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Swapping 1.6 SOHC Vtec motor for JDM 1.5 SOHC motor.. HELP

Old 01-Feb-2008, 11:27 AM
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Swapping 1.6 SOHC Vtec motor for JDM 1.5 SOHC motor.. HELP

Hey guys ... not sure if this is even in the right forum... but its JDM related atleast... Can you help me...

My D16Y8 lost compression in 1 cylinder... with 200,000 KM and it burning oil.. I cant see just repairing the top end... it seems pointless ... Ive found a Japanese 1.5 SOHC Vtec motor... and heard there are some minor modifications that need to be done to make this fit..

1) Intake Manifold Modifications --- Can someone elaborate more on this for me

2) The Vtec Solenoid.--- They said I would need to remove my Vtech solenoid and replace the one in the other motor because it was different... --- Can someone elaborate on this.. and what special tools if any i would need to do this

3) Blocking the whole for the EGR valve that this motor has but we dont need here... -- Self explanitory.. Dont need any info on this...


but if anyone knows of ANYTHING else that needs to be done.. or any tricks... or special tools that are needed PLEASE dont hesitate to respond... any and all information will be greatfully appreciated


also Any information on dealings with Tiger Japanese and their motors would be great

Thanks in advance

Dave

Last edited by drpdndshvd; 01-Feb-2008 at 11:29 AM.
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Old 01-Feb-2008, 01:04 PM
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well the intake manifold modifications might be that you might need to re-use your old one, this will eliminate the EGR valve/port b/c your old one won't have a EGR. If you do re-use your old one make sure to use a new intake manifold gasket.
If you have to remove the vtec solenoid and re-use your old one its probably b/c they're giving you a crappy VTEC-E engine (the E stands for economy) which has dual stage vtec, so it has a different vtec solenoid with 2 actual solenoids on it to activate both stages of vtec.
If you ask me you DON'T want one of these VTEC-E engines. They get good gas mileage but are slow as hell....hence the Economy part.
I'd just get either another D16Y8 or a JDM d15b (not the VTEC-E engine though). An easy way of distinguishing is, the VTEC-E engines say Vtec-E right on the valve cover (i beleive), the EGR valve and the dual-solenoid vtec solenoid.
The problem with these engines is that the ECU you need to use to activate both vtec stages is extremely RARE, so if you use your stock ecu it'll only activate the one stage of vtec.
They way the VTEC-E engines work is up to like 3000rpms it only works on 3 valves per cylinder, then the 1st stage of vtec engages (at 3000rpms) making all 4 valves per cylinder work, then at 5000rpms (or so) the second stage of vtec engages (like a normal vtec engine) for better high rpm performance.
But the problem is, since our ecus only have the ability to control the 1 stage of vtec the engine will run on 3 valves per cylinder until 5000rpms when vtec engages, then all of a sudden its like the engine wakes up and starts moving, so vtec will kick in hard, but its only b/c the engine is extra slow before vtec kicks in at 5000rpms.
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Old 01-Feb-2008, 01:08 PM
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YEa he told me that the motor that they have is the dual stage Vtec motor.. so what your saying is exactly what hes selling me.. However.. If i switch out my Vtec solenoid with my current one.. it will run the same as the Vtec motor that i currently have in it correct? The later part of what you mentioned would only affect me if i kept the Vtec-E solenoid in ?
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Old 01-Feb-2008, 01:19 PM
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no, it'll be wayyyyyyyy slower.
I wouldn't buy a VTEC-E engine even if it was free.
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Old 01-Feb-2008, 01:22 PM
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alright.. thanks for the advice... Im not buying it for a quick motor.. its just for my daily but ill have to find a non vtec E motor...

any other advice?

who should i deal with?
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Old 01-Feb-2008, 01:41 PM
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Just got off the phone with a mechanic friend from option JDM... and apparently the motors are no where near as close as Tiger was telling me... so i guess im going to have to stick to a North American Motor...

Thanks to the guys from option from saving me the hassle of ordering a motor that needs a lot more work to fit then i was being told!
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Old 01-Feb-2008, 03:20 PM
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yeah tiger doesn't seem to have a good track record
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Old 01-Feb-2008, 03:29 PM
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Anyone know what i would need to do to use a motor out of an automatic in a 5 speed? would i just use my flywheel and goodies and transfer them to the motor? or would it not work at all? the scrap yard said it shoudl work no problem but i want to make sure

Thanks for the help
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Old 01-Feb-2008, 04:16 PM
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A motor from an auto will work, just use your clutch and flywheel.
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Old 01-Feb-2008, 04:17 PM
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awesome!... then this is the winner... Thanks all.. any more advice would be great
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Old 01-Feb-2008, 06:52 PM
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you can pick up a Y8 motor for pretty cheap
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Old 01-Feb-2008, 07:31 PM
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Well the cheapest i found around here was almost 800-1000.00 for something with 160-180,000 KM.... i just found an automatic with 95 K for 500 plus shipping so thats likely where im going if theres no biggie switching from auto- 5 speed
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Old 01-Feb-2008, 09:18 PM
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well, actually with the d16y8's the intake manifold and throttle body are different on the autos compared to the 5spd. However, you could just re-use your intake manifold.
The auto Y8's have a EACV on the bottom of the throttle body and no IACV on the back of the intake manifold (like a 5spd). So you'd go to put it in your car and realize that the plug for your IACV doesn't fit the 3 wire EACV on the auto y8's throttle body. Then you'd have to swap out the intake manifold b/c you can't even just put a IACV on the auto manifold and use a 5spd throttle body b/c the holes aren't there on the auto manifold for the IACV.
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Old 01-Feb-2008, 09:41 PM
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Good call. My buddy put an auto motor in his manual years ago and I forgot he had to switch those. Also, I heard once that the cam in an auto is different. Is that true?
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Old 01-Feb-2008, 10:48 PM
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EDIT: ok....

I would just swap the Intake Manifold...

I just re read it and i think what your saying is that i would swap the intake manifold.. and i would have the EACV just with nothing attached? because it would be hooked up to my intake manifold?

use my clutch and flywheel and thats it for what i would need?

Thanks guys.. im trying to pass all the info along before i make the decision on which motor

Last edited by drpdndshvd; 01-Feb-2008 at 11:39 PM.
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Old 02-Feb-2008, 04:49 AM
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You just need to swap your intake manifold and throttle body onto the auto motor, and use a new intake manifold gasket. And then your clutch and flywheel.
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Old 02-Feb-2008, 09:00 AM
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Thanks a ton for your help guys.. Im ordering the motor monday should have my car back on the road by next week! yay!

THANKS!
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