hello everybody.

this is my setup.

D14A4
T3 .48 .67 (internal gate)
SMIC
2" from turbo to ic
2.5 from ic to TB
450's
SAFC

whan i cruise around the car reacts fine. but when its beginning to boost it has some kind of hasitation from 3500rpm to 5000, and than from 5000-7000 it settled down and continue to boost.

i checked all charge pipes and no leaks.

what can cause such a thing?


EDIT:almost no detonation NO pinging

 

Running rich? My car does that sometimes. When I mash the throttle the untuned ECU will sometimes freak out and drop my AFR to 10.5:1, and it will hesitate for a split second until the short-term fuel correction fixes the AFR.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beepy &raquo;</TD></TR><TR><TD CLASS="quote">Running rich? My car does that sometimes. When I mash the throttle the untuned ECU will sometimes freak out and drop my AFR to 10.5:1, and it will hesitate for a split second until the short-term fuel correction fixes the AFR.</TD></TR></TABLE>

so is it hesitateing because not all the fuel burnes?