I am thinking about getting a new bored out intake manifold and i was wondering what would be better to control the fuel a fuel pressure regulater like a rpw one or a apexi afc im up for ideas

 

I'd say get both, they both do different things.

The AFPR will allow you to change your fuel pressure. The AFC will allow you to change your A/F.

 

danm only if i found a afc controller that isnt $400

 

If all you have is an intake manifold, neither.

 

well the stage one a2 designs comes with manifold , fpr, and fuel rail so im thinking it wouldnt matter with a afc becuase the manifold is a 4G94

 

The gains you would get when you don't have a lot of mods is pretty minimal and I don't think worth the price of the unit. Wait till you have more done to get a tune, then you'll be laughing.

 

umm my car isnt stock so ya i have the mods to support it cai , 2.25 exhuast , and piggy

 

That's not enough in my opinion, an intake doesn't do much, it's just a fancy noise maker, same goes for the exhaust. If you have the piggy, why not buy the software to tune that? It seems silly to have two piggybacks when they do the same thing.

 

it would be silly to replace the piggy with an afc also being that the piggy(if it rrm) has more tuneability... if you are gonna get a new piggy at least get something better.

 

skipping header to go straight to IM mod . . . man, that's like burning a hole in your wallet. It's like putting a turbo system w/o any exhaust work.

 

well i really dont see headers as a gain in hp just for looks im buying a greddy e-manage and a rrm fuel rail, 4G93 ported manifold , bigger injectors and selling the rrm piggy i have

 

Headers are a basic bolt on mod, if you can't get the gas out why try to cram more air in?

 

I got a Piggy for sale really cheap.

http://cgi.ebay.com/ebaymotors/02-06...44386677QQrdZ1

 

if you tune with the ported manifold you should get a decent gain. throw in a bored tb.

 

I'm convinced that if you open up the intake side too much (ie. you don't have a suitable amount of exhaust mods), the efficiency of the motor plummets. Before I got my exhaust my gas mileage was about 400 km to a tank. Now I can go over 600 without needing to fill up. Tuning might have helped it, but why tune before you have everything done? You'll just have to retune the engine everytime you add something which, if you get it professionally tuned, can get expensive.