[Pata]

What year is your car?
What year is the y8 intake manifold out of?

 

[Safety_Driver]

What year is your car?
What year is the y8 intake manifold out of?

My car is '98 LX.
The IM is Y8 the seller said is '96-98. On the back of the mani says P2P ITP-6.
It's from auto tranny.

It looks like this one on the picture, which I guess is '99-00.

 

[Pata]

Yea that's air injection too. Seller BS'd you. Sucks. I say go put sugar in his gas tank

 

[4D2Envy]

Off with his head!!!!!!

 

[Safety_Driver]

Yea that's air injection too. Seller BS'd you. Sucks. I say go put sugar in his gas tank

So, what to do?

Is it gonna fit?

Are you kidding? :-(

 

[Pata]

It will still work fine. You have to cover those holes on the surface of the manifold and cap the nippl facing up. The put it on. It just sucks that people try to sell you stuff just to sell or they don't know what they're selling lol

 

[4D2Envy]

JB weld would suffice for those holes me thinks!


grab a nipple off a car in the junkyard!

 

[Safety_Driver]

Thanks for the advice to both of you!

p.s.
I didn't know that there is a difference b/w 96-98 and 99-00.
And ask the seller after I got the item... So it's my fault too :-|

 

[pumafeet10]

nice write up , as i had planned to do this as well, but car was stolen!

 

[hazer420]

Jb weld worked for me to cover the little holes and nipple on top

 

[hazer420]

Off with his head!!!!!!

agreed!!!! :death:lol!

 

[4doorcivic]

this is going to be my first big step on the EKSedan!! I'm looking forward to doing the swap as soon as I have everything I need. Right now all I got is.

Y8 Manifold.. Bare..maifold.

i got the same intake manifold and going to do the swap this weekend

 

[4doorcivic]

Holy crap that's crazy! I've never seen that one like that before.
Then yes, you did good my using a T to hose all that up and make it work.

Rare.. unless its shaved off..

i got the same one and problem connecting it!!!

 

[4doorcivic]

im not sure what d-series intake this is....but thats what i installed.
im missing a nipple under were the pcv valve is. its completely blocked off.

also the nipple by the throttle cable bracket is blocked off how did you fix that?

 

[Pata]

also the nipple by the throttle cable bracket is blocked off how did you fix that?

post pictures of the one you have.

 

[rodney]

Do i have to put the mount on or will it support it self?

 

[BlackOps_Civic]

99-00 D16Y8 Intake Manifold install with Air Assist Ports

This was a very helpful thread.
I did this install about 2 weeks ago and figured I should share my experience.

Parts Recommendation:

1. OEM Throttle body gasket part no. 16176-P2A-004
2. OEM Intake Manifold gasket for 99-00 part no. 17105-P2P-A01 (This gasket is a perfect fit with the 99-00 manifold, as it is meant for it; it will work fine on the D16Y7 head).
3. Extended Hose for PCV valve to intake manifold.
4. Extended coolant line (this hose sits center on the pipe that is right underneath the intake manifold).
5. OEM or aftermarket D16Y8 Intake.

Problems encountered:

1. Installing the AIT sensor on intake tube. Just needed to modify the grommet.
2. To lengthen the wires, I simply spliced away the black protective insulation. It was enough to get all the wires to their sensors.

Notes

1. Reused throttle body from my D16Y7 manifold, since it had all the working sensors on it already. Had to install the rotor from the D16Y8 throttle body. had to screw on the Map sensor and sensor gasket to the top of the throttle body.

Pictures

Here are pics of:
The injector wire colors, in case you get confused.
Map sensor wire colors, in case you get it confused with the TPS wires.
What I used (Item called Quick Steel from Advanced Auto Parts) to clog all 6 ports (4 small ports + 1 big port located where the manifold gasket mates. 1 large port on top of the intake manifold that sticks out.
Final installation pics to see how everything fits.

2 week Review

I personally did not notice or feel any performance gains...
It looks a lot nicer.
Fuel economy is the same, if not a little bit better my 0.2 MPG? I usually get 37MPG from overall daily driving. Now I am getting ~37.2MPG.
Was it worth doing this intake upgrade? Sure why not. It can only benefit the small D16Y7.
From briefly studying intake manifold design, the D16Y8 intake manifold is designed for best performance at higher Revs, especially when VTEC is engaged. Since D16Y7 is non-VTEC, not much of a gain is noticed.

 

[BlackOps_Civic]

D16Y7 and D16Y8 Intake Manifold Difference

Here are pics of both the manifolds for comparison purposes.

 

[Pata]

Do i have to put the mount on or will it support it self?

it will be fine alone. I had it like that and is STILL like that till this day. Not in my car. In another car. But it's still kicking :biggrin:

 

[Pata]

Here are pics of both the manifolds for comparison purposes.

I always advised people to use their same y7 throttle body when doing this swap and not the throttle body that may come with a Automatic y8 intake manifold. They're the same but since the stock y7 throttle has been in the car since it was born, why change it.