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honda91efhatch · 01-18-2008, 06:44 PM

Hey, im lookin into a d16y8 motor. Wat all would i need 2 swap it into a 1991 dx hatchback that has a d15 non-vtec in it now? Ive looked on several threads but most are about a d16z6 swap, and i kno these motors arent exactly the same! I need help?!? parts list? time? money? sources? any thing and everything will help!
Thank you

honda91efhatch · 01-18-2008, 06:45 PM

by the way the d15 engine thats in the car now is a 16 valve if that helps any

philyphreak2127 · 01-18-2008, 09:01 PM

you would need the engine, wiring harness, and ecu. your tranny will fit. the intake manifold and all accessories should fit as well. I just did this swap myself except I had a d16y7.

honda91efhatch · 01-18-2008, 09:21 PM

can i run my stock ecu or do i need an ecu thats vtec compatable? wat kind of wiring harness do i need? n where can i get it?

honda91efhatch · 01-18-2008, 09:51 PM

What is the difference between a obd2a and obd2b?

YBLEGAL · 01-18-2008, 11:07 PM

the wiring is different. that's all i know to my knowledge.

D15Beater · 01-19-2008, 12:01 AM

Quote:

Originally Posted by philyphreak2127

you would need the engine, wiring harness, and ecu. your tranny will fit. the intake manifold and all accessories should fit as well. I just did this swap myself except I had a d16y7.

True....i did the same, but im still obd0. you can keep your stock harness, unless you have a dx, then youll need to do the mpfi swap. After that the motor should fit your trans, use your mounts, youll have to modify the timing belt cover a bit, use the clutch for the trans you use which should be a 89-91 si trans, pm6(wont run vtec) ecu or obd1 conversion harness and a p28 to run vtec. If you keep your harness youll have to run the two vtec wires and there you go.

The difference in the 2 obd2's is obd2a(1996-2000), obd2b(2001......)

ls/vtechatch91 · 01-19-2008, 02:09 AM

or u can run ur vtec off a toggle... and still keep it obd-0 with a pg7 ecu

...

honda91efhatch · 01-19-2008, 08:17 AM

off a toggel? that sounds kinda getto! relable?

honda91efhatch · 01-19-2008, 08:19 AM

run the two vtec wires? wat do u mean? jus soder them 2gether?

philyphreak2127 · 01-19-2008, 02:13 PM

I don't think he means solder them together but this is where I am lost. I have yet to wire vtec on my swap. so now I get to learn with you. lol

honda91efhatch · 01-19-2008, 02:29 PM

sounds like fun, i jus picked up the motor 2day! wanting 2 get all my info b4 i attempt the swap!!

ls/vtechatch91 · 01-19-2008, 02:35 PM

its not ghetto... my buddy had a mini me in his hf crx plus about 3500 into it... but it was beating gsr's all day long.. not stock one either.... but anyways... he wanted to stay obd-0 so he bought a pg7 ecu from the 1st gen integra... they give u about 10hp more.. than ran the vtec off a toggle.... then u could have vtec anytime u want...

philyphreak2127 · 01-19-2008, 02:42 PM

damn. I love that idea. you should have him do a write up on it in the tech section. It sounds like something I wanna look into.

honda91efhatch · 01-19-2008, 02:57 PM

yea, sounds simple! do a quick write up, i jus got a d16y8 n wouldnt mine the rumble of a low idel vtec! plus it sounds like a quick fix, dont sound like it requires 2 much kno how either! lets hear how 2 do it?!?!

ls/vtechatch91 · 01-19-2008, 04:11 PM

i wouldnt recomend having the toggle on under 3k rpms... theres not enough oil going threw it yet.. all u do is hook up a toggle from the selnoid and run it into the cab of the car.... takes like... 10 min if u know how too... but first swap your car to mpfi...

philyphreak2127 · 01-19-2008, 04:19 PM

alright got it. and I wouldn't wanna run it that low. its more of the fact I could turn it on and off when wanted that is so attractive.

honda91efhatch · 01-19-2008, 07:33 PM

wat if you already had a p28 ecu?

honda91efhatch · 01-19-2008, 07:37 PM

theres 3 wires that come off of the vtec soloniod arnt there? how would u manage that?

honda91efhatch · 01-19-2008, 07:51 PM

could you completely surpass any ecu by doing that?

ls/vtechatch91 · 01-20-2008, 02:41 AM

ya if u had a non vtec ecu u could.. but your car is still duel point or isnt it.. p28 ecu is obd-1...

honda91efhatch · 01-20-2008, 01:41 PM

but the y8 is obd2, so would i need an obd2 to obd0 wiring harness or could i jus run an obd2 ecu with out ne problems? jus plug n play?

D15Beater · 01-20-2008, 02:02 PM

The y8 doesnt have to run off a obd2 ecu or programming. it doesnt matter. You can keep dpfi, youR tranny, your obd0 wiring harness , intake manifold, exhaust manifold, mounts, axles. You dont have to change your ecu and stuff to obd2 just because the engine came from a obd2 car. IT WILL RUN FINE OFF A OBD0 ECU AND HARNESS. IF YOU WANT VTEC TO SWAP YOUR ECU FOR A PR3 OR PWO. You will need a mpfi swap if its not done already, youll also need to pin the ecu for vtec and a knock sensor. Your other option is do a mpfi swap, use a obd0 to obd1 conversion harness and a p28, If you do this though you will have to swap your distributor out for one from a 92-95 non vtec civic. Are you more confused yet??

D15Beater · 01-20-2008, 02:11 PM

Parts you will need if your car is DPFI

OBD0 setup

mpfi intake manifold (complete)
injector resistor box
obd0 mpfi ecu pm6,pr3,pwo (pm6 will not run vtec)
mpfi distributor (you will have to run wires for the extra sensor to the ecu)
spare wiring harness ( you will need some wires when you pin vtec)
knock sensor (if you use the pr3 or pw0)

Obd1 setup

same as above basically but you will need a p28 or other obd1 vtec ecu
obd1 nonvtec distributor (z6 dizzy wont bolt up to a y8 head rite)
obd0 - obd1 conversion harness.....

philyphreak2127 · 01-20-2008, 07:18 PM

If I am right....Blanco is saying go with the d16z6 motor it is obd-1 so you can run a p28 which is more tuneable so you have better power potential. also you won't have to do the work to convert it to obd-2 and not acheive horse power ratings that would make the swap worth it. Unfortunely I didn't have this option with my car being a 98, I can't swap in a z6 it wasn't offered in a late enough model.

01-18-2008, 06:44 PM	#1
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	need help with d16y8 swap?!?! Hey, im lookin into a d16y8 motor. Wat all would i need 2 swap it into a 1991 dx hatchback that has a d15 non-vtec in it now? Ive looked on several threads but most are about a d16z6 swap, and i kno these motors arent exactly the same! I need help?!? parts list? time? money? sources? any thing and everything will help! Thank you

01-18-2008, 09:01 PM	#3
philyphreak2127 The name's Sam Join Date: Oct 2007 Location: morrison, co Age: 20 Posts: 1,510 iTrader: 0 / 0% Ride: 98 civic dx sedan, 80 trans am Blog Entries: 1 Rep Power: 26	you would need the engine, wiring harness, and ecu. your tranny will fit. the intake manifold and all accessories should fit as well. I just did this swap myself except I had a d16y7. __________________ Parts for sale: http://hondaswap.com/parts-sale-trad...-parts-115446/ Build Threads: Civic: http://hondaswap.com/civic-del-sol-eg-ek/d16y8-n-build-112401/5.html Trans Am: http://hondaswap.com/other-vehicle-discussions/1980-trans-am-build-thread-oh-yeah-its-official-149941/#post1054318

01-19-2008, 02:13 PM	#11
philyphreak2127 The name's Sam Join Date: Oct 2007 Location: morrison, co Age: 20 Posts: 1,510 iTrader: 0 / 0% Ride: 98 civic dx sedan, 80 trans am Blog Entries: 1 Rep Power: 26	I don't think he means solder them together but this is where I am lost. I have yet to wire vtec on my swap. so now I get to learn with you. lol __________________ Parts for sale: http://hondaswap.com/parts-sale-trad...-parts-115446/ Build Threads: Civic: http://hondaswap.com/civic-del-sol-eg-ek/d16y8-n-build-112401/5.html Trans Am: http://hondaswap.com/other-vehicle-discussions/1980-trans-am-build-thread-oh-yeah-its-official-149941/#post1054318

01-19-2008, 02:42 PM	#14
philyphreak2127 The name's Sam Join Date: Oct 2007 Location: morrison, co Age: 20 Posts: 1,510 iTrader: 0 / 0% Ride: 98 civic dx sedan, 80 trans am Blog Entries: 1 Rep Power: 26	damn. I love that idea. you should have him do a write up on it in the tech section. It sounds like something I wanna look into. __________________ Parts for sale: http://hondaswap.com/parts-sale-trad...-parts-115446/ Build Threads: Civic: http://hondaswap.com/civic-del-sol-eg-ek/d16y8-n-build-112401/5.html Trans Am: http://hondaswap.com/other-vehicle-discussions/1980-trans-am-build-thread-oh-yeah-its-official-149941/#post1054318

01-19-2008, 04:19 PM	#17
philyphreak2127 The name's Sam Join Date: Oct 2007 Location: morrison, co Age: 20 Posts: 1,510 iTrader: 0 / 0% Ride: 98 civic dx sedan, 80 trans am Blog Entries: 1 Rep Power: 26	alright got it. and I wouldn't wanna run it that low. its more of the fact I could turn it on and off when wanted that is so attractive. __________________ Parts for sale: http://hondaswap.com/parts-sale-trad...-parts-115446/ Build Threads: Civic: http://hondaswap.com/civic-del-sol-eg-ek/d16y8-n-build-112401/5.html Trans Am: http://hondaswap.com/other-vehicle-discussions/1980-trans-am-build-thread-oh-yeah-its-official-149941/#post1054318


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01-18-2008, 06:45 PM	#2
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	by the way the d15 engine thats in the car now is a 16 valve if that helps any

01-18-2008, 09:21 PM	#4
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	can i run my stock ecu or do i need an ecu thats vtec compatable? wat kind of wiring harness do i need? n where can i get it?

01-18-2008, 09:51 PM	#5
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	What is the difference between a obd2a and obd2b?

01-18-2008, 11:07 PM	#6
YBLEGAL Regular Member w/ Cheese Join Date: Aug 2006 Location: NW Indiana Posts: 2,746 iTrader: 0 / 0% Ride: 2000 EJ8 w/ SiR-II Rep Power: 72	the wiring is different. that's all i know to my knowledge.

01-19-2008, 02:09 AM	#8
ls/vtechatch91 Senior Member Join Date: Sep 2006 Location: washington Age: 22 Posts: 339 iTrader: 0 / 0% Ride: 91 integra with ls/vtec... Rep Power: 10	or u can run ur vtec off a toggle... and still keep it obd-0 with a pg7 ecu ...

01-19-2008, 08:17 AM	#9
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	off a toggel? that sounds kinda getto! relable?

01-19-2008, 08:19 AM	#10
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	run the two vtec wires? wat do u mean? jus soder them 2gether?

01-19-2008, 02:29 PM	#12
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	sounds like fun, i jus picked up the motor 2day! wanting 2 get all my info b4 i attempt the swap!!

01-19-2008, 02:35 PM	#13
ls/vtechatch91 Senior Member Join Date: Sep 2006 Location: washington Age: 22 Posts: 339 iTrader: 0 / 0% Ride: 91 integra with ls/vtec... Rep Power: 10	its not ghetto... my buddy had a mini me in his hf crx plus about 3500 into it... but it was beating gsr's all day long.. not stock one either.... but anyways... he wanted to stay obd-0 so he bought a pg7 ecu from the 1st gen integra... they give u about 10hp more.. than ran the vtec off a toggle.... then u could have vtec anytime u want...

01-19-2008, 02:57 PM	#15
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	yea, sounds simple! do a quick write up, i jus got a d16y8 n wouldnt mine the rumble of a low idel vtec! plus it sounds like a quick fix, dont sound like it requires 2 much kno how either! lets hear how 2 do it?!?!

01-19-2008, 04:11 PM	#16
ls/vtechatch91 Senior Member Join Date: Sep 2006 Location: washington Age: 22 Posts: 339 iTrader: 0 / 0% Ride: 91 integra with ls/vtec... Rep Power: 10	i wouldnt recomend having the toggle on under 3k rpms... theres not enough oil going threw it yet.. all u do is hook up a toggle from the selnoid and run it into the cab of the car.... takes like... 10 min if u know how too... but first swap your car to mpfi...

01-19-2008, 07:33 PM	#18
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	wat if you already had a p28 ecu?

01-19-2008, 07:37 PM	#19
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	theres 3 wires that come off of the vtec soloniod arnt there? how would u manage that?

01-19-2008, 07:51 PM	#20
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	could you completely surpass any ecu by doing that?

01-20-2008, 02:41 AM	#21
ls/vtechatch91 Senior Member Join Date: Sep 2006 Location: washington Age: 22 Posts: 339 iTrader: 0 / 0% Ride: 91 integra with ls/vtec... Rep Power: 10	ya if u had a non vtec ecu u could.. but your car is still duel point or isnt it.. p28 ecu is obd-1...

01-20-2008, 01:41 PM	#22
honda91efhatch 91 ef/dx project Join Date: Dec 2007 Location: charleston, sc Posts: 56 iTrader: 0 / 0% Ride: 91 ef hatchback project Rep Power: 4	but the y8 is obd2, so would i need an obd2 to obd0 wiring harness or could i jus run an obd2 ecu with out ne problems? jus plug n play?

01-20-2008, 02:02 PM	#23
D15Beater HNFTuning Join Date: Jun 2007 Location: Concord N.C. Posts: 548 iTrader: 0 / 0% Ride: or die.... Blog Entries: 1 Rep Power: 19	The y8 doesnt have to run off a obd2 ecu or programming. it doesnt matter. You can keep dpfi, youR tranny, your obd0 wiring harness , intake manifold, exhaust manifold, mounts, axles. You dont have to change your ecu and stuff to obd2 just because the engine came from a obd2 car. IT WILL RUN FINE OFF A OBD0 ECU AND HARNESS. IF YOU WANT VTEC TO SWAP YOUR ECU FOR A PR3 OR PWO. You will need a mpfi swap if its not done already, youll also need to pin the ecu for vtec and a knock sensor. Your other option is do a mpfi swap, use a obd0 to obd1 conversion harness and a p28, If you do this though you will have to swap your distributor out for one from a 92-95 non vtec civic. Are you more confused yet??

01-20-2008, 02:11 PM	#24
D15Beater HNFTuning Join Date: Jun 2007 Location: Concord N.C. Posts: 548 iTrader: 0 / 0% Ride: or die.... Blog Entries: 1 Rep Power: 19	Parts you will need if your car is DPFI OBD0 setup mpfi intake manifold (complete) injector resistor box obd0 mpfi ecu pm6,pr3,pwo (pm6 will not run vtec) mpfi distributor (you will have to run wires for the extra sensor to the ecu) spare wiring harness ( you will need some wires when you pin vtec) knock sensor (if you use the pr3 or pw0) Obd1 setup same as above basically but you will need a p28 or other obd1 vtec ecu obd1 nonvtec distributor (z6 dizzy wont bolt up to a y8 head rite) obd0 - obd1 conversion harness.....

01-20-2008, 07:18 PM	#25
philyphreak2127 The name's Sam Join Date: Oct 2007 Location: morrison, co Age: 20 Posts: 1,510 iTrader: 0 / 0% Ride: 98 civic dx sedan, 80 trans am Blog Entries: 1 Rep Power: 26	If I am right....Blanco is saying go with the d16z6 motor it is obd-1 so you can run a p28 which is more tuneable so you have better power potential. also you won't have to do the work to convert it to obd-2 and not acheive horse power ratings that would make the swap worth it. Unfortunely I didn't have this option with my car being a 98, I can't swap in a z6 it wasn't offered in a late enough model. __________________ Parts for sale: http://hondaswap.com/parts-sale-trad...-parts-115446/ Build Threads: Civic: http://hondaswap.com/civic-del-sol-eg-ek/d16y8-n-build-112401/5.html Trans Am: http://hondaswap.com/other-vehicle-discussions/1980-trans-am-build-thread-oh-yeah-its-official-149941/#post1054318

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need help with d16y8 swap?!?!

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