90accordIHI

either way, an uber base map would still be better than an FMU. touch lean in a few places, or run lean the whole time.

think about it. everyone has told you what you need to know, someone needs to lock this bitch up.

xtr-33m

hey hey

i am new here and came for some help in my setup

BTW i am in Australia :P


at the momenti am stuck as to what to do with engine management, i cannot afford a full management here its about $1.5kUS installed

i was considering fuel management only with following:

larger injectors
larger fuel pump
fuel management


but my 3rd option (one i need just to get the ar from a to b for now)

just run a fuel pressure regulator,

there are 2 types non rising, and rising, would non rising be safer for running 6psi on stock ecu?? or just go rising?


also i have a mazda B6 engine FWD version!

thanks

eddie

Chris Harris

Since when does an FMU run lean? In most cases they run pig rich...its the high fuel pressures that are dangerous to run.

There is no reason to lock this thread.

DeleriouS

that is what i thought...why is it dangerous to have high fuel
pressures? what if you have a bigger fuel pump - i have a 255lph walrbo.

Chris Harris

because your fuel system was designed to operate in the 30-50 psi range (give or take)

DeleriouS

and what would i be running with an FMU....so instead of rising the fuel pressures - why dont i add bigger injectors and downtune the fmu

DeleriouS

nevermind - u cant tune an fmu

Chris Harris

i love it when people answer their own questions

projekteg

i never had my first map tuned at all and with stock exhaust, stock cat, stock clutch, on 11psi, i put down 240whp, just barely going a little lean from 5-7k


as long as you have boost fuel eff. set high enough to where you already know it will give the engine enough fuel under boost, you're fine. vacuum maps almost always run rich on basemaps anyways so no worries there anyways. i don't think wb tuning is neccessary to run safe, to run effiecient yes, but not just to run safe. i ran my car on a basemap for 7 mos. raced at the track and beat the ---- out of it, finally got it on a dyno and my afr's were a little lean in the 5-7k range (low 13's), but nothing serious at all, and that was with boost fuel eff. set pretty low.



i honestly have total trust in a good basemap, the only real problem to me with a basemap is how they run in vacuum with no tuning.