i am currently running dsm 450's , a 12:1 fmu and a safc to control the injectors, i have fuel at -30 acroos the board, i am running 9 lbs and 13 degrees timing, my question is . how much fuel can i safely pull out??? i would also like to turn the boost up a few lbs.....
tia
jonathan

 

From what i have read it seems that you can take your fmu out. And the Safc is only go to around 10-12 lbs before you get a cel. There is a good thread that was written by liam28 i believe. You may have to lean out the 450 a little more though, -35 .

 

i tried the hack and it made my car run like the poo, so i stuck the fmu back on and it runs good, i was just wanting to pull some more fuel out cause its runin really fat up top
-jonathan

 

take the fmu out and tune it some more. theres no need for a fmu with the vafc and 450cc. tune it and itll run 10 times better then the fmu setup.

 

As stated, get rid of fmu. 450s and afc + tuning will do the trick. U'll likely want to trim it a little more like closer to -40 across. 10-11psi would be the max u can run with stock O2.

A search will find you countless threads on this

 

i did a search , and i dont like the hack, what does the o2 sensor have to do with it??? you mean map???
-jonathan