Found a DIY for the d16y8 Intake Manifold swap

[DsevenEm2]

are u really trying to revive this thread...lol

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[speedfoos]

If so, mind the EGR channel on the D17 that lines up with the coolant hole on the Y8....

[j182j]

then how are they getting these to work then?

[rick1574]

is anyone running this kinda set up? is it worth it?

[speedfoos]

I'll be running this setup by Christmas but will be cutting the Y8 flange off and getting the D17 injector plate welded on. It's racing season so my welder is busy.

[7thgen.nick]

are you going to use the stock d16 intake or go with aftermarket/custom?

[7thgen.nick]

what is a good fuel rail for return fuel system that would work fir this swap?

[speedfoos]

I'm going to use the stock Y8 mani with the the D17 injector plate welded to it so I can use my existing D17 fuel rail and injectors. It's already got the return bung on it. Then I'll either use the Y8 TB or get a flange machined for my D17 TB, I haven't quite decided yet.

[cinaibur]

hey Foos, I know a lot of people are using the y8 for turbo setups, but would this have any advantage on an NA build?

[speedfoos]

Technically any manifold will have advantage over our plastic manifold. As was pointed out to me by boiler, our mani causes the air to make a sudden change in direction (down, then back up) before going into the head. This can't be good for performance. However, reportedly, you won't see a lot of gains on an N/A setup strictly from just swapping the manifold. For an N/A, IIRC you want longer runners which is what the YB has when compared to our stock one. Honestly the skunk, venom, or edelbrock is desgined better for an N/A setup.

[02fpcivic]

Well if you use a stand-alone you can pull the EGR off and make a block off plate, or probably just unplug it to solve that problem.

Foos, runner length and diameter is determined by several factors, mostly its about where you need the power/where the engine will perform best. There are LOTs of other factors too though. The stock runners are actually longer than the Y8 if you measure them on center.

[cinaibur]

Originally Posted by speedfoos

Technically any manifold will have advantage over our plastic manifold. As was pointed out to me by boiler, our mani causes the air to make a sudden change in direction (down, then back up) before going into the head. This can't be good for performance. However, reportedly, you won't see a lot of gains on an N/A setup strictly from just swapping the manifold. For an N/A, IIRC you want longer runners which is what the YB has when compared to our stock one. Honestly the skunk, venom, or edelbrock is desgined better for an N/A setup.

Doesn't the aftermarkets lke the skunk and venom hit the firewall?

[tuningmycivic]

hence the need for hacking the firewall and relocating hose/wiring. it even says so in the DIY.

[speedfoos]

Yes but Jesus made 4" die grinders for little problems like that.

[thefivespeeder]

Originally Posted by speedfoos

Yes but Jesus made 4" die grinders for little problems like that.

LOL!