crx head swap

i know theres a few of you guys on here that have fooled with these cars and was wondering what it took to swap the head to a vtec on a 90 hf. From what im looking at on the car the intake,head,and fuel system will have to completely change but im not sure which route to take with this, any info is helpful.

Google it. there is some Honda forums that will be helpfull

honda-tech.com

you will need a ecu p28 to be exact
vtec subharness
and wire it in


here is how to wire it ll in

http://www.rywire.com/catalog/images/instructions/obd1_subharness_instruction.jpg

or they have plug and play harnesess where all you do it clip it on and walla done

^ did they have obd0 P28's? - never owned older than a obd1 honda.
You will have to run the proper wire/sensors to activate v-tec, this is the v-tec pressure switch, v-tec solenoid wire, and another one but can't remember which. A change of ecu will be in order. I don't "think" you have to upgrade the fuel system any, i don't see why you would need to. www.honda-tech.com as stated should have a write up, there is good information on there, i been on there for years. Make sure you "search" first before asking a question on there, they are HUGE on flaming people for asking questions. Not too sure on the D-series heads, but you maybe able to re-use your manifolds and dizzy.
I shouldn't be too hard though, i swapped a DOHC ZC into a crx once, it we didn't have to do too much to make it work, i think i rewired some dizzy components but that was about it.

no the crx is obdo and you will need an obd0 to obd1(vtec) harness
everything is in the ecu and harness you get the vtec working its that simple

the vtec pressure switch is on the head he has to swap onto his d16a block

this is an easy and simple swap

man i wanna ad a turbo to my rex it has a 91 acura tl motor in it ...thats all i know... is it easy jeffrey .kinda wanna start drag racing for fun

i dont think acura had the tl in 91 lol

maybe its 95ish i forget id have to ask mark again ,,,just got it awhile back ,runs great kinda quick as is but plan on dropping about 5k into the motor this winter ,,but im a v8 guy so im lost with this honda ....ill be pming u alot for enfo

look at the dipstick and to the left there is a code on the middle left of the block whats the code say

d16zc???

zc 2603515

not a bad motor man not the best but certainly not bad


now the question on the turbo kit is how much power do you want to make, and how deep are your pockets lol

300 350 to start out would be nice 5k is spending money for now

thread jack......sorry man

well Dung Pile shouldnt be hard then man thats a good chunk of change

a tuner and a good one is the key to making power let me go do some research and ill let ya know realisticly what ya can do

you cannot do a mini-me with an HF bottom end. The Hf only has 2 valve reliefs cut into the pistons and all vtec heads are 4 valves per cylinder. swap the entire motor out

db15 complete swap is the best route to go and cheapest


http://www.hmotorsonline.com/shop/sc2000search.cgi?what=page&item=30021

i put an 0bd1 D15B in my brothers 96 civic ex, not bad motors, has a tad more power than his D16y8 did.

when it kicks in on my car you know it

thanks for the info guys. i found a 92 integra down from where i live that might be a good candidate for the swap. will be keepin this updated. need some fenders as well if anyone has any hit me up and bring em to finals

would be nice if its a first year GS-R with B17, i know a guy here with one, they only made 1500 DA GS-R's

sittin under a tree, been there for years.
not sure exactly what it is but it is a 2 door

well it will be pretty evident if its a GS-R or not when you pop the hood, the valve cover will say DOHC VTEC if your lucky