I been out of the rx7 for a while now and just started looking for parts again for my rx7, i was looking for the FC to FD intake adapter and i notice that raising rpm is out of business, so just wondering who else does them now?

eddie

 

I haven't seen any other company doing this,since the "blingie part" of that adapter was the eccentric manifold bolts.
I got the 2nd adapter from RPM(wanted the 1st,I wasn't informed..lol!).

There may be some info you may find interesting of you look up a thread called "FD upper on an FC"..by me.
Lots of guys posted.

 

Styx- what's the difference between version one and version two of the RPM adapter?

 

not sure what you speak of,I know there was s4 or S5 comparable parts,but I found this Youtube video to show the bolts.

 

I just notice I word it wrong lol. yeah is the FD upper to a s4/5 lower spacer. Sucks some companies comes with stuff like this and they go out of business. Ill talk to a friend to see if he can make one for me. Thanks

 

You can port match the 2 pieces to go together but the only thing is the outer runners where the FD upper bolts down.
The holes need be spaced more and it loses the material to properly bolt the setup down.
You can put more metal there and position the holes correctly if you have a welder.

 

yeah if i remember right the s5 bolt patter is closer to the fd pattern that the s4 lower. i might try that since ihave both lower manifold