i did bought an fd manifold and i'm going to do the swap soon...i wonder if anyone done this before.i thing yes,and how exactly did it?any pic?any help welcome....

 

Hmm i'm pretty sure there is a thread on this somewhere i'll search some for ya, but if you haven't yet hit up the search

 

lower manifold wont fit, you use the stock T2 manifold and use an adapter to use the FD UIM, for minimal gains.

 

I would use an s5 LIM. You will need an adaptor.
With no mods this wouldn't be a good upgrade. But if you have many mods this only helps the car breath. GOOD LUCK

 

this setup does not use any adapters,its a JDM S5 T2 lower and a S6 USD upper,the manifold got port matched and the holes on the upper one were opened up a little bit,i did use a T2 gasket,on the center plate the complete oil filler tube was replaced with a third gen asembly

 

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/what-makes-fd-intake-manifold-better-than-t2s-714929/ discusses some of the differences. The FD LIM is inferior.

 

Is there anybody making the spacer anymore?

 

no need for a spacer if you can use a grinder but contact japan2la or hes friend robert they may have the spacer

 

I wonder if there is a way to relocate the mounting holes on the lim to bolt directly to the engine?

 

there its only one bolt that wont go in(upper right corner)so if you get that corner of a t2 mani and welded to the fd mani it may work,but welding aluminum its a pain in the ***.

 

Couldn't you just drill a hole? Or will it not reach?

also, i thought the ports didn't line up.

 

also wonder if they use the stock fd throttle?

 

look at the pics...

yes.

 

no wont work,the bolt its offset.