just installed a new fuel pump today. Running alot richer now. So i was wondering if i just need to change my fuel cells to lean it out or do i need to change the enrichment to?

 

is this your only mod?

 

No i already tuned that car before i did the pump. I was just wondering what i need to change because, when i hit the gas it feels like it just gets a mouthful of gas stutters then takes off im running 10.2 on my wideband now to before i had her running about 11-11.4 so i was wondering about the stuttering when i hit the gas hard. i Knew that the pump was going to richen me up, im not worried about that ill tune that back down im just curios about the stutter.

 

could it be your coil packs? not burning fuel!?! did you check your plugs?

 

nah i dont think so, i think its just my accel enrichment. I just need to figuree out how much to reduce it buy i guess.

 

nobody else has any suggestions on what to tune with a fuel pump install

 

When i took my car for a tune all the tuner did was lean out my high octane map. What you can do is change you inj. scaling lower to run a little leaner.

 

no, thats not a good idea..


lean out between 100-180 (possibly more depending on the car) from 3500 to 6500 a little...


thats where the walbro has the most influence.

if you need assistence, PM me.

cheers!

 

thanks man, if i need any other help ill let you guys know.

 

theres a write up somewhere on here, where it points to exactly what spots of the map "typically" need changes for basic mods. Its very helpful for getting started. Just take baby steps, nothing to significant and itll knock before you have a real problem

cheers!

 

I plan on installing a walbro 255 in the near future and would like to read the write-up. Does anybody know the link to this write-up?

 

Nah i fixed it, Just leaned it out pretty much in my high load cells 260+ load and my cruising cells. Im keeping straight 11.3's now not leaning out at all but this is only with 22lbs of boost. Im going to take the boost up and tune some more this weekend when the track opens on race gas. But i just changed my fuel trims a little and my accel enrichment alittle and i was good. Even better then before.