Here is my list of mods:

1g BOV
UICP
o2 Housing
TBE
MBC set at 20psi
K and N cone filter

Why does my car feel slow? Almost as slow as stock.

 

get a tune, it will make a huge difference...but you could have a boost leak or an exhaust leak somewhere...just check all of your connections

 

You deffinatly need a reflash or engine managment of somekind.

 

my car have similar mods as your car. i was dynoed 260whp. after i tuned with UTEC = 290whp with 91 Oct.

 

I definitely need a tune. I'm picking up a S-AFC on Saturday so we'll see how it goes. Should my car be cutting fuel with those mods? I'm getting a hiccup under full boost every once and a while.

 

Make sure u get the wideband 02 gauge. Without tune, my car will wayyyyyyyyy lean (above 12:1) from 2000-5800 rpm and wayyyyyyyyy rich (10:1) from 6500-7500. After i sold my utec, i got the SAFC tuned 11:1 from 3000~7400 rpm

 

What does the wideband 02 gauge do? Does it give you a better idea of whats going on with the engine?

 

lean = more hp
lean = more heat = might melt engine part

Rich = less hp
Rich = cooler exhaust temp
Rich = more gas

 

Gotcha

 

lean = mean

 

What would be a good ratio to shoot for for a mild tune? I've been reading a little bit and it sounds like 11 or 11.5:1 is safe.

 

For 91 octane, i would stay in high 10 : 1 in case of bad gas.

i'm running in 10.8 : 1

 

Once I get the car tuned by the AFC, can I vent to atmosphere?

 

yea my car hiccups as well on high boost. When i get to 21 pounds it will do a fuel cut on me. I was pushing 265 whp but i need to tune the ecu in order for it to work properly and i can also get a lot more horsepower..