I just recently purchased a 1985 GSL-SE and the plates were bad, So I'm going to go with some 12A Plates StreetPort them and the 13B Housings.

My question is this

Can I use THIS
http://www.mazdatrix.com/r-weber.htm

Part Number 18112 Lower Manifold Half 13B (Non Turbo)

and Use my 13B Upper Intake half

Drill Holes in the Lower manifold Half (Part Number 18112 Lower Manifold Half 13B (Non Turbo) and mount my Fuel Injection and keep the Car with it's Stock Fuel Injection.

Thanks a Bunch

 

GO CARB!!!

I had a nice little 4 port 13b in my -7. I got an intake from an Rx-4 (Cosmo, REPU will work) and I used a Nikki carby.

Or, you could go with that side draft setup. I'd definitely go carb... after you do that, you get a TII exhaust manifold and get a blowthrough turbo hat for your carby...

 

Which Nikki did you use and did you have to modify it in any way?

 

stock Carb and manifold from a Rx4, cosmo or REPU will bolt up to a 13b 4port. because those cars came with a factory 4port n/a!! but are as rare as diamonds.

it's easier to buy a weber and 1 piece manifold from rotaryshack.com be sure to buy a 48mm, 45 to small

 

Drill Holes in the Lower manifold Half (Part Number 18112 Lower Manifold Half 13B (Non Turbo) and mount my Fuel Injection and keep the Car with it's Stock Fuel Injection.


This is what I'm planning on doing, Just ordered everything

 

I have a bunch of old RX4 intake setups complete with Hitachi carbs hoarded away.

 

hey man, trust me from presonal experience, go carbed. It's so much better ok.

 

Mine are all in use.

 

Wish mine were...

 

Why would you want to keep your stock fuel injection and put this manifold on? These manifolds are meant to make their power with the carb. Fuel injection is over rated, go carb I can gaurantee you'll appreciate the gain from that manifold and a weber.

 

Ok, I can't use a Carb on just a LOWER Intake Manifold can I?

This Carb thing is sounding intersting

 

No, that's why it's a lower intake manifold and not just an intake manifold.

 

got a 4 port racing beat intake for sale for 160. Also have a rebuild holley 650 for 90. I'll sale them both for 225.

thanks nate

 

if you do what RqrWalker said as far as the returning to efi and upgrade the injectors like some of the Turbo II's running 12's and lower would this setup be better than a blowthrough sys?

 

This post makes no sense. Maybe it's just me though.