only for smart honda fans

i have a friend that has a d16y7/tranny/computer/axles/wirring harness(completeswap) and he will install this in my 4th gen civic(1990) for 1000. that is realy cheap to me because i need a new harness b/c mine is so hacked up i have shorts.

we came across a problem.. he doesnt think the d16y7 (sourced form a 98 civc) will fit in my civic(1990) because the motor mounts a very diffferent.
i've heard these are bolt in motors but wtf??

here are my questions.

#1 is there an inexpensive and easy way to make the d16y7 tranny fit?
#2 my computer is from a d16(mpfi) will i need to reuse that ? or can i use the newer ob2?
#3 if the answer is no b/c of the wiring what if a use a newer wiring harness?
#4why arent the mounts tha same from the 98 civic as the 90 civic?
#6 this is the most important question how can i retro fit the d16y7 mounts to fit in the civic?

he hs some experince
ex: installed greddy turbo on his car/installed gsr's into cars

how ever i think im the first 4th gen hes worked on

i have a friend that has a d16y7/tranny/computer/axles/wirring harness(completeswap) and he will install this in my 4th gen civic(1990) for 1000. that is realy cheap to me because i need a new harness b/c mine is so hacked up i have shorts.

we came across a problem.. he doesnt think the d16y7 (sourced form a 98 civc) will fit in my civic(1990) because the motor mounts a very diffferent.
i've heard these are bolt in motors but wtf??

here are my questions.

#1 is there an inexpensive and easy way to make the d16y7 tranny fit?
#2 my computer is from a d16(mpfi) will i need to reuse that ? or can i use the newer ob2?
#3 if the answer is no b/c of the wiring what if a use a newer wiring harness?
#4why arent the mounts tha same from the 98 civic as the 90 civic?
#6 this is the most important question how can i retro fit the d16y7 mounts to fit in the civic?

he hs some experince
ex: installed greddy turbo on his car/installed gsr's into cars

how ever i think im the first 4th gen hes worked on


Mounts shouldnt be that different... Theyre both D series engines... I dont know about the later EK/EJs engines, but with the engines from an EG into an EF you simply swap the mount that bolts to the side of the engine under the timing cover from your stock engine onto the new engine...

And why would u do this swap? Isnt the y7 a non VTEC with even less HP (106HP) than the A6 (108HP) (u said u had a D16 with MPFI so I assume the D16A6)?

i have a friend that has a d16y7/tranny/computer/axles/wirring harness(completeswap) and he will install this in my 4th gen civic(1990) for 1000. that is realy cheap to me because i need a new harness b/c mine is so hacked up i have shorts.

we came across a problem.. he doesnt think the d16y7 (sourced form a 98 civc) will fit in my civic(1990) because the motor mounts a very diffferent.
i've heard these are bolt in motors but wtf??

here are my questions.

#1 is there an inexpensive and easy way to make the d16y7 tranny fit?
#2 my computer is from a d16(mpfi) will i need to reuse that ? or can i use the newer ob2?
#3 if the answer is no b/c of the wiring what if a use a newer wiring harness?
#4why arent the mounts tha same from the 98 civic as the 90 civic?
#6 this is the most important question how can i retro fit the d16y7 mounts to fit in the civic?

he hs some experince
ex: installed greddy turbo on his car/installed gsr's into cars

how ever i think im the first 4th gen hes worked on


1.. if u use the Y7 tranny, u will need to convert to a hydrolic system as this is a hydro tranny and not cable. use an Si tranny from a 4th gen
2.. Yes u can use the d16 ecu as long as its an obd-0 ecu and its for the right tranny (auto or manual)
4... the mounts are different because they are different cars... the actual motor mount will be the same tho, and since ur using a 4th gen cable tranny then the mounts will work.

Yea, I didnt think of that, if this is the first EF hes worked on, he may not know u have to swap trannies to the cable tranny (for ease of install, the mounts are the came, and no real advantages fabricating a hydro tranny in there, atleast none worth it when u have an Si tranny in there already)...

ok, here;s what i had to do to make my d15 vtec fit which is very similar to your motor. I took the old motor mount off my original motor and mounted it to the new one, u have to trim the timing cover for it to fit right but it's not that big a deal. I would convert to obd1 to get all you can out of the motor but get the obd jumper harness and wiring is alot easier. The motor you have is actually a obd2 motor but it will work just like the obd1 motor as long as you use the odb1 ecu. If you stay obd0 then you'll have to wire up vtec, which all in all is three wires between 2 differ connectors. Do some searching ont he forums and you will find plenty of info on this swap, and just so you know, it'll pretty much be the same as a d15 vtec swap or d16z6 swap so you can get info from those swaps also.

i own a d15 with mpfi but its busted and the wiring harness is messed up.. either i do this swap or ill find a d16z6 but i dunno realy

so um.. ill need to convert to obd1? how do i do that? if i do the z6 will tha newer ecu work in a 4th gen? also i told the mechanic that we prob just have to swap mounts but he was very unsure.... its his first 4gen project.... he's buying a crx off me so that how we met.

i put a d15vtec in my car from japan, i did have the non vtec d15 in. the d15vtec, d16z6, and d16y8 and y7 are all basically the same as far as making it fit, you have to use your onld motor mounts, and when you use the 4 gen si tranny the mounts on it line up since it's the tranny for the car. And if you have a hf and i think there are a couple of models that have differ front knuckle slpine counts for the axels, so maybe make sure if you go w/ the si tranny you don't have to compensate for that suprise if it apply's cause it would suck to get it int here and then the axels didn't fit. But if you wanted you can have custom axels made instead of changing out the knuckle splines

so um.. ill need to convert to obd1? how do i do that? if i do the z6 will tha newer ecu work in a 4th gen? also i told the mechanic that we prob just have to swap mounts but he was very unsure.... its his first 4gen project.... he's buying a crx off me so that how we met.
also the mount that worries the mech is the passengar side mount

well i need a new tranny but we MIGHT clean up and fix what ever is making reverse hard and popping 2nd gear out of gear. any one know where to find a si tranny or a zc tranny ?? also remember that i am super broke and im looking for the cheapest and most effective alternative to anything

ok to run obd1 and just so you know i havn't done the swap u are doing but i did mine so things might be different but i dont think it will be. For 5spd use a p28 ecu from a 92-95 civic si or ex, get the obd0 to obd1 jumper harness (you can find it on ebay) and wiring will be much easier. you'll need a stock 88-91 i think maybe 90, civic or crx mpfi engine harness. to convert that harness to obd1 the injector plugs, dizzy plugs, have to be changed out and a couple sensors are in differ places and a few wires have to be relocated but once you get into it it gets easy if you do the right research and get the right info. I jumper harness came w/ some wiring instructions that helped out a lot and plus i bought a book on honda engine swaps to help to but if you run into trouble then you can get help from the forum too. There are some other small things that have to be changed but they are very obvious when you are going thru the swap and fairly easy to figure out how to make it work. I had never done a honda swap before and did this one and it is running fine, but i did do a lot of home work.

your right home work is key.. any sites you recomend?

search the forum and search yahoo and google for all the swaps i listed above and you should get plenty of info. One other thing you will need to get is a 4 wire o2 sensor too and your jumper harness should tell ya how to wire it up but once you start thru the searches you'll figure out which ones to look at and which ones to leave alone but most of the stuff you find is pretty good info just some things are worded differently but basically acomplish the same thing so it just depends pretty much where some one wants to start at. I started w/ the harness at the injectors and then went from there.

ok thanx... just one more thing what jumper?

it's a obd0 to obd1 jumper harness is what it is called, search it on ebay and you'll find it

Bro, if u have a 1000 to pay old dude, Id honestly reccomend just getting a D15B VTEC as someone mentioned earlier a D16Y8, or a D16Z6, the Y7 engine is def not worth the trouble... Its only maybe a few more horses than your current engine... And with your $1000 budget, u can have a damn nice swap... The total for my swap when all is said and done (doing everything by the book) will cost me roughly $1400, and thats the D15B VTEC... You can probably get away much cheaper, like I said, mine was the works, new cap, rotor, NGK wires, clutch kit, timing belt, tensioner, pump, ect, ect, ect, plus my engine had a few problems with sensors I had to buy... I didnt cut corners at all, u could probably cut some and be below the $1000 budget... Course this dosnt include installation, which I am doing myself, with some help... Ive never done anything of this calibre before, but Im willing to try... It shouldnt be too hard, and theres plenty of help on the web... Im sure you could do it too with some help... And it would put u at about 125-130HP compared to the 106HP of the Y7... Just my :2cents:...

$1000 is a rip. I know people who do it for $250 all day long. Since you are replacing the ecu, harness, etc, etc, why don't you just save up about another grand and just do a B16 or B18 swap. I have seen B18's here go for 300-400 for the the whole engine, tranny, axels, ecu. and harness. (but then again these country junk yards don't usually know what they have)

well i have like 300 bux but i'll come up with the rest soon... the reason its alot is cuz i really dont know how to rewire a whole car.
the harness is hacked up to bits so i have to start from scratch.
he is also painting the engine bay black, re locating the rad. resevoir and battery, de greasing the engine, tranny and axles, then painting them, plus a short shifter linkage(woopee).
i d drop it in my self but i cant find much info on wiring up a whole harness. If i find a z6 hell drop the price a bit

btw doug what tranny are you running? and what ecu? and was the passenger mount (near the headlight) easy to install ?? ? ?

Get a y8

lol wtf back from the dead. I didn't even remember replying to this haha.

lol wtf back from the dead. I didn't even remember replying to this haha.
same here

for $1400 i got a DOHC ZC with new belt, tensioner all installed in a day. Already had an SI wireharness and LS ECU when i did my DPFI to MPFI swap.