does anyone here know if i can install a 13b cosmo intake manifold into my fd? i love the way it looks and i know it have bigger runners too. just wondering if anyone tried this.

where did you get that thing i want one?

i think jspecracer is doing this as well.

If you do this, you want to use the Fd throttle body or the 20b throttle body. The 13b cosmo throttle body is smaller than Fd.

so can i bolt it up to my fd? do i need to modify anything?

I think (but not sure) you have to use the cosmo lower inlet as well.



The other difference is that the cosmo motor has substantially larger intake ports on the plates- another 5mm or so larger on the bottom of the port, so if you use the lower cosmo intake as well you should port your FD plates to match.

Yea I belive that your gonna need the lower half to go with that.

It's on Ebay right? I just saw that myself.

I'm assembling parts right now to put a 13B cosmo onto my FD. For optimum performance you'll need:



1) the 13B cosmo lower intake manifold gasket(so if you port your motor, port match it to the gasket)



2) 13B Cosmo lower intake manifold



3) 13B cosmo upper to lower intake manifold gasket



4) 13B cosmo upper intake manifold



5) 20B cosmo throttle body



6) throttle body elbow of your choice



7) 13B Cosmo fuel rail(or fabricate your own)



8) block off the ACV on the outside of the 13B cosmo lower intake manifold



You can use the FD throttle body, HOWEVER if you go this route, you will need to get rid of your idle control valve. The reason you want the 20B throttle body is 1) It's bigger. 2) It already has an idle control valve on it.



You will need to relocate your air temp sensor to the throttle body elbow(or you could tap the cosmo intake manifold) and you will need to take off your FD TPS and bolt it up to the 20B cosmo throttle body.



Not the hardest project in the world. I think the hardest thing will be to get the throttle cable to work.

are all the parts hard to get? should i start to buy them piece by piece to get a set, or is there someone/where you know where i can get it all at once? Thanks for all the great info!

Piece it together...I'm in japan and I'm having a hard time finding the pieces. https://www.nopistons.com/forums/pub...1047683329.gif

what exactly is the benifit in doing this? how much more efficient is it