123.afro

i have torn all the emissions junk off my carb. now should i cut the the channel out of the manifold to match the other side?

teddyrx2

iTrader: (33)

i don't follow what are you asking and what do you mean by channel

MattG

iTrader: (2)

Ok ima take a guess in the dark here, and say that you want to port your intake manifold to match the intakes on the engine.

If that is what you are asking, then NO!

123.afro

yes that is what i am asking? what about the one flapper in there. I read that you can remove the lflapper plug the remaining holes?

Vashner

Hold on let me call Carmack the Magician so he can hold the envelope next to his head and guess what year and model you have.

Glazedham42

iTrader: (4)

Hahaha! You guys just crack me up sometimes. Afro, you are right both times. You should take the flapper out of the manifold and plug the hole that it leaves behind with some JB weld putty. Also, it has been proven by several people on the forum that you should also cut a channel between the primary and secondary ports to help to smooth out your idle.

See the picture below. This is from Jeff20B in the archives...



If you want to know more read here....

http://www.geocities.com/izzmus/openspacer.html

123.afro

awesome. do i want them exactly the same? I have a friend that works at a machine shop and he can mill it.

Glazedham42

iTrader: (4)

Yeah, just make them match. I did Mine with a chisel, a hammer, and a dremel. But if you had a friend that was willing to mill them out for you then that would work too...

123.afro

thanks man

'84-12A-GSL

Has anyone went to the extreme and made one large hole out of all 4 holes?

Or would that totally screw up the intake velocity?

So it would kinda look like this, but on an RX-7 manifold, not a V8 manifold.



Or even two large squares kinda like this.

Glazedham42

iTrader: (4)

Read the link I posted above...

http://www.geocities.com/izzmus/openspacer.html

It's been done before and apparently didn't yield very good results...

Jamie

123.afro

will this add power to my top end.-6000 rpm when its pulling alot of air? 12 a 85 gs