i just put dsm 450s in a prelude sh 1998 model. the air fuel on the dyno is good tell 6k then it goes wacko. it lean out and gets rich right at 6k. it does this very quickly. uo and down up and down. this does this no mater what fuel pressure its at or and what vafc tunning.

i installed a 96 resitor box and dsm injectors. before this it ran fine. made 160hp on my mustang dyno.

any help

 

why the heck did you put in DSM 450s if you are only making 160?

 

too much fuel for your car, man.

 

cutomers car. he want them installed and is waiting on his turbo kit to get here. monday the #4 injector took a dump and he went ahead and bought these off the net.

i went back out and made another run after making this post. it was perfect. after 30min of tuning it made 170.1 and 135ft tq on a mustang