dsm injector/vafc tuning
 

i just installed dsm 450cc injectors on my ls/vtec.. i have a skunk2 ecu, skunk2 intake manifold. thats pretty much all the bolt ons i have.. my car idles like a big block with cams.. no matter what rpm i have the motor at, it does not have hardly any power...i know im running very rich and i need a vafc to control the air fuel.. but i have no idea how to tune my vafc.. if anyone has tuned theres after doing an install like this or just knows how to tune one, i would appreciate the help.. any comments or advice would be greatly appreciated.. thanx

do you have an egt/a-f gauge to tell youre runnings?
Youre not gonna do too well of a job just guessing what the a/f ratio is if ya dont

yeah i have an air/fuel gauge.. it runs rich.. but it always has ever since i have put the skunk2 ecu in.. the skunk 2 ecu delivers more fuel (especially when vtec engages). so it has always ran a little rich..

ok...well if you have another ecu, just run that until you get it tuned (i know this is really simple stuff...but its the best I can tell ya w/o a afc of my own.).

your posts confusing...do you already have the afc? or are you planning on getting one?

If you're already running rich then why would you get bigger injectors???

The whole point of upgrading injectors is because the stock one's can't deliver a stoich mix much less a rich one...

I'd recomend taking out those injectors.

if you're not turboed then there is NO need for 440's in a ls/vtec...

i already have the vafc..its already hooked up and tuned.im leaving the injectors on there because its getting turbo'd soon and i will need those.. my ecu only made it run rich during full throttle.. but now i got it tuned and it runs fine.. thanks for the help