I am looking to gain some power out of my fb. It's got just over 100k on the dash but it was in a flood and completely restored at about 60k. Eventually I would like to do some heavy modifications, but I want to start with some minor steps first. Any suggestions? I am getting the RB exhaust, and I have the RB intake canister. My only confusion with that is the stock can has like 4 air tubes coming out of it, the RB only has one hole. I'm wondering if I should just drill holes in the new one or if there is a different method. I only drive it in summer, the body is rust free (not so easy in buffalo), and it runs great.

 

Your still not looking at much increase with just exhaust and intake canister. If I were you I would buy universal presilencer and universal muffler from RB and have local exhaust do the rest and save 400-500$.

Then with the extra cash buy a Weber carb setup..

 

I'm guessing even NY doesn't smog 1980 cars, so start by ditching all the emissions equipment. - weight, + power. That'll take care of your extra air tube dilemma. Then port the intake manifold and do some mods to the carb. Free power!

 

By exhaust I meant full exhaust system, heads and presilencer. I already have the muffler. I am not too familiar with modding carbs or porting either. I just notice on youtube videos of fbs they run different pulley setups without the stock engine fan and the AC. I would like to start with cheaper mods. NY doesn't check the emissions on anything before 1995, but I don't want the noise to be outrageous. Are the universal parts basically the same? Also what do I do with the excess air tubes?

 

There are two main ways to gain power from a stock rotary.

1. Free flowing, tuned exhaust. The RB SP is the best one to get IMHO.

2. Better breathing carb setup. Theres lots of different ways to do this by either
replacing the carb with a better breathing setup (holley, weber, dellorto) or modifying
the stock carb and intake. Its easier to bolt on a new carb setup already tuned for
a rotary (RB holley or RB weber) than to modify the stock carb. Take your pick.

These are also in the order you want to do them. Getting a better carb without
the freer flowing exhaust is a waste of money and time. I think you on the right
track since you've got t he exhaust already.

Doing both of these will net you about 30 or more HP. My car with the mods in the
sig puts down 134 whp but I have a few more mods than just these. Still a stock
engine, never been opened yet.

 

Yeah, I agree; you're on the right track.

For those extra hoses you're concerned about, just remove them from the old cover and cap them. You don't need any of them, unless I'm mistaken...




.

 

Ok, but there is one hole in the RB intake can, which hose should I use for that? Also I was wondering about the different pulley setup with the electric radiator fan as opposed to the crank powered one... Is it worth the troubles? I was looking at the dual pulley setups that a lot of people run.