a code or problem that way!

GL bro, Iam sure youll be happy to have a 2lt monster with all that tq,bottom end with a light chasis like that and good choice with the usdm Z motor,enjoy!
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Old 06-11-2009, 09:33 AM
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Default Re: swap problems b20 in crx

you really should go obd1, to take advantage of the power availabe.
although you dont have to.
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Old 06-11-2009, 09:38 AM
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Default Re: swap problems b20 in crx

do the obd1 swap run all electronics from a obd1 teg and you will be good, you will love that motor i had one in a hatch a few years back and that bitch pulled nasty for a 2000$ car put tha bottle on it 50 shot could walk zs and gts like nothing
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Old 06-11-2009, 12:43 PM
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Default Re: swap problems b20 in crx

well i was told by a buddy that if i use the da integra ecu then it wont be quite enough fuel
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Old 06-11-2009, 03:02 PM
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Default Re: swap problems b20 in crx

Originally Posted by ktmclay View Post
well i was told by a buddy that if i use the da integra ecu then it wont be quite enough fuel
i dont think that is true
but if it is.
easy fix, adjustable fuel regulator

or buy a programed ecu
or run s300
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Old 06-11-2009, 03:33 PM
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Default Re: swap problems b20 in crx

Originally Posted by xaine View Post
you really should go obd1, to take advantage of the power availabe.
although you dont have to.
Agree.
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Old 06-11-2009, 06:16 PM
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Default Re: swap problems b20 in crx

i have a b20 swapped into my crx. And its a piece of ****. haha
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Old 06-11-2009, 07:07 PM
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Default Re: swap problems b20 in crx

i think i just chip my pr4.... i have never seen anyone do much with one though... it will prolly be difficult cause i dont remember seing any maps for a pr4... **** it im just gonna convert to obd1 and run a chipped p28 or p75
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Old 06-11-2009, 09:32 PM
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Default Re: swap problems b20 in crx

I too agree with the guys above,I would suggest going obd1 with a ls ecu, and your buddy is off with his guess, the ls ecu actually runs the b18b a little rich just like any other honda map therefore its actually bang on for the b20z. and for the guy with a b20 crx claiming its crap what you comparing it too? I had a obd1 b20z in an eg vx with an ls intake & exhaust manifold,dizzy,ecu(all available for dirt cheap just simple b18b stuff) along with an intake,itr catback and I ran 14.9, I would say thats fast considering I had no tune,no vtec,barely any performance mods,a stock and quite honda exhaust! you my friend either cant drive,have a b20b(20 hp,0.8 compression less than a b20z plus older) or your just comparing it to built cars. a freind has a stock jdm b20b(p8r head) with cams i/h/e in a ef and runs high 13's which aint bad IMO!
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