Will i get more power from boost if i run 450cc injectors, instead of using an fmu?

 

two totally different things u got going on here

injectors will give you more fuel... but u need a way to control them.

FMU is just a shitty way of controlling your fuel use something better than an FMU

 

fmu's suck.

 

With bigger injector you need some way to tune them....Hondata, Crome, ETC. And FMUs suck

 

i know, my car is going to be tuned with crome.

 

go with the lager injectors and tuning

an FMU increases fuel pressure for a cheap way to richen the mix of A/F to run turbo setups without tuning, but they do not work very well IMO

 

agreed, FMU sucks donkey *****

 

okay, but that still does not answer my question, will i get more power, horsepower from boost ? even tho im sure i will

 

I would say you would get more power from tuning, and you can't really "tune" with an FMU. So the answer would be yes.

I'm sure you know this already, but you'll make the most power from an optimum a/f ratio. With an FMU you can't really control this precisely, you're basically using a mechanical means to dump more fuel in when it detects boost. It works, it's just inaccurate and the inaccuracies cause you to lose power.

 

i did know an fmu dumps more fuel, but why do ppl tell me you can not drive on a stock ecu. ( i am not driving on a stock ecu, but just one with a god awful tune on it).

 

? I have a stock ecu. Problem is you can't TUNE a stock ecu. Has to be chipped, so it can be writeable. Technically you could chip it yourself with a soldering iron and some radio shack parts. Right now I'm running stock ecu + fmu. Bad combo, but it's cheap. I'm just mechanically raising the fuel pressure so more fuel goes into the engine. This is pretty much unmonitored by the ECU..if you're running rich or lean, it can't fix it. As far as it's concerned, it thinks I just have the gas floored and would add that much fuel, plus whatever the FMU adds. The right way is to put in larger injectors, and have it tuned with a Hondata or whatever you decide, so that the ECU is holding the injectors open longer so more fuel goes into the engine. It's much more precise.

 

yes i have bought dsm injectors 450cc, and am going to get it tuned at the Whip Factory. i am just waiting to call him tomorrow to schedule something.