Hey guys,
i got my AVCR in and my VAFC in last weekend. fisrt it seems that its taking a bit longer to spool now. my theory is that it wont tell the wastegate to open untill it has hit the pre-selected boost level. as opposed to my mechanical MBC. not sure, any thoughts on taht?

secondly, im absolutly LOST as to how to tune my VAFC ( I KNOW I NEED A DYNO!) but until i can get to one, i need some basic help. im running 310's with 8:1 FMU and Airtex pump. can ANYONE offer me some guidance and take this young jedi under their arm? please.......

 

I run 370s and a 6:1 fmu, my fuel pressure is set at 36 psi w/o vac (28 with vac). I have all of my correction points 600 rpm apart starting at 1000. I start with -38% correction at 1000 and work up to -29% at about 3800 and keep it there the rest of the rpm band, this is for the narrow throttle. My wide throttle starts at -22% at 1000 and works up to -5% at about 3800 and stays the rest of the rpm band. My throttle postions are lo 10%, hi 65%. I'm running about 8.5-9 psi of boost and its running great. I will be wide band dynoing this set-up next month so I can fine tune it, but so far so good. Keep in mind that your setting will require less correction since you have smaller injectors, but this should give you an idea. You could probably get away without using the v-afc and just running lower fuel pressure and letting the ecu handle the rest. That was what I was going to do but I got a good deal on the 370s. Anyway, good luck.

 

wow, awesome man!

anyone else?