need help W/ lt1 edit
 

this is a supercharged 97 ta ,ported heads ,cam, intake ,headers, crane hi6 ,ect ect anways it pull hard to 5200 rpms 400 rwhp ,then drops. new pump opti hi6.255 fuel pump . has anyone seen this .

Re: need help W/ lt1 edit
 

FMU? FP readings up top, o2 readings up top?

Re: need help W/ lt1 edit
 

my guess is the injectors are maxed and its pulling timing out at top end. hook up auto tap and see whats going on. the injector duty cycle shouldn't go over 80-85%

what size are your injectors? please dont tell me stock

roadtrip

Re: need help W/ lt1 edit
 

screw autotap slow azz crap get a scanmaster. and i second the injectors what size are they and what brand?

Re: need help W/ lt1 edit
 

holley 42lbs