When do I need A fuel controller?

[protur03]

This is for all that can help me with this question... I have the 2008 mazdaspeed3 I have installed the injen cold air, turboxs DP + MP, turboxs boost controller @17psi, and the turboxsBPV. thats what i got for my power upgrades. It runs good with no fuel cut now, but i want to buy the Exhaust Depot FMIC. Will i need a fuel cuntroller when i install it or will i be ok without it??? I dont have a dashhawk or anything so i dont knw how my A/F is doing.

 

[stars.eg6]

well i dont think you will need one quite yet and it should run fine but thats just me. i would invest in an A/F gauge so you can monitor whats going on before you mod more and get a map clamp or bcd just so when it starts to cool down you dont get fuel cut.

 

[protur03]

Thanks for the reply eg6, I plan on getting the dashhawk, but my finances got too low too fast with all the modding i did. so im stuck for now. I also have on the way the ATP boost cut defnder, and the protege garage fuel pump internals. Maybe this will help the need for more fuel???

 

[zilch321]

If I'm playing with boost the first question I'm asking myself Isnt where my fuel computer is, it's where my wide band o2 sensor is. I'm not sure any of us can tell you for sure how much you need a fuel computer, but the wideband can. If you put lots of money into performance parts and then muck up your A/V ratio you're missing out on HP you paid for. Something to chew on.

Good luck on your projects.

 

[protur03]

Thanks for he reply zilch. so then the dashhawk is the answer to my question. so It would be best if i waited on the installs right?

 

[aaronc7]

i have similar mods to you....had Intake/Turboback at first and it ran fine. When I added the fmic I got too much boost and ran into boost cut issues. This is all on stock boost, no boost control though. You would probably be able to adjust the mbc and keep it from boost cutting.

A dashhawk would be very wise for you I think. You need a good map clamp if you want to run 18 psi or so...which is what a lot of people do. But if you clamp it, your boost wont show up right in the dashhawk so you'll need a seperate boost gauge as well.

 

[lestat13]

I've heard a bunch of people saying they show lower boost pressures with their FMIC????

 

[protur03]

Hey Aaron how do ou feel about your exhaust depot FMIC?

 

[3.slow]

Hey Aaron how do ou feel about your exhaust depot FMIC?

Ebay FMIC FTW! GodSpeed intercooler $140 shipped.

 

[UHATEIT]

Ebay FMIC FTW! GodSpeed intercooler $140 shipped.

yeah but what piping did you get and how much did the piping cost?

 

[3.slow]

yeah but what piping did you get and how much did the piping cost?

No piping yo. Just have a shop do it, and it will still be cheaper

 

[_unknown]

if you install tpmic or fmic that is rated for more hp there should be less boost after install. boost is really a measurement of restriction. you want to be careful when purchasing an intercooler some of the stuff on ebay is junk and is more restrictive than stock parts. I have been building turbo cars and boats for 20 years now. a wide band O2 sensor is a must have if you plan to do any major mods. you may get a boost increase by having colder charge temp, but in most cases if you charge temp was the same on stock intercooler and the higher hp rated intercooler, the bigger core should have less boost.