ED-EF Swaps - 96 non vtec into 91 dx hatch motor only HELP!

I have a 91 dx hatch 5 spd that runs pretty good but eats and leaks oil bad. I want to put a 96 non vtec engine in her and am wondering if i could just put my old tranny and old intake on it. My old intake is a dual point fi 1.5 with obviousely no fuel rail. Will this swap work or am i just dreaming?

Please help

Thanks in advance, Dave

I hope i'm not asking a dumb question. I'm pretty sure the trans and intake will bolt up but just wondering if it will work.

hmm. maybe if you could get your old distributor to bolt on it might just work.

Sorry im dumb. Are you telling me it cant be done? or are you saying the distributor might bolt on?

if your distributor will bolt on, it might work. the dizzys are different between OBD systems.

Is there somewhere I can research or cross reference between the two engines so i dont have to ask a million questions and piss everyone off. I would like to do this swap as cheaply as possible. I'm not looking for a race car here. I find my 1.5 is just fine but it's going to blow up soon I think.

good call man. im doin tha same thing and i need the exact same info. im throwing in a 99 d16y7 into my 91 dx hatch and i cant match the new hydrolic clutch tanny with my old cable clutch tranny. i needa know if the old tranny will match the 99 engine or any cheap ways to convert to a hydrolic clutch (most economic conversion PLEASE!!!!).

use your stock tranny. i think there might be a clutch issue, but im not sure.

I found a good place to cross reference honda parts. It's at www.hondapartsdeals.com. You can look up any part you want and they give you prices and fairly detailed pictures of the parts. It looks like my tranny should fit, My old intake might fit (probably not), my dizzy looks different but bolts in the same way, and my exhaust manifold will fit. Looks like it could be a real nightmare! Woo Hoo! If anyone has any ideas please let me hear them. Otherwise i'll let you's all know how it turns out! Hopefully the ol' 1.5 keeps chugging along for a bit.

ur gonna need the dizzy for the new motor cuz the wiring harness does not match to the old dizzy. i just tried yesterday. there's also one more plug on the harness that i cant find a match to. it's a plug right beside the two plugs for the dizzy. everything else matches up. theres an extra plug on the harness that your gonna have. its for the speedometer hookup on the new tranny. i gotta find a way to trip it or something because the 91 tranny is a cable speedometer. i also ran into a problem on the end of the wiring harness. one end plugs into the ecu but the other end is supposed to go to another harness (possibly to the cluster and such) but the 91 harness doesnt match up. im workin on a way to just match and connect the wires without using the whole plastic plug. ill let u know how it works but see what u can get for me also. THANKS and good luck. hopefully we can both get this $#!t done together.

You're using a new tranny as well as the motor swap. Where as i'm just swapping out the motor. Thanks for the dizzy info. Are you using a new harness as well because i'm trying to stick with my old '91 harness. then i might be able to keep the old dizzy hmm:eek:. What are you using for a throttle body and intake manifold?

im looking at my options now on using the old tranny because of the differences. im using the 99 intake manifold and wiring harness. the entire swap is gonna be from the 99 except for the tranny. but again, im stuck because the wiring that goes back to the cluster and stuff does not match the harness that is already installed in the 91.

new info!! wayyyyy 2 much conversions as far as obd0 to obd2. ur gonna run into hella problems on the wiring harness matching sensors up. not to mention ur gonna need a resistor box to switch from the dual point injection to multi point injection. i found the whole resistor box with wires on ebay for 50 bucks but the others on ebay didnt come with complete wires. i switched my decision to doing a mini-me swap. d16y7 with vtec head. good luck though email me with any new info if u get it to work. PEACE!!!!!!!!!!!!

yes i think you're right. Nothing seems to be able to bolt up exactly. I think Mabye I could swap the throttle bodies and keep the 96 intake manifold but stuff from the 91 probably won't fit to it. I just want a reliable motor that I can drop in my car to replace my tired neglected 1.5. Actually another 1.5 with low miles would be great! Anyone got a 1.5 DPFI with low miles for cheap? There must be lots of them out there if everyone is swapping them out for vtec's!

hey guys i did a engine swop with my ef civic twin carbie to a d15b vtec motor straight in but u will need to run the engine harness and also the harness under the dash and my old gear box bolts straight onto the new motor with no hassless just minor adjustments with some engine parts thats it the car runs really well and smooth

if i were you i would get the complete motor with the intake mainfold and the distrub and get someone to wire her up.

if you use the stock cable tranny make sure you use the flywheel and clutch that are in your car now the factory cable ones.

the distributer from a obd2 d17 has thesame bolt pattern as an obd0 91 d15 so put the engine in, put the old dpfi manifold on and put the dpfi dizzy on and it will run(if every thing is done right) there should no wiring, or ecu changes.

i have done the y7n swap on my 91 and you need to get a si wiring harness a si intake manafold and dizzy and ecu it is the easiest way to do it and you cant use the y7 manafold cuz the tb,and if you want it to work right you got to use a new dizzy or it will just keep throwing the cps code,and you need a little mpfi box of a si.o and mine is obd0

ORIGINAL: ef4life

the distributer from a obd2 d17

ummm the d17 does not use a dizzy but rather coil on plug design. ive skimmed over this a little so forgive me if i repeat others. being your using a 91 chassis i assume your using the 91 tranny which in turn you can use the 96 model clutch and pressure plate if you choose. the engine will bolt to your current transmission. i would use your current intake and exh manifold so no wiring has to be done. use your current wiring harness DO NOT swap harnesses as the newer harness WILL NOT plug into your factory harness. the dizzy is no big deal it bolts directly to the y7 head. this is the same motor i ran in my 91 si and was a great motor considering