yeah, what the title says, my car sometimes stumbles as i tip-in the gas, but its ALWAYS right at 10in/hg as read by my boost gauge.

Setup (and possible coulprits)
RC 550 injectors
used waldbro 255 HP
Uberdata, with basicly just a basemap, but the A/F's are just about perfect so i havent tuned it much yet, and its running with closed loop disabled since closed loop sucks with UD
theres a Wideband in the car

its also turbocharged, but it did it before i installed the turbo. It seems like it started after i installed the injecors, but im not sure.

anyone got any ideas? could it be the spacing of the injectors against the intake mani? because when i changed them there were plastic spacers there along with the o-rings (im assuming they put them in whenever the skunk2 mani was installed for fuel rail fitment), and i dident need the spacers to make it fit, so i took them out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StrangerWitCandy &raquo;</TD></TR><TR><TD CLASS="quote">yeah, what the title says, my car sometimes stumbles as i tip-in the gas, </TD></TR></TABLE>
Is it going lean? Does ud have a tip-in adjustment like hondata?

 

i dont see it going lean... my datalogging isnt hooked up right now so i dont know for sure, but ive tried upping the fuel values at that spot, and it hasnt helped.

uberdata has a tip-in adjustment, but its not as much at tip in, its just whenever i cross 10in/hg... i can tip in at any other level of vacuum or boost and its fine, its just when i cross 10in/hg. and i can hold it right at 10in/hg and it works fine too, so i dont think my fuel setting right there is off... im really confused. mabey ill try crome and see if it solves the problem.

 

up

 

up again... someone has to have an idea

 

i guess noone has any ideas.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StrangerWitCandy &raquo;</TD></TR><TR><TD CLASS="quote">i guess noone has any ideas.</TD></TR></TABLE>
Have you tried messing with the ignition timing in that area? (just an idea)

 

did you rescale the maps for the new injectors?

 

i did rescale the maps... i hadent thought about the timing though, should i try advancing or retarding it?

thanks for the help!

 

why dont you post timing and fuel maps? it would be a lot easier to troubleshoot

 

sounds like a good idea... but do you know any site that will host .bins?