someone please help!

[boostluce]

ok so my del sol has a d16z6 in it, i recently installed a turbo kit on it which consists of
t28 turbo from an sr20det
log manifold
front mount
greddy type-s
stock injectors
vafc

now heres the thing, i put a step colder ngk plugs in it as well and did the normal tune up to it before running it, but when i floor it and it goes to about 4.5-5k rpms it backfires and just loses all power, even when i rev it up and dump the clutch it will do this, i messed around with the timing and cant seem to figure out what is going on, the car is set to run at about 7psi and my brother had the same setup on his del sol and it went fine.....any input?

[boostluce]

and just to add if i keep it under those rpm's and drive it normal, its fine, spools up ok no backfiring/missfiring, only when more than half throttle and higher rpms

[P-CRIDER]

Well befor u blow ur car up get bigger injectors 450's should be good

[boostluce]

i had 450's on it before and it runs toooooooo rich, i tried leaning it out with the vafc as much as 50% to all rpms and i cant even get the fuckin thing to idle the 450's

[P-CRIDER]

Well vafc isnt the best tune devise i would get in contact with a shop/tunner an explan them the problem there prob going to want to look at the car cuz there could be a few problems with it..sounds like it needs a proper tune..

[boostluce]

someones gotta know! im painting the car this weekend and want it to be ready for this week!!! lol im lost with this problem

[pimpbebe847]

u put your wires on right

[boostluce]

yea i heard vafc is somewhat garbage, but still my brother had noooo tuning at all on stock injectors at the highest of 12psi and ran good, i dont understand why its cuttin out so hard

[boostluce]

pimp what wires u talkin about? on the vafc? i think so i went over it twice and seemed ok, should i uninstall it and see if it helps?

[pimpbebe847]

ya uninstall it should drive better

[pimpbebe847]

dddd

well u caint just put injectors because u ganna get fuil cut and your car needs to be tune

Well befor u blow ur car up get bigger injectors 450's should be good

[boostluce]

ill give that a try when i get outta work, thanks dude

[cdoc9]

Get ur car tuned

[AWDream]

boost leak? bad map sensor? needs a tune? timing isn't off a tooth on the belt, right? dizzy is good?

[boostluce]

and just for a little insurance, if i take the vafc off and this still presists what should i look at now?