Ok I have this plan for a na 13b engine for my street/race car.

13bt engine mild/big streetport
atkins apex seals and thermal pellet mod...(Is there more reliablity mods?)

s5 n/a rotors

weber dcoe 48 carbs and a weber manifold

Racing beat streetable header/collector out a single pipe

distributor (not sure what kind I need I can get one off of a 12a? or what else is there?)

What do you guys think? am I missing anything? how much hp you think itll make? (200+?) This should make my engine bay real nice and clean, no emmisions no computers to cut my fuel or whatever.. easy to tune.

I was also wondering with the side draft setup it takes a bend out of the intake manifold. Im told that an Ida style will make more hp but loose tourqe. With a side draft I should make more hp over stock but loose tourqe? whats the deal with that?

 

39 veiws no thoughts? did I post this in the wrong section or somethin?

 

Right section, I just think the majority of people in here are more accustomed to fuel injected rotaries than carburated.
Someone will reply soon enough though...

 

I have a carbed BP, 4port 13b. What exactly do you want to know?
As for the Dist. An 83-84 dist will work fine. Mike Wiggins of RX7heaven actually set up my intire ignition. I think the total cost was $400. All wired up and ready to go, including coils. I'm currently having a leading spark intermitant failure but I dont think that has anything to do with the parts supplied.
As far as your choice of carbs, your going to want the downdraft not the sidedraft. That's where the power is. Your going to loose alot of weight with this setup. I have dual exhaust all the way back and my car weighed in at 2386lbs. I'll try to give advise anyway I can but since this is my first modified rotary I feel I wont be of much help. Sounds like a good setup to me, streetable and easy to tune with the exeption of the webber, but then again I know guys who think a IDA is as easy to tune as a Holley.
Hey I viewed this thread like four times just cause the subject.

 

I am an injection fan myself. But this is an honorable setup you are working on.
You are going for simplicity and that is understandable. But getting a good injection setup in the longrun would give you a better setup when done right.
It does cost more and takes more time to get it right though. But the challenge of the setup/project is where the real thrill lies for me. You can build your own manifold easily if you went the sidedraft route and save a few bucks there. Make a couple of aluminum flanges for the carbs and the housing side using respective gaskets for templates and use aluminum tubing. If you have access to a tig (preferable) or a mig welder it beats the hell out of paying $200 up for a RB.

If this is not your daily driver in that you have to have it running everyday you can take a little more time and put some unique touches like that and take a little extra pride with having fabbed some of these things yourself.
Best of luck with whatever you decide to do.

 

Actually, for what it's worth, I'd go turbo if I were you. These guys are getting insane HP from a N/A stand point. I mean 350fwhp is nothing for a turbo motor and is extremely streetable and damn reliable. Try that with my motor and your talking a couple of 1/4 mile run and thats it. You could buy a used TII motor for under $1000 including intake and possibly turbo. Then all you need is the TII ECU and wiring harness and your set. There's 200hp that will go forever, ok, for a long time. . Add a couple of mods and your at 300hp, 260rwhp! N/A just ain't gonna do it. If I had to start over I'd go turbo!!!

 

with side draft carbs, you have two choices on manifolds. one that wraps around to the top of the engine, and one that puts the carb over the headers..the latter is known as a lakecities style (i think). less torque, more heat, but more hp.. the u type manifold will give you more low end and cooler intake temperatures..

you could be looking at 200 hp, but not much more than that. but still a ncie setup.